Kitasaku-gun (Karuizawa)
September
Weather in Kitasaku-gun for September 2027
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 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 19.1 °C by the end of September.
Kitasaku-gun experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 219.6 mm.
Is September a good time to visit Kitasaku-gun? check out the best time to travel to Kitasaku-gun page.
✨ Is September a good time to visit Kitasaku-gun? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
9
Dry days
21
Rainy days
0
Snow days
21°/14°
Temperatures
9 km/h
Avg max wind
88 %
Avg humidity
Kitasaku-gun Weather September
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Temperatures trend during September in Kitasaku-gun
See the weather trend as well as the moving average line
September weather in Kitasaku-gun day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Patchy rain possible | 26° /18° | 0.9 mm | 5 | |
| 2 Sept. |  Light rain | 27° /17° | 3.6 mm | 5 | |
| 3 Sept. |  Moderate rain | 22° /17° | 12.9 mm | 4 | |
| 4 Sept. | Light rain | 20° /14° | 7 mm | 3 | |
| 5 Sept. | Moderate rain | 20° /14° | 20.2 mm | 3 | |
| 6 Sept. | Light rain | 21° /14° | 7.1 mm | 4 | |
| 7 Sept. |  Heavy rain | 25° /15° | 31.3 mm | 4 | |
| 8 Sept. | Moderate rain | 24° /17° | 16.4 mm | 4 | |
| 9 Sept. | Moderate rain | 23° /16° | 14.4 mm | 4 | |
| 10 Sept. | Light rain | 20° /15° | 6.4 mm | 4 | |
| 11 Sept. | Moderate rain | 20° /14° | 12 mm | 4 | |
| 12 Sept. | Light rain | 21° /15° | 6.1 mm | 3 | |
| 13 Sept. | Light rain | 23° /15° | 5.1 mm | 4 | |
| 14 Sept. | Light rain | 25° /16° | 5.9 mm | 5 | |
| 15 Sept. | Light rain | 23° /16° | 4.9 mm | 4 | |
| 16 Sept. | Moderate rain | 22° /16° | 12.9 mm | 4 | |
| 17 Sept. | Light rain | 25° /15° | 4 mm | 4 | |
| 18 Sept. | Light rain | 24° /15° | 4.5 mm | 5 | |
| 19 Sept. | Light rain shower | 20° /13° | 1.7 mm | 3 | |
| 20 Sept. | Light rain | 20° /14° | 5.2 mm | 4 | |
| 21 Sept. | Light rain | 20° /14° | 5.9 mm | 3 | |
| 22 Sept. | Light rain shower | 21° /11° | 2 mm | 5 | |
| 23 Sept. | Patchy rain possible | 18° /11° | 0.5 mm | 4 | |
| 24 Sept. |  Fog | 19° /11° | 0.2 mm | 3 | |
| 25 Sept. |  Partly cloudy | 21° /10° | 0 mm | 4 | |
| 26 Sept. | Light rain | 20° /13° | 7.8 mm | 4 | |
| 27 Sept. | Light rain shower | 20° /12° | 1.1 mm | 4 | |
| 28 Sept. | Light rain | 20° /12° | 9.8 mm | 3 | |
| 29 Sept. | Light rain | 17° /12° | 9.2 mm | 3 | |
| 30 Sept. | Fog | 17° /10° | 0.7 mm | 3 | |
| Next | |||||
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.
Change Month
Kitasaku-gun weather in September vs August vs October
Compare September weather in Kitasaku-gun with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
| August | September | October | |
|---|---|---|---|
| Weather | Patchy rain possible | Patchy rain possible | Patchy rain possible |
| Temperatures | 25°/16° | 21°/14° | 16°/8° |
| Rainfall | 220 mm | 220 mm | 115 mm |
| Wind | 8.3 km/h | 8.6 km/h | 8.9 km/h |
| Humidity | 85% | 88% | 83% |
| Rainy days | 24 days | 21 days | 12 days |
| Dry days | 7 days | 9 days | 19 days |
Planning a trip to Kitasaku-gun? Discover the best time to visit
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 21° 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 219.6 mm is expected in Kitasaku-gun during September, occurring over more than 21 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 9 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Kitasaku-gun
Explore the daily rainfall trends and prepare for Kitasaku-guns September weather 💧
Typically, Kitasaku-gun has 21 rainy days in September with a total of 219.6 mm of rainfall.
UV exposure in Kitasaku-gun during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
What to pack to Kitasaku-gun in September?
Mild · highs around 21 °C, frequent showers
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.
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