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Contents
- The climate of Ushuaia
- The best time to visit Ushuaia
- The worst time to visit Ushuaia
- Spring weather in Ushuaia
- Summer weather in Ushuaia
- Autumn weather in Ushuaia
- Winter weather in Ushuaia
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average sea temperature
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Ushuaia
Ushuaia, Argentina, sits under the Köppen climate classification of ET, predominately embodying Tundra characteristics. This southernmost city in the world is located on the island of Tierra del Fuego and is surrounded by the Magellan Straits to the north and the Beagle Channel to the south.
Throughout the year, the average high temperatures fluctuate between 0.9°C (33.6°F) in July to 11.1°C (52°F) in February, while the low temperatures range from -2.7°C (27.1°F) to 3.9°C (39°F) during the same periods. Over the months, changes in temperature are consistent with the transition of seasons.
The rainfall in Ushuaia exhibits variation over the year, with a peak of 69mm (2.72") in January, and a minimum of 39mm (1.54") in September. Concurrently, the number of rainfall days varies from 11.9 days in August to 27.4 days in January. Besides, snowfall is considerable during the colder months, reaching a maximum of 230mm (9.06") in June, calling attention to Ushuaia's unique chilly weather conditions.
The relative humidity fluctuates moderately throughout the year from 75% to 89% while wind speeds range from 13.2km/h (8.2mph) to 16.7km/h (10.4mph), with peak gust speeds of 23.2km/h (14.4mph) in July and December. The sea temperature stays between 6°C (42.8°F) and 8°C (46.4°F).
Throughout the year, the average high temperatures fluctuate between 0.9°C (33.6°F) in July to 11.1°C (52°F) in February, while the low temperatures range from -2.7°C (27.1°F) to 3.9°C (39°F) during the same periods. Over the months, changes in temperature are consistent with the transition of seasons.
The rainfall in Ushuaia exhibits variation over the year, with a peak of 69mm (2.72") in January, and a minimum of 39mm (1.54") in September. Concurrently, the number of rainfall days varies from 11.9 days in August to 27.4 days in January. Besides, snowfall is considerable during the colder months, reaching a maximum of 230mm (9.06") in June, calling attention to Ushuaia's unique chilly weather conditions.
The relative humidity fluctuates moderately throughout the year from 75% to 89% while wind speeds range from 13.2km/h (8.2mph) to 16.7km/h (10.4mph), with peak gust speeds of 23.2km/h (14.4mph) in July and December. The sea temperature stays between 6°C (42.8°F) and 8°C (46.4°F).
The best time to visit Ushuaia
Ushuaia offers different attractions corresponding to the seasons, but the best time to visit would be during the austral summer months, particularly from December to March. During these months, the city enjoys longer daylight hours ranging from 13.9 hours in December to a peak of 17.2 hours in January. The high temperature remains between 7.3°C (45.1°F) and 10.2°C (50.4°F) offering milder and more enjoyable weather conditions for outdoor activities.
The worst time to visit Ushuaia
The period from May to September can be challenging for visitors. The city endures harsh winter conditions with low temperatures dropping to as low as -2.7°C (27.1°F) in July and significantly high snowfall. In fact, June witnesses the highest snowfall of the year at 230mm (9.06"). The daylight hours are considerably less, ranging from only 7.3 hours to 10.3 hours, limiting the length of outdoor activities. Unless geared for winter sports or specific winter events, these months might challenge most visitors.
Spring weather in Ushuaia
Ushuaia's spring, extending from September to November, welcomes gradual warmth. The average high temperatures transition from 4.4°C (39.9°F) in September to 8.9°C (48°F) in November, while the lows oscillate from -1.2°C (29.8°F) to 1.2°C (34.2°F). Rainfall is relatively moderate from 39mm (1.54") to 57mm (2.24"), and the number of sunshine hours increase from 5.8 hours in September to 7.8 hours by November.
Summer weather in Ushuaia
The summer months are the warmest in Ushuaia with the average high temperature reaching 10.2°C (50.4°F) in January from 8.9°C (48°F) in December. Night-time temperatures range between from 1.2°C (34.2°F) to 2.5°C (36.5°F). The rainfall is relatively high in January at 69mm (2.72") with a minor dip to 59mm (2.32") in February. Importantly, the sunshine duration blossoms, staying between 7.8 hours and 7.6 hours, which means longer days for sightseeing and outdoor activities.
