Lisbon, Portugal Climate & Monthly Averages
The climate of Lisbon
Lisbon has a Mediterranean climate, marked by hot, dry summers and mild, wetter winters. Average daytime highs range from about 58°F (15°C) in January to around 83°F (28°C) in August, and the city records roughly 72 days of measurable precipitation a year.
Climate quick facts
- Hottest month: August - highs near 83°F (28°C)
- Coldest month: January - highs near 58°F (15°C)
- Record high: 107°F (42°C) · Record low: 35°F (2°C) (2015–2024)
- Wettest month: October (10 rainy days) · Sunniest: July (13.4 h sun/day)
- Climate type: Mediterranean - hot, dry summers and mild, wetter winters
Temperatures through the year
The warmest stretch of the year centers on August. Highs average 83°F (28°C) and overnight lows stay near 65°F (18°C). The coolest month is January, with typical highs of 58°F (15°C) and lows around 48°F (9°C). Based on 2015–2024 weather data, temperatures have reached as high as 107°F (42°C) and dropped as low as 35°F (2°C).
Rain, sun and snow
October is usually the wettest month. It brings about 3.1 inches (78 mm) of rain over 10 days, while August is the driest. July brings the most sunshine, averaging 13.4 hours of sun a day.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 58° | 48° | 8 | 2.2 in | 7.7 h/day | 81% |
| February | 61° | 49° | 6 | 1.9 in | 8.5 h/day | 78% |
| March | 63° | 51° | 9 | 2.3 in | 9.9 h/day | 75% |
| April | 67° | 54° | 9 | 2.4 in | 11.1 h/day | 75% |
| May | 73° | 58° | 4 | 1.5 in | 12.4 h/day | 70% |
| June | 77° | 62° | 4 | 0.6 in | 13.3 h/day | 71% |
| July | 82° | 65° | 1 | 0.1 in | 13.4 h/day | 68% |
| August | 83° | 65° | 1 | 0.1 in | 12.4 h/day | 68% |
| September | 79° | 64° | 4 | 1.2 in | 11.1 h/day | 71% |
| October | 73° | 60° | 10 | 3.1 in | 9.1 h/day | 76% |
| November | 65° | 54° | 10 | 2.9 in | 7.6 h/day | 81% |
| December | 61° | 51° | 7 | 3.0 in | 7.4 h/day | 83% |
Lisbon month by month
Lisbon weather in January
January brings highs around 58°F (15°C), lows near 48°F (9°C), about 8 wet days - typically the coldest month of the year in Lisbon.
Lisbon weather in February
February brings highs around 61°F (16°C), lows near 49°F (10°C), about 6 wet days.
Lisbon weather in March
March brings highs around 63°F (17°C), lows near 51°F (10°C), about 9 wet days.
Lisbon weather in April
April brings highs around 67°F (19°C), lows near 54°F (12°C), about 9 wet days.
Lisbon weather in May
May brings highs around 73°F (23°C), lows near 58°F (14°C), about 4 wet days.
Lisbon weather in June
June brings highs around 77°F (25°C), lows near 62°F (16°C), about 4 wet days.
Lisbon weather in July
July brings highs around 82°F (28°C), lows near 65°F (18°C), about 1 wet days - typically the sunniest month of the year in Lisbon.
Lisbon weather in August
August brings highs around 83°F (28°C), lows near 65°F (18°C), about 1 wet days - typically the hottest month and the driest month of the year in Lisbon.
Lisbon weather in September
September brings highs around 79°F (26°C), lows near 64°F (18°C), about 4 wet days.
Lisbon weather in October
October brings highs around 73°F (23°C), lows near 60°F (16°C), about 10 wet days - typically the wettest month of the year in Lisbon.
Lisbon weather in November
November brings highs around 65°F (18°C), lows near 54°F (12°C), about 10 wet days.
Lisbon weather in December
December brings highs around 61°F (16°C), lows near 51°F (10°C), about 7 wet days.
Seasons in Lisbon
Spring (March through May)
Spring in Lisbon stays on the cool side of mild, with daytime highs averaging 68°F (20°C) and nights around 54°F (12°C); expect showers on roughly 22 days across the season.
Summer (June through August)
Summer in Lisbon is mild and warm, with daytime highs averaging 80°F (27°C) and nights around 64°F (18°C); precipitation is infrequent.
Fall (September through November)
Fall in Lisbon is pleasantly warm, with daytime highs averaging 72°F (22°C) and nights around 59°F (15°C); expect showers on roughly 23 days across the season.
Winter (December through February)
Winter in Lisbon stays on the cool side of mild, with daytime highs averaging 60°F (15°C) and nights around 49°F (10°C); expect showers on roughly 21 days across the season.
Climate questions, answered
What is the average temperature in Lisbon?
Is Lisbon hot in summer?
Is Lisbon cold in winter?
How many rainy days does Lisbon get in a year?
Best time to visit Lisbon
The best time to visit Lisbon is generally May to September and February, when warm days, manageable rainfall and plenty of daylight line up. Daytime temperatures in that window typically sit near 76°F (24°C).
Pack for Lisbon with moisture-wicking fabrics to cope with the humidity. Evenings can feel noticeably cooler than afternoons - August nights average 65°F (18°C).
Lisbon temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ.