Aosta Climate by Month
Aosta, Aosta Valley, Italy
Warm summers and cold winters, with rain spread through the year.
Aosta has warm summers and cold winters, with rain spread through the year. July is the warmest month, with highs around 78°F (26°C); January is the coolest at 40°F (5°C), and nights dip to 25°F (-4°C). About 30 in (760 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 78°F(26°C)
- Average high, July
- Coldest nights
- 25°F(-4°C)
- Average low, January
- Rain per year
- 30 in(760 mm)
- No clear rainy season
- Humidity
- 70%
- Sunniest: July
Best and worst months in Aosta
Best for weatherThe most comfortable weather comes from June to August, with highs around 77°F (25°C) and about 2.6 in (65 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; January is the coldest, with highs of only 40°F (5°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 August.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Aosta weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 40°F(5°C) | 25°F(-4°C) | 2.2 in(57 mm) | 80% | 1.6 |
| FebFebruary | 43°F(6°C) | 26°F(-3°C) | 2.1 in(53 mm) | 73% | 2.5 |
| MarMarch | 52°F(11°C) | 33°F(1°C) | 1.8 in(45 mm) | 64% | 3.6 |
| AprApril | 60°F(15°C) | 40°F(4°C) | 2.0 in(52 mm) | 58% | 4.8 |
| MayMay | 69°F(20°C) | 47°F(9°C) | 3.0 in(77 mm) | 67% | 5.5 |
| JunJuneBest | 76°F(25°C) | 55°F(13°C) | 3.0 in(77 mm) | 66% | 6.4 |
| JulJulyBest | 78°F(26°C) | 56°F(14°C) | 2.3 in(58 mm) | 66% | 6.5 |
| AugAugustBest | 77°F(25°C) | 56°F(13°C) | 2.4 in(61 mm) | 67% | 5.7 |
| SepSeptember | 68°F(20°C) | 50°F(10°C) | 2.4 in(60 mm) | 71% | 4.2 |
| OctOctober | 60°F(15°C) | 43°F(6°C) | 2.8 in(71 mm) | 77% | 2.6 |
| NovNovember | 47°F(9°C) | 34°F(1°C) | 3.2 in(82 mm) | 81% | 1.6 |
| DecDecember | 41°F(5°C) | 27°F(-3°C) | 2.6 in(67 mm) | 75% | 1.3 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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