Weather in Onna in August

General weather information about Onna

Average annual temperature is 23.1 °C

Absolute maximum temperature: 33.0 °C

Absolute minimum temperature: 8.7 °C

Number of sunny days: 93 days

Number of rainy days: 272 days

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* Weather data for Onna Japan is based on climate observations for 2026 year

Onna air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)24.524.125.826.428.630.633.032.731.930.928.326.1
Average daytime temperature (°C)18.920.221.623.925.528.431.130.230.828.424.621.3
Average temperature (°C)16.918.119.221.623.326.428.727.828.025.422.019.1
Average night temperature (°C)15.216.617.119.921.624.926.825.925.923.220.117.5
Absolute minimum temperature (°C)8.713.811.714.517.222.824.524.324.218.917.112.6

Onna monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.013.013.013.013.012.011.011.010.0
Daylight mean duration (h)10.711.312.012.813.413.813.613.112.311.510.910.5
Daylight minimum duration (h)10.010.011.012.013.013.013.012.011.011.010.010.0
Sunshine mean duration (h)6.86.78.08.88.78.811.69.410.610.08.85.1
Precipitation (mm)775012599149268121772907094239
Sunny days1510511116001131110
Rainy days161826192024313129181921
Snow days000000000000

Onna - weather forecast by months

Onna weather in januaryOnna weather in februaryOnna weather in marchOnna weather in aprilOnna weather in mayOnna weather in juneOnna weather in julyOnna weather in augustOnna weather in septemberOnna weather in octoberOnna weather in novemberOnna weather in december

Best time to visit Onna:

The best time to visit Onna during the most sunny months:

  • July — 11.6(h)

The largest precipitation sum in Onna is at

  • June — 268(mm)
  • August — 772(mm)
  • December — 239(mm)

    • Weather forecast in the closest to Onna admin centers

    Weather forecast in the closest towns to Onna

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    Frequently asked questions

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