Climate and monthly weather forecast
Lisbon, Portugal

The beautiful hillside city of Lisbon in Portugal, with a high, far view of the Sao Jorge Castle
The beautiful hillside city of Lisbon in Portugal, with a high, far view of the Sao Jorge Castle

The climate of Lisbon

The Portuguese capital has a subtropical-Mediterranean climate; with over 290 days of sunshine in a year, Lisbon is one of the best all-year-round cities to visit.

The summers in Lisbon are warm and sunny. Winters are short, rainy, and mild. Summer temperatures in Lisbon are quite tolerable. The warmest month is July, with mean temperatures of 24°C (75.2°F). Winter temperatures in Lisbon almost never go below freezing. January is, on average, the coldest month with a mean temperature of 11°C (51.8°F).

The gulf stream largely influences the climate in this metropolitan city. Hence rain predominantly falls during the winter months. Most precipitation falls in November and December, with December being the wettest month. Lisbon is mostly dry in June, July, and August. July, on average, is the driest month.

The best time to visit Lisbon

Portugal's climate is generally mild, resulting in the fact that practically any time is a pleasant time to visit Lisbon. Nonetheless, the best times to visit are May, June, July, August, and September. Those months have excellent weather.
Although those are summer months, the temperature is not extraordinarily high. Moreover, cool breezes blow from the ocean and ease the heat creating a pleasant temperature. The skies are clear, and there are a lot of fun activities, carnivals, and festivals happening around this time. The weather allows for the exploration of Lisbon in its entirety. It is thus a great time to sample every bit of fun that the city has to offer. The ocean water during these months is excellent for swimming and other water-related fun activities.

The worst time to visit Lisbon

Though there isn't the worst time to visit Lisbon, the winter months of December, January, and February are not ideal, as they are chilly and often rainy. The upside to visiting Lisbon during winter is the price of accommodation. They are substantially lower, as hotels are striving to attract tourists with special deals.

Weather in January

January, like December, is a moderate winter month in Lisbon, Portugal, with temperature in the range of an average low of 8.3°C (46.9°F) and an average high of 14.8°C (58.6°F). The coldest month is January, with an average high-temperature of 14.8°C (58.6°F) and an average low-temperature of 8.3°C (46.9°F). Weather in January »

Weather in February

February, the last month of the winter in Lisbon, is an enjoyable month, with an average temperature fluctuating between 9.1°C (48.4°F) and 16.2°C (61.2°F). In Lisbon, the average high-temperature in February is practically the same as in January - a comfortable 16.2°C (61.2°F). Weather in February »

Weather in March

March, the first month of the spring in Lisbon, is also an enjoyable month, with an average temperature varying between 18.8°C (65.8°F) and 11°C (51.8°F). In Lisbon, Portugal, the average high-temperature in March is almost the same as in February - a still enjoyable 18.8°C (65.8°F). Weather in March »

Weather in April

April, like March, in Lisbon, Portugal, is another comfortable spring month, with an average temperature ranging between min 11.9°C (53.4°F) and max 19.8°C (67.6°F). In Lisbon, Portugal, the average high-temperature in April is almost the same as in March - a still comfortable 19.8°C (67.6°F). Weather in April »

Weather in May

May, the last month of the spring in Lisbon, is an agreeable month, with an average temperature varying between 13.9°C (57°F) and 22.1°C (71.8°F). In May, the average high-temperature is practically the same as in April - a pleasant 22.1°C (71.8°F). Weather in May »

Weather in June

June, the first month of the summer in Lisbon, is a warm month, with temperature in the range of an average high of 25.7°C (78.3°F) and an average low of 16.6°C (61.9°F). In Lisbon, the average high-temperature in June slightly increases from a pleasant 22.1°C (71.8°F) in May to a warm 25.7°C (78.3°F). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Lisbon, Portugal, with an average temperature ranging between min 18.2°C (64.8°F) and max 28.2°C (82.8°F). In Lisbon, the average high-temperature in July is relatively the same as in June - a still warm 28.2°C (82.8°F). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Lisbon, Portugal, with temperature in the range of an average low of 18.6°C (65.5°F) and an average high of 28.3°C (82.9°F). August is the warmest month, with an average high-temperature of 28.3°C (82.9°F) and an average low-temperature of 18.6°C (65.5°F). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Lisbon, Portugal, with an average temperature fluctuating between 26.5°C (79.7°F) and 17.6°C (63.7°F). In September, the average high-temperature is relatively the same as in August - a still warm 26.5°C (79.7°F). Weather in September »

