Best year time to visit Gunma

General weather information about Gunma

Average annual temperature is 12.4 °C

Absolute maximum temperature: 33.8 °C

Absolute minimum temperature: -17.9 °C

Number of sunny days: 195 days

Number of rainy days: 162 days

Number of snow days: 8 days

Look at detailed online map of Gunma

* Weather data for Gunma South Korea is based on climate observations for 2026 year

Gunma air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)11.911.422.924.631.032.333.033.828.721.222.614.9
Average daytime temperature (°C)2.36.615.417.322.627.128.629.425.018.410.34.3
Average temperature (°C)-2.21.18.611.517.221.624.525.321.013.25.60.2
Average night temperature (°C)-6.1-3.12.86.412.417.421.422.117.69.11.3-3.2
Absolute minimum temperature (°C)-17.9-7.8-4.60.03.613.717.519.012.43.3-8.3-13.6

Gunma monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.014.012.011.010.09.0
Daylight mean duration (h)10.010.812.013.114.114.614.413.512.411.310.29.7
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)7.57.89.28.59.09.87.89.67.58.87.96.7
Precipitation (mm)30124266140243350235212153577
Sunny days251922161895611222022
Rainy days4591413212625199107
Snow days240000000002

Gunma - weather forecast by months

Gunma weather in januaryGunma weather in februaryGunma weather in marchGunma weather in aprilGunma weather in mayGunma weather in juneGunma weather in julyGunma weather in augustGunma weather in septemberGunma weather in octoberGunma weather in novemberGunma weather in december

Best time to visit Gunma:

The largest precipitation sum in Gunma is at

  • June — 243(mm)
  • July — 350(mm)
  • August — 235(mm)
  • September — 212(mm)

    • Weather forecast in the closest to Gunma admin centers

    Weather forecast in the closest towns to Gunma

    Explore Gunma

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    Frequently asked questions

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