Debrecen weather by month
Debrecen runs from about 1°C in January to 25°C in July, with June the wettest month at 85 mm.
warmest month
July
25°C
coolest month
January
1°C
wettest month
June
85 mm
worst air month
December
25 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 1°C | 52 mm | 174 h | 24 |
| February | 8°C | 18 mm | 195 h | 16 |
| March | 9°C | 26 mm | 234 h | 16 |
| April | 14°C | 43 mm | 306 h | 9 |
| May | 18°C | 43 mm | 389 h | 7 |
| June | 22°C | 85 mm | 385 h | 6 |
| July | 25°C | 28 mm | 424 h | 6 |
| August | 25°C | 20 mm | 380 h | 6 |
| September | 19°C | 67 mm | 257 h | 8 |
| October | 12°C | 56 mm | 235 h | 8 |
| November | 3°C | 53 mm | 154 h | 16 |
| December | 2°C | 19 mm | 113 h | 25 |
About 3,246 hours of sun a year. Roughly 52 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 2026-05-24. Full method, licences and the list of sources we rejected are on the methodology page.