Alagoas weather in September
September is one of the best months to visit Alagoas: highs of 27°C (80°F) and about 60 mm (2.4 in) of rain on average. Nights average 23°C (73°F) and cloud cover 49% (NASA POWER, 2001–2025 averages). It is the 4th driest month of the year and the 3rd coolest. Compared with August, it is warmer and drier; October brings highs of 28°C (83°F) and 45 mm (1.8 in) of rain.
Figures are long-term averages for Maceió, the largest city in Alagoas. See below for other places.
Is September a good time to visit Alagoas?
best month Weather score 80/100.
Yes. September is one of the best months for weather in Alagoas.
Does it rain a lot in Alagoas in September?
Some rain is normal: about 60 mm (2.4 in) falls in an average September. It is the 4th driest month of the year.
How warm is Alagoas in September?
Days average 27°C (80°F) and nights 23°C (73°F).
Alagoas weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 30°C (85°F) | 25°C (76°F) | 72 mm | 58% | fair |
| February | 30°C (85°F) | 25°C (77°F) | 68 mm | 58% | fair |
| March | 30°C (86°F) | 25°C (77°F) | 87 mm | 54% | fair |
| April | 29°C (85°F) | 25°C (77°F) | 123 mm | 55% | fair |
| May | 28°C (83°F) | 24°C (76°F) | 176 mm | 60% | least pleasant |
| June | 27°C (80°F) | 24°C (74°F) | 204 mm | 62% | least pleasant |
| July | 26°C (79°F) | 23°C (73°F) | 164 mm | 58% | least pleasant |
| August | 26°C (79°F) | 22°C (72°F) | 105 mm | 56% | fair |
| September | 27°C (80°F) | 23°C (73°F) | 60 mm | 49% | best |
| October | 28°C (83°F) | 23°C (74°F) | 45 mm | 46% | best |
| November | 29°C (85°F) | 24°C (75°F) | 25 mm | 45% | best |
| December | 30°C (85°F) | 24°C (76°F) | 29 mm | 50% | best |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
Weather across Alagoas in September
Weather can differ a lot within Alagoas: coasts, hills and mountains each have their own climate.
| Place | High | Low | Rain | Weather |
|---|---|---|---|---|
| Maceió | 27°C (80°F) | 23°C (73°F) | 60 mm | best |
| Arapiraca | 30°C (87°F) | 19°C (66°F) | 45 mm | best |
| Rio Largo | 27°C (80°F) | 23°C (73°F) | 60 mm | best |
| União dos Palmares | 26°C (80°F) | 17°C (62°F) | 58 mm | best |
| Marechal Deodoro | 27°C (80°F) | 23°C (73°F) | 60 mm | best |
| São Miguel dos Campos | 28°C (82°F) | 21°C (70°F) | 54 mm | best |
| Penedo | 29°C (83°F) | 21°C (70°F) | 52 mm | best |
| Coruripe | 28°C (82°F) | 21°C (70°F) | 54 mm | best |
| Delmiro Gouveia | 32°C (90°F) | 18°C (64°F) | 29 mm | best |
| Santana do Ipanema | 32°C (90°F) | 18°C (64°F) | 28 mm | best |
| Atalaia | 27°C (81°F) | 19°C (66°F) | 61 mm | best |
| Teotônio Vilela | 28°C (82°F) | 21°C (70°F) | 54 mm | best |