Sea Temperature in Koga in January

Complete information on the sea temperature range in the Sea of Japan in Koga in January. Historical daily data. Climate details for January. Tips on swimming conditions and beach relaxation in Koga. 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 Koga in January

9°C

MINIMUN

12.5°C

AVERAGE

16°C

MAXIMUM

Historical Data of Water Temperature in January in Koga

Water Temperature Chart for Sea of Japan in Koga in January

Sea Temperature Table in Koga in January Over the Past Years

Day	2024	2023	2022	Average
Jan 1	16°C	15°C	15°C	15.0°C
Jan 2	16°C	15°C	15°C	15.3°C
Jan 3	16°C	15°C	15°C	15.0°C
Jan 4	16°C	14°C	14°C	14.8°C
Jan 5	16°C	14°C	14°C	14.5°C
Jan 6	16°C	14°C	14°C	14.5°C
Jan 7	15°C	14°C	14°C	14.3°C
Jan 8	16°C	14°C	14°C	14.8°C
Jan 9	15°C	13°C	13°C	13.8°C
Jan 10	15°C	16°C	13°C	14.5°C
Jan 11	15°C	16°C	13°C	14.5°C
Jan 12	15°C	13°C	13°C	13.8°C
Jan 13	14°C	16°C	13°C	14.3°C
Jan 14	15°C	16°C	12°C	14.0°C
Jan 15	15°C	16°C	12°C	14.3°C
Jan 16	15°C	16°C	12°C	14.3°C
Jan 17	14°C	16°C	12°C	14.0°C
Jan 18	15°C	16°C	12°C	14.3°C
Jan 19	15°C	16°C	11°C	13.8°C
Jan 20	15°C	16°C	11°C	13.8°C
Jan 21	14°C	16°C	11°C	13.5°C
Jan 22	15°C	16°C	11°C	13.8°C
Jan 23	15°C	16°C	11°C	13.8°C
Jan 24	15°C	16°C	10°C	13.5°C
Jan 25	15°C	15°C	10°C	13.3°C
Jan 26	14°C	16°C	10°C	13.3°C
Jan 27	14°C	16°C	10°C	13.3°C
Jan 28	14°C	16°C	10°C	13.3°C
Jan 29	15°C	16°C	9°C	13.3°C
Jan 30	14°C	16°C	9°C	13.0°C

Koga Climate and Swimming Opportunities in January

10°C

Average Day Air Temperature

3°C

Average Night Air Temperature

69 mm

Precipitation Amount per Month

11 days

Number of Rainy Days

10 hrs

Daylight
per Day

3 hrs

Sunshine
per Day

15 km/h

Average Wind Speed

67%

Average
humidity

Koga lies within the Fukuoka Prefecture in Japan. The average daytime temperature in Koga in January is 10°C (49°F), while the nighttime average is 3°C (38°F). There are typically 11 rainy days during the month, with a total precipitation of 69 mm (2.7 inches). The daylight duration in January in Koga is 10 hours, with an average of 3 hours of sunshine per day. The average wind speed in January is 15 km/h (9 mph), and the humidity level is around 67%.

The water temperature in Koga in January ranges from 13°C to 15°C (55°F to 59°F). At the beginning of the month, the average temperature is around 15°C (59°F), shifting to 14°C (57°F) by mid-January and reaching 13°C (55°F) in the last ten days. Overall, the average sea temperature in Koga for January is 14°C (57°F). The water is still cold, but for short swims, it can be manageable. Warm clothes are necessary after swimming.

Sea Temperature in January in Nearby Cities

Frequently Asked Questions About Water Temperatures in January in Koga

What is the sea temperature in Koga in January?

The water temperature in the Sea of Japan in Koga in January ranges from 13°C to 15°C (55°F to 59°F).

Is it possible to swim in the Sea of Japan in Koga in January?

The average sea temperature in Koga in January is 14°C (57°F), and the air temperature is 10°C (49°F), so the water is still cold, but for short swims, it can be manageable. Warm clothes are necessary after swimming.