Last updated: March 2, 2024
The weather in Port Erin, Isle of Man, during September is characterized by an average temperature of 14°C (58°F). Highs can soar to 17°C (63°F), while lows may dip to 11°C (52°F). Typically, the humidity level in Port Erin throughout September hovers around 85%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In September, Port Erin averages 91 mm (3.6 inches) of rainfall, typically over the course of 14 rainy days. The month enjoys an average of 12 hours 38 minutes of daylight, with the sun shining for approximately 10 hours 27 minutes each day. Additionally, there is a 24% probability of sunny days during this period.
Precipitation
Rainy days
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Chance of sun
In September, the UV Index in Port Erin 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 | 5 | 4 | 3 | 2 | 1 | 1 |
| Exposure | Low | Moderate | Low | ||||||||||
| Time to burn | 45 min | 30 min | 45 min | ||||||||||