Otaru-shi (Otaru)
September
Weather in Otaru-shi for September 2027
Your guide to Otaru-shi weather in September - trends and predictions
In general, the average temperature in Otaru-shi at the beginning of September is 22.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 19.3 °C by the end of September.
The climate of Otaru-shi in September is notably wet, with an average of 12 rainy days, and a total of 97.7 mm of precipitation.
Is September a good time to visit Otaru-shi? check out the best time to travel to Otaru-shi page.
✨ Is September a good time to visit Otaru-shi? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
18
Dry days
12
Rainy days
0
Snow days
21°/14°
Temperatures
16 km/h
Avg max wind
75 %
Avg humidity
Otaru-shi Weather September
Move between months or click on a day
Temperatures trend during September in Otaru-shi
See the weather trend as well as the moving average line
September weather in Otaru-shi day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Patchy rain possible | 24° /17° | 1.3 mm | 4 | |
| 2 Sept. |  Light rain | 22° /16° | 3.9 mm | 4 | |
| 3 Sept. | Light rain | 22° /16° | 3.9 mm | 4 | |
| 4 Sept. | Light rain | 23° /16° | 3.4 mm | 6 | |
| 5 Sept. | Patchy rain possible | 24° /16° | 1.4 mm | 6 | |
| 6 Sept. |  Moderate or heavy rain shower | 23° /17° | 5.9 mm | 5 | |
| 7 Sept. | Patchy rain possible | 22° /15° | 2 mm | 4 | |
| 8 Sept. |  Sunny | 24° /15° | 0.2 mm | 5 | |
| 9 Sept. |  Cloudy | 22° /15° | 0.8 mm | 5 | |
| 10 Sept. |  Overcast | 24° /16° | 0.6 mm | 6 | |
| 11 Sept. | Patchy rain possible | 23° /15° | 2 mm | 5 | |
| 12 Sept. | Patchy rain possible | 23° /15° | 2.4 mm | 5 | |
| 13 Sept. | Patchy rain possible | 24° /14° | 2.1 mm | 4 | |
| 14 Sept. | Light rain | 21° /14° | 9.8 mm | 4 | |
| 15 Sept. | Light rain | 20° /13° | 5.3 mm | 5 | |
| 16 Sept. | Overcast | 21° /13° | 0 mm | 5 | |
| 17 Sept. | Light rain shower | 21° /14° | 0.7 mm | 5 | |
| 18 Sept. |  Partly cloudy | 21° /14° | 0.9 mm | 5 | |
| 19 Sept. | Patchy rain possible | 20° /14° | 0.3 mm | 4 | |
| 20 Sept. |  Moderate rain | 19° /13° | 11.3 mm | 3 | |
| 21 Sept. | Light rain | 17° /11° | 7.1 mm | 4 | |
| 22 Sept. | Patchy rain possible | 18° /11° | 1.8 mm | 4 | |
| 23 Sept. | Light rain shower | 18° /11° | 0.3 mm | 4 | |
| 24 Sept. | Light rain | 20° /10° | 4.5 mm | 4 | |
| 25 Sept. | Light rain | 18° /11° | 2.9 mm | 4 | |
| 26 Sept. | Patchy rain possible | 20° /12° | 1.2 mm | 4 | |
| 27 Sept. | Patchy rain possible | 21° /13° | 2.2 mm | 4 | |
| 28 Sept. | Moderate rain | 20° /13° | 15.9 mm | 4 | |
| 29 Sept. | Light rain | 19° /12° | 3.2 mm | 4 | |
| 30 Sept. | Cloudy | 20° /12° | 0.7 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Otaru-shi 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 Otaru-shi forecast closer to your planned date for the most up-to-date weather information.
Change Month
Otaru-shi weather in September vs August vs October
Compare September weather in Otaru-shi with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
| August | September | October | |
|---|---|---|---|
| Weather | Patchy rain possible | Patchy rain possible | Patchy rain possible |
| Temperatures | 24°/17° | 21°/14° | 14°/7° |
| Rainfall | 130 mm | 98 mm | 139 mm |
| Wind | 12.9 km/h | 16.3 km/h | 21.1 km/h |
| Humidity | 83% | 75% | 74% |
| Rainy days | 16 days | 12 days | 16 days |
| Dry days | 15 days | 18 days | 15 days |
Planning a trip to Otaru-shi? Discover the best time to visit
Otaru-shi in September - FAQ
What are the expected maximum and minimum temperatures in Otaru-shi during September?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Otaru-shi during September?
Moderate rainfall is anticipated in Otaru-shi during September, with a total of 97.7 mm spread over approximately 12 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Otaru-shi during September?
The average wind speed in Otaru-shi during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Otaru-shi
Explore the daily rainfall trends and prepare for Otaru-shis September weather 💧
Typically, Otaru-shi has 12 rainy days in September with a total of 97.7 mm of rainfall.
UV exposure in Otaru-shi during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
What to pack to Otaru-shi in September?
Mild · highs around 21 °C, frequent showers
As you prepare for your trip to Otaru-shi 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 Otaru-shi, during September, is comfortable and enjoyable, regardless of the weather conditions.
0%0 / 6
🧥 Clothing
👟 Footwear
🎒 Accessories
Top locations in Otaru-shi
Select a location for an accurate weather forecast
More Locations Quick links
More Otaru-shi weather pages
You are here
Found a mistake?
We appreciate your attention to details. Tell us here.