Gunma (Kusatsu)
December
Weather in Gunma for December 2026
Your guide to Gunma weather in December - trends and predictions
Gunma typically experiences moderate snowfall in December, with an average of 8 snowy days.
In general, the average temperature in Gunma at the beginning of December is 6.8 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 3.4 °C by the end of December.
Is December a good time to visit Gunma? check out the best time to travel to Gunma page.
✨ Is December a good time to visit Gunma? – Ask the AI Weatherman
Snow Forecast ❄️
Temperatures
More
20
Dry days
3
Rainy days
8
Snow days
4°/-3°
Temperatures
13 km/h
Avg max wind
69 %
Avg humidity
Gunma Weather December
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What’s the Weather Like in Gunma This December?
Discover the average temperatures and weather trends across Gunma’s cities this December.
Temperatures trend during December in Gunma
See the weather trend as well as the moving average line
December weather in Gunma day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Dec. |  Sunny | 11° /1° | 0 mm | 0 cm | |
| 2 Dec. |  Overcast | 10° /3° | 0 mm | 0 cm | |
| 3 Dec. | Sunny | 10° /-1° | 0.6 mm | 0.2 cm | |
| 4 Dec. |  Patchy rain possible | 5° /-2° | 0.7 mm | 0.4 cm | |
| 5 Dec. | Sunny | 4° /-2° | 0.5 mm | 0.2 cm | |
| 6 Dec. |  Light sleet | 5° /-2° | 0.5 mm | 0 cm | |
| 7 Dec. |  Light snow | 4° /-3° | 1.7 mm | 1.2 cm | |
| 8 Dec. | Light snow | 4° /-3° | 1 mm | 0.6 cm | |
| 9 Dec. | Sunny | 5° /-2° | 0 mm | 0 cm | |
| 10 Dec. | Sunny | 7° /-1° | 0 mm | 0 cm | |
| 11 Dec. | Patchy rain possible | 7° /0° | 0.9 mm | 0.1 cm | |
| 12 Dec. |  Light rain | 2° /-3° | 2.7 mm | 0.5 cm | |
| 13 Dec. | Sunny | 3° /-4° | 0 mm | 0 cm | |
| 14 Dec. | Light snow | 5° /-2° | 2.3 mm | 1.5 cm | |
| 15 Dec. | Light rain | 5° /-3° | 2.3 mm | 0.6 cm | |
| 16 Dec. | Light rain | 7° /0° | 5 mm | 0 cm | |
| 17 Dec. | Patchy rain possible | 5° /-2° | 0.2 mm | 0 cm | |
| 18 Dec. | Sunny | 1° /-4° | 0.1 mm | 0.1 cm | |
| 19 Dec. |  Cloudy | 3° /-4° | 0.1 mm | 0 cm | |
| 20 Dec. | Sunny | 6° /-3° | 0 mm | 0 cm | |
| 21 Dec. | Patchy rain possible | 6° /-2° | 1.9 mm | 0.2 cm | |
| 22 Dec. |  Light snow showers | 0° /-5° | 2.1 mm | 1.4 cm | |
| 23 Dec. | Sunny | 1° /-6° | 0.3 mm | 0 cm | |
| 24 Dec. | Light snow | 1° /-4° | 2.3 mm | 1.5 cm | |
| 25 Dec. | Light rain | 4° /-2° | 2.5 mm | 0 cm | |
| 26 Dec. | Patchy rain possible | 4° /-4° | 1.3 mm | 0.8 cm | |
| 27 Dec. |  Light freezing rain | 0° /-6° | 0.4 mm | 0.1 cm | |
| 28 Dec. | Sunny | 2° /-5° | 0.8 mm | 0.5 cm | |
| 29 Dec. | Sunny | 4° /-3° | 0.2 mm | 0.1 cm | |
| 30 Dec. |  Partly cloudy | 5° /-3° | 0.1 mm | 0 cm | |
| 31 Dec. | Light drizzle | 5° /-3° | 1.5 mm | 0.2 cm | |
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Important Notice
Our weather forecast for Gunma in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Gunma forecast closer to your planned date for the most up-to-date weather information.
Change Month
Gunma weather in December vs November vs January
Compare December weather in Gunma with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
| November | December | January | |
|---|---|---|---|
| Weather | Patchy rain possible | Sunny |  Moderate snow |
| Temperatures | 10°/2° | 4°/-3° | 2°/-5° |
| Rainfall | 33 mm | 32 mm | 35 mm |
| Snowfall | 1 cm | 10 cm | 22 cm |
| Wind | 10.9 km/h | 13.2 km/h | 13.6 km/h |
| Humidity | 74% | 69% | 66% |
| Rainy days | 5 days | 3 days | 0 days |
| Snow days | 2 days | 8 days | 12 days |
| Dry days | 23 days | 20 days | 19 days |
Planning a trip to Gunma? Discover the best time to visit
Gunma in December - FAQ
What are the expected maximum and minimum temperatures in Gunma during December?
Brace for cold days with temperatures not exceeding 4° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Gunma during December?
In December, Gunma can expect light to moderate rainfall, totaling 32 mm across approximately 3 days. Occasional showers are possible, and planning ahead for them could be helpful.
Will it snow in Gunma in December 2026?
Gunma experiences an average snowfall of 10.3 cm during December, occurring over 8 days.
What are the typical wind conditions in Gunma during December?
The average wind speed in Gunma during December is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
Gunma snow forecast December 2026
Track daily snowfall levels and discover Gunma’s snowy potential this December ❄️
On average, Gunma sees 8 snowy days during December, with approximately 10.3 cm of total snowfall.
December rainfall patterns in Gunma
Explore the daily rainfall trends and prepare for Gunmas December weather 💧
Typically, Gunma has 3 rainy days in December with a total of 32 mm of rainfall.
What to pack to Gunma in December?
Cold & raw · highs around 4 °C, mostly dry
As you prepare for your trip to Gunma in December, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Gunma, during December, is comfortable and enjoyable, regardless of the weather conditions.
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