Delta weather in September
September is one of the least pleasant months in Delta: highs of 28°C (82°F) and about 307 mm (12.1 in) of rain on average. Nights average 22°C (72°F) and cloud cover 84% (NASA POWER, 2001–2025 averages). It is the wettest month of the year and the 2nd coolest. Compared with August, it is about as warm and wetter; October brings highs of 28°C (83°F) and 230 mm (9.1 in) of rain.
Figures are long-term averages for Warri, the largest city in Delta. See below for other places.
Is September a good time to visit Delta?
least pleasant month Weather score 33/100.
September is one of the least pleasant months for weather in Delta. For better conditions, consider Dec–Feb.
Does it rain a lot in Delta in September?
Yes, it is one of the rainy months: about 307 mm (12.1 in) falls in an average September. It is the wettest month of the year.
How warm is Delta in September?
Days average 28°C (82°F) and nights 22°C (72°F).
Delta weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 30°C (85°F) | 21°C (70°F) | 17 mm | 43% | best |
| February | 30°C (87°F) | 23°C (73°F) | 39 mm | 58% | best |
| March | 30°C (86°F) | 24°C (75°F) | 92 mm | 74% | fair |
| April | 30°C (85°F) | 24°C (76°F) | 144 mm | 77% | fair |
| May | 29°C (84°F) | 24°C (75°F) | 196 mm | 76% | fair |
| June | 28°C (82°F) | 23°C (74°F) | 261 mm | 80% | least pleasant |
| July | 28°C (82°F) | 22°C (72°F) | 245 mm | 85% | least pleasant |
| August | 28°C (82°F) | 22°C (71°F) | 208 mm | 81% | least pleasant |
| September | 28°C (82°F) | 22°C (72°F) | 307 mm | 84% | least pleasant |
| October | 28°C (83°F) | 23°C (73°F) | 230 mm | 77% | least pleasant |
| November | 29°C (85°F) | 23°C (74°F) | 98 mm | 59% | fair |
| December | 30°C (86°F) | 22°C (71°F) | 25 mm | 39% | best |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
Weather across Delta in September
Weather can differ a lot within Delta: coasts, hills and mountains each have their own climate.
| Place | High | Low | Rain | Weather |
|---|---|---|---|---|
| Warri | 28°C (82°F) | 22°C (72°F) | 307 mm | least pleasant |
| Sapele | 28°C (82°F) | 22°C (72°F) | 305 mm | least pleasant |
| Ughelli | 29°C (83°F) | 22°C (72°F) | 336 mm | least pleasant |
| Asaba | 28°C (82°F) | 22°C (72°F) | 315 mm | least pleasant |
| Agbor | 28°C (82°F) | 22°C (71°F) | 292 mm | least pleasant |
| Ogwashi-Uku | 28°C (82°F) | 22°C (72°F) | 313 mm | least pleasant |
| Kwale | 29°C (83°F) | 22°C (72°F) | 336 mm | least pleasant |
| Burutu | 28°C (82°F) | 22°C (72°F) | 307 mm | least pleasant |