Kotor weather by month
Kotor runs from about 9°C in January to 28°C in July, with September the wettest month at 281 mm.
warmest month
July
28°C
coolest month
January
9°C
wettest month
September
281 mm
worst air month
March
14 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 9°C | 200 mm | 205 h | 8 |
| February | 12°C | 210 mm | 235 h | 8 |
| March | 13°C | 204 mm | 277 h | 14 |
| April | 16°C | 115 mm | 328 h | 10 |
| May | 19°C | 236 mm | 356 h | 8 |
| June | 25°C | 154 mm | 407 h | 8 |
| July | 28°C | 39 mm | 430 h | 7 |
| August | 28°C | 51 mm | 396 h | 7 |
| September | 22°C | 281 mm | 293 h | 6 |
| October | 19°C | 226 mm | 293 h | 5 |
| November | 13°C | 231 mm | 233 h | 6 |
| December | 10°C | 219 mm | 177 h | 10 |
About 3,630 hours of sun a year. Roughly 217 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.