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Contents
- The climate of Portimão
- The best time to visit Portimão
- The worst time to visit Portimão
- Spring weather in Portimão
- Summer weather in Portimão
- Autumn weather in Portimão
- Winter weather in Portimão
- 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 sea temperature
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Portimão
Characterized by a Csa predominate climate as per the Köppen climate classification, Portimão, Portugal offers a Mediterranean weather atmosphere with hot summers. Geographically located along Portugal's Algarve coast, the city experiences significant climatological shifts from one season to another.
An inspection of the gathered climate parameters depicts a distinct weather pattern, with day-lengths spanning from 9.7 hours during the depths of winter to a peak of 14.7 hours in the heart of summer. Correspondingly, solar radiance varies, with six sunshine hours in winter increasing to 11.8 hours in the height of summer. Furthermore, the pressure remains relatively stable, ranging between 1015.6mb and 1022.5mb throughout the year.
Precipitation patterns in Portimão suggest a wetter season from November through to March, with rainfall reaching up to 20mm (0.79") in November, whereas the driest months are from June to August, witnessing a drop in precipitation to a mere 1mm (0.04"). Notably, a rapid decrease in cloud cover from 30% in April to 7% by July signifies the transitional shift towards the drier summer months.
The UV index experiences its zenith from June to September, reaching a level of 6, before reverting back to a level of 4 during winter. The city also retains incredible visibility throughout the year, maintaining a constant 10km (6.2mi), unaffected by the shifting seasons.
An inspection of the gathered climate parameters depicts a distinct weather pattern, with day-lengths spanning from 9.7 hours during the depths of winter to a peak of 14.7 hours in the heart of summer. Correspondingly, solar radiance varies, with six sunshine hours in winter increasing to 11.8 hours in the height of summer. Furthermore, the pressure remains relatively stable, ranging between 1015.6mb and 1022.5mb throughout the year.
Precipitation patterns in Portimão suggest a wetter season from November through to March, with rainfall reaching up to 20mm (0.79") in November, whereas the driest months are from June to August, witnessing a drop in precipitation to a mere 1mm (0.04"). Notably, a rapid decrease in cloud cover from 30% in April to 7% by July signifies the transitional shift towards the drier summer months.
The UV index experiences its zenith from June to September, reaching a level of 6, before reverting back to a level of 4 during winter. The city also retains incredible visibility throughout the year, maintaining a constant 10km (6.2mi), unaffected by the shifting seasons.
The best time to visit Portimão
Given the favorable weather conditions, the period between June and September proves to be a desirable time to visit Portimão. During these months, visitors can relish in extended daylight, peaking at 14.7 hours in June, coupled with an abundant amount of sunshine, boasting up to 11.8 hours in July. The Mediterranean climate ensures high temperatures ranging from 23.3°C (73.9°F) in June to 26.4°C (79.5°F) in August, complemented by a warm sea temperature that can reach a pleasurable 21.2°C (70.2°F).
The worst time to visit Portimão
In contrast, the period extending from November to February can be deemed as less conducive for tourism. The colder weather, reduced daylight and escalating precipitation levels could pose a deterrent for travelers. Specifically, November witnesses high rainfall reaching up to 20mm (0.79") coupled with fewer sunshine hours, dropping to a mere 6.4 hours.
Spring weather in Portimão
The rejuvenating spring months from March to May present a blooming city with gradual weather progress. Starting with average maximum temperatures of 16.4°C (61.5°F) in March, it escalates to a welcoming 20.8°C (69.4°F) by May. Rainfall sees a significant reduction from 16mm (0.63") in March to 8mm (0.31") come May.
Summer weather in Portimão
Summer in Portimão, spanning from June to August, invites residents and tourists alike with a warm embrace. Daylight reaches its annual height, ensuring a sun-drenched atmosphere with temperatures peaking at 26.4°C (79.5°F) in August. Rainfall takes a backseat, with a mere 1mm (0.04") witnessed during the dry summer months of June through August.
Autumn weather in Portimão
Autumn in Portimão, scheduled from September to November, ushers in milder temperatures, dipping from 24.5°C (76.1°F) in September to 18°C (64.4°F) by November, alongside a gradually increasing cloud cover and precipitation levels escalating from 3mm (0.12") to 20mm (0.79").
Winter weather in Portimão
Winter months from December to February bring in chillier wave, with temperatures floating around 16.5°C (61.7°F) in December dropping to 15.2°C (59.4°F) by February. The sunshine hours also decrease to 6 hours, while precipitation fluctuates, peaking at 16mm (0.63") in December.
