Lisbon Climate by Month
Lisbon, Portugal
Warm summers and mild winters, with rain spread through the year.
Warm summers and mild winters, with rain spread through the year: that's Lisbon's climate in short. August is the warmest month, with highs around 83°F (28°C); January is the coolest at 58°F (15°C), and nights dip to 47°F (8°C). About 27 in (680 mm) of rain falls in a typical year, with no clear rainy season. July and August are almost completely dry.
- Warmest month
- 83°F(28°C)
- Average high, August
- Coldest nights
- 47°F(8°C)
- Average low, January
- Rain per year
- 27 in(680 mm)
- No clear rainy season
- Humidity
- 72%
- Sunniest: July
Best and worst months in Lisbon
Best for weatherMay, June and September are the best time for weather in Lisbon: highs near 77°F (25°C) and about 1.3 in (34 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; December is the coldest, with highs of only 60°F (15°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in June.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Lisbon weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 58°F(15°C) | 47°F(8°C) | 3.1 in(80 mm) | 82% | 2.1 |
| FebFebruary | 61°F(16°C) | 48°F(9°C) | 2.5 in(64 mm) | 76% | 3.0 |
| MarMarch | 66°F(19°C) | 51°F(11°C) | 2.2 in(56 mm) | 72% | 4.1 |
| AprApril | 68°F(20°C) | 53°F(12°C) | 2.4 in(62 mm) | 72% | 5.4 |
| MayMayBest | 73°F(23°C) | 57°F(14°C) | 2.0 in(52 mm) | 66% | 6.6 |
| JunJuneBest | 78°F(26°C) | 61°F(16°C) | 0.6 in(14 mm) | 68% | 7.1 |
| JulJuly | 82°F(28°C) | 64°F(18°C) | 0.2 in(4 mm) | 65% | 7.3 |
| AugAugust | 83°F(28°C) | 65°F(18°C) | 0.2 in(6 mm) | 63% | 6.5 |
| SepSeptemberBest | 79°F(26°C) | 62°F(17°C) | 1.4 in(35 mm) | 66% | 5.0 |
| OctOctober | 73°F(23°C) | 59°F(15°C) | 3.5 in(88 mm) | 74% | 3.5 |
| NovNovember | 64°F(18°C) | 53°F(11°C) | 4.4 in(113 mm) | 78% | 2.3 |
| DecDecember | 60°F(15°C) | 49°F(9°C) | 4.2 in(106 mm) | 84% | 1.9 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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