Hakone
September
Weather in Hakone for September 2025
Your guide to Hakone weather in September - trends and predictions
In general, the average temperature in Hakone at the beginning of September is 26.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 23 °C by the end of September.
Hakone experiences an exceptionally high level of rainfall in September, with more than 20 rainy days on average.
Is September a good time to visit Hakone? check out the best time to travel to Hakone page.
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9
Dry days
21
Rainy days
0
Snow days
25°/19°
Temperatures
13 km/h
Avg max wind
84 %
Avg humidity
Hakone in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  26° | 2 27° | 3 24° | 4 26° | 5 27° | 6 27° | 7 26° |
| 8 24° | 9 28° | 10 28° | 11  27° | 12  27° | 13  28° | 14  28° |
| 15 27° | 16 26° | 17 28° | 18  27° | 19 27° | 20 28° | 21 26° |
| 22 26° | 23 22° | 24  22° | 25 22° | 26 24° | 27 25° | 28 24° |
| 29 22° | 30 22° |
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Temperatures trend during September in Hakone
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. | Light rain shower | 26° /20° | 13.9 mm | 6 | |
| 2 Sept. | Patchy rain possible | 27° /20° | 0.3 mm | 6 | |
| 3 Sept. | Light rain shower | 24° /19° | 20 mm | 5 | |
| 4 Sept. | Patchy rain possible | 26° /18° | 0.9 mm | 6 | |
| 5 Sept. | Patchy rain possible | 27° /19° | 0.6 mm | 6 | |
| 6 Sept. | Light rain shower | 27° /19° | 3.1 mm | 6 | |
| 7 Sept. | Light rain shower | 26° /19° | 5.6 mm | 6 | |
| 8 Sept. | Light rain shower | 24° /18° | 198.8 mm | 6 | |
| 9 Sept. | Light rain shower | 28° /18° | 8.8 mm | 6 | |
| 10 Sept. | Light rain shower | 28° /20° | 3.5 mm | 6 | |
| 11 Sept. | Moderate or heavy rain shower | 27° /21° | 3.6 mm | 6 | |
| 12 Sept. | Cloudy | 27° /20° | 0.9 mm | 6 | |
| 13 Sept. | Sunny | 28° /20° | 0.1 mm | 7 | |
| 14 Sept. | Partly cloudy | 28° /20° | 0.2 mm | 7 | |
| 15 Sept. | Cloudy | 27° /20° | 0.5 mm | 6 | |
| 16 Sept. | Light rain shower | 26° /20° | 13.5 mm | 6 | |
| 17 Sept. | Light rain shower | 28° /21° | 2.7 mm | 6 | |
| 18 Sept. | Mist | 27° /20° | 0.4 mm | 6 | |
| 19 Sept. | Patchy rain possible | 27° /21° | 5.7 mm | 6 | |
| 20 Sept. | Patchy rain possible | 28° /22° | 0.4 mm | 7 | |
| 21 Sept. | Light rain shower | 26° /21° | 4.5 mm | 6 | |
| 22 Sept. | Light rain shower | 26° /20° | 7.9 mm | 6 | |
| 23 Sept. | Light rain shower | 22° /18° | 7.6 mm | 5 | |
| 24 Sept. | Overcast | 22° /14° | 0.2 mm | 5 | |
| 25 Sept. | Sunny | 22° /14° | 0 mm | 6 | |
| 26 Sept. | Partly cloudy | 24° /17° | 0.3 mm | 6 | |
| 27 Sept. | Patchy rain possible | 25° /18° | 15.9 mm | 6 | |
| 28 Sept. | Patchy rain possible | 24° /18° | 14.8 mm | 6 | |
| 29 Sept. | Light rain shower | 22° /17° | 5.1 mm | 5 | |
| 30 Sept. | Patchy rain possible | 22° /16° | 0.8 mm | 5 | |
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Important Notice
Our weather forecast for Hakone 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 Hakone forecast closer to your planned date for the most up-to-date weather information.
Hakone in September - FAQ
What are the expected maximum and minimum temperatures in Hakone during September?
During September, expect a variety of temperatures with highs around 25° and lows near 19°, suitable for diverse activities and preferences.
How much rainfall should be expected in Hakone during September?
Significant rainfall exceeding 510.6 mm is expected in Hakone during September, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Hakone during September?
The average wind speed in Hakone during September is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Hakone in September?
As you prepare for your trip to Hakone 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 Hakone, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Layered Clothing: Light sweaters, long-sleeve shirts, light jackets, and comfortable 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
- Umbrellas/Raincoats: For rainy days
September rainfall patterns in Hakone
Explore the daily rainfall trends and prepare for Hakones September weather 💧
UV exposure in Hakone during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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