Lviv weather by month
Lviv runs from about -1°C in January to 22°C in July, with September the wettest month at 115 mm.
warmest month
July
22°C
coolest month
January
-1°C
wettest month
September
115 mm
worst air month
December
17 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | -1°C | 94 mm | 99 h | 17 |
| February | 6°C | 65 mm | 136 h | 14 |
| March | 6°C | 78 mm | 182 h | 16 |
| April | 11°C | 57 mm | 260 h | 9 |
| May | 16°C | 33 mm | 408 h | 7 |
| June | 20°C | 104 mm | 358 h | 7 |
| July | 22°C | 82 mm | 369 h | 8 |
| August | 21°C | 46 mm | 367 h | 9 |
| September | 17°C | 115 mm | 255 h | 8 |
| October | 10°C | 42 mm | 193 h | 9 |
| November | 3°C | 29 mm | 132 h | 14 |
| December | 1°C | 44 mm | 73 h | 17 |
About 2,832 hours of sun a year. Roughly 79 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.