Tarragona weather by month
Tarragona runs from about 10°C in December to 26°C in August, with October the wettest month at 171 mm.
warmest month
August
26°C
coolest month
December
10°C
wettest month
October
171 mm
worst air month
December
10 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 10°C | 32 mm | 226 h | 7 |
| February | 12°C | 16 mm | 254 h | 7 |
| March | 13°C | 64 mm | 299 h | 9 |
| April | 15°C | 56 mm | 320 h | 9 |
| May | 18°C | 26 mm | 410 h | 8 |
| June | 22°C | 58 mm | 388 h | 9 |
| July | 25°C | 15 mm | 412 h | 6 |
| August | 26°C | 68 mm | 386 h | 10 |
| September | 21°C | 111 mm | 306 h | 6 |
| October | 18°C | 171 mm | 255 h | 7 |
| November | 14°C | 119 mm | 232 h | 6 |
| December | 10°C | 21 mm | 253 h | 10 |
About 3,741 hours of sun a year. Roughly 77 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 2026-05-27. Full method, licences and the list of sources we rejected are on the methodology page.