Mariehamn Weather in January
Thinking of visiting Mariehamn in January? Expect low temperatures reaching 3°C (37°F) during the day, dropping to -1°C (30°F) at night, with some snow/rainfall likely.
Rainfall in Mariehamn in January
The climate data from previous years indicates about 20 days of snow/rain, averaging 51 mm (2 in) for the month. Rain is frequent but mostly light this month, with brief showers more common than heavy downpours.
Temperature in Mariehamn in January
If you're visiting Mariehamn in January, expect highs of 3°C (37°F) and overnight lows around -1°C (30°F). The winter season is characteristic of January. Staying warm is the main priority this month, especially during mornings and evenings. Nights drop below freezing to -1°C (30°F). An extra blanket is worth packing if you're unsure about the heating where you're staying. Known for its cold temperatures, this month requires warm clothing. Ensure you dress appropriately to stay comfortable.January in Mariehamn has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.
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 January
Min Temperature
-1°C (30°F)
Max Temperature
3°C (37°F)
Chance of Rain
65%
Precipitation
51 mm (2 in)
Rainy days
20 days
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Mariehamn typically stay consistent throughout January, with daily highs averaging around 3°C (37°F). Nights are very cold, with lows typically ranging from -6°C (21°F) to -3°C (27°F).
Average temperatures in January
Historical weather for Mariehamn in January
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 January
Our historical data for Mariehamn spans 1976 to 2025, revealing these weather extremes.
- On January 10, 2007, temperatures climbed to 9°C (48°F), marking the warmest January day on record.
Best Places in Finland in January
Find out more about the weather in Finland and which places have the best travel conditions in this month. See all of Finland in January →
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What to Wear in Mariehamn in January
Dress warmly and in layers for your trip to Mariehamn in January. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. Wet weather is likely, so pack waterproof gear for multiple rainy days.What To Do in Mariehamn in January
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.
