Sal Rei Weather in September
What's the weather like in Sal Rei (Boa Vista) in September 2025?
The climate in Sal Rei during September can be summarized as hot, humid and reasonably dry.
September is in the fall / autumn in Sal Rei and is typically the warmest month of the year. Daytime maximum temperatures average around a steamy 29°C (84°F), whilst at night 24°C (75°F) is normal.
| Daytime temperature | 29°C 84.2°F |
|---|---|
| Nightly temperature | 23.7°C 74.7°F |
| Average temperature | 26.4°C 79.4°F |
| Daily sunshine | 3.2 hrs |
| Avg rainfall | 69 mm 2.7 ins |
| Rainy days | 5 days |
| Sea temperature | 26.9°C 80.5°F |
| Humidity | 77% |
| Windspeed | 16.6kph 10 mph |
On average September is the wettest month of the year in Sal Rei with around 69mm 2.7 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 5 days, although this may vary considerably.
On the flip side this corresponds to an average of 3.2 hours of sunshine per day.
September temperatures in Sal Rei
September rainfall
September hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Sal Rei in September 2025.
Other monthly averages
Best places to visit in September
Sal Rei weather stats
| Hottest month: | September | 28.9°C 84°F |
|---|---|---|
| Driest month: | April | 0mm 0ins |
| Sunniest month: | October | 4.8hrs |
| Coldest month: | February | 23.9°C 75°F |
| Wettest month: | September | 69mm 2.7ins |
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