Weather in Mariehamn for August 2025
In general, the average temperature in Mariehamn at the beginning of August is 18.1 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 16.9 °C by the end of August.
Mariehamn experiences an exceptionally high level of rainfall in August, with more than 24 rainy days on average.
Is August a good time to visit Mariehamn? check out the best time to travel to Mariehamn page.
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Mariehamn in August average weather
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  17° | 2  17° | 3 18° | ||||
| 4 18° | 5 18° | 6 19° | 7 20° | 8 18° | 9 17° | 10 17° |
| 11 17° | 12  17° | 13  18° | 14 18° | 15  18° | 16  18° | 17  18° |
| 18 17° | 19 17° | 20 17° | 21 18° | 22 17° | 23 18° | 24 18° |
| 25 18° | 26  17° | 27 17° | 28 16° | 29 17° | 30 17° | 31 16° |
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Temperatures trend during August in Mariehamn
August weather day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Aug. | Patchy rain possible | 17° /15° | 3.8 mm | 4 | |
| 2 Aug. | Moderate rain at times | 17° /16° | 6.5 mm | 4 | |
| 3 Aug. | Moderate or heavy rain shower | 18° /16° | 5 mm | 4 | |
| 4 Aug. | Patchy rain possible | 18° /16° | 0.6 mm | 5 | |
| 5 Aug. | Patchy rain possible | 18° /16° | 0.5 mm | 4 | |
| 6 Aug. | Moderate or heavy rain shower | 19° /16° | 8.5 mm | 5 | |
| 7 Aug. | Moderate or heavy rain shower | 20° /17° | 10.2 mm | 5 | |
| 8 Aug. | Moderate or heavy rain shower | 18° /16° | 4.8 mm | 5 | |
| 9 Aug. | Patchy rain possible | 17° /16° | 1.7 mm | 4 | |
| 10 Aug. | Moderate rain at times | 17° /15° | 8.7 mm | 4 | |
| 11 Aug. | Moderate or heavy rain shower | 17° /14° | 3.9 mm | 4 | |
| 12 Aug. | Cloudy | 17° /14° | 0.5 mm | 4 | |
| 13 Aug. | Heavy rain at times | 18° /16° | 1.8 mm | 4 | |
| 14 Aug. | Cloudy | 18° /16° | 0 mm | 4 | |
| 15 Aug. | Partly cloudy | 18° /16° | 1.5 mm | 5 | |
| 16 Aug. | Overcast | 18° /16° | 6.2 mm | 4 | |
| 17 Aug. | Sunny | 18° /15° | 0 mm | 5 | |
| 18 Aug. | Overcast | 17° /15° | 0.1 mm | 4 | |
| 19 Aug. | Patchy rain possible | 17° /15° | 0.4 mm | 4 | |
| 20 Aug. | Cloudy | 17° /15° | 0.3 mm | 5 | |
| 21 Aug. | Patchy rain possible | 18° /16° | 6.4 mm | 4 | |
| 22 Aug. | Patchy rain possible | 17° /14° | 2 mm | 4 | |
| 23 Aug. | Partly cloudy | 18° /15° | 0.8 mm | 5 | |
| 24 Aug. | Heavy rain at times | 18° /15° | 2.3 mm | 4 | |
| 25 Aug. | Patchy rain possible | 18° /16° | 0.5 mm | 4 | |
| 26 Aug. | Light drizzle | 17° /15° | 0.9 mm | 5 | |
| 27 Aug. | Patchy rain possible | 17° /15° | 2.2 mm | 5 | |
| 28 Aug. | Light rain shower | 16° /15° | 9.6 mm | 4 | |
| 29 Aug. | Overcast | 17° /15° | 0 mm | 5 | |
| 30 Aug. | Light rain shower | 17° /15° | 7 mm | 4 | |
| 31 Aug. | Light rain shower | 16° /14° | 2.7 mm | 4 | |
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Guide for Mariehamn in August
In August, Mariehamn, Aland Islands experiences a mild and pleasant climate, making it an ideal time to visit this picturesque destination. At the beginning of the month, the weather in Mariehamn is typically warm with average temperatures around 18° during the day and 12° at night.
The days are long, providing ample daylight hours to explore the beautiful landscapes and coastal areas. Visitors can expect mostly clear skies and a gentle breeze, creating a comfortable outdoor environment for sightseeing and outdoor activities.
Towards the end of August, the weather in Mariehamn remains favorable for travelers. The temperatures tend to slightly decrease, with daytime averages around 16° and nighttime temperatures around 10°.
While there may be a slight increase in cloud cover, rainfall is generally minimal, allowing visitors to continue enjoying the outdoor attractions and cultural experiences that the Aland Islands have to offer.
Overall, August presents an excellent opportunity to visit Mariehamn and the Aland Islands, as the weather is generally pleasant and conducive to exploring the archipelago's natural beauty and charming towns.
Mariehamn in August - FAQ
What to pack to Mariehamn in August?
As you prepare for your trip to Mariehamn in August, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Mariehamn, during August, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Layered Clothing: Light sweaters, long-sleeve shirts, light jackets, and comfortable pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Umbrellas/Raincoats: For rainy days
August rainfall patterns in Mariehamn
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Where is Mariehamn?Get accurate weather forecasts for Mariehamn, located at latitude 60.097 and longitude 19.935. Stay updated with localized weather information tailored for Mariehamn.