What’s the climate like in Gunma?
The current climate in Gunma features temperatures ranging from a high of 32°C to a low of 10°C throughout the year. The average yearly temperature is around 21°C. At night, temperatures in the colder months average around 0°C and in the warmer months around 24°C.
The highest temperature recorded in Gunma in recent years was 40°C in June 2022. The lowest daytime temperature recorded was 0°C in February 2014.
On average, Gunma gets 1387 mm of precipitation each year. Of this, about 31 cm is snowfall. For comparison, New York gets 1142 mm of precipitation each year.
The typhoon season in Gunma runs from June to November.
Curious about the weather in other parts of Japan? Check out the climate and weather for spots like Tokyo, Kyōto, Osaka, or explore other destinations in Japan.
Best time to visit Gunma?
The best time to visit Gunma for mild to warm weather is March up to May and November. You might get some rain, but the temperatures are just right to explore Gunma.
Climate Table of Gunma
The climate table of Gunma shows the average temperatures, rainfall, snow, and UV index per month. The table provides an overview of the average day and night temperatures in degrees Celsius, the total amount of rainfall in millimeters, the total snowfall in centimeters, and the UV index for each month. Rainfall is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 10 | 10 | 15 | 20 | 25 | 27 | 31 | 32 | 27 | 22 | 17 | 12 |
| Temp. min (°C) | 1 | 1 | 6 | 10 | 15 | 19 | 23 | 25 | 21 | 15 | 9 | 3 |
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| Precipitation (mm) | 32 | 28 | 98 | 68 | 85 | 194 | 207 | 184 | 209 | 195 | 52 | 35 |
| Snow (cm) | 7,2 | 18 | 2,9 | 0,3 | 0 | 0 | 0 | 0 | 0 | 0 | 0,5 | 1,2 |
| UV Index | 4 | 5 | 6 | 7 | 7 | 6 | 6 | 6 | 5 | 4 | 4 | 4 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
- Average yearly temperature: 21°C
- Highest temperature: 32°C in August
- Lowest temperature: 10°C in January and February
- Precipitation*: 1387 mm per year, averaging 116 mm per month
- Snowfall: 31 cm per year
- Driest months: 28 mm in February, 32 mm in January and 35 mm in December
- Wettest months: 209 mm in September, 207 mm in July and 195 mm in October
*Precipitation is measured as a combination of rain, snow, and hail
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Table of Contents
Average Temperature per Month in Gunma
This graph shows the average maximum temperatures per month in Gunma, Japan. The temperatures are shown in degrees Celsius and the average is calculated based on the recorded temperatures per month from past years.
Average Precipitation per Month in Gunma
This graph shows how much rainfall Gunma, Japan, gets on average per month. Rainfall is always measured as water, even if it's snow or hail. This makes it easy to compare how much has fallen, regardless of the form of precipitation. The amount of rainfall is measured in millimeters, and the average is calculated based on the recorded rainfall per month from past years.
Average Snowfall per Month in Gunma
This graph shows how much snow Gunma, Japan, gets on average per month. The amount of snowfall is measured in centimeters and the average is calculated based on the recorded snowfall per month from past years.
Average UV Index per Month in Gunma
This graph shows the average UV index per month in Gunma, Japan. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Yearly Temperature in Gunma
This graph shows the average yearly temperature in Gunma, Japan. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in Gunma
This chart shows the total yearly precipitation in Gunma, Japan, over the past few years. The total yearly precipitation, measured in millimeters, is the sum of all the rain that fell in the twelve months of that year.
Total Yearly Snowfall in Gunma
This chart shows the total yearly snowfall in Gunma, Japan, over the past few years. The total yearly snowfall, measured in centimeters, is the sum of all the snow that fell in the twelve months of that year.
Weather experiences in Gunma
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Average Weather in Gunma by Month
Click on a month below to see detailed weather info for Gunma. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
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