Baku weather by month
Baku runs from about 5°C in January to 27°C in July, with October the wettest month at 102 mm.
warmest month
July
27°C
coolest month
January
5°C
wettest month
October
102 mm
worst air month
November
19 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 5°C | 20 mm | 155 h | 9 |
| February | 6°C | 23 mm | 201 h | 9 |
| March | 8°C | 42 mm | 218 h | 17 |
| April | 16°C | 19 mm | 322 h | 8 |
| May | 17°C | 46 mm | 318 h | 10 |
| June | 26°C | 34 mm | 379 h | 10 |
| July | 27°C | 34 mm | 351 h | 13 |
| August | 27°C | 20 mm | 356 h | 15 |
| September | 23°C | 6 mm | 322 h | 10 |
| October | 16°C | 102 mm | 212 h | 14 |
| November | 11°C | 41 mm | 180 h | 19 |
| December | 7°C | 31 mm | 125 h | 8 |
About 3,139 hours of sun a year. Roughly 41 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.