Savannah weather by month
Savannah runs from about 10°C in January to 27°C in July, with August the wettest month at 296 mm.
warmest month
July
27°C
coolest month
January
10°C
wettest month
August
296 mm
worst air month
July
10 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 10°C | 76 mm | 242 h | 8 |
| February | 12°C | 72 mm | 234 h | 7 |
| March | 16°C | 146 mm | 255 h | 8 |
| April | 19°C | 98 mm | 339 h | 9 |
| May | 23°C | 115 mm | 329 h | 9 |
| June | 26°C | 72 mm | 361 h | 9 |
| July | 27°C | 202 mm | 351 h | 10 |
| August | 26°C | 296 mm | 330 h | 9 |
| September | 24°C | 210 mm | 246 h | 9 |
| October | 20°C | 29 mm | 296 h | 5 |
| November | 18°C | 91 mm | 243 h | 8 |
| December | 11°C | 44 mm | 238 h | 8 |
About 3,464 hours of sun a year. Roughly 146 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.