Weather in January
January, the frostiest month in Portimão, Portugal, is infused with a notable surge in humidity levels, reaching up to 75%. As Portimão eases into the year, temperatures tend to be fairly steady, with minor fluctuating distinctions from month to month. Weather in January »
Weather in February
February presents a slight improvement in weather conditions. Compared to January, temperatures see a minimal rise and humidity dips slightly. However, Portimão generally experiences consistent climatological parameters, with minimal shifts from month to month. Weather in February »
Weather in March
March, right at the pivot of the transitioning season in Portimão, attests to a pleasant elevation in normal temperatures from 15.3°C (59.5°F) to 16.4°C (61.5°F). It carries the warmth of the coming spring season despite experiencing higher rainfall at 16mm (0.63") from the preceding month's 10mm (0.39"). Weather in March »
Weather in April
April illuminates the heart of spring in Portugal. The month experiences an appreciable hike in daylight hours, fostering a spirited atmosphere ideal for outdoor excursions in Portimão. Differentiating itself from its predecessor, the month witnesses a fall in rainfall. Weather in April »
Weather in May
May streamlines the weather towards the oncoming summer. Days are longer, bathed in the sunlight for a longer duration. Portimão, soaked in the brilliance of the sun with 11.1 hours of sunshine, readies itself for the ensuing summer revel. Weather in May »
Weather in June
June in Portugal is characterized by a rapid surge in temperatures, nudging the mercury up to 23.3°C (73.9°F). This, heralding the onset of summer, marks a shift from the relatively moderate climate witnessed so far. As Portimão warms up to summer, the number of rainy days hits an all-year low at 2.6 days. Weather in June »
Weather in July
July encapsulates the epitome of summer, sweeping the entire city of Portimão under its hot, blazing spell. Embracing the city's warmest temperatures at 25.5°C (77.9°F), tourists and residents gear up to enjoy the sun-soaked beaches. Weather in July »
Weather in August
August sustains the full bloom of summer with its warmest temperatures touching 26.4°C (79.5°F). Marking the zenith of Portimão's weather, this period witnesses plentiful sunshine, cloudless skies, and minimal rainfall. As the sea temperature continues to rise to 20.8°C (69.4°F) and the pressure remains steady, one can anticipate ideal weather conditions for water activities. Weather in August »
Weather in September
Come September, the slightly lowering mercury readings of 24.5°C (76.1°F) denote a subtle nod towards autumn. Despite the gentle drop in temperature, Portimão's weather remains vibrant and pleasant, reminiscent of summer warmth. Weather in September »
Weather in October
October witnesses the rhythm of weather shifting gradually towards cooler and more damp conditions. Rainfall doubles from 3mm (0.12") to 13mm (0.51") as compared to the preceding month. However, Portimão continues to exhibit a warm demeanor, highlighted by the comforting sea temperature and adequate sunshine hours. Weather in October »
Weather in November
November acknowledges the impending arrival of winter with further decreases in temperature, falling to 18°C (64.4°F) from the preceding month's 22.2°C (72°F). Despite the gradual lowering of temperatures, Portimão's November days still manage to carry glimpses of the receding warmth. Weather in November »
Weather in December
December carries the mantle of winter, ending the calendar year in Portimão with the mercury dipping to an annual low of 16.5°C (61.7°F). The colder weather resonates with holiday-inspired activities and sparks the season of winter festivities. Weather in December »
Updated: Feb 2, 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 coldest time of year in Portimão?
January, noted for its average high-temperature of 15.2°C (59.4°F) and an average low-temperature of 11.3°C (52.3°F), is considered the coldest month in Portimão, Portugal.
How much does it rain in Portimão?
In Portimão, during the entire year, the rain falls for 73.8 days and collects up to 116mm (4.57") of precipitation.
What is the month with the least sunshine in Portimão?
The month with the least sunshine in Portimão, Portugal, is January, with an average of 6h of sunshine.
What is the month with the lowest UV index in Portimão?
January through March, November and December, with an average maximum UV index of 4, are months with the lowest UV index in Portimão, Portugal.
What is the month with the coldest sea water in Portimão?
March is the month with the coldest seawater, with an average sea temperature of 16°C (60.8°F).
What is the most humid month in Portimão?
April is the most humid month in Portimão, with an average relative humidity of 76%.
When are the longest days in Portimão?
The month with the longest days in Portimão, Portugal, is June, with an average of 14h and 42min of daylight.
What is the month with the highest UV index in Portimão?
June through September, with an average maximum UV index of 6, are months with the highest UV index.
What is the driest month in Portimão?
The months with the least rainfall in Portimão are July and August Rain falls for 1.3 days and accumulates 1mm (0.04") of rain.
What month has the most sunshine in Portimão?
With an average of 11.8h of sunshine, July has the most sunshine of the year.
What part of the year is the hottest in Portimão?
August, having an average high-temperature of 26.4°C (79.5°F) and an average low-temperature of 19.4°C (66.9°F), is the warmest month.
What is the least humid month in Portimão?
With an average relative humidity of 68%, August is the least humid month.
When is the sea warmest in Portimão?
The month with the warmest seawater is September, with an average sea temperature of 21.2°C (70.2°F).
