Hakodate
September
Weather in Hakodate for September 2025
Your guide to Hakodate weather in September - trends and predictions
In general, the average temperature in Hakodate at the beginning of September is 24.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20.6 °C by the end of September.
Expect significant rainfall in Hakodate during September, with an average of 17 rainy days.
Is September a good time to visit Hakodate? check out the best time to travel to Hakodate page.
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13
Dry days
17
Rainy days
0
Snow days
23°/18°
Temperatures
19 km/h
Avg max wind
80 %
Avg humidity
Hakodate in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  24° | 2  25° | 3  24° | 4 24° | 5 24° | 6 25° | 7  24° |
| 8 23° | 9 24° | 10 25° | 11 25° | 12  25° | 13  24° | 14  23° |
| 15 22° | 16 23° | 17 23° | 18 25° | 19 24° | 20 22° | 21 17° |
| 22 19° | 23 19° | 24 18° | 25 21° | 26 22° | 27 22° | 28  21° |
| 29 20° | 30 20° |
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Temperatures trend during September in Hakodate
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 | 24° /20° | 19 mm | 6 | |
| 2 Sept. | Patchy light drizzle | 25° /19° | 13.2 mm | 6 | |
| 3 Sept. | Partly cloudy | 24° /18° | 0 mm | 6 | |
| 4 Sept. | Light rain shower | 24° /19° | 2.5 mm | 5 | |
| 5 Sept. | Light rain shower | 24° /21° | 2.1 mm | 5 | |
| 6 Sept. | Light rain shower | 25° /19° | 3.5 mm | 6 | |
| 7 Sept. | Sunny | 24° /17° | 0.1 mm | 6 | |
| 8 Sept. | Patchy rain possible | 23° /17° | 0.1 mm | 6 | |
| 9 Sept. | Light rain shower | 24° /20° | 1.1 mm | 6 | |
| 10 Sept. | Patchy rain possible | 25° /20° | 0.3 mm | 6 | |
| 11 Sept. | Patchy rain possible | 25° /21° | 1.4 mm | 6 | |
| 12 Sept. | Overcast | 25° /19° | 0 mm | 6 | |
| 13 Sept. | Cloudy | 24° /18° | 0 mm | 6 | |
| 14 Sept. | Moderate rain | 23° /17° | 8.2 mm | 5 | |
| 15 Sept. | Overcast | 22° /16° | 2.1 mm | 5 | |
| 16 Sept. | Overcast | 23° /16° | 0 mm | 5 | |
| 17 Sept. | Overcast | 23° /18° | 0.1 mm | 5 | |
| 18 Sept. | Light rain shower | 25° /19° | 0.8 mm | 6 | |
| 19 Sept. | Light rain shower | 24° /18° | 3 mm | 6 | |
| 20 Sept. | Overcast | 22° /14° | 0.6 mm | 5 | |
| 21 Sept. | Light rain | 17° /14° | 6.6 mm | 4 | |
| 22 Sept. | Patchy rain possible | 19° /14° | 7.4 mm | 5 | |
| 23 Sept. | Light rain shower | 19° /13° | 1.5 mm | 5 | |
| 24 Sept. | Sunny | 18° /14° | 0 mm | 5 | |
| 25 Sept. | Patchy rain possible | 21° /15° | 1.5 mm | 5 | |
| 26 Sept. | Patchy rain possible | 22° /18° | 4.1 mm | 5 | |
| 27 Sept. | Patchy rain possible | 22° /17° | 0.3 mm | 5 | |
| 28 Sept. | Moderate or heavy rain shower | 21° /16° | 23.3 mm | 6 | |
| 29 Sept. | Patchy rain possible | 20° /15° | 0.1 mm | 5 | |
| 30 Sept. | Patchy rain possible | 20° /15° | 1.5 mm | 5 | |
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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.
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 23° and lows near 18°, suitable for diverse activities and preferences.
How much rainfall should be expected in Hakodate during September?
Significant rainfall exceeding 172.5 mm is expected in Hakodate during September, occurring over more than 17 days. Preparing for wet conditions is recommended in your planning.
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
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