Weather in Mariehamn for May 2025
In general, the average temperature in Mariehamn at the beginning of May is 5 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 11.3 °C by the end of May.
With an average of 4 rainy days, Mariehamn experiences minimal rainfall in May.
Temperatures
Rain 🌧️
Mariehamn in May average weather
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  5° | 2 6° | 3  5° | 4 6° | |||
| 5 5° | 6 4° | 7 4° | 8  5° | 9 6° | 10 7° | 11  7° |
| 12 8° | 13 9° | 14 9° | 15 9° | 16  9° | 17 9° | 18 10° |
| 19 10° | 20 10° | 21 10° | 22 11° | 23  11° | 24 12° | 25 12° |
| 26 11° | 27 11° | 28 11° | 29 10° | 30 12° | 31 12° |
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Temperatures trend during May in Mariehamn
May weather day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May | Patchy rain possible | 5° /3° | 2.2 mm | 3 | |
| 2 May | Patchy rain possible | 6° /3° | 2.6 mm | 3 | |
| 3 May | Overcast | 5° /4° | 0 mm | 2 | |
| 4 May | Patchy rain possible | 6° /2° | 0.1 mm | 2 | |
| 5 May | Patchy rain possible | 5° /2° | 0.2 mm | 2 | |
| 6 May | Overcast | 4° /2° | 0 mm | 2 | |
| 7 May | Overcast | 4° /2° | 0 mm | 2 | |
| 8 May | Partly cloudy | 5° /3° | 0 mm | 2 | |
| 9 May | Partly cloudy | 6° /3° | 0.7 mm | 3 | |
| 10 May | Overcast | 7° /4° | 0.8 mm | 2 | |
| 11 May | Sunny | 7° /5° | 0 mm | 3 | |
| 12 May | Sunny | 8° /5° | 0.1 mm | 3 | |
| 13 May | Sunny | 9° /6° | 0 mm | 3 | |
| 14 May | Sunny | 9° /6° | 0 mm | 4 | |
| 15 May | Partly cloudy | 9° /7° | 0 mm | 4 | |
| 16 May | Heavy rain at times | 9° /7° | 1.9 mm | 3 | |
| 17 May | Heavy rain at times | 9° /6° | 2.4 mm | 3 | |
| 18 May | Sunny | 10° /6° | 0 mm | 4 | |
| 19 May | Sunny | 10° /7° | 0 mm | 4 | |
| 20 May | Sunny | 10° /7° | 0 mm | 4 | |
| 21 May | Sunny | 10° /7° | 0 mm | 4 | |
| 22 May | Overcast | 11° /8° | 0 mm | 3 | |
| 23 May | Moderate rain at times | 11° /9° | 0.3 mm | 4 | |
| 24 May | Sunny | 12° /8° | 0.2 mm | 4 | |
| 25 May | Overcast | 12° /8° | 0.2 mm | 3 | |
| 26 May | Patchy rain possible | 11° /8° | 0.1 mm | 3 | |
| 27 May | Partly cloudy | 11° /8° | 0 mm | 4 | |
| 28 May | Patchy rain possible | 11° /9° | 0.5 mm | 4 | |
| 29 May | Overcast | 10° /8° | 0.1 mm | 3 | |
| 30 May | Sunny | 12° /8° | 0 mm | 4 | |
| 31 May | Partly cloudy | 12° /9° | 0.6 mm | 4 | |
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Guide for Mariehamn in May
In May, Mariehamn, Aland Islands experiences a transition from the cool spring weather to the milder temperatures of early summer. At the beginning of the month, the weather in Mariehamn is typically cool, with average temperatures around 8° and occasional rainfall.
As the month progresses, the temperatures gradually rise, and by the end of May, the weather becomes noticeably milder with average temperatures around 14°. The days become longer, providing more daylight for outdoor activities and exploration.
The weather in Mariehamn during May is characterized by a mix of sunny days and occasional showers, making it important for travelers to pack layers and be prepared for changing conditions.
The natural beauty of the Aland Islands is particularly enchanting during this time, with the landscape coming to life as the spring blooms reach their peak and the lush greenery becomes more vibrant.
Overall, May is a delightful time to visit Mariehamn, offering a balance of refreshing spring weather at the beginning of the month and the pleasant warmth of early summer by the end.
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Mariehamn in May - FAQ
May 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.