See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
7°
Mostly Clear
Feels Like: 7°
Min: 5°
Max: 19°
The next few hours will be mostly clear, with today reaching 19°C and dropping to 9°C. The coming days will be drizzle
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:42
Sunrise
18:29
Sunset
Moon
Waxing Gibbous
17:54
Moonrise
04:59
Moonset
Daily Forecast
Today
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Air Quality Data Available
Upgrade to access real-time air quality data for Kastamonu.
Resources
UV Index
Humidity
Current stargazing conditions?
See sky darkness, moon phase, and the best viewing window for Kastamonu.
View stargazing scoreWeather in Kastamonu today, September 25, 2026
Kastamonu stays under cloudy skies on September 25, 2026, with only brief brighter breaks. Plan for a day that feels grey more often than open. The morning looks comparatively open, with cloud near 37% around 11:00. Early outdoor plans have a better chance of staying dry and bright.
Expect highs of 19°C and cooler readings close to 5°C. The air stays humid, with relative humidity between 45% and 99% and the peak around 06:00. Winds stay light, near 2.9 km/h by 18:00, so the day feels still more than breezy.
Later hours favour clearer intervals, as cloud stays near 46% around 15:00. The afternoon is the better half for outdoor time. Expect visibility around 16.1 km. The sun rises at 06:42 and sets at 18:29, for a total of 11 hours 47 minutes of sunlight today.
Taken together, overcast skies in Kastamonu on September 25, 2026 favour indoor or covered options, with temperatures near 19°C.
Frequently asked questions about weather in Kastamonu
How warm does it get in Kastamonu?
The warmest month in Kastamonu is August, with average high temperatures of 28°C. The average temperature during this period is around 21°C.
How cold does it get in Kastamonu?
The coldest month in Kastamonu is January, with average low temperatures of -3°C. The average temperature during this period is around 1°C.
What is the wettest time of year in Kastamonu?
The wettest month in Kastamonu is May, with an average of 76mm of precipitation.
What is the driest time of year in Kastamonu?
The driest month in Kastamonu is August, with an average of 23mm of precipitation.