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Weather in Hakone for September 2025

Your guide to Hakone weather in September - trends and predictions

    Temperatures

  • So far, September 2025 in Hakone is slightly warmer than the historical average by 0.8 °C.

  • Expect cooler weather in the next days in Hakone with the forecast suggesting a temperature of 23 °C, lower than the historical average.

  • In general, the average temperature in Hakone at the beginning of September is 25.6 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 23.1 °C by the end of September.

    • Rain 🌧️

  • Hakone experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 295.7 mm.

    • More

  • Is September a good time to visit Hakone? check out the best time to travel to Hakone page.

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
3
Dry days
Average rainy days
27
Rainy days
Average snowy days
0
Snow days
Average temperatures
25°/19°
Temperatures
Average wind speed
13 km/h
Avg max wind
Average humidity
83 %
Avg humidity

Hakone Weather September

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Moderate or heavy rain shower
28°
2
Moderate or heavy rain shower
26°
3
Light rain shower
25°
4
Light rain shower
25°
5
Patchy rain possible
25°
6
Patchy rain possible
25°
7
Sunny
25°
8
Patchy rain possible
26°
9
Moderate or heavy rain shower
26°
10
Light rain shower
27°
11
Moderate or heavy rain shower
27°
12
Light rain shower
25°
13
Sunny
27°
14
Patchy rain possible
27°
15
Patchy rain possible
27°
16
Patchy rain possible
28°
17
Patchy rain possible
29°
18
Moderate rain
29°
19
Moderate rain
17°
20
Moderate rain
16°
21
Moderate rain
17°
22
Patchy rain possible
20°
23
Patchy rain possible
21°
24
Patchy rain possible
21°
25
Patchy rain possible
24°
26
Partly cloudy
28°
27
Patchy rain possible
25°
28
Patchy rain possible
20°
29
Light rain shower
22°
30
Patchy rain possible
22°

Temperatures trend during September in Hakone

See the weather trend as well as the moving average line

September weather in Hakone day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 28° /20° 5.8 mm 6
2 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 26° /18° 12.6 mm 6
3 Sept. Light rain shower
Light rain shower
 25° /19° 10.1 mm 6
4 Sept. Light rain shower
Light rain shower
 25° /18° 9.7 mm 6
5 Sept. Patchy rain possible
Patchy rain possible
 25° /18° 16.5 mm 5
6 Sept. Patchy rain possible
Patchy rain possible
 25° /18° 2.5 mm 6
7 Sept. Sunny
Sunny
 25° /18° 8 mm 6
8 Sept. Patchy rain possible
Patchy rain possible
 26° /18° 80.7 mm 6
9 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 26° /19° 11.5 mm 6
10 Sept. Light rain shower
Light rain shower
 27° /20° 2.3 mm 6
11 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 27° /20° 3.8 mm 6
12 Sept. Light rain shower
Light rain shower
 25° /19° 2.6 mm 6
13 Sept. Sunny
Sunny
 27° /19° 0.7 mm 6
14 Sept. Patchy rain possible
Patchy rain possible
 27° /19° 2.9 mm 6
15 Sept. Patchy rain possible
Patchy rain possible
 27° /24° 0.7 mm 1.3
16 Sept. Patchy rain possible
Patchy rain possible
 28° /24° 4.8 mm 1.8
17 Sept. Patchy rain possible
Patchy rain possible
 29° /23° 1 mm 1.8
18 Sept. Moderate rain
Moderate rain
 29° /20° 6.4 mm 2
19 Sept. Moderate rain
Moderate rain
 17° /15° 6.8 mm 4
20 Sept. Moderate rain
Moderate rain
 16° /13° 13.6 mm 4
21 Sept. Moderate rain
Moderate rain
 17° /13° 13.5 mm 4
22 Sept. Patchy rain possible
Patchy rain possible
 20° /14° 0.2 mm 4
23 Sept. Patchy rain possible
Patchy rain possible
 21° /18° 1.1 mm 4
24 Sept. Patchy rain possible
Patchy rain possible
 21° /17° 0.1 mm 4
25 Sept. Patchy rain possible
Patchy rain possible
 24° /18° 0.1 mm 5
26 Sept. Partly cloudy
Partly cloudy
 28° /19° 0.1 mm 6
27 Sept. Patchy rain possible
Patchy rain possible
 25° /20° 1.2 mm 5
28 Sept. Patchy rain possible
Patchy rain possible
 20° /17° 0.1 mm 4
29 Sept. Light rain shower
Light rain shower
 22° /16° 6.2 mm 5
30 Sept. Patchy rain possible
Patchy rain possible
 22° /16° 1.9 mm 5
Next
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.
Change Month
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Hakone weather in September vs August vs October

Compare September weather in Hakone with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
AugustSeptemberOctober
WeatherPatchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Temperatures28°/22°25°/19°19°/13°
Rainfall287 mm296 mm172 mm
Wind11.9 km/h12.7 km/h12.1 km/h
Humidity83%83%78%
Rainy days30 days27 days25 days
Dry days1 days3 days6 days

Planning a trip to Hakone? Discover the best time to visit

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 295.7 mm is expected in Hakone during September, occurring over more than 27 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 ☀️

Quick links

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Location coordinates Where is Hakone?

Get accurate weather forecasts for Hakone, located at latitude 35.189 and longitude 139.026. Stay updated with localized weather information tailored for Hakone.

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