Last updated: March 2, 2024
The weather in Sao Joao de Meriti, Brazil, during September is characterized by an average temperature of 23°C (74°F). Highs can soar to 36°C (97°F), while lows may dip to 15°C (59°F). Typically, the humidity level in Sao Joao de Meriti throughout September hovers around 68%.
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Humidity
In September, Sao Joao de Meriti averages 67 mm (2.6 inches) of rainfall, typically over the course of 9 rainy days. The month enjoys an average of 11 hours 57 minutes of daylight, with the sun shining for approximately 9 hours 46 minutes each day. Additionally, there is a 45% probability of sunny days during this period.
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In September, the UV Index in Sao Joao de Meriti reaches a maximum of 11, 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 | 1 | 3 | 6 | 9 | 11 | 11 | 9 | 7 | 4 | 2 | 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 | ||||