Best year time to visit Sewanagama

General weather information about Sewanagama

Average annual temperature is 20.2 °C

Absolute maximum temperature: 30.3 °C

Absolute minimum temperature: 10.5 °C

Number of sunny days: 32 days

Number of rainy days: 333 days

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

Sewanagama air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)23.124.125.526.228.127.829.130.325.824.524.023.9
Average daytime temperature (°C)21.922.723.724.725.126.626.327.524.323.223.122.7
Average temperature (°C)18.018.819.420.221.122.021.822.020.519.719.619.6
Average night temperature (°C)14.414.715.615.917.217.917.817.117.616.816.617.1
Absolute minimum temperature (°C)10.511.114.714.215.016.215.515.315.714.314.715.0

Sewanagama 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)9.49.39.610.08.910.49.610.98.06.87.17.2
Precipitation (mm)801271131261549281105243436597394
Sunny days763331520002
Rainy days242228272829262930313029
Snow days000000000000

Sewanagama - weather forecast by months

Sewanagama weather in januarySewanagama weather in februarySewanagama weather in marchSewanagama weather in aprilSewanagama weather in maySewanagama weather in juneSewanagama weather in julySewanagama weather in augustSewanagama weather in septemberSewanagama weather in octoberSewanagama weather in novemberSewanagama weather in december

Best time to visit Sewanagama:

The largest precipitation sum in Sewanagama is at

  • October — 436(mm)
  • November — 597(mm)
  • December — 394(mm)

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    Frequently asked questions

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