Climate and monthly weather forecast
Snow Hill Island, Antarctica

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A family of penguins on Snow Hill Island in Antarctica
A family of penguins on Snow Hill Island in Antarctica

The climate of Snow Hill Island

Snow Hill Island, positioned in Antarctica, falls under the Köppen climate classification of EF, which indicates an Ice Cap climate. A distinctive feature of the location is an annual weather pattern marked by extensive periods of extremely cold temperature and virtually absent precipitation. To better understand the weather behavior, a dive into the specifics brings out the clear weather patterns.

Examining the temperature trends, a prolonged period of below freezing temperatures is evident throughout the year. The warmest months are January and December with high temperatures achieving 3°C (37.4°F). Conversely, July and August witness the most biting temperatures with highs reaching -14°C (6.8°F) and lows of -21°C (-5.8°F). The lower temperatures frequently swing from -1°C (30.2°F) in January to a minimum of -21°C (-5.8°F) in both July and August.

Rainfall is sparing and fluctuates from a high of 12mm (0.47") in May to a scant 2mm (0.08") that is recorded during both January and December. Interestingly, May also has an extended number of rainfall days at three, as opposed to just one in the rest of the year. Snow Hill Island bathes in sunlight for an average of 6 hours per day annually with sunlight hours ranging from a peak of 10 in December to none in June.

The best time to visit Snow Hill Island

Planning a trip to Snow Hill Island demands careful consideration of the weather since extreme conditions can make visitations quite challenging. However, relatively amiable weather is observed during the December-January window. High temperatures during this period approach a modest 3°C (37.4°F). Sunshine is abundant with 10 hours recorded in December, making it an opportune time for daytime outdoor activities. Rainfall, measures at a paltry 2mm (0.08") average for both months, providing for drier days.

The worst time to visit Snow Hill Island

Contrarily, visiting Snow Hill Island proves most difficult during the July-August period. Temperatures during this time dip significantly with the high at a chilling -14°C (6.8°F) and the low touching a bitter -21°C (-5.8°F). Sunlight is scarce, averaging roughly two hours daily, reducing opportunities for engaging in outdoor activities. The UV index plummets to 0 making it a less than favorable period to plan a trip to Snow Hill Island.

Spring weather in Snow Hill Island

On Snow Hill Island, a typical spring commences from September to November. During these months, temperatures range from -13°C (8.6°F) to -2°C (28.4°F). Rainfall measures an average of 5mm (0.2"), accompanied by one rainfall day per month. Hours of DAYLIGHT last 8.3 hours in September, increasing to 18.4 hours by November. Sunshine appears to enhance from 4 hours per day in September to 8 hours in November, offering a bright and relatively drier season.

Summer weather in Snow Hill Island

Summer in Snow Hill Island spans December to February, bringing along slightly milder weather conditions. High temperatures in these months fluctuate from 3°C (37.4°F) in January to 0°C (32°F) by February. Low temperatures range from -1°C (30.2°F) to -5°C (23°F). Rainfall takes a dip from 2mm (0.08") in December to 4mm (0.16") in February while the average daylight endures for approximately 19 hours per day, providing ample time for visitors to take in the scenic beauty of the Island.

Autumn weather in Snow Hill Island

The autumn months of March, April, and May on Snow Hill Island present a significant drop in temperature with highs ranging from 0°C (32°F) to -13°C (8.6°F). Low temperatures in these months dip from -5°C (23°F) to -19°C (-2.2°F). Rainfall experiences a spike to 10mm (0.39") and 12mm (0.47") in April and May respectively, with roughly 3 rainy days typical of these months.

Winter weather in Snow Hill Island

When winter sets in from June through August on Snow Hill Island, one can expect a harsh and frosty environment. The high temperatures in these months range from -12°C (10.4°F) to -14°C (6.8°F), and the lows drop further from -19°C (-2.2°F) to -21°C (-5.8°F). Precipitation is fairly low, recording 9mm (0.35") in the months of June and July, and 7mm (0.28") in August. Despite the formidable weather conditions, the serene snow-covered landscapes of winter invite a distinctive sense of tranquility and peace.

Weather in January

The first month of the year sees the continuation of summer's climate in Snow Hill Island, Antarctica. The mercury highlights its strength, with the recorded extremes being between 3°C (37.4°F) to -1°C (30.2°F). The day's length is generous, offering ample daylight for the Antarctic wildlife to thrive. Weather in January »

Weather in February

The transition to colder weather is apparent in February as the midsummer euphoria gradually ebbs away in Snow Hill Island. The recorded temperature drops from what was experienced in January, making it the first truly chilly month of the year. Weather in February »

Weather in March

March marks a significant transition in weather as the temperature dips from 0°C (32°F) to -11°C (12.2°F), making it considerably colder than February. The day's length shortens, causing a decline in sunshine hours. Rainfall is at an all-time high for the year, resulting in heavy snow. Weather in March »

Weather in April

The autumn season brings harsher weather conditions to Snow Hill Island, with a notable decrease in temperature as compared to March. The lowest observed temperature hits the -16°C (3.2°F) mark. Daylight hours are slashed by over a quarter and the sunshine hours drop to merely two a day, resulting in limited sun-based activities. Weather in April »

Weather in May

May registers the severest dip in temperature in Snow Hill Island, as we inch closer to winter. The month is characterised by the highest amount of rainfall, with a recorded high of 12mm (0.47"). Permanent darkness rules over May, with mere hours of daylight and virtually non-existent sunshine hours. Weather in May »

Weather in June

In June, Snow Hill Island is deeply entrenched in the Antarctic winter. The weather conditions harden but do not alter dramatically from May's winter cold. Rainfall decreases slightly, marking a fluctuation in the otherwise steady increase observed in the preceding months. Weather in June »

