Last updated: March 2, 2024
The weather in Alnmouth, United Kingdom, during September is characterized by an average temperature of 13°C (56°F). Highs can soar to 17°C (64°F), while lows may dip to 9°C (48°F). Typically, the humidity level in Alnmouth throughout September hovers around 87%.
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Average temperature
Maximum temperature
Humidity
In September, Alnmouth averages 66 mm (2.6 inches) of rainfall, typically over the course of 14 rainy days. The month enjoys an average of 12 hours 39 minutes of daylight, with the sun shining for approximately 10 hours 25 minutes each day. Additionally, there is a 27% 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 Alnmouth reaches a maximum of 5, 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 | 4 | 4 | 3 | 2 | 1 | 1 |
| Exposure | Low | Moderate | Low | ||||||||||
| Time to burn | 45 min | 30 min | 45 min | ||||||||||