Weather in October

October, like September, is an agreeable autumn month in Lisbon, Portugal, with temperature in the range of an average low of 15.1°C (59.2°F) and an average high of 22.5°C (72.5°F). In Lisbon, Portugal, the average high-temperature in October slightly decreases from a warm 26.5°C (79.7°F) in September to a pleasant 22.5°C (72.5°F). Weather in October »

Weather in November

November, the last month of the autumn in Lisbon, is also an enjoyable month, with temperature in the range of an average low of 11.8°C (53.2°F) and an average high of 18.2°C (64.8°F). In Lisbon, the average high-temperature in November marginally drops from a pleasant 22.5°C (72.5°F) in October to an enjoyable 18.2°C (64.8°F). Weather in November »

Weather in December

The first month of the winter, December, is still a mild month in Lisbon, Portugal, with an average temperature varying between 15.3°C (59.5°F) and 9.4°C (48.9°F). In December, the average high-temperature is practically the same as in November - a moderate 15.3°C (59.5°F). Weather in December »
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FAQ

What is the coldest month in Lisbon?

The coldest month is January, with an average high-temperature of 14.8°C (58.6°F) and an average low-temperature of 8.3°C (46.9°F).

How many days does it rain in Lisbon?

In Lisbon, Portugal, during the entire year, the rain falls for 112 days and collects up to 774mm (30.47") of precipitation.

What is the month with the least sunshine in Lisbon?

January, February, November and December, with an average of 5h of sunshine, are months with the least sunshine.

What are the months with the lowest UV index in Lisbon?

The months with the lowest UV index are January and December, with an average maximum UV index of 2.

What is the month with the coldest sea water in Lisbon?

With an average sea temperature of 15.1°C (59.2°F), March is the month with the coldest seawater.

When is Daylight Saving Time (DST) in Lisbon?

On Sunday, 26. March 2023, at 01:00, Daylight Saving Time starts in Lisbon, and the time zone changes from WET to WEST. Daylight Saving Time ends on Sunday, 29. October 2023, at 02:00, and the time zone reverts from WEST to WET.

When are the longest days in Lisbon?

The month with the longest days in Lisbon is June, with an average of 14h and 50min of daylight.

What is the month with the highest UV index in Lisbon?

The months with the highest UV index in Lisbon, Portugal, are June and July, with an average maximum UV index of 9.

What is the driest month in Lisbon?

The month with the least rainfall is July, when the rain falls for 2 days and typically collects 4mm (0.16") of precipitation.

What are the months with the most sunshine in Lisbon?

July and August, with an average of 11h of sunshine, are months with the most sunshine.

What is the warmest month in Lisbon?

The warmest month in Lisbon, Portugal, is August, with an average high-temperature of 28.3°C (82.9°F) and an average low-temperature of 18.6°C (65.5°F).

What month is the sea warmest in Lisbon?

With an average sea temperature of 19.9°C (67.8°F), September is the month with the warmest seawater.

What is the rainiest month in Lisbon?

The month with the most rainfall is November, when the rain falls for 13 days and typically aggregates up to 128mm (5.04") of precipitation.

What is the month with the shortest days in Lisbon?

With an average of 9h and 31min of daylight, December has the shortest days of the year.

Average temperature
Lisbon, Portugal

Average temperature - Lisbon, Portugal

The warmest month (with the highest average high temperature) is August (28.3°C).
The month with the lowest average high temperature is January (14.8°C).

The month with the highest average low temperature is August (18.6°C).
The coldest month (with the lowest average low temperature) is January (8.3°C).

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Average rainfall
Lisbon, Portugal

Average rainfall - Lisbon, Portugal

The wettest month (with the highest rainfall) is November (127.6mm).
The driest month (with the least rainfall) is July (4.2mm).

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Average rainfall days
Lisbon, Portugal

Average rainfall days - Lisbon, Portugal

The months with the highest number of rainy days are January, February and December (14 days).
The months with the least rainy days are July and August (2 days).

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Average sea temperature
Lisbon, Portugal

Average sea temperature - Lisbon, Portugal

The best month for swimming (with the highest average sea temperature) is September (19.9°C).
The coldest month (with the lowest average sea temperature) is March (15.1°C).

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Average daylight / Average sunshine
Lisbon, Portugal

Average daylight / Average sunshine - Lisbon, Portugal

The month with the longest days is June (Average daylight: 14h and 50min).
The month with the shortest days is December (Average daylight: 9h and 31min).

The months with the most sunshine are July and August (Average sunshine: 11h).
The months with the least sunshine are January, February, November and December (Average sunshine: 5h).

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