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The weather in Fortaleza in September is hot. The average temperatures are between 21°C and 35°C.
There shouldn't be any rainy days in in Fortaleza during September. Having said that, the days are very hot in September so hanging out outside is more recomanded during the after noons and evening time.
Our weather forecast can give you a great sense of what weather to expect in Fortaleza in September 2025.
If you’re planning to visit Fortaleza in the near future, we highly recommend that you review the 14 day weather forecast for Fortaleza before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 31° / 22° | 13 | 18 | 0 | 312 mm | Ok | Fortaleza in January |
| February | 31° / 21° | 15 | 14 | 0 | 313 mm | Ok | Fortaleza in February |
| March | 30° / 21° | 22 | 9 | 0 | 415 mm | Ok | Fortaleza in March |
| April | 29° / 21° | 20 | 10 | 0 | 404 mm | Ok | Fortaleza in April |
| May | 29° / 20° | 12 | 19 | 0 | 277 mm | Ok | Fortaleza in May |
| June | 30° / 20° | 5 | 25 | 0 | 113 mm | Good | Fortaleza in June |
| July | 31° / 20° | 3 | 28 | 0 | 73 mm | Good | Fortaleza in July |
| August | 33° / 20° | 1 | 30 | 0 | 21 mm | Good | Fortaleza in August |
| September | 35° / 21° | 0 | 30 | 0 | 10 mm | Ok | Fortaleza in September |
| October | 36° / 22° | 1 | 30 | 0 | 35 mm | Ok | Fortaleza in October |
| November | 35° / 22° | 2 | 28 | 0 | 46 mm | Ok | Fortaleza in November |
| December | 34° / 23° | 4 | 27 | 0 | 87 mm | Ok | Fortaleza in December |