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Hourly Forecast
Daylight Hours
07:20
Sunrise
18:55
Sunset
Moon
Waxing Gibbous
18:36
Moonrise
05:11
Moonset
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View stargazing scoreWeather in Porvoo today, September 25, 2026
Rain features in Porvoo on September 25, 2026, so keep waterproofs handy through the day. The damp theme is strongest where shower chances rise. The morning carries the wetter risk, with rain chances near 100% and the highest odds around 10:00. Cloud is also thick early on, peaking near 100% around 08:00.
The day peaks near 13°C and cools toward 12°C. The air stays humid, with relative humidity between 84% and 92% and the peak around 09:00. Winds stay light, near 6.9 km/h by 14:00, so the day feels still more than breezy.
Afternoon showers stay in play, peaking near 100% around 12:00. Skies remain cluttered, with cover about 100% by 13:00. Horizontal visibility sits around 21.8 km, briefly nearer 9.6 km. Expect sunrise at 07:20, sunset at 18:55, and 11 hours 34 minutes of sunlight today overall.
The practical takeaway for Porvoo on September 25, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 13°C.
