Best year time to visit Ōtawa

General weather information about Ōtawa

Average annual temperature is 17.5 °C

Absolute maximum temperature: 32.0 °C

Absolute minimum temperature: -1.5 °C

Number of sunny days: 172 days

Number of rainy days: 192 days

Number of snow days: 1 day

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

Ōtawa air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)15.817.522.120.823.927.131.432.031.328.724.221.6
Average daytime temperature (°C)9.411.015.318.220.323.928.329.928.221.818.013.2
Average temperature (°C)6.98.112.715.918.322.026.227.726.119.215.510.5
Average night temperature (°C)4.45.210.013.516.220.124.526.024.316.612.87.6
Absolute minimum temperature (°C)-1.51.45.28.812.116.421.924.819.313.37.62.9

Ōtawa 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)10.110.912.013.114.014.514.313.512.411.310.39.8
Daylight minimum duration (h)9.010.011.012.013.014.013.012.011.010.09.09.0
Sunshine mean duration (h)6.97.27.89.08.67.610.911.59.68.87.67.8
Precipitation (mm)4066147130161275671551571517144
Sunny days1512151515918109161523
Rainy days16151615162113212115158
Snow days010000000000

Ōtawa - weather forecast by months

Ōtawa weather in januaryŌtawa weather in februaryŌtawa weather in marchŌtawa weather in aprilŌtawa weather in mayŌtawa weather in juneŌtawa weather in julyŌtawa weather in augustŌtawa weather in septemberŌtawa weather in octoberŌtawa weather in novemberŌtawa weather in december

Best time to visit Ōtawa:

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

  • July — 10.9(h)
  • August — 11.5(h)

The largest precipitation sum in Ōtawa is at

  • May — 161(mm)
  • June — 275(mm)
  • August — 155(mm)
  • September — 157(mm)

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    Frequently asked questions

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