Belém weather in September
September is one of the best months to visit Belém: highs of 33°C (91°F) and about 75 mm (3.0 in) of rain on average. Nights average 24°C (76°F) and cloud cover 42% (NASA POWER, 2001–2025 averages). It is the driest month of the year and the 2nd warmest. Compared with August, it is warmer and drier; October brings highs of 33°C (92°F) and 79 mm (3.1 in) of rain.
Is September a good time to visit Belém?
best month Weather score 72/100.
Yes. September is one of the best months for weather in Belém.
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Does it rain a lot in Belém in September?
Some rain is normal: about 75 mm (3.0 in) falls in an average September. It is the driest month of the year.
How warm is Belém in September?
Days average 33°C (91°F) and nights 24°C (76°F).
Belém weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 29°C (83°F) | 24°C (75°F) | 311 mm | 79% | least pleasant |
| February | 28°C (82°F) | 24°C (75°F) | 369 mm | 87% | least pleasant |
| March | 28°C (82°F) | 24°C (75°F) | 411 mm | 87% | least pleasant |
| April | 28°C (82°F) | 24°C (76°F) | 383 mm | 82% | least pleasant |
| May | 28°C (83°F) | 24°C (76°F) | 275 mm | 73% | least pleasant |
| June | 29°C (83°F) | 24°C (75°F) | 171 mm | 57% | fair |
| July | 29°C (84°F) | 24°C (75°F) | 119 mm | 51% | best |
| August | 31°C (87°F) | 24°C (75°F) | 93 mm | 41% | best |
| September | 33°C (91°F) | 24°C (76°F) | 75 mm | 42% | best |
| October | 33°C (92°F) | 25°C (76°F) | 79 mm | 51% | best |
| November | 33°C (91°F) | 25°C (76°F) | 94 mm | 56% | best |
| December | 31°C (88°F) | 24°C (76°F) | 188 mm | 72% | fair |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
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