Best year time to visit Osai

General weather information about Osai

Average annual temperature is 21.3 °C

Absolute maximum temperature: 30.6 °C

Absolute minimum temperature: 6.6 °C

Number of sunny days: 114 days

Number of rainy days: 251 days

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

Osai air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)23.022.023.724.927.728.530.130.330.629.727.824.3
Average daytime temperature (°C)17.018.219.822.124.126.929.228.829.326.222.519.5
Average temperature (°C)14.815.917.419.721.924.627.326.926.823.119.716.8
Average night temperature (°C)13.014.215.417.820.122.925.625.224.920.617.614.8
Absolute minimum temperature (°C)6.611.010.613.215.820.323.723.323.117.212.610.0

Osai 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)10.611.212.012.813.513.913.713.112.311.510.810.4
Daylight minimum duration (h)10.010.011.012.013.013.013.012.011.011.010.010.0
Sunshine mean duration (h)6.36.37.88.58.67.410.89.210.99.28.86.1
Precipitation (mm)8990207258164545152431938741121
Sunny days181499113000181814
Rainy days131422212027313130131217
Snow days000000000000

Osai - weather forecast by months

Osai weather in januaryOsai weather in februaryOsai weather in marchOsai weather in aprilOsai weather in mayOsai weather in juneOsai weather in julyOsai weather in augustOsai weather in septemberOsai weather in octoberOsai weather in novemberOsai weather in december

Best time to visit Osai:

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

  • July — 10.8(h)
  • September — 10.9(h)

The largest precipitation sum in Osai is at

  • April — 258(mm)
  • June — 545(mm)
  • August — 431(mm)

    • Weather forecast in the closest to Osai admin centers

    Weather forecast in the closest towns to Osai

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    Frequently asked questions

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