Best year time to visit Oonanagalawatta

General weather information about Oonanagalawatta

Average annual temperature is 21.6 °C

Absolute maximum temperature: 29.1 °C

Absolute minimum temperature: 14.8 °C

Number of sunny days: 29 days

Number of rainy days: 336 days

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

Oonanagalawatta air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)24.826.028.629.128.426.825.827.625.526.726.626.7
Average daytime temperature (°C)23.724.926.427.425.825.024.125.924.124.925.324.8
Average temperature (°C)20.020.922.022.722.522.121.422.021.221.521.721.7
Average night temperature (°C)16.917.518.819.320.220.119.619.419.519.419.419.5
Absolute minimum temperature (°C)14.815.118.017.718.519.518.717.918.617.918.317.4

Oonanagalawatta 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)11.711.912.112.312.512.512.512.412.212.011.811.7
Daylight minimum duration (h)11.011.011.012.012.012.012.012.012.011.011.011.0
Sunshine mean duration (h)9.29.610.110.29.410.49.210.88.77.97.77.6
Precipitation (mm)7264125170167179242103217489797322
Sunny days1373200000103
Rainy days182128283130313130303028
Snow days000000000000

Oonanagalawatta - weather forecast by months

Oonanagalawatta weather in januaryOonanagalawatta weather in februaryOonanagalawatta weather in marchOonanagalawatta weather in aprilOonanagalawatta weather in mayOonanagalawatta weather in juneOonanagalawatta weather in julyOonanagalawatta weather in augustOonanagalawatta weather in septemberOonanagalawatta weather in octoberOonanagalawatta weather in novemberOonanagalawatta weather in december

Best time to visit Oonanagalawatta:

The largest precipitation sum in Oonanagalawatta is at

  • October — 489(mm)
  • November — 797(mm)
  • December — 322(mm)

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    Frequently asked questions

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