Best year time to visit Ōnakashima

General weather information about Ōnakashima

Average annual temperature is 16.8 °C

Absolute maximum temperature: 35.4 °C

Absolute minimum temperature: -5.2 °C

Number of sunny days: 164 days

Number of rainy days: 199 days

Number of snow days: 2 days

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

Ōnakashima air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)19.816.023.024.927.729.632.435.433.328.426.522.5
Average daytime temperature (°C)10.312.316.719.622.926.030.032.029.923.017.912.7
Average temperature (°C)5.47.411.615.118.822.826.928.125.817.712.98.2
Average night temperature (°C)1.33.07.010.915.119.724.225.022.513.18.74.2
Absolute minimum temperature (°C)-5.2-2.1-1.54.77.814.421.222.419.47.42.3-3.4

Ōnakashima monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.013.012.011.010.010.0
Daylight mean duration (h)10.211.012.013.013.914.314.113.412.411.410.510.0
Daylight minimum duration (h)9.010.011.012.013.014.013.012.011.010.010.09.0
Sunshine mean duration (h)6.66.67.78.08.47.28.410.69.28.97.66.1
Precipitation (mm)8477128189265346284194116365064
Sunny days15121918148739232313
Rainy days1516121217222428218717
Snow days100000000001

Ōnakashima - weather forecast by months

Ōnakashima weather in januaryŌnakashima weather in februaryŌnakashima weather in marchŌnakashima weather in aprilŌnakashima weather in mayŌnakashima weather in juneŌnakashima weather in julyŌnakashima weather in augustŌnakashima weather in septemberŌnakashima weather in octoberŌnakashima weather in novemberŌnakashima weather in december

Best time to visit Ōnakashima:

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

  • August — 10.6(h)

The largest precipitation sum in Ōnakashima is at

  • May — 265(mm)
  • June — 346(mm)
  • July — 284(mm)
  • August — 194(mm)

    • Weather forecast in the closest to Ōnakashima admin centers

    Weather forecast in the closest towns to Ōnakashima

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    Frequently asked questions

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