Weather in Nagano for August 2025
In general, the average temperature in Nagano at the beginning of August is 30.9 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 30.4 °C by the end of August.
Nagano experiences an exceptionally high level of rainfall in August, with more than 24 rainy days on average.
Is August a good time to visit Nagano? check out the best time to travel to Nagano page.
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Nagano in August average weather
Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
---|---|---|---|---|---|---|
1 31° | 2 33° | 3 33° | ||||
4 32° | 5 30° | 6 29° | 7 28° | 8 28° | 9 31° | 10 29° |
11 31° | 12 29° | 13 30° | 14 31° | 15 30° | 16 30° | 17 30° |
18 30° | 19 31° | 20 30° | 21 31° | 22 32° | 23 33° | 24 31° |
25 30° | 26 32° | 27 31° | 28 29° | 29 29° | 30 30° | 31 32° |
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Temperatures trend during August in Nagano
August weather day by day
Date | Weather | Temperatures | Rain | UV | More |
---|---|---|---|---|---|
1 Aug. | Sunny | 31° /16° | 0 mm | 8 | |
2 Aug. | Sunny | 33° /17° | 0 mm | 8 | |
3 Aug. | Patchy rain possible | 33° /20° | 0.7 mm | 7 | |
4 Aug. | Light rain shower | 32° /18° | 8.5 mm | 7 | |
5 Aug. | Light rain shower | 30° /20° | 11.3 mm | 7 | |
6 Aug. | Light rain shower | 29° /18° | 12.9 mm | 6 | |
7 Aug. | Light rain shower | 28° /17° | 7.6 mm | 6 | |
8 Aug. | Light rain shower | 28° /18° | 4 mm | 6 | |
9 Aug. | Patchy rain possible | 31° /15° | 1.3 mm | 7 | |
10 Aug. | Patchy rain possible | 29° /13° | 0.1 mm | 6 | |
11 Aug. | Patchy rain possible | 31° /19° | 0.1 mm | 7 | |
12 Aug. | Light rain shower | 29° /18° | 3.9 mm | 6 | |
13 Aug. | Light rain shower | 30° /20° | 9.7 mm | 6 | |
14 Aug. | Light rain shower | 31° /19° | 16.2 mm | 7 | |
15 Aug. | Light rain shower | 30° /18° | 10 mm | 7 | |
16 Aug. | Patchy rain possible | 30° /20° | 2.3 mm | 7 | |
17 Aug. | Patchy rain possible | 30° /20° | 0.3 mm | 7 | |
18 Aug. | Patchy rain possible | 30° /18° | 2.2 mm | 7 | |
19 Aug. | Patchy light rain with thunder | 31° /17° | 6.9 mm | 7 | |
20 Aug. | Light rain shower | 30° /15° | 3 mm | 7 | |
21 Aug. | Moderate or heavy rain shower | 31° /20° | 5.4 mm | 7 | |
22 Aug. | Patchy rain possible | 32° /20° | 2.4 mm | 7 | |
23 Aug. | Heavy rain at times | 33° /20° | 3.8 mm | 7 | |
24 Aug. | Moderate or heavy rain shower | 31° /18° | 18.7 mm | 7 | |
25 Aug. | Patchy light rain with thunder | 30° /17° | 9.1 mm | 7 | |
26 Aug. | Patchy rain possible | 32° /18° | 7.4 mm | 7 | |
27 Aug. | Patchy rain possible | 31° /18° | 6.3 mm | 7 | |
28 Aug. | Patchy rain possible | 29° /17° | 8.8 mm | 6 | |
29 Aug. | Patchy rain possible | 29° /16° | 9.2 mm | 6 | |
30 Aug. | Patchy rain possible | 30° /16° | 6 mm | 7 | |
31 Aug. | Partly cloudy | 32° /17° | 0.9 mm | 7 | |
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Nagano in August - FAQ
What to pack to Nagano in August?
As you prepare for your trip to Nagano in August, 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, during August, 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
- Sandals/Flip-flops: Comfortable for warm climates
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
- Insect Repellent: For destinations with mosquitos or other insects
August rainfall patterns in Nagano
UV exposure in Nagano during August
Quick links
Get accurate weather forecasts for Nagano, located at latitude 36.65 and longitude 138.183. Stay updated with localized weather information tailored for Nagano.