Autumn weather in Ushuaia
Autumn in Ushuaia, stretching from March to May, brings in an evident drop in temperatures. The average high temperatures fall from 9.6°C (49.3°F) in March to a chilly 3.5°C (38.3°F) in May. The number of rainfall days increases substantially while the rainfall amount varies with minor fluctuations. The amount of daily sunshine drops steadily from 5.3 hours in March to 3.4 hours to May, shortening the days substantially.
Winter weather in Ushuaia
Winter in Ushuaia, from June to August, is intensely cold with the average high temperatures lingering from 1°C (33.8°F) to 1.8°C (35.2°F). The lows can descend to -2.7°C (27.1°F) in July. During this season Ushuaia welcomes substantial snowfall, with a high of 230mm (9.06") in June. The city encounters the shortest daylight hours, dwindled to only 7.3 to 7.8 hours a day, and the amount of sunshine dwindles between 3 to 3.1 hours a day. Despite the colder periods, it still holds appeal to winter sports enthusiast and lovers of winter landscapes.
Weather in January
Ushuaia enters the new year with the highest average high temperature of 10.7°C (51.3°F), providing a mild start to the year. January is also a well-balanced month weather-wise, mixing comfortable warmth and fairly stable weather conditions. Weather in January »
Weather in February
February continues the pleasant weather introduced by January, but has slightly lower rainfall of 59mm (2.32"). The month presents a beautifully orchestrated weather concerto, rarely spiralling into extreme conditions. A moderate wind adds a mild chill to the air, encouraging outdoor enthusiasts to take full advantage of the unique landscapes of Ushuaia, from the glacial peaks to the Beagle Channel's aquamarine waters. Weather in February »
Weather in March
As autumn starts, March ushers in a shift in climate characterized by cooler daily high temperatures and higher relative humidity. Despite the decrease in temperatures, the condition still remains quite manageable, facilitating productive exploration of Ushuaia's natural wonders. Weather in March »
Weather in April
The weather in April signals the onset of colder conditions, with a notable decrease in temperature and a substantial increase in snowfall to 69mm (2.72"). With the arrival of winter, Ushuaia's landscape morphs into an icy wonderland perfect for winter sports, particularly skiing. Weather in April »
Weather in May
The weather in May shows winter in full swing with Ushuaia experiencing its coldest average low temperature of -2.3°C (27.9°F). Despite the significant chill, there's an undeniable charm in experiencing Ushuaia's frosty terrain. While snowfall intensifies, the city's warmth shines through its downtown areas, which are usually decorated with colourful buildings against the backdrop of stark white snow. Weather in May »
Weather in June
June carries on the cold trend, with a record snowfall of 230mm (9.06"), transforming Ushuaia into a winter wonderland. The blanket of snow enhances the city's panoramic sights, especially when accentuated by the dwindling daylight hours. Weather in June »
Weather in July
Coming off the extensive snowfall in June, July follows closely with a considerable level of snowfall at 165mm (6.5"). Given the continuous snowfall, the endless white vistas of Ushuaia lure winter sports enthusiasts from around the globe. Weather in July »
Weather in August
August brings a slight bounce back in temperature and hints at the approaching end of winter. The snowfall still continues but the weight of the harshest winter month begins to lift. As the daylight hours start to increase again, there's a noticeable change in the atmosphere around the city. Weather in August »
Weather in September
With a notable increase in temperature, Ushuaia greets September with blossoming optimism as the city prepares to shake off winter. The reduction of snowfall and rising temperatures are a clear indication of climate transition towards more comfortable conditions. Weather in September »
Weather in October
October stands as a transitional month, carrying the city further away from winter's grasp and inching it closer to summer. The increased daylight hours and diminishing snowfall contribute to a shifting dynamic within Ushuaia's weather spectrum. Weather in October »
Weather in November
November in Ushuaia promises the return of warmer weather and minimal snow, setting the stage for the impending summer. The retreat of the snow reveals Ushuaia's varied landscapes, rejuvenated by the season's warmth. The fresh wind, scented with blooming flora and the sea's salty tang, breathes life into the city. Weather in November »
Weather in December
December in Ushuaia welcomes the arrival of summer with an average high temperature of 10.2°C (50.4°F) and full 17.2 hours of daylight. Being the beginning of summer, December is marked by a vibrant atmosphere and extended daylight hours, ideal for sightseeing, hiking, or simply enjoying Ushuaia's natural beauty. Weather in December »
Updated: Jan 25, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the wettest month in Ushuaia?
The month with the most rainfall is January, when the rain falls for 27.4 days and typically aggregates up to 69mm (2.72") of precipitation.