When is Daylight Saving Time (DST) in Portimão?
On Sunday, 27. October 2024, at 02:00, Daylight Saving Time ends in Portimão, and the time zone changes from WEST to WET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 01:00, and the time zone reverts from WET to WEST.
What is the rainiest month in Portimão?
November is the month with the most rainfall in Portimão. Rain falls for 10.3 days and accumulates 20mm (0.79") of precipitation.
What is the month with the shortest days in Portimão?
With an average of 9h and 42min of daylight, December has the shortest days of the year.
Average temperature
Portimão, Portugal
The warmest month (with the highest average high temperature) is August (26.4°C).
The month with the lowest average high temperature is January (15.2°C).
The month with the highest average low temperature is August (19.4°C).
The coldest month (with the lowest average low temperature) is February (11°C).
Average pressure
Portimão, Portugal
- Average pressure in January:
1022.4mbar - Average pressure in February:
1020.3mbar - Average pressure in March:
1017.7mbar - Average pressure in April:
1015.6mbar - Average pressure in May:
1016.1mbar - Average pressure in June:
1016.8mbar
- Average pressure in July:
1016.3mbar - Average pressure in August:
1016.1mbar - Average pressure in September:
1016.7mbar - Average pressure in October:
1016.2mbar - Average pressure in November:
1017.5mbar - Average pressure in December:
1022.5mbar
The month with the highest atmospheric pressure is December (1022.5mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed
Portimão, Portugal
- Average wind speed in January:
17.7km/h - Average wind speed in February:
18.7km/h - Average wind speed in March:
18.6km/h - Average wind speed in April:
17.2km/h - Average wind speed in May:
16.2km/h - Average wind speed in June:
16.2km/h
- Average wind speed in July:
16.9km/h - Average wind speed in August:
15.3km/h - Average wind speed in September:
13.3km/h - Average wind speed in October:
14.4km/h - Average wind speed in November:
17.1km/h - Average wind speed in December:
17.2km/h
The windiest month (with the highest average wind speed) is February (18.7km/h).
The calmest month (with the lowest average wind speed) is September (13.3km/h).
Average humidity
Portimão, Portugal
The month with the highest relative humidity is April (76%).
The month with the lowest relative humidity is August (68%).
Average rainfall
Portimão, Portugal
The wettest month (with the highest rainfall) is November (20mm).
The driest months (with the least rainfall) are July and August (1mm).
Average rainfall days
Portimão, Portugal
- Average rainfall days in January:
7.7 days - Average rainfall days in February:
6.8 days - Average rainfall days in March:
10.5 days - Average rainfall days in April:
9.3 days - Average rainfall days in May:
5.6 days - Average rainfall days in June:
2.6 days
- Average rainfall days in July:
1.3 days - Average rainfall days in August:
1 days - Average rainfall days in September:
3.1 days - Average rainfall days in October:
8 days - Average rainfall days in November:
10.3 days - Average rainfall days in December:
7.6 days
The month with the highest number of rainy days is March (10.5 days).
The month with the least rainy days is August (1 days).
Average sea temperature
Portimão, Portugal
The best month for swimming (with the highest average sea temperature) is September (21.2°C).
The coldest month (with the lowest average sea temperature) is March (16°C).
Average daylight / Average sunshine
Portimão, Portugal
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 1min - Average daylight in June:
14h and 4min
- Average daylight in July:
14h and 2min - Average daylight in August:
13h and 3min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in January:
6h and 0min - Average sunshine in February:
8h and 0min - Average sunshine in March:
8h and 2min - Average sunshine in April:
9h and 1min - Average sunshine in May:
11h and 1min - Average sunshine in June:
11h and 3min
- Average sunshine in July:
11h and 5min - Average sunshine in August:
11h and 3min - Average sunshine in September:
9h and 4min - Average sunshine in October:
7h and 4min - Average sunshine in November:
6h and 2min - Average sunshine in December:
6h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).
Average sunshine days
Portimão, Portugal
- Average sunshine days in January:
19.8 days - Average sunshine days in February:
19.3 days - Average sunshine days in March:
18.9 days - Average sunshine days in April:
18.3 days - Average sunshine days in May:
24.1 days - Average sunshine days in June:
25.8 days
- Average sunshine days in July:
29.5 days - Average sunshine days in August:
29.3 days - Average sunshine days in September:
25.5 days - Average sunshine days in October:
21.5 days - Average sunshine days in November:
17.4 days - Average sunshine days in December:
20.7 days
The month with the most sunshine days is July (29.5 days).
The month with the least sunshine days is November (17.4 days).
Average UV index
Portimão, Portugal
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover
Portimão, Portugal
The month with the most cloud cover is January (Cloud cover 33).
The months with the least cloud cover are July and August (Cloud cover 7).
Average visibility
Portimão, Portugal
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Portimão, Portugal
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