Weather in Colombo District in September

General weather information about Colombo District

Average annual temperature is 25.8 °C

Absolute maximum temperature: 33.5 °C

Absolute minimum temperature: 18.9 °C

Number of sunny days: 17 days

Number of rainy days: 348 days

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* Weather data for Colombo District Sri Lanka is based on climate observations for 2026 year

Colombo District air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)31.833.532.332.931.230.229.930.430.430.930.932.2
Average daytime temperature (°C)30.130.430.931.529.929.329.029.528.629.129.629.9
Average temperature (°C)24.925.426.126.726.626.326.326.525.425.225.225.5
Average night temperature (°C)20.921.622.523.224.223.723.924.123.322.722.522.7
Absolute minimum temperature (°C)18.920.020.722.022.423.022.423.122.521.521.722.0

Colombo District monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)11.011.012.012.012.012.012.012.012.012.011.011.0
Daylight mean duration (h)11.811.912.112.312.412.512.512.312.212.011.811.7
Daylight minimum duration (h)11.011.011.012.012.012.012.012.012.011.011.011.0
Sunshine mean duration (h)9.49.710.210.38.48.89.510.76.77.07.27.7
Precipitation (mm)118124193192247438307179599655577491
Sunny days1141000000100
Rainy days202430303130313130303031
Snow days000000000000

Colombo District - weather forecast by months

Colombo District weather in januaryColombo District weather in februaryColombo District weather in marchColombo District weather in aprilColombo District weather in mayColombo District weather in juneColombo District weather in julyColombo District weather in augustColombo District weather in septemberColombo District weather in octoberColombo District weather in novemberColombo District weather in december

Best time to visit Colombo District:

The largest precipitation sum in Colombo District is at

  • June — 438(mm)
  • September — 599(mm)
  • October — 655(mm)
  • November — 577(mm)
  • December — 491(mm)

    • Weather forecast in the closest to Colombo District admin centers

    Weather forecast in the closest towns to Colombo District

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    Frequently asked questions

    When is the best time to visit Colombo District?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Colombo District.
    What is the weather like in Colombo District?
    See average temperature, rainfall and daylight hours for Colombo District by month in the table above.
    How many sunny days does Colombo District have?
    The monthly weather statistics above show sunshine and rainfall patterns for Colombo District throughout the year.