Porto Climate by Month
Porto, 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 Porto's climate in short. August is the warmest month, with highs around 77°F (25°C); January is the coolest at 57°F (14°C), and nights dip to 42°F (6°C). It gets 49 in (1240 mm) of rain a year, spread across the months.
- Warmest month
- 77°F(25°C)
- Average high, August
- Coldest nights
- 42°F(6°C)
- Average low, January
- Rain per year
- 49 in(1240 mm)
- No clear rainy season
- Humidity
- 76%
- Sunniest: July
Best and worst months in Porto
Best for weatherThe most comfortable weather comes from July to September, with highs around 76°F (25°C) and about 1.2 in (30 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; January is the coldest, with highs of only 57°F (14°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 July.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Porto weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 57°F(14°C) | 42°F(6°C) | 6.3 in(160 mm) | 82% | 1.8 |
| FebFebruary | 59°F(15°C) | 43°F(6°C) | 4.7 in(120 mm) | 78% | 2.7 |
| MarMarch | 63°F(17°C) | 46°F(8°C) | 6.1 in(154 mm) | 75% | 3.5 |
| AprApril | 65°F(19°C) | 49°F(10°C) | 4.5 in(114 mm) | 75% | 5.0 |
| MayMay | 69°F(21°C) | 54°F(12°C) | 3.0 in(76 mm) | 75% | 6.1 |
| JunJune | 74°F(23°C) | 58°F(14°C) | 1.7 in(42 mm) | 74% | 6.7 |
| JulJulyBest | 76°F(25°C) | 60°F(16°C) | 0.7 in(18 mm) | 72% | 6.8 |
| AugAugustBest | 77°F(25°C) | 60°F(16°C) | 0.8 in(20 mm) | 71% | 6.0 |
| SepSeptemberBest | 74°F(24°C) | 58°F(14°C) | 2.0 in(51 mm) | 73% | 4.6 |
| OctOctober | 69°F(21°C) | 54°F(12°C) | 6.4 in(162 mm) | 80% | 3.1 |
| NovNovember | 62°F(17°C) | 48°F(9°C) | 6.1 in(154 mm) | 81% | 2.0 |
| DecDecember | 58°F(15°C) | 45°F(7°C) | 6.7 in(169 mm) | 77% | 1.5 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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