Weather in Ōmu in September

General weather information about Ōmu

Average annual temperature is 8.3 °C

Absolute maximum temperature: 32.8 °C

Absolute minimum temperature: -16.2 °C

Number of sunny days: 105 days

Number of rainy days: 189 days

Number of snow days: 71 days

Look at detailed online map of Ōmu

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

Ōmu air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)6.17.314.718.125.328.031.032.827.322.119.411.5
Average daytime temperature (°C)-4.3-2.86.510.716.620.923.825.922.915.58.5-0.3
Average temperature (°C)-7.5-5.82.26.411.816.820.622.618.911.64.7-3.2
Average night temperature (°C)-10.3-8.5-0.93.58.213.718.120.415.68.61.6-6.2
Absolute minimum temperature (°C)-16.2-13.8-7.5-5.11.04.711.515.78.32.7-7.6-13.4

Ōmu monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.310.411.913.514.815.515.214.012.511.09.68.9
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.09.08.0
Sunshine mean duration (h)6.55.88.37.510.19.88.17.67.97.45.64.5
Precipitation (mm)296749133451475819914613312163
Sunny days74168121096101058
Rainy days031121192022252021198
Snow days242141000000615

Ōmu - weather forecast by months

Ōmu weather in januaryŌmu weather in februaryŌmu weather in marchŌmu weather in aprilŌmu weather in mayŌmu weather in juneŌmu weather in julyŌmu weather in augustŌmu weather in septemberŌmu weather in octoberŌmu weather in novemberŌmu weather in december

Best time to visit Ōmu:

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

  • May — 10.1(h)
  • June — 9.8(h)

Months with the longest average daylight duration in Ōmu:

  • June — 15.5(h)

The largest precipitation sum in Ōmu is at

  • April — 133(mm)
  • June — 147(mm)
  • August — 199(mm)
  • September — 146(mm)
  • October — 133(mm)

    • Weather forecast in the closest to Ōmu admin centers

    Weather forecast in the closest towns to Ōmu

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    Frequently asked questions

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