Weather forecast for tomorrowKalutara, Sri Lanka
Weather forecast for tomorrow
Sunday 18. Oct 2026
- 31°C
- 25°C
Mostly Cloudy
- Precip. probability: 24%
- Precipitation: 0mm
- Wind: 12km/hSW 225°
- Humidity: 80%
- UV index: 11
- Sunrise: 05:56 +0530
- Sunset: 17:54 +0530
- details ▼
On Sunday, in Kalutara, gray skies will define the day.
Rainfall is not forecasted for tomorrow. The maximum predicted temperature is a tropical 31°C, while the minimum temperature will be a temperate 25°C.
The maximum heat index, which modifies the air temperature to account for humidity, is calculated to be a blisteringly hot 41°C. Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Tomorrow, the expected maximum temperature should be consistent with October's typical high of 29.6°C.
Sunrise will be at 05:56 and sunset at 17:54; tomorrow's daylight will last for 11h and 58min.
Rainfall is not forecasted for tomorrow. The maximum predicted temperature is a tropical 31°C, while the minimum temperature will be a temperate 25°C.
The maximum heat index, which modifies the air temperature to account for humidity, is calculated to be a blisteringly hot 41°C. Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Tomorrow, the expected maximum temperature should be consistent with October's typical high of 29.6°C.
Sunrise will be at 05:56 and sunset at 17:54; tomorrow's daylight will last for 11h and 58min.
Hourly overview
Hourly temperatures
Warmest hour: 12h 38°C.
Coldest period: 3h - 6h 29°C.
Coldest period: 3h - 6h 29°C.
Chance of precipitation
Highest chance: 0h 49%.
Hourly weather forecast
- 0h
- 26°C
- Feels like:30°C
Showers
- Precip. probability: 49%
- Precipitation: 1mm
- Wind: 2km/hE 93°
- Humidity: 95%
- Pressure: 1012mbar
- Visibility: 2km
- UV index: 0
- details ▼
- 2h
- 25°C
- Feels like:29°C
Mostly Cloudy
- Precip. probability: 21%
- Precipitation: 0mm
- Wind: 2km/hE 91°
- Humidity: 96%
- Pressure: 1011mbar
- Visibility: 9km
- UV index: 0
- details ▼
- 4h
- 25°C
- Feels like:29°C
Mostly Cloudy
- Precip. probability: 18%
- Precipitation: 0mm
- Wind: 3km/hE 96°
- Humidity: 95%
- Pressure: 1011mbar
- Visibility: 9km
- UV index: 0
- details ▼
Sunrise: 05:56
- 6h
- 25°C
- Feels like:29°C
Cloudy
- Precip. probability: 9%
- Precipitation: 0mm
- Wind: 4km/hE 85°
- Humidity: 95%
- Pressure: 1012mbar
- Visibility: 10km
- UV index: 0
- details ▼
- 8h
- 28°C
- Feels like:34°C
Mostly Cloudy
- Precip. probability: 2%
- Precipitation: 0mm
- Wind: 5km/hESE 119°
- Humidity: 84%
- Pressure: 1013mbar
- Visibility: 16km
- UV index: 4
- details ▼
- 10h
- 30°C
- Feels like:37°C
Partly Cloudy
- Precip. probability: 7%
- Precipitation: 0mm
- Wind: 7km/hWSW 244°
- Humidity: 76%
- Pressure: 1013mbar
- Visibility: 16km
- UV index: 11
- details ▼
- 12h
- 31°C
- Feels like:38°C
Partly Cloudy
- Precip. probability: 6%
- Precipitation: 0mm
- Wind: 11km/hWSW 242°
- Humidity: 74%
- Pressure: 1011mbar
- Visibility: 16km
- UV index: 11
- details ▼
- 14h
- 31°C
- Feels like:38°C
Mostly Cloudy
- Precip. probability: 2%
- Precipitation: 0mm
- Wind: 12km/hWSW 244°
- Humidity: 75%
- Pressure: 1010mbar
- Visibility: 16km
- UV index: 6
- details ▼
- 16h
- 29°C
- Feels like:36°C
Cloudy
- Precip. probability: 12%
- Precipitation: 0mm
- Wind: 11km/hWSW 243°
- Humidity: 79%
- Pressure: 1010mbar
- Visibility: 16km
- UV index: 1
- details ▼
Sunset: 17:54
- 18h
- 28°C
- Feels like:33°C
Cloudy
- Precip. probability: 24%
- Precipitation: 0mm
- Wind: 8km/hSE 134°
- Humidity: 84%
- Pressure: 1011mbar
- Visibility: 15km
- UV index: 0
- details ▼
- 20h
- 27°C
- Feels like:32°C
Cloudy
- Precip. probability: 12%
- Precipitation: 0mm
- Wind: 5km/hESE 124°
- Humidity: 88%
- Pressure: 1013mbar
- Visibility: 14km
- UV index: 0
- details ▼
- 22h
- 26°C
- Feels like:31°C
Partly Cloudy
- Precip. probability: 18%
- Precipitation: 0mm
- Wind: 5km/hESE 106°
- Humidity: 92%
- Pressure: 1013mbar
- Visibility: 12km
- UV index: 0
- details ▼
Tomorrow, a combination of cloud-filled and rainy weather is anticipated.
With minimal precipitation of 1mm, rainfall is expected at midnight and 23h.
The temperature will vary between a minimum of 25°C and a maximum of 31°C. The feels-like temperature will vary between the lowest temperature of 29°C and the highest temperature of 38°C. The hottest part of the day will be from 11h to 14h.
The highest temperature will be consistent with October's average maximum of 29.6°C. Tomorrow, the minimum temperature will be also in line with the average low for October.
With minimal precipitation of 1mm, rainfall is expected at midnight and 23h.
The temperature will vary between a minimum of 25°C and a maximum of 31°C. The feels-like temperature will vary between the lowest temperature of 29°C and the highest temperature of 38°C. The hottest part of the day will be from 11h to 14h.
The highest temperature will be consistent with October's average maximum of 29.6°C. Tomorrow, the minimum temperature will be also in line with the average low for October.
Updated: Oct 17, 2026 @ 12:47:10 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
On Sunday, in Kalutara, clouds will dominate overhead, keeping the atmosphere dull.
No, it will not rain tomorrow.
Tomorrow, the maximum temperature will be 31°C, while the minimum temperature will be 25°C. The maximum heat index, which modifies the air temperature to account for humidity, is calculated to be 41°C.
Tomorrow, the highest temperature will be in line with the average maximum temperature in October. Tomorrow, the lowest temperature will be also in line with the average low temperature.
Tomorrow, the highest temperature will be in line with the average maximum temperature in October. Tomorrow, the lowest temperature will be also in line with the average low temperature.
On Sunday, in Kalutara, sunrise will be at 05:56 and sunset at 17:54 (+0530).
In Kalutara, Sri Lanka, tomorrow, there will be 11h and 58min of daylight.
