Weather in Nagano Shi for September 2025
In general, the average temperature in Nagano Shi at the beginning of September is 29.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 24.6 °C by the end of September.
Nagano Shi experiences an exceptionally high level of rainfall in September, with more than 20 rainy days on average.
Is September a good time to visit Nagano Shi? check out the best time to travel to Nagano Shi page.
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Nagano Shi in September average weather
Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
---|---|---|---|---|---|---|
1 32° | 2 30° | 3 30° | 4 29° | 5 30° | 6 26° | 7 28° |
8 25° | 9 29° | 10 31° | 11 28° | 12 30° | 13 30° | 14 31° |
15 28° | 16 29° | 17 31° | 18 29° | 19 26° | 20 28° | 21 25° |
22 20° | 23 21° | 24 23° | 25 24° | 26 26° | 27 25° | 28 25° |
29 24° | 30 25° |
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Temperatures trend during September in Nagano Shi
September weather day by day
Date | Weather | Temperatures | Rain | UV | More |
---|---|---|---|---|---|
1 Sept. | Patchy rain possible | 32° /14° | 0.6 mm | 7 | |
2 Sept. | Patchy rain possible | 30° /18° | 2.2 mm | 7 | |
3 Sept. | Patchy rain possible | 30° /14° | 10.9 mm | 7 | |
4 Sept. | Light drizzle | 29° /14° | 1 mm | 6 | |
5 Sept. | Moderate or heavy rain shower | 30° /15° | 14 mm | 7 | |
6 Sept. | Moderate or heavy rain shower | 26° /14° | 12 mm | 6 | |
7 Sept. | Partly cloudy | 28° /13° | 1.1 mm | 7 | |
8 Sept. | Light rain shower | 25° /15° | 17.4 mm | 6 | |
9 Sept. | Light rain shower | 29° /16° | 4.3 mm | 7 | |
10 Sept. | Moderate or heavy rain shower | 31° /16° | 6.9 mm | 7 | |
11 Sept. | Light rain shower | 28° /16° | 3.2 mm | 7 | |
12 Sept. | Cloudy | 30° /17° | 1.8 mm | 7 | |
13 Sept. | Mist | 30° /17° | 4.6 mm | 7 | |
14 Sept. | Mist | 31° /16° | 1.1 mm | 7 | |
15 Sept. | Mist | 28° /19° | 3.6 mm | 6 | |
16 Sept. | Light rain shower | 29° /17° | 6.2 mm | 6 | |
17 Sept. | Light rain shower | 31° /17° | 8.2 mm | 7 | |
18 Sept. | Patchy rain possible | 29° /16° | 5.6 mm | 7 | |
19 Sept. | Patchy rain possible | 26° /15° | 9.1 mm | 6 | |
20 Sept. | Light rain shower | 28° /15° | 2.5 mm | 6 | |
21 Sept. | Patchy light drizzle | 25° /17° | 3.7 mm | 6 | |
22 Sept. | Light rain shower | 20° /13° | 20.2 mm | 5 | |
23 Sept. | Patchy rain possible | 21° /7° | 0.8 mm | 5 | |
24 Sept. | Partly cloudy | 23° /6° | 0.1 mm | 6 | |
25 Sept. | Overcast | 24° /6° | 0 mm | 6 | |
26 Sept. | Patchy rain possible | 26° /10° | 1 mm | 6 | |
27 Sept. | Patchy light rain | 25° /13° | 2.8 mm | 6 | |
28 Sept. | Light rain shower | 25° /13° | 3.5 mm | 6 | |
29 Sept. | Patchy rain possible | 24° /11° | 0.6 mm | 5 | |
30 Sept. | Light rain shower | 25° /12° | 1 mm | 6 | |
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Nagano Shi in September - FAQ
What to pack to Nagano Shi in September?
As you prepare for your trip to Nagano Shi 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 Nagano Shi, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- 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
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
September rainfall patterns in Nagano Shi
UV exposure in Nagano Shi during September
Quick links
Get accurate weather forecasts for Nagano Shi, located at latitude 36.65 and longitude 138.183. Stay updated with localized weather information tailored for Nagano Shi.