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Weather in Gunma for October 2026

Your guide to Gunma weather in October - trends and predictions

    Temperatures

  • So far, October 2026 in Gunma is slightly warmer than the historical average by 1.3 °C.

  • The forecast for the upcoming days in Gunma predicts a temperature of 13.9 °C, which is slightly above the historical average.

  • In general, the average temperature in Gunma at the beginning of October is 18.2 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 12.5 °C by the end of October.

    • Rain 🌧️

  • The climate of Gunma in October is notably wet, with an average of 12 rainy days, and a total of 109.4 mm of precipitation.

    • More

  • Is October a good time to visit Gunma? check out the best time to travel to Gunma page.

  • ✨ Is October a good time to visit Gunma? – Ask the AI Weatherman

Average dry days
19
Dry days
Average rainy days
12
Rainy days
Average snowy days
0
Snow days
Average temperatures
16°/9°
Temperatures
Average wind speed
9 km/h
Avg max wind
Average humidity
83 %
Avg humidity

Gunma Weather October

Move between months or click on a day
September
November
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Light rain
20°
2
Patchy rain possible
20°
3
Light rain shower
17°
4
Light rain
16°
5
Light rain shower
18°
6
Patchy rain possible
19°
7
Patchy rain possible
17°
8
Moderate rain
18°
9
Light rain
16°
10
Patchy rain possible
17°
11
Patchy rain possible
18°
12
Patchy rain possible
21°
13
Patchy rain possible
19°
14
Light rain
15°
15
Patchy rain possible
18°
16
Light rain
18°
17
Patchy rain possible
18°
18
Fog
18°
19
Light rain
21°
20
Patchy rain possible
17°
21
Patchy rain possible
16°
22
Cloudy
12°
23
Patchy rain possible
15°
24
Moderate rain
13°
25
Moderate rain
17°
26
Moderate rain
15°
27
Moderate rain
17°
28
Sunny
10°
29
Overcast
10°
30
Light rain
13°
31
Patchy rain possible
16°

What’s the Weather Like in Gunma This October?

Discover the average temperatures and weather trends across Gunma’s cities this October.
Patchy rain possibleKusatsu16 °C / 9 °CPatchy rain possibleMinakami16 °C / 8 °CMore Locations

Temperatures trend during October in Gunma

See the weather trend as well as the moving average line

October weather in Gunma day by day

Click on a date for more information
September November
Date Weather Temperatures Rain UV More
1 Oct. Light rain
Light rain
 20° /12° 4.5 mm 5
2 Oct. Patchy rain possible
Patchy rain possible
 20° /11° 0.1 mm 5
3 Oct. Light rain shower
Light rain shower
 17° /10° 2.1 mm 4
4 Oct. Light rain
Light rain
 16° /12° 4.5 mm 3
5 Oct. Light rain shower
Light rain shower
 18° /12° 0.7 mm 3
6 Oct. Patchy rain possible
Patchy rain possible
 19° /13° 2.1 mm 4
7 Oct. Patchy rain possible
Patchy rain possible
 17° /10° 2.3 mm 4
8 Oct. Moderate rain
Moderate rain
 18° /9° 15.4 mm 4
9 Oct. Light rain
Light rain
 16° /9° 8 mm 4
10 Oct. Patchy rain possible
Patchy rain possible
 17° /8° 0.3 mm 4
11 Oct. Patchy rain possible
Patchy rain possible
 18° /10° 0.4 mm 4
12 Oct. Patchy rain possible
Patchy rain possible
 21° /11° 0.4 mm 4
13 Oct. Patchy rain possible
Patchy rain possible
 19° /11° 0.2 mm 4
14 Oct. Light rain
Light rain
 15° /9° 6.9 mm 3
15 Oct. Patchy rain possible
Patchy rain possible
 18° /9° 0.1 mm 4
16 Oct. Light rain
Light rain
 18° /10° 3.9 mm 3
17 Oct. Patchy rain possible
Patchy rain possible
 18° /10° 0.2 mm 4
18 Oct. Fog
Fog
 18° /10° 0.3 mm 4
19 Oct. Light rain
Light rain
 21° /9° 3.1 mm 3
20 Oct. Patchy rain possible
Patchy rain possible
 17° /8° 2 mm 3
21 Oct. Patchy rain possible
Patchy rain possible
 16° /7° 1.5 mm 3
22 Oct. Cloudy
Cloudy
 12° /5° 0.4 mm 2
23 Oct. Patchy rain possible
Patchy rain possible
 15° /6° 0.2 mm 3
24 Oct. Moderate rain
Moderate rain
 13° /10° 11 mm 0.5
25 Oct. Moderate rain
Moderate rain
 17° /11° 15.3 mm 0.9
26 Oct. Moderate rain
Moderate rain
 15° /12° 21 mm 0.6
27 Oct. Moderate rain
Moderate rain
 17° /9° 21.7 mm 1.7
28 Oct. Sunny
Sunny
 10° /1° 0.3 mm 4.9
29 Oct. Overcast
Overcast
 10° /0° 0 mm 4
30 Oct. Light rain
Light rain
 13° /6° 4.4 mm 4
31 Oct. Patchy rain possible
Patchy rain possible
 16° /7° 2.1 mm 4
Next
Important Notice
Our weather forecast for Gunma in October 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 October vs September vs November

Compare October 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.
SeptemberOctoberNovember
WeatherPatchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Temperatures22°/15°16°/9°10°/2°
Rainfall220 mm109 mm33 mm
Snowfall0 cm0 cm1 cm
Wind8.7 km/h9 km/h10.9 km/h
Humidity88%83%74%
Rainy days21 days12 days5 days
Snow days0 days0 days2 days
Dry days9 days19 days23 days

Planning a trip to Gunma? Discover the best time to visit

Gunma in October - FAQ

What are the expected maximum and minimum temperatures in Gunma during October?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Gunma during October?
Significant rainfall exceeding 109.4 mm is expected in Gunma during October, occurring over more than 12 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Gunma during October?
The average wind speed in Gunma during October is 9 km/h, suggesting breezy to windy conditions, depending on your activities.

October rainfall patterns in Gunma

Explore the daily rainfall trends and prepare for Gunmas October weather 💧
Typically, Gunma has 12 rainy days in October with a total of 109.4 mm of rainfall.

UV exposure in Gunma during October

Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️

What to pack to Gunma in October?

🌦️ Mild · highs around 16 °C, frequent showers

As you prepare for your trip to Gunma in October, 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 October, is comfortable and enjoyable, regardless of the weather conditions.

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