Climate of Aargau, Switzerland
Area-weighted average across Aargau. For where people actually live and travel, see the cities below.
Aargau, a subdivision of Switzerland, has a seasonal climate on average. Area-weighted monthly temperatures across the whole territory range from 0.3°C / 32.5°F in January to 18.3°C / 64.9°F in July, with rainfall from 81 mm / 3.2 in to 124 mm / 4.9 in depending on the season (1210 mm / 47.6 in total across the year). See the city listed below for point-value climate at specific locations — these often differ from the area-weighted average, especially in geographically diverse subdivisions.
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | 0.3°C32.5°F | 93 mm3.7″ | Snowy |
| February | 1.5°C34.7°F | 95 mm3.7″ | Snowy |
| March | 5°C41°F | 81 mm3.2″ | — |
| April | 8.2°C46.8°F | 90 mm3.5″ | — |
| May | 13°C55.4°F | 104 mm4.1″ | — |
| June | 16°C60.8°F | 124 mm4.9″ | — |
| July | 18.3°C64.9°F | 115 mm4.5″ | — |
| August | 17.7°C63.9°F | 109 mm4.3″ | — |
| September | 14°C57.2°F | 88 mm3.5″ | — |
| October | 9.3°C48.7°F | 98 mm3.9″ | — |
| November | 4.1°C39.4°F | 106 mm4.2″ | — |
| December | 1.3°C34.3°F | 107 mm4.2″ | Snowy |
Frequently asked questions
What is the best time to visit Aargau?
Aargau, Switzerland does not have a clear sunny-and-dry window by our cutoffs. The warmest month is July at 18.3°C / 64.9°F, and the driest is March at 81 mm / 3.2 in — likely your best travel window. For city-level detail, see the cities section below.
What is the climate of Aargau?
Aargau, Switzerland has area-weighted monthly average temperatures ranging from 0.3°C / 32.5°F in January to 18.3°C / 64.9°F in July. Annual rainfall averages about 1210 mm / 47.6 in, with the wettest month being June (124 mm / 4.9 in) and the driest March (81 mm / 3.2 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in Aargau?
The hottest month in Aargau is July, with an area-wide average temperature of 18.3°C / 64.9°F.
What is the coldest month in Aargau?
The coldest month in Aargau is January, with an area-wide average temperature of 0.3°C / 32.5°F.
When does it rain most in Aargau?
The wettest month in Aargau is June, averaging about 124 mm / 4.9 in of rainfall. The driest is March with about 81 mm / 3.2 in.