Last updated: March 2, 2024
The weather in Briarcliff, United States, during September is characterized by an average temperature of 26°C (79°F). Highs can soar to 37°C (99°F), while lows may dip to 15°C (59°F). Typically, the humidity level in Briarcliff throughout September hovers around 66%.
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Average temperature
Maximum temperature
Humidity
In September, Briarcliff averages 102 mm (4.0 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 12 hours 18 minutes of daylight, with the sun shining for approximately 9 hours 14 minutes each day. Additionally, there is a 60% probability of sunny days during this period.
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In September, the UV Index in Briarcliff reaches a maximum of 11, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 15 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 | 0 | 1 | 2 | 4 | 7 | 9 | 10 | 10 | 8 | 6 | 3 | 2 | 1 |
| Exposure | Low | Moderate | High | VeryHigh | High | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 25 min | 30 min | 45 min | ||||||