Kitasaku-gun (Karuizawa)
September
Weather in Kitasaku-gun for September 2025
Your guide to Kitasaku-gun weather in September - trends and predictions
In general, the average temperature in Kitasaku-gun at the beginning of September is 23.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.9 °C by the end of September.
Kitasaku-gun experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 129.9 mm.
Is September a good time to visit Kitasaku-gun? check out the best time to travel to Kitasaku-gun page.
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Temperatures
Rain 🌧️
More
4
Dry days
26
Rainy days
0
Snow days
22°/14°
Temperatures
8 km/h
Avg max wind
86 %
Avg humidity
Kitasaku-gun in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  24° | 2 25° | 3 19° | 4 21° | 5 24° | 6 25° | 7 27° |
| 8 23° | 9 22° | 10 24° | 11 25° | 12 24° | 13 25° | 14  24° |
| 15 23° | 16 22° | 17 28° | 18 28° | 19 22° | 20 26° | 21 20° |
| 22 23° | 23 20° | 24  14° | 25  16° | 26 22° | 27 21° | 28 20° |
| 29 16° | 30 16° |
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Temperatures trend during September in Kitasaku-gun
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Patchy rain possible | 24° /16° | 1.2 mm | 5 | |
| 2 Sept. | Patchy rain possible | 25° /16° | 3.2 mm | 6 | |
| 3 Sept. | Light rain shower | 19° /15° | 16.8 mm | 4 | |
| 4 Sept. | Patchy rain possible | 21° /11° | 0.2 mm | 5 | |
| 5 Sept. | Light rain shower | 24° /13° | 0.9 mm | 5 | |
| 6 Sept. | Patchy rain possible | 25° /14° | 0.1 mm | 6 | |
| 7 Sept. | Patchy rain possible | 27° /15° | 3.5 mm | 6 | |
| 8 Sept. | Light rain shower | 23° /16° | 20.2 mm | 5 | |
| 9 Sept. | Light rain shower | 22° /16° | 5.8 mm | 5 | |
| 10 Sept. | Light rain shower | 24° /15° | 7.2 mm | 5 | |
| 11 Sept. | Light rain shower | 25° /15° | 9.5 mm | 6 | |
| 12 Sept. | Light rain shower | 24° /16° | 5.2 mm | 5 | |
| 13 Sept. | Light rain shower | 25° /16° | 12.7 mm | 6 | |
| 14 Sept. | Patchy light drizzle | 24° /16° | 1.8 mm | 5 | |
| 15 Sept. | Light rain shower | 23° /16° | 3.9 mm | 5 | |
| 16 Sept. | Light rain shower | 22° /16° | 4.3 mm | 5 | |
| 17 Sept. | Light rain shower | 28° /16° | 3.7 mm | 6 | |
| 18 Sept. | Light rain shower | 28° /19° | 5.2 mm | 6 | |
| 19 Sept. | Light rain shower | 22° /15° | 4 mm | 5 | |
| 20 Sept. | Patchy rain possible | 26° /15° | 0.2 mm | 6 | |
| 21 Sept. | Patchy light drizzle | 20° /16° | 1.1 mm | 5 | |
| 22 Sept. | Light rain shower | 23° /14° | 6 mm | 5 | |
| 23 Sept. | Patchy rain possible | 20° /10° | 1.5 mm | 5 | |
| 24 Sept. | Fog | 14° /8° | 0.6 mm | 3 | |
| 25 Sept. | Partly cloudy | 16° /6° | 0 mm | 5 | |
| 26 Sept. | Patchy rain possible | 22° /12° | 2.2 mm | 5 | |
| 27 Sept. | Light rain shower | 21° /13° | 1.4 mm | 5 | |
| 28 Sept. | Light rain shower | 20° /13° | 4.8 mm | 5 | |
| 29 Sept. | Light rain shower | 16° /13° | 2.3 mm | 4 | |
| 30 Sept. | Fog | 16° /12° | 0.6 mm | 4 | |
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Important Notice
Our weather forecast for Kitasaku-gun in September 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 Kitasaku-gun forecast closer to your planned date for the most up-to-date weather information.
Kitasaku-gun in September - FAQ
What are the expected maximum and minimum temperatures in Kitasaku-gun during September?
Enjoy moderate daytime temperatures of up to 22° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Kitasaku-gun during September?
Significant rainfall exceeding 129.9 mm is expected in Kitasaku-gun during September, occurring over more than 26 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Kitasaku-gun during September?
The average wind speed in Kitasaku-gun during September is 8 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Kitasaku-gun in September?
As you prepare for your trip to Kitasaku-gun in September, 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 Kitasaku-gun, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
September rainfall patterns in Kitasaku-gun
Explore the daily rainfall trends and prepare for Kitasaku-guns September weather 💧
UV exposure in Kitasaku-gun during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Kitasaku-gun?Get accurate weather forecasts for Kitasaku-gun, located at latitude 36.35 and longitude 138.633. Stay updated with localized weather information tailored for Kitasaku-gun.
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