Last updated: March 2, 2024
The weather in Sao Mateus, Brazil, during September is characterized by an average temperature of 24°C (75°F). Highs can soar to 27°C (81°F), while lows may dip to 20°C (68°F). Typically, the humidity level in Sao Mateus throughout September hovers around 77%.
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Average temperature
Maximum temperature
Humidity
In September, Sao Mateus averages 60 mm (2.4 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 11 hours 59 minutes of daylight, with the sun shining for approximately 10 hours 38 minutes each day. Additionally, there is a 58% probability of sunny days during this period.
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Rainy days
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Chance of sun
In September, the UV Index in Sao Mateus reaches a maximum of 12, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, during which unprotected skin may burn in as little as 10 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 2 | 4 | 7 | 10 | 12 | 11 | 9 | 6 | 3 | 1 | 1 | 0 | 0 |
| Exposure | Low | Moderate | High | VeryHigh | Extreme | VeryHigh | High | Moderate | Low | ||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 10 min | 15 min | 25 min | 30 min | 45 min | ||||