Weather in July

The coldest month in Snow Hill Island sees a marginal decrease in temperature from June, further intensifying the winter chill. July is known for its extreme lows, between -14°C (6.8°F) to -21°C (-5.8°F), making it the pinnacle of the Antarctic winter. Weather in July »

Weather in August

August ushers in spring, but not before one last sting of the extreme winter cold. The temperatures rise marginally from July, hinting at an end to the intense cold spell. The persistent chill continues with the sea remaining frozen, albeit with a slight upturn in temperature. Weather in August »

Weather in September

Weather in Snow Hill Island becomes notably softer in September. The temperature, although still well into the negatives, rises from August. This drop in temperature fluctuations signals the retreat of extreme winter. Snowfall reduces considerably, as rainfall reaches one of its lowest points of the year. Weather in September »

Weather in October

October heralds a warmer chapter in Snow Hill Island's weather book. The increase of temperature from September is appreciated, signifying the arrival of spring. Hourly sunshine shoots up to five, giving respite after months of gloom. Weather in October »

Weather in November

On approaching summer, November brings about a significant improvement in the weather at Snow Hill Island. The mercury acts more generously, marking an upswing from October. Brighter days crowd November, with the daylight and sunshine hours reaching their peak after a long winter. Weather in November »

Weather in December

The year comes full circle in Snow Hill Island with the onset of summer in December. A solstice-inspired warmth characterises this month, with temperatures standing between 3 and -2°C (28.4°F). Daylight reigns supreme, giving an average of 21.1 hours per day. Weather in December »

Frequently asked questions

What are the warmest months in Snow Hill Island?

Snow Hill Island experiences peak temperatures, averaging a high-temperature of 3°C (37.4°F) during January and December.

What is the driest month in Snow Hill Island?

January and December are months with the least rain when the rain falls for 1 days and typically aggregates up to 2mm (0.08") of rain.

How much does it rain in Snow Hill Island?

In Snow Hill Island, during the entire year, the rain falls for 21 days and collects up to 76mm (2.99") of precipitation.

What months are the sea warmest in Snow Hill Island?

January, February and December, with an average sea temperature of 0°C (32°F), are months with the warmest seawater.

When is Daylight Saving Time (DST) in Snow Hill Island?

On Sunday, 07. April 2024, at 03:00, Daylight Saving Time ends, and the time zone changes from NZDT to NZST. The next Daylight Saving Time starts on Sunday, 29. September 2024, at 02:00, and the time zone reverts from NZST to NZDT.

What is the month with the lowest UV index in Snow Hill Island?

April through August, with an average maximum UV index of 0, are months with the lowest UV index in Snow Hill Island.

What is the wettest month in Snow Hill Island?

May is the month with the most rainfall. Rain falls for 3 days and accumulates 12mm (0.47") of precipitation.

What is the month with the coldest sea water in Snow Hill Island?

May is the month with the coldest seawater in Snow Hill Island, Antarctica, with an average sea temperature of -2°C (28.4°F).

What is the month with the shortest days in Snow Hill Island?

June has the shortest days of the year, with an average of 4h and 12min of daylight.

What are the months with the least sunshine in Snow Hill Island?

The months with the least sunshine in Snow Hill Island, Antarctica, are June and July, with an average of 0h of sunshine.

What month is the coldest in Snow Hill Island?

July and August are identified as the coldest months in Snow Hill Island, with an average high-temperature of -14°C (6.8°F).

What are the months with the highest UV index in Snow Hill Island?

The months with the highest UV index in Snow Hill Island are November and December, with an average maximum UV index of 5.

When are the longest days in Snow Hill Island?

With an average of 21h and 6min of daylight, December has the longest days of the year in Snow Hill Island, Antarctica.

What month has the most sunshine in Snow Hill Island?

With an average of 10h of sunshine, December has the most sunshine of the year in Snow Hill Island, Antarctica.

Average temperature
Snow Hill Island, Antarctica

Average temperature - Snow Hill Island, Antarctica

The warmest months (with the highest average high temperature) are January and December (3°C).
The months with the lowest average high temperature are July and August (-14°C).

The month with the highest average low temperature is January (-1°C).
The coldest months (with the lowest average low temperature) are July and August (-21°C).

Average rainfall
Snow Hill Island, Antarctica

Average rainfall - Snow Hill Island, Antarctica

The wettest month (with the highest rainfall) is May (12mm).
The driest months (with the least rainfall) are January and December (2mm).

Average rainfall days
Snow Hill Island, Antarctica

Average rainfall days - Snow Hill Island, Antarctica

The months with the highest number of rainy days are March, April and May (3 days).
The months with the least rainy days are January, February, September, October, November and December (1 days).

Average sea temperature
Snow Hill Island, Antarctica

Average sea temperature - Snow Hill Island, Antarctica

The best months for swimming (with the highest average sea temperature) are January, February and December (0°C).
The coldest month (with the lowest average sea temperature) is May (-2°C).

Average daylight / Average sunshine
Snow Hill Island, Antarctica

Average daylight / Average sunshine - Snow Hill Island, Antarctica

The month with the longest days is December (Average daylight: 21h and 6min).
The month with the shortest days is June (Average daylight: 4h and 12min).

The month with the most sunshine is December (Average sunshine: 10h).
The months with the least sunshine are June and July (Average sunshine: 0h).

Average UV index
Snow Hill Island, Antarctica

Average UV index - Snow Hill Island, Antarctica

The months with the highest UV index are November and December (UV index 5).
The months with the lowest UV index are April, May, June, July and August (UV index 0).

Snow Hill Island, Antarctica

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