See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
17°
Overcast
Feels Like: 17°
Min: 13°
Max: 18°
The next few hours will be overcast, with today reaching 18°C and dropping to 12°C. The coming days will be cloudy
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:39
Sunrise
18:59
Sunset
Moon
Waxing Crescent
13:27
Moonrise
20:16
Moonset
Daily Forecast
Today
Thursday
Friday
Saturday
Sunday
Monday
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Friday
Air Quality Data Available
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UV Index
Humidity
Weather in Koszalin today, September 16, 2026
Koszalin starts September 16, 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 98% by 10:00. The thickest cloud arrives around 09:00, reaching about 100%.
Temperatures climb from an overnight low near 13°C toward a daytime high of about 18°C. The air stays humid, with relative humidity between 82% and 93% and the peak around 21:00. Expect gentle winds, highest near 14:00 at 3.7 km/h.
Through the afternoon wet weather remains a factor, with rain chances near 100% around 12:00. Cloud also stays substantial, close to 100% near 12:00. Horizontal visibility sits around 21.8 km, briefly nearer 6.9 km. Sunrise is at 06:39 and sunset at 18:59, giving 12 hours 20 minutes of sunlight today.
The practical takeaway for Koszalin on September 16, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 18°C.
Frequently asked questions about weather in Koszalin
How warm does it get in Koszalin?
The warmest month in Koszalin is August, with average high temperatures of 22°C. The average temperature during this period is around 19°C.
How cold does it get in Koszalin?
The coldest month in Koszalin is January, with average low temperatures of 0°C. The average temperature during this period is around 2°C.
What is the wettest time of year in Koszalin?
The wettest month in Koszalin is July, with an average of 108mm of precipitation.
What is the driest time of year in Koszalin?
The driest month in Koszalin is April, with an average of 38mm of precipitation.
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