Weather in Negombo in September

General weather information about Negombo

Average annual temperature is 26.5 °C

Absolute maximum temperature: 33.5 °C

Absolute minimum temperature: 20.2 °C

Number of sunny days: 30 days

Number of rainy days: 335 days

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

Negombo air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)30.732.733.133.530.930.529.730.430.030.431.431.9
Average daytime temperature (°C)29.630.330.930.829.829.328.929.328.428.729.530.0
Average temperature (°C)25.225.826.827.327.527.227.127.126.125.725.626.1
Average night temperature (°C)21.922.423.824.525.525.325.425.324.423.523.223.6
Absolute minimum temperature (°C)20.220.322.823.523.423.723.524.323.422.522.622.6

Negombo 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)9.59.810.510.38.99.69.910.97.47.67.77.9
Precipitation (mm)808113515623732318495506451583308
Sunny days1691100000003
Rainy days151930293130313130313028
Snow days000000000000

Negombo - weather forecast by months

Negombo weather in januaryNegombo weather in februaryNegombo weather in marchNegombo weather in aprilNegombo weather in mayNegombo weather in juneNegombo weather in julyNegombo weather in augustNegombo weather in septemberNegombo weather in octoberNegombo weather in novemberNegombo weather in december

Best time to visit Negombo:

The largest precipitation sum in Negombo is at

  • September — 506(mm)
  • October — 451(mm)
  • November — 583(mm)

    • Weather forecast in the closest to Negombo admin centers

    Weather forecast in the closest towns to Negombo

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    Frequently asked questions

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