Weather forecast for tomorrow
Colombo, Sri Lanka

Weather forecast for tomorrow

Wednesday, Jun 18.

Scattered Thunderstorms
05:54

18:28
+0530
Scattered Thunderstorms
86°F / 79°F
  • Wind: 9mph SW
  • Humidity: 85%
  • Precip. probability: 47%
  • Precipitation: 0.16"
  • UV index: 8
Tomorrow, on Wednesday, 18th of June, scattered thunderstorms are likely, with brief breaks between the stormy periods.
With a low probability, light precipitation is expected. The peak daytime temperature will reach a hot 30°C, while the nighttime temperature will drop to a warm 26°C.
The maximum heat index, which combines relative humidity and air temperature, is computed to be a steamy 39°C. Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
The high is expected to coincide with June's normal of 29.3°C.
Sunrise will be at 05:54 and sunset at 18:28; tomorrow's daylight will last for 12h and 34min.

Frequently asked questions

What is the weather forecast for Colombo for tomorrow?
On Wednesday, in Colombo, scattered thunderstorms are expected, and a few may bring strong wind gusts.
Will it rain tomorrow?
Light precipitation of 4mm is forecasted. The chance of rainfall is 47%.
What will be the highest temperature in Colombo tomorrow?
Tomorrow, the highest temperature will be 30°C, while the lowest temperature will be 26°C. The maximum heat index, which measures the combined effect of heat and moisture, is computed to be 39°C.
The maximum temperature will be in line with the average highest temperature of 29.3°C in June. The lowest temperature will be also in line with the average low of 25.8°C.
When are sunrise and sunset tomorrow in Colombo?
On Wednesday, in Colombo, sunrise will be at 05:54 and sunset at 18:28 (+0530).
How long will the day be tomorrow?
In Colombo, the length of the day tomorrow will be 12h and 34min.

Hourly weather forecast

0h
  • 81°F
  • Feels like:
    90°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 4mph SSW
  • Pressure: 29.83"Hg
  • Humidity: 90%
  • Precip. probability: 24%
  • Precipitation: 0"
  • Visibility: 9mi
2h
  • 81°F
  • Feels like:
    90°F
Showers
Showers
  • Wind: 5mph SSW
  • Pressure: 29.8"Hg
  • Humidity: 91%
  • Precip. probability: 41%
  • Precipitation: 0.04"
  • Visibility: 7mi
4h
  • 81°F
  • Feels like:
    88°F
Showers
Showers
  • Wind: 4mph SW
  • Pressure: 29.8"Hg
  • Humidity: 91%
  • Precip. probability: 44%
  • Precipitation: 0.04"
  • Visibility: 7mi
Sunrise: 05:54
6h
  • 81°F
  • Feels like:
    90°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 5mph SW
  • Pressure: 29.83"Hg
  • Humidity: 92%
  • Precip. probability: 40%
  • Precipitation: 0.04"
  • Visibility: 7mi
8h
  • 82°F
  • Feels like:
    93°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 6mph SW
  • Pressure: 29.85"Hg
  • Humidity: 87%
  • Precip. probability: 48%
  • Precipitation: 0.04"
  • Visibility: 7mi
10h
  • 84°F
  • Feels like:
    97°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 7mph SW
  • Pressure: 29.85"Hg
  • Humidity: 82%
  • Precip. probability: 23%
  • Precipitation: 0"
  • Visibility: 10mi
12h
  • 84°F
  • Feels like:
    97°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 8mph SW
  • Pressure: 29.83"Hg
  • Humidity: 82%
  • Precip. probability: 22%
  • Precipitation: 0"
  • Visibility: 10mi
14h
  • 84°F
  • Feels like:
    97°F
Showers
Showers
  • Wind: 9mph SW
  • Pressure: 29.77"Hg
  • Humidity: 82%
  • Precip. probability: 46%
  • Precipitation: 0.04"
  • Visibility: 7mi
16h
  • 84°F
  • Feels like:
    95°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 9mph WSW
  • Pressure: 29.77"Hg
  • Humidity: 84%
  • Precip. probability: 8%
  • Precipitation: 0"
  • Visibility: 10mi
18h
  • 82°F
  • Feels like:
    93°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 7mph SW
  • Pressure: 29.8"Hg
  • Humidity: 87%
  • Precip. probability: 24%
  • Precipitation: 0"
  • Visibility: 10mi
Sunset: 18:28
20h
  • 82°F
  • Feels like:
    91°F
Few Showers
Few Showers
  • Wind: 7mph SW
  • Pressure: 29.83"Hg
  • Humidity: 89%
  • Precip. probability: 30%
  • Precipitation: 0.04"
  • Visibility: 9mi
22h
  • 82°F
  • Feels like:
    91°F
Few Showers
Few Showers
  • Wind: 7mph SW
  • Pressure: 29.85"Hg
  • Humidity: 89%
  • Precip. probability: 32%
  • Precipitation: 0.04"
  • Visibility: 9mi
Tomorrow, a combination of dull, showery and unstable weather is expected.
Rainfall is anticipated from 2h to 4h, and from 6h to 9h, 11h, 13h, 14h, and from 20h to 23h. With light precipitation of 2mm, most rainfall is expected at 11h.
The temperature difference throughout the day will be indistinguishable, with a minimum of 27°C and a maximum of 29°C. The feels-like temperature will be between a minimum of 31°C and a maximum of 36°C. The hottest part of the day will be from 9h to 16h.
The highest temperature will be alike with June's average maximum of 29.3°C. The lowest temperature is also similar to June's typical minimum of 25.8°C.
Updated: Jun 16, 2025 @ 19:54:15 UTC
Published by: Weather Atlas | About Us
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