Best year time to visit Gonnana

General weather information about Gonnana

Average annual temperature is 22.9 °C

Absolute maximum temperature: 29.0 °C

Absolute minimum temperature: 11.8 °C

Number of sunny days: 13 days

Number of rainy days: 352 days

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

Gonnana air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)27.628.128.429.028.127.127.027.827.327.427.428.3
Average daytime temperature (°C)25.926.526.827.526.626.025.726.525.625.926.126.3
Average temperature (°C)21.422.322.823.523.823.523.123.422.722.822.823.0
Average night temperature (°C)16.617.718.619.521.721.921.120.821.020.319.919.8
Absolute minimum temperature (°C)11.813.116.417.320.120.720.019.520.118.017.115.4

Gonnana 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)9.49.79.99.58.47.78.210.56.57.06.77.7
Precipitation (mm)152123183178208270324140412543748503
Sunny days741000000001
Rainy days242430303130313130313030
Snow days000000000000

Gonnana - weather forecast by months

Gonnana weather in januaryGonnana weather in februaryGonnana weather in marchGonnana weather in aprilGonnana weather in mayGonnana weather in juneGonnana weather in julyGonnana weather in augustGonnana weather in septemberGonnana weather in octoberGonnana weather in novemberGonnana weather in december

Best time to visit Gonnana:

The largest precipitation sum in Gonnana is at

  • September — 412(mm)
  • October — 543(mm)
  • November — 748(mm)
  • December — 503(mm)

    • Weather forecast in the closest to Gonnana admin centers

    Weather forecast in the closest towns to Gonnana

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    Frequently asked questions

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