Best year time to visit Onegama

General weather information about Onegama

Average annual temperature is 27.4 °C

Absolute maximum temperature: 39.1 °C

Absolute minimum temperature: 18.1 °C

Number of sunny days: 59 days

Number of rainy days: 306 days

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

Onegama air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)29.531.033.935.736.936.638.139.136.933.531.731.2
Average daytime temperature (°C)28.329.231.233.633.335.234.937.234.131.730.029.2
Average temperature (°C)24.224.926.427.828.430.229.930.528.726.525.625.5
Average night temperature (°C)20.821.522.923.925.226.926.626.225.423.523.023.0
Absolute minimum temperature (°C)18.119.321.922.623.625.725.424.923.622.522.521.7

Onegama 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)11.711.912.112.312.512.612.512.412.211.911.811.7
Daylight minimum duration (h)11.011.011.012.012.012.012.012.012.011.011.011.0
Sunshine mean duration (h)9.09.310.110.59.310.89.710.99.78.77.27.2
Precipitation (mm)16412210010111921286096288509370
Sunny days973678982000
Rainy days222128242422222328313031
Snow days000000000000

Onegama - weather forecast by months

Onegama weather in januaryOnegama weather in februaryOnegama weather in marchOnegama weather in aprilOnegama weather in mayOnegama weather in juneOnegama weather in julyOnegama weather in augustOnegama weather in septemberOnegama weather in octoberOnegama weather in novemberOnegama weather in december

Best time to visit Onegama:

The largest precipitation sum in Onegama is at

  • October — 288(mm)
  • November — 509(mm)
  • December — 370(mm)

    • Weather forecast in the closest to Onegama admin centers

    Weather forecast in the closest towns to Onegama

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    Frequently asked questions

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