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Hourly Forecast
Daylight Hours
07:26
Sunrise
18:59
Sunset
Moon
Waxing Gibbous
18:42
Moonrise
05:15
Moonset
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View stargazing scoreWeather in Hämeenlinna today, September 25, 2026
Hämeenlinna 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 44% by 11:00. The thickest cloud arrives around 11:00, reaching about 100%.
The temperature range runs from about 11°C up to 13°C. Relative humidity sits between 81% and 94%, reaching its peak around 23:00. Winds stay light, near 5.6 km/h by 17:00, so the day feels still more than breezy.
Afternoon showers stay in play, peaking near 90% around 17:00. Skies remain cluttered, with cover about 100% by 15:00. Horizontal visibility sits around 22.8 km, briefly nearer 14.4 km. The sun rises at 07:26 and sets at 18:59, for a total of 11 hours 33 minutes of sunlight today.
In short, treat September 25, 2026 in Hämeenlinna as a damp day: pack covers, watch the wetter hours, and expect a high near 13°C.
Frequently asked questions about weather in Hämeenlinna
How warm does it get in Hämeenlinna?
The warmest month in Hämeenlinna is July, with average high temperatures of 21°C. The average temperature during this period is around 18°C.
How cold does it get in Hämeenlinna?
The coldest month in Hämeenlinna is January, with average low temperatures of -7°C. The average temperature during this period is around -5°C.
What is the wettest time of year in Hämeenlinna?
The wettest month in Hämeenlinna is July, with an average of 89mm of precipitation.
What is the driest time of year in Hämeenlinna?
The driest month in Hämeenlinna is March, with an average of 37mm of precipitation.
