Gijon weather by month
Gijon runs from about 10°C in January to 20°C in August, with October the wettest month at 184 mm.
warmest month
August
20°C
coolest month
January
10°C
wettest month
October
184 mm
worst air month
March
9 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 10°C | 113 mm | 186 h | 5 |
| February | 11°C | 149 mm | 176 h | 6 |
| March | 11°C | 128 mm | 248 h | 9 |
| April | 13°C | 86 mm | 267 h | 9 |
| May | 14°C | 103 mm | 320 h | 7 |
| June | 17°C | 134 mm | 263 h | 7 |
| July | 19°C | 49 mm | 347 h | 6 |
| August | 20°C | 46 mm | 307 h | 8 |
| September | 17°C | 143 mm | 261 h | 6 |
| October | 16°C | 184 mm | 231 h | 6 |
| November | 14°C | 61 mm | 214 h | 5 |
| December | 10°C | 113 mm | 198 h | 6 |
About 3,018 hours of sun a year. Roughly 130 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.