Temperature
Cold by day, cold at night.
Aarau is usually most comfortable in April and September. Typical daytime highs range from 41–77°F across the year. Rain is frequent in many months.

Cold by day, cold at night.
Some precipitation is expected this month.
A mix of sunshine and cloud.
Humidity is rarely noticeable in the cool air.
In November, afternoons feel about 43° and nights feel near 36°.
Mostly cloudy skies this month.
Calm winds are typical in November.
November late afternoons are around 46°F, easing to about 43°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 41 | 32 | 3.8 | 13 | 5.3 | 85 |
| Feb | 44 | 32 | 3.2 | 11 | 6.6 | 80 |
| Mar | 52 | 38 | 3.8 | 14 | 8.2 | 74 |
| Apr | 60 | 43 | 3.9 | 15 | 10.0 | 71 |
| May | 67 | 51 | 5.8 | 17 | 10.5 | 74 |
| Jun | 73 | 57 | 5.6 | 17 | 11.6 | 74 |
| Jul | 77 | 60 | 6.0 | 17 | 12.1 | 74 |
| Aug | 76 | 59 | 5.7 | 16 | 10.9 | 77 |
| Sep | 68 | 53 | 4.3 | 13 | 9.0 | 81 |
| Oct | 59 | 46 | 4.0 | 13 | 7.0 | 85 |
| Nov | 48 | 38 | 3.9 | 13 | 5.5 | 87 |
| Dec | 42 | 33 | 4.6 | 14 | 4.7 | 87 |
Similar climates
Want a side-by-side climate view? Compare Aarau with Amsterdam.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Aug 27, 2026
Data & methodology