JapanThe climate of 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.
Average temperatures and precipitation
This chart shows the average monthly maximum and minimum temperatures (in degrees Celsius) and average monthly rainfall (in millimeters) for Gunma, Japan.
Temperature records
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.
Precipitation and snowfall
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.
Find affordable vacations to 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| Precipitation |  |
|
|
|
|
|
|
|
|
|
|
|
| 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.
Popular destinations in Japan
Discover the climate of these popular destinations in Japan.
Temperature charts
These charts display the average temperatures in Gunma, Japan. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Average Temperature per Month in Gunma
Yearly Temperature in Gunma
Precipitation charts
These charts show the average amount of precipitation in Gunma, Japan. Precipitation is always measured as water, even when it falls as snow or hail. The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Average Precipitation per Month in Gunma
Total Yearly Precipitation in Gunma
Average Snowfall per Month in Gunma
Total Yearly Snowfall in Gunma
UV index chart
This chart 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.
Average UV Index per Month in Gunma
Weather experiences in Gunma
Have you been to Gunma?
Share your weather experiences in Gunma.
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.