How much does it rain in Ushuaia?
Throughout the year, in Ushuaia, there are 239.1 rainfall days, and 628mm (24.72") of precipitation is accumulated.
When does it snow in Ushuaia?
January through December are months with snowfall.
When it does not snow in Ushuaia?
January is the month with the least snowfall. Snow falls for 1.1 days and accumulates 6mm (0.24") of snow.
How much does it snow in Ushuaia?
Throughout the year, in Ushuaia, Argentina, there are 96.6 snowfall days, and 1183mm (46.57") of snow is accumulated.
When is the sea warmest in Ushuaia?
January through April, with an average sea temperature of 8°C (46.4°F), are months with the warmest seawater in Ushuaia, Argentina.
What is the hottest time of year in Ushuaia?
Ushuaia's February weather, marked by an average high temperature of 11.1°C (52°F) and an average low temperature of 3.3°C (37.9°F), is the warmest in the year.
What is the month with the highest UV index in Ushuaia?
February is the month with the highest UV index, with an average maximum UV index of 3.
When is the lowest UV index in Ushuaia?
May, July and August, with an average maximum UV index of 1, are months with the lowest UV index in Ushuaia, Argentina.
What is the most humid month in Ushuaia?
With an average relative humidity of 89%, June is the most humid month.
When does it snow the most in Ushuaia?
June is the month with the most snowfall. Snow falls for 16.1 days and accumulates 230mm (9.06") of snow.
What is the month with the shortest days in Ushuaia?
With an average of 7h and 18min of daylight, June has the shortest days of the year in Ushuaia, Argentina.
What is the month with the least sunshine in Ushuaia?
With an average of 3h of sunshine, June has the least sunshine of the year.
What time of the year is the coldest in Ushuaia?
July is Ushuaia's coldest month, registering average high temperatures of 0.9°C (33.6°F) and lows of -2.7°C (27.1°F).
What are the months with the coldest sea water in Ushuaia?
July through October, with an average sea temperature of 6°C (42.8°F), are months with the coldest seawater.
What is the driest month in Ushuaia?
September is the month with the least rainfall in Ushuaia, Argentina. Rain falls for 14.2 days and accumulates 39mm (1.54") of precipitation.
What is the least humid month in Ushuaia?
The months with the lowest humidity are November and December, with an average relative humidity of 75%.
What month has the most sunshine in Ushuaia?
With an average of 7.8h of sunshine, November has the most sunshine of the year in Ushuaia, Argentina.
When are the longest days in Ushuaia?
December has the longest days of the year in Ushuaia, with an average of 17h and 12min of daylight.
Is there Daylight Saving Time (DST) in Ushuaia?
Ushuaia does not observe Daylight Saving Time (DST). -03 timezone is used throughout the entire year.
Average temperature
Ushuaia, Argentina
The warmest month (with the highest average high temperature) is February (11.1°C).
The month with the lowest average high temperature is July (0.9°C).
The month with the highest average low temperature is January (3.9°C).
The coldest month (with the lowest average low temperature) is July (-2.7°C).
Average pressure
Ushuaia, Argentina
- Average pressure in January:
997.1mbar - Average pressure in February:
999.5mbar - Average pressure in March:
1000.3mbar - Average pressure in April:
1000mbar - Average pressure in May:
999.9mbar - Average pressure in June:
997.3mbar
- Average pressure in July:
1001.9mbar - Average pressure in August:
1000.1mbar - Average pressure in September:
1003.1mbar - Average pressure in October:
1000.2mbar - Average pressure in November:
996.9mbar - Average pressure in December:
996.4mbar
The month with the highest atmospheric pressure is September (1003.1mbar).
The month with the lowest atmospheric pressure is December (996.4mbar).
Average wind speed
Ushuaia, Argentina
- Average wind speed in January:
16km/h - Average wind speed in February:
15km/h - Average wind speed in March:
14.7km/h - Average wind speed in April:
13.9km/h - Average wind speed in May:
13.2km/h - Average wind speed in June:
13.5km/h
- Average wind speed in July:
13.3km/h - Average wind speed in August:
13.2km/h - Average wind speed in September:
14km/h - Average wind speed in October:
16.1km/h - Average wind speed in November:
16.7km/h - Average wind speed in December:
15.7km/h
The windiest month (with the highest average wind speed) is November (16.7km/h).
The calmest months (with the lowest average wind speed) are May and August (13.2km/h).
Average humidity
Ushuaia, Argentina
The month with the highest relative humidity is June (89%).
The months with the lowest relative humidity are November and December (75%).
