Overview
Lisbon is in Portugal. The figures below are long-term monthly averages (2010-2023), not a forecast.
- Warmest month: August, with daytime highs around 28°C.
- Coolest month: January, with daytime highs around 14°C.
- Driest month: July, about 2 mm of rain.
- Wettest month: November, about 89 mm of rain.
- Sunniest month: June, about 13.5 hr of sunshine per day.
- Warmest sea: August, around 21°C.
Climate by month
| Month | Day high | Night low | Sea | Rain (mm) | Rainy days | Sun (h/day) | Humidity | Wind (km/h) |
|---|---|---|---|---|---|---|---|---|
| January | 14°C | 9°C | 14°C | 54 mm | 9 | 7.6 | 81% | 15 km/h |
| February | 15°C | 9°C | 14°C | 58 mm | 8 | 8.5 | 78% | 16 km/h |
| March | 17°C | 10°C | 14°C | 64 mm | 9 | 9.9 | 76% | 15 km/h |
| April | 19°C | 12°C | 16°C | 59 mm | 9 | 11.2 | 75% | 15 km/h |
| May | 22°C | 15°C | 18°C | 40 mm | 5 | 12.5 | 71% | 16 km/h |
| June | 24°C | 17°C | 20°C | 12 mm | 3 | 13.5 | 71% | 16 km/h |
| July | 27°C | 18°C | 21°C | 2 mm | 1 | 13.5 | 69% | 17 km/h |
| August | 28°C | 19°C | 21°C | 2 mm | 1 | 12.5 | 68% | 16 km/h |
| September | 26°C | 18°C | 21°C | 36 mm | 4 | 11.1 | 72% | 14 km/h |
| October | 23°C | 16°C | 19°C | 77 mm | 9 | 9.1 | 76% | 13 km/h |
| November | 17°C | 12°C | 17°C | 89 mm | 11 | 7.5 | 81% | 15 km/h |
| December | 15°C | 10°C | 15°C | 80 mm | 8 | 7.3 | 83% | 14 km/h |
Similar destinations
Data and sources
- Air climate: Open-Meteo Historical Weather API (ERA5 / ERA5-Land reanalysis), 2010-2023. CC BY 4.0 (Open-Meteo); underlying ERA5 data: Copernicus licence
- Sea temperature: NOAA Coral Reef Watch CoralTemp v3.1 monthly SST (5 km), 2014-2023.
- Last updated October 8, 2026.