Sarajevo weather by month
Sarajevo runs from about 2°C in January to 24°C in August, with September the wettest month at 127 mm.
warmest month
August
24°C
coolest month
January
2°C
wettest month
September
127 mm
worst air month
December
43 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 2°C | 92 mm | 167 h | 35 |
| February | 7°C | 82 mm | 207 h | 31 |
| March | 9°C | 69 mm | 264 h | 28 |
| April | 12°C | 50 mm | 324 h | 23 |
| May | 16°C | 59 mm | 360 h | 14 |
| June | 22°C | 93 mm | 401 h | 12 |
| July | 24°C | 62 mm | 412 h | 9 |
| August | 24°C | 20 mm | 402 h | 9 |
| September | 17°C | 127 mm | 253 h | 11 |
| October | 14°C | 76 mm | 280 h | 15 |
| November | 5°C | 105 mm | 207 h | 24 |
| December | 3°C | 95 mm | 137 h | 43 |
About 3,414 hours of sun a year. Roughly 94 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 2026-05-23. Full method, licences and the list of sources we rejected are on the methodology page.