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Sea Temperature in Hokkaido in September
Complete information on the sea temperature range in the Sea of Japan in Hokkaido in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in Hokkaido. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Water Temperature Range in Hokkaido in September
11°C
MINIMUN
15°C
AVERAGE
19°C
MAXIMUM
Historical Data of Water Temperature in September in Hokkaido
Water Temperature Chart for Sea of Japan in Hokkaido in September
Sea Temperature Table in Hokkaido in September Over the Past Years
| Day | 2024 | 2023 | 2022 | Average |
|---|---|---|---|---|
| Sep 1 | 17°C | 16°C | 19°C | 17.5°C |
| Sep 2 | 18°C | 16°C | 18°C | 17.5°C |
| Sep 3 | 18°C | 16°C | 18°C | 17.5°C |
| Sep 4 | 18°C | 16°C | 18°C | 17.3°C |
| Sep 5 | 18°C | 16°C | 18°C | 17.5°C |
| Sep 6 | 18°C | 17°C | 17°C | 17.3°C |
| Sep 7 | 18°C | 17°C | 17°C | 17.3°C |
| Sep 8 | 18°C | 17°C | 17°C | 17.5°C |
| Sep 9 | 17°C | 18°C | 16°C | 17.3°C |
| Sep 10 | 18°C | 19°C | 16°C | 17.8°C |
| Sep 11 | 18°C | 17°C | 16°C | 17.5°C |
| Sep 12 | 18°C | 18°C | 16°C | 17.5°C |
| Sep 13 | 18°C | 17°C | 15°C | 17.0°C |
| Sep 14 | 17°C | 18°C | 15°C | 17.0°C |
| Sep 15 | 18°C | 18°C | 15°C | 17.3°C |
| Sep 16 | 17°C | 18°C | 15°C | 17.0°C |
| Sep 17 | 17°C | 19°C | 14°C | 17.0°C |
| Sep 18 | 17°C | 18°C | 14°C | 16.8°C |
| Sep 19 | 17°C | 19°C | 14°C | 17.0°C |
| Sep 20 | 17°C | 17°C | 14°C | 16.5°C |
| Sep 21 | 17°C | 17°C | 13°C | 16.3°C |
| Sep 22 | 16°C | 18°C | 13°C | 16.0°C |
| Sep 23 | 16°C | 17°C | 13°C | 15.8°C |
| Sep 24 | 17°C | 17°C | 12°C | 15.8°C |
| Sep 25 | 17°C | 17°C | 12°C | 15.5°C |
| Sep 26 | 17°C | 17°C | 12°C | 15.5°C |
| Sep 27 | 16°C | 17°C | 12°C | 15.3°C |
| Sep 28 | 16°C | 15°C | 11°C | 14.5°C |
| Sep 29 | 16°C | 15°C | 11°C | 14.3°C |
Hokkaido Climate and Swimming Opportunities in September
22°C
Average Day Air Temperature
14°C
Average Night Air Temperature
135 mm
Precipitation Amount per Month
14 days
Number of Rainy Days
12 hrs
Daylight
per Day
5 hrs
Sunshine
per Day
12 km/h
Average Wind Speed
76%
Average
humidity
Hokkaido lies within the Hokkaido in Japan. The average daytime temperature in Hokkaido in September is 22°C (72°F), while the nighttime average is 14°C (58°F). There are typically 14 rainy days during the month, with a total precipitation of 135 mm (5.3 inches). The daylight duration in September in Hokkaido is 12 hours, with an average of 5 hours of sunshine per day. The average wind speed in September is 12 km/h (7 mph), and the humidity level is around 76%.
The water temperature in Hokkaido in September ranges from 14°C to 17°C (57°F to 63°F). At the beginning of the month, the average temperature is around 17°C (63°F), shifting to 17°C (63°F) by mid-September and reaching 16°C (61°F) in the last ten days. Overall, the average sea temperature in Hokkaido for September is 17°C (63°F). Very comfortable swimming conditions. The water is fresh but not too cold, and the air temperature is pleasant.
Sea Temperature in September in Nearby Cities
Frequently Asked Questions About Water Temperatures in September in Hokkaido
What is the sea temperature in Hokkaido in September?
The water temperature in the Sea of Japan in Hokkaido in September ranges from 14°C to 17°C (57°F to 63°F).
Is it possible to swim in the Sea of Japan in Hokkaido in September?
The average sea temperature in Hokkaido in September is 17°C (63°F), and the air temperature is 22°C (72°F), so very comfortable swimming conditions. The water is fresh but not too cold, and the air temperature is pleasant.