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Weather in Hakodate for September 2025

Your guide to Hakodate weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Hakodate has been nearly identical to the historical average, with a temperature of 23.6 °C (showing only a slight deviation of 0.2 °C).

  • Expect cooler weather in the next days in Hakodate with the forecast suggesting a temperature of 21.6 °C, lower than the historical average.

  • In general, the average temperature in Hakodate at the beginning of September is 23.3 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 20.3 °C by the end of September.

    • Rain 🌧️

  • Hakodate in September brings notable rainfall, with an average of 18 rainy days and a total precipitation of 99 mm.

    • More

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

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

Average dry days
12
Dry days
Average rainy days
18
Rainy days
Average snowy days
0
Snow days
Average temperatures
22°/17°
Temperatures
Average wind speed
19 km/h
Avg max wind
Average humidity
77 %
Avg humidity

Hakodate Weather September

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

Temperatures trend during September in Hakodate

See the weather trend as well as the moving average line

September weather in Hakodate day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Patchy rain possible
Patchy rain possible
 24° /19° 9.6 mm 5
2 Sept. Sunny
Sunny
 24° /18° 6.9 mm 6
3 Sept. Patchy rain possible
Patchy rain possible
 23° /18° 0.3 mm 6
4 Sept. Overcast
Overcast
 23° /18° 1 mm 5
5 Sept. Light rain shower
Light rain shower
 22° /19° 1.4 mm 5
6 Sept. Moderate rain at times
Moderate rain at times
 24° /18° 1.9 mm 6
7 Sept. Patchy rain possible
Patchy rain possible
 23° /17° 4.4 mm 6
8 Sept. Sunny
Sunny
 23° /17° 0 mm 6
9 Sept. Light rain shower
Light rain shower
 24° /19° 2 mm 5
10 Sept. Patchy rain possible
Patchy rain possible
 24° /19° 0.1 mm 5
11 Sept. Patchy rain possible
Patchy rain possible
 23° /19° 0.7 mm 5
12 Sept. Overcast
Overcast
 24° /18° 5 mm 6
13 Sept. Partly cloudy
Partly cloudy
 24° /18° 2.7 mm 6
14 Sept. Overcast
Overcast
 21° /15° 4.1 mm 5
15 Sept. Patchy rain possible
Patchy rain possible
 25° /17° 0.3 mm 1.5
16 Sept. Sunny
Sunny
 25° /17° 0 mm 1.5
17 Sept. Patchy rain possible
Patchy rain possible
 25° /17° 5 mm 1.3
18 Sept. Sunny
Sunny
 22° /15° 0 mm 1.2
19 Sept. Sunny
Sunny
 21° /14° 0.1 mm 5
20 Sept. Sunny
Sunny
 21° /14° 0 mm 5
21 Sept. Sunny
Sunny
 20° /15° 0 mm 5
22 Sept. Sunny
Sunny
 21° /15° 0 mm 5
23 Sept. Patchy rain possible
Patchy rain possible
 22° /15° 0.8 mm 4
24 Sept. Patchy rain possible
Patchy rain possible
 22° /16° 0.2 mm 4
25 Sept. Partly cloudy
Partly cloudy
 21° /19° 0.1 mm 6
26 Sept. Patchy rain possible
Patchy rain possible
 22° /17° 2.6 mm 4
27 Sept. Moderate rain
Moderate rain
 16° /13° 19.2 mm 3
28 Sept. Patchy rain possible
Patchy rain possible
 19° /12° 0.1 mm 4
29 Sept. Patchy rain possible
Patchy rain possible
 21° /15° 0.2 mm 5
30 Sept. Patchy rain possible
Patchy rain possible
 21° /16° 5.7 mm 5
Next
Important Notice
Our weather forecast for Hakodate 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 Hakodate forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Hakodate weather in September vs August vs October

Compare September weather in Hakodate 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
Temperatures24°/20°22°/17°16°/11°
Rainfall245 mm99 mm118 mm
Wind20.4 km/h19.1 km/h21.7 km/h
Humidity87%77%72%
Rainy days29 days18 days20 days
Dry days2 days12 days11 days

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

Hakodate in September - FAQ

What are the expected maximum and minimum temperatures in Hakodate during September?
During September, expect a variety of temperatures with highs around 22° and lows near 17°, suitable for diverse activities and preferences.
How much rainfall should be expected in Hakodate during September?
Moderate rainfall is anticipated in Hakodate during September, with a total of 99 mm spread over approximately 18 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Hakodate during September?
The average wind speed in Hakodate during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Hakodate in September?

As you prepare for your trip to Hakodate 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 Hakodate, 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 Hakodate

Explore the daily rainfall trends and prepare for Hakodates September weather 💧

UV exposure in Hakodate 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 Hakodate?

Get accurate weather forecasts for Hakodate, located at latitude 41.776 and longitude 140.737. Stay updated with localized weather information tailored for Hakodate.

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