See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
26°
Rain
Feels Like: 32°
Min: 24°
Max: 26°
The next few hours will be humid and overcast, with today reaching 26°C and dropping to 23°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
06:02
Sunrise
18:00
Sunset
Moon
Waxing Gibbous
17:06
Moonrise
05:25
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 Kolonnawa.
Resources
UV Index
Humidity
Current stargazing conditions?
See sky darkness, moon phase, and the best viewing window for Kolonnawa.
View stargazing scoreWeather in Kolonnawa today, September 25, 2026
Kolonnawa looks damp on September 25, 2026, so plan for wet spells during the day. Early travel and outdoor time should assume rain can arrive quickly. Morning plans should assume damp conditions, as rain chances climb toward 100% around 09:00. Cloud cover is also at its densest near 09:00 at roughly 100%.
Temperatures climb from an overnight low near 24°C toward a daytime high of about 26°C. Moisture in the air spans 88%-98%, with the highest values around 23:00. Airflow remains manageable, reaching about 3.8 km/h around 12:00.
Expect the wet theme to continue later, as rain odds reach 98% near 12:00. Cloud amounts hold near 100% around 12:00. Visibility stays generally good near 14.4 km on average, though it can drop toward 7.9 km in thicker cloud or showers. Expect sunrise at 06:02, sunset at 18:00, and 11 hours 58 minutes of sunlight today overall.
Overall, Kolonnawa on September 25, 2026 suits indoor plans or waterproof kit, especially while rain chances stay near 100% and the high sits around 26°C.
Frequently asked questions about weather in Kolonnawa
How warm does it get in Kolonnawa?
The warmest month in Kolonnawa is March, with average high temperatures of 34°C. The average temperature during this period is around 29°C.
How cold does it get in Kolonnawa?
The coldest month in Kolonnawa is January, with average low temperatures of 23°C. The average temperature during this period is around 27°C.
What is the wettest time of year in Kolonnawa?
The wettest month in Kolonnawa is November, with an average of 405mm of precipitation.
What is the driest time of year in Kolonnawa?
The driest month in Kolonnawa is February, with an average of 50mm of precipitation.
Explore more weather forecasts
- Kotikawatta, Western Province
- Colombo, Western Province
- Peliyagoda, Western Province
- Dehiwala-Mount Lavinia, Western Province
- Maharagama, Western Province
- Kelaniya, Western Province
- Jaffna, Northern Province
- Mulleriyawa, Western Province
- Moratuwa, Western Province
- Pita Kotte, Western Province
- Negombo, Western Province
- Battaramulla South, Western Province
- Sri Jayewardenepura Kotte, Western Province