Last updated: March 2, 2024
The weather in Castletown, Isle of Man, during August is characterized by an average temperature of 15°C (59°F). Highs can soar to 17°C (63°F), while lows may dip to 13°C (55°F). Typically, the humidity level in Castletown throughout August hovers around 79%.
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Average temperature
Maximum temperature
Humidity
In August, Castletown averages 94 mm (3.7 inches) of rainfall, typically over the course of 15 rainy days. The month enjoys an average of 14 hours 45 minutes of daylight, with the sun shining for approximately 12 hours 7 minutes each day. Additionally, there is a 29% probability of sunny days during this period.
Precipitation
Rainy days
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Chance of sun
In August, the UV Index in Castletown reaches a maximum of 7, indicating a level of High exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 25 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 | 4 | 5 | 6 | 7 | 6 | 6 | 5 | 3 | 2 | 1 |
| Exposure | Low | Moderate | High | Moderate | Low | ||||||||
| Time to burn | 45 min | 30 min | 25 min | 30 min | 45 min | ||||||||