Last updated: March 2, 2024
The weather in Sark, Guernsey, during September is characterized by an average temperature of 17°C (62°F). Highs can soar to 21°C (70°F), while lows may dip to 13°C (56°F). Typically, the humidity level in Sark throughout September hovers around 79%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In September, Sark averages 71 mm (2.8 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 12 hours 32 minutes of daylight, with the sun shining for approximately 11 hours 16 minutes each day. Additionally, there is a 43% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In September, the UV Index in Sark reaches a maximum of 6, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 30 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 | 1 | 2 | 3 | 4 | 5 | 5 | 5 | 4 | 3 | 2 | 1 | 1 |
| Exposure | Low | Moderate | Low | ||||||||||
| Time to burn | 45 min | 30 min | 45 min | ||||||||||