Best year time to visit Opatha South

General weather information about Opatha South

Average annual temperature is 25.9 °C

Absolute maximum temperature: 33.3 °C

Absolute minimum temperature: 18.7 °C

Number of sunny days: 10 days

Number of rainy days: 355 days

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

Opatha South air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)31.032.632.733.331.530.930.431.230.831.631.831.5
Average daytime temperature (°C)29.530.431.031.430.029.529.330.128.829.029.829.7
Average temperature (°C)24.725.326.026.626.726.326.226.625.525.425.525.7
Average night temperature (°C)21.021.422.323.024.224.123.824.023.423.122.923.0
Absolute minimum temperature (°C)18.918.720.420.522.523.022.522.722.622.321.521.8

Opatha South 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)11.811.912.112.312.412.512.412.312.212.011.811.8
Daylight minimum duration (h)11.011.012.012.012.012.012.012.012.011.011.011.0
Sunshine mean duration (h)9.09.29.79.98.39.58.810.66.55.96.87.2
Precipitation (mm)157180208179239215244152639606600478
Sunny days621000000001
Rainy days252630303130313130313030
Snow days000000000000

Opatha South - weather forecast by months

Opatha South weather in januaryOpatha South weather in februaryOpatha South weather in marchOpatha South weather in aprilOpatha South weather in mayOpatha South weather in juneOpatha South weather in julyOpatha South weather in augustOpatha South weather in septemberOpatha South weather in octoberOpatha South weather in novemberOpatha South weather in december

Best time to visit Opatha South:

The best time to visit Opatha South during the most sunny months:

  • August — 10.6(h)

The largest precipitation sum in Opatha South is at

  • September — 639(mm)
  • October — 606(mm)
  • November — 600(mm)
  • December — 478(mm)

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    Frequently asked questions

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