Lisbon, Portugal - Detailed climate information and monthly weather forecast

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

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.

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.

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.

The winter's cold is worst in January. Temperatures remain at 11.7°C (53.1°F). Much of December's rain is gone, and now is the time to go out. Weather in January »

A tourist's itinerary should preferably involve indoor activities. Nonetheless, average temperatures begin to rise, averaging 12.2°C (54°F). Weather in February »

The skies tend to be overcast most of the time, but there's only a 17% chance of rain in March. This month is excellent for exploring the city's renowned tourist attraction sites. Weather in March »

Mean temperature of 15.6°C (60.1°F) makes April a fabulous month to visit Lisbon. The ocean waters are great for surfing with temperatures of 15°C (59°F). Weather in April »

Lisbon is fairly warm in May, with an average temperature of 18.3°C (64.9°F). The Bars, along with Tagus River, host numerous wine lovers at this time of year. Weather in May »

Lisbon comes to life with carnivals and celebrations in June. The skies are mostly sunny, with very little chance of rain. Weather in June »

Lisbon is in the middle of summer in July. The average temperature is 22.8°C (73°F). There's hardly any rain, and ocean water temperature is 18.3°C (64.9°F). Weather in July »

Almost anything done in Lisbon during August will be pleasurable. Visitors can enjoy sunbathing from a sun lounger or spend time enjoying a breath-taking panoramic view of the sunset. Weather in August »

The mean September temperature is 22.2°C (72°F), the sea water's 18.9°C (66°F), and the sky is primarily clear. The days are long and warm. Weather in September »

The weather is nice for tours and exploration - temperatures stand at a mean of 18.9°C (66°F), and the average chance of rain is 23%. Weather in October »

November is the wettest month in Lisbon; however, clouds are common in most days, and there's a decent chance of rain. Mean temperatures in November in Lisbon are 14.4°C (57.9°F). Weather in November »

Winter in Lisbon kicks in December; temperatures drop to 12.2°C (54°F), and most days are overcast and rainy. Weather in December »

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What is the coldest month in Lisbon?

Enero is the coldest month, 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?

Throughout the year, there are 112 rainfall days, and 774mm (30.47") of precipitation is accumulated.

What is the month with the least sunshine in Lisbon?

Enero, Febrero, Noviembre and Diciembre, with an average of 5h of sunshine, are months with the least sunshine.

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

Months with the lowest UV index in Lisbon are Enero and Diciembre, with an average maximum UV index of 2.

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

The month with the coldest seawater in Lisbon is Marzo, with an average sea temperature of 15.1°C (59.2°F).

When are the longest days in Lisbon?

With an average of 14.8h of daylight, Junio has the longest days of the year in Lisbon, Portugal.

When is the highest UV index in Lisbon?

Months with the highest UV index in Lisbon are Junio and Julio, with an average maximum UV index of 9.

What is the driest month in Lisbon?

Julio is the month with the least rainfall in Lisbon, Portugal. Rain falls for 2 days and accumulates 4.2mm (0.17") of precipitation.

What are the months with the most sunshine in Lisbon?

Julio and Agosto, with an average of 11h of sunshine, are months with the most sunshine.

What is the warmest month in Lisbon?

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

When is the sea warmest in Lisbon?

The month with the warmest seawater in Lisbon, Portugal, is Septiembre, with an average sea temperature of 19.9°C (67.8°F).

What is the wettest month in Lisbon?

The month with the most rainfall is Noviembre when the rain falls for 13 days and typically aggregates up to 127.6mm (5.02") of precipitation.

What is the month with the shortest days in Lisbon?

Diciembre has the shortest days of the year in Lisbon, with an average of 9.5h of daylight.

Today

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Long-term

Climate J F M A M J J A S O N D Year

Average high temperature in January:
14.8°C
Average high temperature in February:
16.2°C
Average high temperature in March:
18.8°C
Average high temperature in April:
19.8°C
Average high temperature in May:
22.1°C
Average high temperature in June:
25.7°C

Average high temperature in July:
28.2°C
Average high temperature in August:
28.3°C
Average high temperature in September:
26.5°C
Average high temperature in October:
22.5°C
Average high temperature in November:
18.2°C
Average high temperature in December:
15.3°C

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).

Average low temperature in January:
8.3°C
Average low temperature in February:
9.1°C
Average low temperature in March:
11°C
Average low temperature in April:
11.9°C
Average low temperature in May:
13.9°C
Average low temperature in June:
16.6°C

Average low temperature in July:
18.2°C
Average low temperature in August:
18.6°C
Average low temperature in September:
17.6°C
Average low temperature in October:
15.1°C
Average low temperature in November:
11.8°C
Average low temperature in December:
9.4°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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The wettest month (with the highest rainfall) is November (127.6mm).
The driest month (with the lowest rainfall) is July (4.2mm).

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Average rainfall days - Lisbon, Portugal

Average rainfall days in January:
14 days
Average rainfall days in February:
14 days
Average rainfall days in March:
13 days
Average rainfall days in April:
11 days
Average rainfall days in May:
8 days
Average rainfall days in June:
5 days

Average rainfall days in July:
2 days
Average rainfall days in August:
2 days
Average rainfall days in September:
6 days
Average rainfall days in October:
10 days
Average rainfall days in November:
13 days
Average rainfall days in December:
14 days

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

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Average sea temperature - Lisbon, Portugal

Average sea temperature in January:
15.8°C
Average sea temperature in February:
15.3°C
Average sea temperature in March:
15.1°C
Average sea temperature in April:
16.3°C
Average sea temperature in May:
17.4°C
Average sea temperature in June:
18.6°C

Average sea temperature in July:
18.9°C
Average sea temperature in August:
19.6°C
Average sea temperature in September:
19.9°C
Average sea temperature in October:
19.8°C
Average sea temperature in November:
18.1°C
Average sea temperature in December:
16.6°C

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

The month with the longest days is June (Average daylight: 14.8h).
The month with shortest days is December (Average daylight: 9.5h).

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

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Months with the highest UV index are June and July (UV index 9).
Months with the lowest UV index are January and December (UV index 2).

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Monthly weather forecast and climate
Lisbon, Portugal

Contents

The climate of Lisbon

The best time to visit Lisbon

The worst time to visit Lisbon

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