Last updated: March 2, 2024
The weather in Ullapool, United Kingdom, during September is characterized by an average temperature of 12°C (54°F). Highs can soar to 18°C (65°F), while lows may dip to 6°C (43°F). Typically, the humidity level in Ullapool throughout September hovers around 89%.
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Average temperature
Maximum temperature
Humidity
In September, Ullapool averages 165 mm (6.5 inches) of rainfall, typically over the course of 22 rainy days. The month enjoys an average of 12 hours 43 minutes of daylight, with the sun shining for approximately 9 hours 5 minutes each day. Additionally, there is a 16% probability of sunny days during this period.
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Chance of sun
In September, the UV Index in Ullapool 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 | 1 | 2 | 3 | 4 | 4 | 4 | 4 | 3 | 2 | 1 | 1 |
| Exposure | Low | Moderate | Low | ||||||||||
| Time to burn | 45 min | 30 min | 45 min | ||||||||||