Karuizawa
August
Weather in Karuizawa for August 2026
Your guide to Karuizawa weather in August - trends and predictions
In general, the average temperature in Karuizawa at the beginning of August is 26.6 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 25.4 °C by the end of August.
Karuizawa experiences heavy rainfall in August, with over 20 rainy days and an average total precipitation 218.2 mm.
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Temperatures
Rain 🌧️
More
3
Dry days
28
Rainy days
0
Snow days
25°/16°
Temperatures
7 km/h
Avg max wind
84 %
Avg humidity
Karuizawa Weather August
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Temperatures trend during August in Karuizawa
See the weather trend as well as the moving average line
August weather in Karuizawa day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Aug. |  Partly cloudy | 25° /15° | 0.3 mm | 6 | |
| 2 Aug. |  Patchy rain possible | 28° /16° | 0.3 mm | 6 | |
| 3 Aug. | Patchy rain possible | 28° /17° | 0.2 mm | 6 | |
| 4 Aug. | Light rain shower | 29° /18° | 4 mm | 7 | |
| 5 Aug. | Light rain shower | 27° /17° | 6.3 mm | 6 | |
| 6 Aug. | Light rain shower | 27° /17° | 9.5 mm | 6 | |
| 7 Aug. |  Patchy light rain with thunder | 22° /16° | 20.6 mm | 5 | |
| 8 Aug. | Light rain shower | 24° /15° | 4.6 mm | 5 | |
| 9 Aug. | Light rain shower | 25° /15° | 4.5 mm | 6 | |
| 10 Aug. | Patchy rain possible | 24° /15° | 8.4 mm | 5 | |
| 11 Aug. | Patchy rain possible | 24° /16° | 4.3 mm | 6 | |
| 12 Aug. | Light rain shower | 24° /16° | 5.3 mm | 6 | |
| 13 Aug. | Light rain shower | 24° /17° | 11.1 mm | 6 | |
| 14 Aug. | Light rain shower | 23° /16° | 13.6 mm | 5 | |
| 15 Aug. | Light rain shower | 24° /16° | 9.8 mm | 6 | |
| 16 Aug. | Light rain shower | 23° /16° | 7.7 mm | 6 | |
| 17 Aug. |  Fog | 27° /16° | 1.6 mm | 6 | |
| 18 Aug. | Light rain shower | 26° /16° | 5 mm | 6 | |
| 19 Aug. | Patchy light rain with thunder | 28° /16° | 9.6 mm | 6 | |
| 20 Aug. | Patchy rain possible | 25° /16° | 5.2 mm | 6 | |
| 21 Aug. | Light rain shower | 25° /15° | 3.9 mm | 6 | |
| 22 Aug. | Light rain shower | 24° /16° | 4.5 mm | 5 | |
| 23 Aug. | Patchy light rain with thunder | 27° /16° | 3.9 mm | 6 | |
| 24 Aug. | Patchy light rain with thunder | 26° /17° | 16.5 mm | 6 | |
| 25 Aug. |  Moderate or heavy rain shower | 25° /16° | 18 mm | 6 | |
| 26 Aug. | Light rain shower | 27° /18° | 8 mm | 6 | |
| 27 Aug. | Light rain shower | 26° /17° | 4.7 mm | 6 | |
| 28 Aug. | Light rain shower | 25° /16° | 7.9 mm | 6 | |
| 29 Aug. | Light rain shower | 24° /14° | 7.2 mm | 6 | |
| 30 Aug. |  Moderate rain | 25° /17° | 8.4 mm | 6 | |
| 31 Aug. | Patchy rain possible | 26° /17° | 3.4 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for Karuizawa in August 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 Karuizawa forecast closer to your planned date for the most up-to-date weather information.
Change Month
Karuizawa weather in August vs July vs September
Compare August weather in Karuizawa with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
| July | August | September | |
|---|---|---|---|
| Weather | Patchy rain possible | Patchy rain possible | Patchy rain possible |
| Temperatures | 25°/16° | 25°/16° | 22°/14° |
| Rainfall | 205 mm | 218 mm | 149 mm |
| Wind | 8.6 km/h | 7.2 km/h | 8.2 km/h |
| Humidity | 81% | 84% | 86% |
| Rainy days | 26 days | 28 days | 25 days |
| Dry days | 5 days | 3 days | 5 days |
Planning a trip to Karuizawa? Discover the best time to visit
Karuizawa in August - FAQ
What are the expected maximum and minimum temperatures in Karuizawa during August?
During August, expect a variety of temperatures with highs around 25° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in Karuizawa during August?
Significant rainfall exceeding 218.2 mm is expected in Karuizawa during August, occurring over more than 28 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Karuizawa during August?
The average wind speed in Karuizawa during August is 7 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Karuizawa in August?
As you prepare for your trip to Karuizawa 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 Karuizawa, during August, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Layered Clothing: Light sweaters, long-sleeve shirts, light jackets, and comfortable trousers
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
August rainfall patterns in Karuizawa
Explore the daily rainfall trends and prepare for Karuizawas August weather 💧
Typically, Karuizawa has 28 rainy days in August with a total of 218.2 mm of rainfall.
UV exposure in Karuizawa during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
Quick links
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