Valletta weather by month
Valletta runs from about 15°C in January to 29°C in August, with November the wettest month at 45 mm.
warmest month
August
29°C
coolest month
January
15°C
wettest month
November
45 mm
worst air month
April
15 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 15°C | 22 mm | 271 h | 9 |
| February | 15°C | 39 mm | 269 h | 7 |
| March | 16°C | 11 mm | 348 h | 9 |
| April | 18°C | 24 mm | 323 h | 15 |
| May | 21°C | 20 mm | 370 h | 11 |
| June | 26°C | 3 mm | 407 h | 12 |
| July | 28°C | 0 mm | 428 h | 9 |
| August | 29°C | 6 mm | 387 h | 12 |
| September | 26°C | 24 mm | 319 h | 6 |
| October | 23°C | 17 mm | 305 h | 5 |
| November | 19°C | 45 mm | 273 h | 5 |
| December | 15°C | 32 mm | 263 h | 7 |
About 3,963 hours of sun a year. Roughly 24 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.