Pemba weather by month
Pemba runs from about 25°C in July to 28°C in November, with January the wettest month at 284 mm.
warmest month
November
28°C
coolest month
July
25°C
wettest month
January
284 mm
worst air month
September
8 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 26°C | 284 mm | 255 h | 7 |
| February | 27°C | 265 mm | 295 h | 5 |
| March | 27°C | 244 mm | 312 h | 3 |
| April | 27°C | 69 mm | 306 h | 4 |
| May | 26°C | 27 mm | 335 h | 4 |
| June | 25°C | 12 mm | 316 h | 7 |
| July | 25°C | 5 mm | 341 h | 6 |
| August | 25°C | 28 mm | 339 h | 6 |
| September | 25°C | 9 mm | 347 h | 8 |
| October | 26°C | 18 mm | 369 h | 6 |
| November | 28°C | 74 mm | 348 h | 5 |
| December | 28°C | 142 mm | 373 h | 4 |
About 3,936 hours of sun a year. Roughly 118 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 2026-05-24. Full method, licences and the list of sources we rejected are on the methodology page.