Average rainfall
Ushuaia, Argentina
The wettest month (with the highest rainfall) is January (69mm).
The driest month (with the least rainfall) is September (39mm).
Average rainfall days
Ushuaia, Argentina
- Average rainfall days in January:
27.4 days - Average rainfall days in February:
23.3 days - Average rainfall days in March:
24.6 days - Average rainfall days in April:
19.7 days - Average rainfall days in May:
17.8 days - Average rainfall days in June:
14.8 days
- Average rainfall days in July:
14.9 days - Average rainfall days in August:
11.9 days - Average rainfall days in September:
14.2 days - Average rainfall days in October:
19.9 days - Average rainfall days in November:
23.7 days - Average rainfall days in December:
26.9 days
The month with the highest number of rainy days is January (27.4 days).
The month with the least rainy days is August (11.9 days).
Average snowfall
Ushuaia, Argentina
- Average snowfall in July:
165mm - Average snowfall in August:
203mm - Average snowfall in September:
159mm - Average snowfall in October:
100mm - Average snowfall in November:
101mm - Average snowfall in December:
32mm
The month with the highest snowfall is June (230mm).
The month with the least snowfall is January (6mm).
Average snowfall days
Ushuaia, Argentina
- Average snowfall days in January:
1.1 days - Average snowfall days in February:
1.3 days - Average snowfall days in March:
2.2 days - Average snowfall days in April:
6.3 days - Average snowfall days in May:
8.4 days - Average snowfall days in June:
16.1 days
- Average snowfall days in July:
14 days - Average snowfall days in August:
16.2 days - Average snowfall days in September:
11.1 days - Average snowfall days in October:
8.3 days - Average snowfall days in November:
7.6 days - Average snowfall days in December:
4 days
The month with the highest number of snowfall days is August (16.2 days).
The month with the least snowfall days is January (1.1 days).
Average sea temperature
Ushuaia, Argentina
The best months for swimming (with the highest average sea temperature) are January, February, March and April (8°C).
The coldest months (with the lowest average sea temperature) are July, August, September and October (6°C).
Average daylight / Average sunshine
Ushuaia, Argentina
- Average daylight in January:
16h and 4min - Average daylight in February:
14h and 4min - Average daylight in March:
12h and 3min - Average daylight in April:
10h and 2min - Average daylight in May:
8h and 2min - Average daylight in June:
7h and 2min
- Average daylight in July:
7h and 5min - Average daylight in August:
9h and 4min - Average daylight in September:
11h and 4min - Average daylight in October:
13h and 5min - Average daylight in November:
16h and 0min - Average daylight in December:
17h and 1min
The month with the longest days is December (Average daylight: 17h and 12min).
The month with the shortest days is June (Average daylight: 7h and 18min).
- Average sunshine in January:
7h and 2min - Average sunshine in February:
6h and 1min - Average sunshine in March:
5h and 2min - Average sunshine in April:
5h and 3min - Average sunshine in May:
3h and 2min - Average sunshine in June:
3h and 0min
- Average sunshine in July:
3h and 1min - Average sunshine in August:
5h and 1min - Average sunshine in September:
5h and 5min - Average sunshine in October:
6h and 0min - Average sunshine in November:
7h and 5min - Average sunshine in December:
7h and 4min
The month with the most sunshine is November (Average sunshine: 7h and 48min).
The month with the least sunshine is June (Average sunshine: 3h and 0min).
Average sunshine days
Ushuaia, Argentina
- Average sunshine days in January:
1.4 days - Average sunshine days in February:
3.1 days - Average sunshine days in March:
3.7 days - Average sunshine days in April:
4.8 days - Average sunshine days in May:
6.9 days - Average sunshine days in June:
5.3 days
- Average sunshine days in July:
6.6 days - Average sunshine days in August:
7.8 days - Average sunshine days in September:
7.3 days - Average sunshine days in October:
5.2 days - Average sunshine days in November:
2.4 days - Average sunshine days in December:
1.3 days
The month with the most sunshine days is August (7.8 days).
The month with the least sunshine days is December (1.3 days).
Average UV index
Ushuaia, Argentina
The month with the highest UV index is February (UV index 3).
The months with the lowest UV index are May, July and August (UV index 1).
Average cloud cover
Ushuaia, Argentina
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 55).
Average visibility
Ushuaia, Argentina
The months with the highest visibility are January, February, March, October, November and December (9km).
The months with the lowest visibility are April, May, June, July, August and September (8km).
Ushuaia, Argentina
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