See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
13°
Overcast
Feels Like: 13°
Min: 12°
Max: 15°
The next few hours will be overcast, with today reaching 15°C and dropping to 12°C. The coming days will be breezy
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
07:43
Sunrise
19:18
Sunset
Moon
Waxing Gibbous
18:59
Moonrise
05:36
Moonset
Daily Forecast
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UV Index
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View stargazing scoreWeather in Mariehamn Airport today, September 25, 2026
Mariehamn Airport starts September 25, 2026 looking damp, with rain in the forecast and wetter spells likely at times. Waterproof kit is the safer call for early plans. Early hours look the most unsettled, with rain probability near 94% by 10:00. The thickest cloud arrives around 08:00, reaching about 100%.
The temperature range runs from about 12°C up to 15°C. Moisture in the air spans 79%-96%, with the highest values around 22:00. Winds stay light, near 6.5 km/h by 07:00, so the day feels still more than breezy.
Afternoon showers stay in play, peaking near 52% around 14:00. Skies remain cluttered, with cover about 100% by 20:00. Horizontal visibility sits around 21.8 km, briefly nearer 8.8 km. Expect sunrise at 07:43, sunset at 19:18, and 11 hours 34 minutes of sunlight today overall.
The practical takeaway for Mariehamn Airport on September 25, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 15°C.
Frequently asked questions about weather in Mariehamn Airport
How warm does it get in Mariehamn Airport?
The warmest month in Mariehamn Airport is July, with average high temperatures of 18°C. The average temperature during this period is around 17°C.
How cold does it get in Mariehamn Airport?
The coldest month in Mariehamn Airport is February, with average low temperatures of -1°C. The average temperature during this period is around 0°C.
What is the wettest time of year in Mariehamn Airport?
The wettest month in Mariehamn Airport is October, with an average of 78mm of precipitation.
What is the driest time of year in Mariehamn Airport?
The driest month in Mariehamn Airport is April, with an average of 28mm of precipitation.
