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Weather in Niseko Town for September 2025

Your guide to Niseko Town weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Niseko Town has been nearly identical to the historical average, with a temperature of 22.5 °C (showing only a slight deviation of -0.1 °C).

  • Expect cooler weather in the next days in Niseko Town with the forecast suggesting a temperature of 18.9 °C, lower than the historical average.

  • In general, the average temperature in Niseko Town at the beginning of September is 22.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.1 °C by the end of September.

    • Rain 🌧️

  • The climate of Niseko Town in September is notably wet, with an average of 13 rainy days, and a total of 90.8 mm of precipitation.

    • More

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

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

Average dry days
17
Dry days
Average rainy days
13
Rainy days
Average snowy days
0
Snow days
Average temperatures
20°/11°
Temperatures
Average wind speed
9 km/h
Avg max wind
Average humidity
81 %
Avg humidity

Niseko Town Weather September

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

Temperatures trend during September in Niseko Town

See the weather trend as well as the moving average line

September weather in Niseko Town day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Partly cloudy
Partly cloudy
 23° /13° 3.7 mm 6
2 Sept. Patchy rain possible
Patchy rain possible
 22° /14° 2.6 mm 5
3 Sept. Sunny
Sunny
 23° /12° 0 mm 6
4 Sept. Sunny
Sunny
 23° /11° 0.1 mm 6
5 Sept. Patchy rain possible
Patchy rain possible
 25° /14° 3.9 mm 5
6 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 22° /14° 7.5 mm 5
7 Sept. Patchy rain possible
Patchy rain possible
 20° /12° 3.5 mm 5
8 Sept. Partly cloudy
Partly cloudy
 23° /11° 0 mm 5
9 Sept. Patchy rain possible
Patchy rain possible
 23° /13° 0.2 mm 6
10 Sept. Light rain shower
Light rain shower
 24° /14° 0.7 mm 5
11 Sept. Patchy rain possible
Patchy rain possible
 23° /14° 1.8 mm 5
12 Sept. Moderate rain
Moderate rain
 21° /13° 6 mm 5
13 Sept. Fog
Fog
 22° /13° 5.1 mm 5
14 Sept. Moderate rain
Moderate rain
 19° /10° 9.9 mm 4
15 Sept. Patchy rain possible
Patchy rain possible
 24° /11° 0.3 mm 1.5
16 Sept. Sunny
Sunny
 23° /14° 0 mm 1.4
17 Sept. Moderate rain
Moderate rain
 21° /12° 8.1 mm 0.9
18 Sept. Patchy rain possible
Patchy rain possible
 18° /11° 0.2 mm 1.1
19 Sept. Sunny
Sunny
 19° /9° 0 mm 4
20 Sept. Sunny
Sunny
 18° /7° 0 mm 4
21 Sept. Sunny
Sunny
 17° /8° 0 mm 4
22 Sept. Patchy rain possible
Patchy rain possible
 20° /9° 0.1 mm 3
23 Sept. Patchy rain possible
Patchy rain possible
 21° /12° 0.7 mm 4
24 Sept. Partly cloudy
Partly cloudy
 20° /10° 0 mm 4
25 Sept. Mist
Mist
 18° /13° 0 mm 4
26 Sept. Patchy rain possible
Patchy rain possible
 16° /13° 0.4 mm 3
27 Sept. Moderate rain
Moderate rain
 13° /9° 6.3 mm 2
28 Sept. Partly cloudy
Partly cloudy
 17° /6° 0 mm 4
29 Sept. Patchy rain possible
Patchy rain possible
 17° /9° 0.4 mm 4
30 Sept. Patchy rain possible
Patchy rain possible
 19° /8° 0.1 mm 4
Next
Important Notice
Our weather forecast for Niseko Town 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 Niseko Town forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Niseko Town weather in September vs August vs October

Compare September weather in Niseko Town 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
Temperatures25°/16°20°/11°13°/6°
Rainfall145 mm91 mm181 mm
Snowfall0 cm0 cm4 cm
Wind8.3 km/h9.4 km/h11.5 km/h
Humidity88%81%84%
Rainy days17 days13 days18 days
Snow days0 days0 days2 days
Dry days14 days17 days11 days

Planning a trip to Niseko Town? Discover the best time to visit

Niseko Town in September - FAQ

What are the expected maximum and minimum temperatures in Niseko Town during September?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Niseko Town during September?
Moderate rainfall is anticipated in Niseko Town during September, with a total of 90.8 mm spread over approximately 13 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Niseko Town during September?
The average wind speed in Niseko Town during September is 9 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Niseko Town in September?

As you prepare for your trip to Niseko Town 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 Niseko Town, during September, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Warm Clothing: Sweaters, hoodies, long pants
    • Rain Gear: Lightweight, waterproof clothing
  • Footwear
    • Waterproof Shoes
  • Accessories
    • 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

September rainfall patterns in Niseko Town

Explore the daily rainfall trends and prepare for Niseko Towns September weather 💧

UV exposure in Niseko Town 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 Niseko Town?

Get accurate weather forecasts for Niseko Town, located at latitude 42.779 and longitude 140.669. Stay updated with localized weather information tailored for Niseko Town.

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