Wrocław weather by month
Wrocław runs from about 1°C in January to 21°C in August, with September the wettest month at 125 mm.
warmest month
August
21°C
coolest month
January
1°C
wettest month
September
125 mm
worst air month
December
35 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 1°C | 58 mm | 125 h | 32 |
| February | 7°C | 82 mm | 98 h | 27 |
| March | 9°C | 27 mm | 235 h | 27 |
| April | 12°C | 29 mm | 279 h | 13 |
| May | 17°C | 36 mm | 399 h | 10 |
| June | 19°C | 70 mm | 370 h | 8 |
| July | 21°C | 92 mm | 381 h | 7 |
| August | 21°C | 88 mm | 339 h | 9 |
| September | 17°C | 125 mm | 262 h | 10 |
| October | 11°C | 37 mm | 202 h | 13 |
| November | 5°C | 35 mm | 109 h | 27 |
| December | 3°C | 35 mm | 95 h | 35 |
About 2,894 hours of sun a year. Roughly 74 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.