Best year time to visit Sanmonchō

General weather information about Sanmonchō

Average annual temperature is 16.8 °C

Absolute maximum temperature: 34.3 °C

Absolute minimum temperature: -4.0 °C

Number of sunny days: 150 days

Number of rainy days: 212 days

Number of snow days: 3 days

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

Sanmonchō air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)16.715.922.725.227.829.733.034.333.726.427.223.3
Average daytime temperature (°C)9.410.716.018.922.525.930.331.729.522.918.112.4
Average temperature (°C)5.97.111.414.618.522.527.028.425.618.313.58.5
Average night temperature (°C)3.03.57.310.915.119.724.225.422.614.59.75.4
Absolute minimum temperature (°C)-4.0-1.3-1.05.38.015.420.223.519.89.13.60.3

Sanmonchō 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)10.211.012.013.013.914.414.213.412.411.310.49.9
Daylight minimum duration (h)9.010.011.012.013.014.013.012.011.010.010.09.0
Sunshine mean duration (h)6.26.48.28.08.77.79.110.59.18.47.35.5
Precipitation (mm)11592104183272259242143116256159
Sunny days13121716148758211613
Rainy days181614141722242622101415
Snow days000000000003

Sanmonchō - weather forecast by months

Sanmonchō weather in januarySanmonchō weather in februarySanmonchō weather in marchSanmonchō weather in aprilSanmonchō weather in maySanmonchō weather in juneSanmonchō weather in julySanmonchō weather in augustSanmonchō weather in septemberSanmonchō weather in octoberSanmonchō weather in novemberSanmonchō weather in december

Best time to visit Sanmonchō:

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

  • August — 10.5(h)

The largest precipitation sum in Sanmonchō is at

  • April — 183(mm)
  • May — 272(mm)
  • June — 259(mm)
  • July — 242(mm)

    • Weather forecast in the closest to Sanmonchō admin centers

    Weather forecast in the closest towns to Sanmonchō

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    Frequently asked questions

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