Last updated: March 2, 2024
The weather in Mariehamn, Åland Islands, during August is characterized by an average temperature of 17°C (63°F). Highs can soar to 20°C (69°F), while lows may dip to 14°C (57°F). Typically, the humidity level in Mariehamn throughout August hovers around 77%.
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Average temperature
Maximum temperature
Humidity
In August, Mariehamn averages 53 mm (2.1 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 15 hours 30 minutes of daylight, with the sun shining for approximately 13 hours 42 minutes each day. Additionally, there is a 39% probability of sunny days during this period.
Precipitation
Rainy days
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Chance of sun
In August, the UV Index in Mariehamn 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 | 5 | 4 | 3 | 2 | 1 |
| Exposure | Low | Moderate | Low | ||||||||||
| Time to burn | 45 min | 30 min | 45 min | ||||||||||