Best year time to visit Ōnan Chō

General weather information about Ōnan Chō

Average annual temperature is 14.0 °C

Absolute maximum temperature: 33.8 °C

Absolute minimum temperature: -8.1 °C

Number of sunny days: 126 days

Number of rainy days: 222 days

Number of snow days: 17 days

Look at detailed online map of Ōnan Chō

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

Ōnan Chō air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)15.014.522.025.229.229.233.333.830.924.124.318.2
Average daytime temperature (°C)6.47.714.917.321.725.329.730.627.519.915.19.2
Average temperature (°C)2.53.39.012.116.420.224.925.923.014.810.35.0
Average night temperature (°C)-0.4-0.44.47.912.516.621.622.920.211.16.62.0
Absolute minimum temperature (°C)-7.2-8.1-3.43.07.410.216.521.115.26.61.3-3.3

Ōnan Chō monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.013.012.011.010.09.0
Daylight mean duration (h)10.110.912.013.114.014.514.213.412.411.310.49.9
Daylight minimum duration (h)9.010.011.012.013.014.013.012.011.010.010.09.0
Sunshine mean duration (h)5.85.98.07.88.37.68.99.68.38.26.85.5
Precipitation (mm)91102922202042312321551042666132
Sunny days101018151310722161310
Rainy days121413151820242928151717
Snow days940000000004

Ōnan Chō - weather forecast by months

Ōnan Chō weather in januaryŌnan Chō weather in februaryŌnan Chō weather in marchŌnan Chō weather in aprilŌnan Chō weather in mayŌnan Chō weather in juneŌnan Chō weather in julyŌnan Chō weather in augustŌnan Chō weather in septemberŌnan Chō weather in octoberŌnan Chō weather in novemberŌnan Chō weather in december

Best time to visit Ōnan Chō:

The best time to visit Ōnan Chō during the most sunny months:

  • August — 9.6(h)

The largest precipitation sum in Ōnan Chō is at

  • April — 220(mm)
  • May — 204(mm)
  • June — 231(mm)
  • July — 232(mm)

    • Weather forecast in the closest to Ōnan Chō admin centers

    Weather forecast in the closest towns to Ōnan Chō

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    Frequently asked questions

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