Mariehamn Weather in April
Mariehamn in April sees low daytime temperatures of 6°C (43°F) and nighttime lows of 2°C (36°F). Moderate rainfall is typical, with around 33 mm (1.3 in) for the month.
Rainfall in Mariehamn in April
Typically, about 11 days will experience rainfall, with an average of 33 mm (1.3 in) for the month. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.
Temperature in Mariehamn in April
If you're visiting Mariehamn in April, expect highs of 6°C (43°F) and overnight lows around 2°C (36°F). It stays cool throughout the day, so warm layers are a good idea from morning to evening. At 2°C (36°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.If you're looking for dry conditions and comfortable temperatures, April may not be the ideal month to visit Mariehamn. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Finland, check out our Mariehamn's climate page.
Mariehamn Temperature in April
Min Temperature
2°C (36°F)
Max Temperature
6°C (43°F)
Chance of Rain
37%
Precipitation
33 mm (1.3 in)
Rainy days
11 days
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Mariehamn typically rise from around 5°C (41°F) at the start of April to approximately 9°C (48°F) by the end. Nights are cold, with lows typically ranging from -2°C (28°F) to 2°C (36°F).
Average temperatures in April
Historical weather for Mariehamn in April
Browse day-by-day weather records for Mariehamn spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Mariehamn historical weather extremes in April
According to our 50 years of weather records for Mariehamn, the following extremes were recorded between 1976 and 2026.
- Mariehamn recorded its highest April temperature of 19°C (66°F) on April 27, 2019.
- The coldest April day was on April 8, 1977, with a maximum of -3°C (27°F).
- Nighttime temperatures dropped to -11°C (12°F) on April 1, 2022, marking the coldest April night on record.
Best Places in Finland in April
Find out more about the weather in Finland and which places have the best travel conditions in this month. See all of Finland in April →
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What to Wear in Mariehamn in April
Cold weather calls for smart layering in April. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Pack a light rain jacket or compact umbrella for occasional showers.What To Do in Mariehamn in April
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Finland, check out our Mariehamn's climate page.
See the full Mariehamn climate overview or explore weather in Finland.
