Castelo Branco Climate by Month
Castelo Branco, Portugal
Hot summers and cool winters, with rain spread through the year.
Castelo Branco has hot summers and cool winters, with rain spread through the year. Expect highs of 91°F (33°C) in August and 55°F (13°C) in January, with the coldest nights (January) near 40°F (5°C). It gets 32 in (810 mm) of rain a year, spread across the months. July and August are almost completely dry.
- Warmest month
- 91°F(33°C)
- Average high, August
- Coldest nights
- 40°F(5°C)
- Average low, January
- Rain per year
- 32 in(810 mm)
- No clear rainy season
- Humidity
- 62%
- Sunniest: July
Best and worst months in Castelo Branco
Best for weatherMay is the best time for weather in Castelo Branco: highs near 76°F (25°C) and about 2.0 in (51 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; December is the coldest, with highs of only 55°F (13°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 May.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Castelo Branco weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 55°F(13°C) | 40°F(5°C) | 3.5 in(89 mm) | 80% | 2.2 |
| FebFebruary | 59°F(15°C) | 41°F(5°C) | 2.3 in(58 mm) | 73% | 3.1 |
| MarMarch | 65°F(18°C) | 47°F(8°C) | 6.5 in(165 mm) | 66% | 4.0 |
| AprApril | 68°F(20°C) | 49°F(9°C) | 2.9 in(74 mm) | 66% | 5.2 |
| MayMayBest | 76°F(25°C) | 55°F(13°C) | 2.0 in(51 mm) | 56% | 6.7 |
| JunJune | 86°F(30°C) | 62°F(17°C) | 0.4 in(11 mm) | 45% | 7.8 |
| JulJuly | 91°F(33°C) | 65°F(18°C) | 0.1 in(2 mm) | 43% | 7.9 |
| AugAugust | 91°F(33°C) | 66°F(19°C) | 0.2 in(6 mm) | 42% | 6.9 |
| SepSeptember | 82°F(28°C) | 60°F(16°C) | 1.9 in(48 mm) | 50% | 5.0 |
| OctOctober | 72°F(22°C) | 54°F(12°C) | 3.8 in(96 mm) | 66% | 3.4 |
| NovNovember | 60°F(16°C) | 46°F(8°C) | 4.2 in(106 mm) | 73% | 2.2 |
| DecDecember | 55°F(13°C) | 41°F(5°C) | 4.1 in(104 mm) | 78% | 1.7 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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