Walvis Bay weather by month
Walvis Bay runs from about 13°C in July to 22°C in May, with May the wettest month at 6 mm.
warmest month
May
22°C
coolest month
July
13°C
wettest month
May
6 mm
worst air month
December
10 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 20°C | 2 mm | 356 h | 9 |
| February | 20°C | 0 mm | 350 h | 7 |
| March | 20°C | 0 mm | 344 h | 8 |
| April | 18°C | 0 mm | 316 h | 6 |
| May | 22°C | 6 mm | 310 h | 5 |
| June | 19°C | 0 mm | 286 h | 4 |
| July | 13°C | 0 mm | 295 h | 6 |
| August | 14°C | 0 mm | 317 h | 6 |
| September | 15°C | 1 mm | 329 h | 8 |
| October | 16°C | 0 mm | 348 h | 9 |
| November | 17°C | 1 mm | 337 h | 9 |
| December | 18°C | 1 mm | 365 h | 10 |
About 3,953 hours of sun a year. Roughly 1 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.