Sibiu weather by month
Sibiu runs from about 1°C in January to 24°C in July, with June the wettest month at 101 mm.
warmest month
July
24°C
coolest month
January
1°C
wettest month
June
101 mm
worst air month
December
23 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 1°C | 26 mm | 184 h | 21 |
| February | 7°C | 72 mm | 185 h | 13 |
| March | 8°C | 91 mm | 260 h | 14 |
| April | 13°C | 62 mm | 314 h | 9 |
| May | 15°C | 91 mm | 359 h | 6 |
| June | 22°C | 101 mm | 406 h | 6 |
| July | 24°C | 62 mm | 416 h | 6 |
| August | 23°C | 58 mm | 379 h | 7 |
| September | 17°C | 68 mm | 281 h | 7 |
| October | 11°C | 25 mm | 260 h | 9 |
| November | 4°C | 64 mm | 175 h | 14 |
| December | 2°C | 35 mm | 117 h | 23 |
About 3,336 hours of sun a year. Roughly 76 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 2026-05-25. Full method, licences and the list of sources we rejected are on the methodology page.