Aarhus weather by month
Aarhus runs from about 1°C in January to 17°C in August, with July the wettest month at 133 mm.
warmest month
August
17°C
coolest month
January
1°C
wettest month
July
133 mm
worst air month
March
11 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 1°C | 75 mm | 110 h | 7 |
| February | 4°C | 117 mm | 99 h | 6 |
| March | 5°C | 43 mm | 182 h | 11 |
| April | 7°C | 121 mm | 241 h | 7 |
| May | 14°C | 54 mm | 394 h | 5 |
| June | 14°C | 108 mm | 385 h | 5 |
| July | 16°C | 133 mm | 368 h | 5 |
| August | 17°C | 80 mm | 353 h | 5 |
| September | 15°C | 74 mm | 282 h | 4 |
| October | 11°C | 48 mm | 179 h | 4 |
| November | 6°C | 35 mm | 89 h | 8 |
| December | 5°C | 64 mm | 36 h | 8 |
About 2,718 hours of sun a year. Roughly 95 rainy days a year.
These are long-run climate normals, not a forecast. A given year can sit well outside them. PM2.5 is a global model: near the coast it counts sea salt as fine particulate and reads high against ground stations, sometimes by a factor of two. Use the shape of the year, not the absolute number.
where these numbers come from
- · Temperature, rainfall and sunshine: ECMWF ERA5 reanalysis climate normals via Open-Meteo (CC BY 4.0), fetched once and stored.
- · PM2.5: Copernicus CAMS reanalysis, monthly means. Modelled, not station readings; near coasts CAMS counts sea salt as PM2.5 and reads high.
Last reviewed 2026-05-23. Full method, licences and the list of sources we rejected are on the methodology page.