Lisbon Monthly Climate
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Temperature Overview
- Average Daytime Temperature: 21°C (70°F)
- Average Nighttime Temperature: 14°C (57°F)
Rainfall Statistics
- Annual average daily rainfall: 2.0 mm (0.079 inches) per day
- Rainiest month: December with around 3.8 mm (0.150 inches) per day
- Driest month: July with around 0.1 mm (0.004 inches) per day
- Average number of rainy days per year: 108 days
Monthly Weather Conditions
Temperature
Precipitation
Seasonal Breakdown
December-February (Winter)
- Highs: 15-16°C (59-61°F)
- Lows: 8-9°C (46-48°F)
- Rainy Days: 10-12 days per month
- Average Precipitation: 3.3 mm/day
- Mild with occasional rainy periods
March-May (Spring)
- Highs: 19-22°C (66-72°F)
- Lows: 11-14°C (52-57°F)
- Rainy Days: 6-9 days per month
- Average Precipitation: 2.0 mm/day
- Pleasant temperatures with decreasing rainfall
June-August (Summer)
- Highs: 26-29°C (79-84°F)
- Lows: 17-19°C (63-66°F)
- Rainy Days: 1-3 days per month
- Average Precipitation: 0.3 mm/day
- Warm and dry with cooling sea breezes
September-November (Autumn)
- Highs: 19-27°C (66-81°F)
- Lows: 12-17°C (54-63°F)
- Rainy Days: 4-11 days per month
- Average Precipitation: 2.4 mm/day
- Mild temperatures with increasing rainfall
Best Time to Visit
The best time to visit Lisbon is during late spring (May to June) and early autumn (September to October) when temperatures are pleasant and crowds are smaller. However, each season offers unique experiences:
Winter (December-February) brings mild temperatures but increased rainfall. While this is low season, it's perfect for exploring the city's many museums, enjoying traditional Portuguese cuisine, and experiencing local life without tourist crowds. The famous New Year's celebrations are a highlight of the season.
Spring (March-May) offers comfortable temperatures and blooming jacaranda trees that paint the city purple. This is an excellent time for sightseeing, exploring the historic neighborhoods, and enjoying outdoor cafes. The Santo António festivals in June mark the beginning of summer celebrations.
Summer (June-August) is warm and dry with reliable sunshine. While this is peak tourist season, the cooling Atlantic breezes make it comfortable for outdoor activities. The city comes alive with outdoor festivals, beach activities, and evening entertainment. The historic trams and funiculars offer breezy ways to explore the hills.
Autumn (September-November) brings pleasant temperatures and fewer tourists. Early autumn maintains summer-like conditions perfect for outdoor activities, while late autumn sees more rainfall but remains mild. This is an ideal time for cultural events, wine tasting, and exploring the city's vibrant food scene.
Before you go ahead and plan your next visit, make sure to check the weather forecast for your exact travel dates on WhereWeather Website. You can also compare different cities and dates side-by-side.