Sea Temperature in Osaka in January

Complete information on the sea temperature range in the Seto Inland Sea in Osaka in January. Historical daily data. Climate details for January. Tips on swimming conditions and beach relaxation in Osaka. 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 Osaka in January

10°C

MINIMUN

14°C

AVERAGE

18°C

MAXIMUM

Historical Data of Water Temperature in January in Osaka

Water Temperature Chart for Seto Inland Sea in Osaka in January

Sea Temperature Table in Osaka in January Over the Past Years

Day	2024	2023	2022	Average
Jan 1	18°C	16°C	15°C	15.8°C
Jan 2	17°C	16°C	15°C	15.5°C
Jan 3	17°C	16°C	14°C	15.3°C
Jan 4	17°C	16°C	14°C	15.3°C
Jan 5	17°C	16°C	14°C	15.3°C
Jan 6	16°C	16°C	14°C	15.0°C
Jan 7	16°C	16°C	14°C	15.0°C
Jan 8	16°C	16°C	14°C	14.8°C
Jan 9	16°C	16°C	13°C	14.8°C
Jan 10	16°C	15°C	13°C	14.5°C
Jan 11	16°C	15°C	13°C	14.5°C
Jan 12	15°C	15°C	13°C	14.0°C
Jan 13	16°C	15°C	13°C	14.5°C
Jan 14	16°C	15°C	13°C	14.3°C
Jan 15	15°C	15°C	12°C	14.0°C
Jan 16	15°C	15°C	12°C	14.0°C
Jan 17	15°C	15°C	12°C	13.8°C
Jan 18	15°C	15°C	12°C	14.0°C
Jan 19	15°C	14°C	12°C	13.5°C
Jan 20	15°C	14°C	12°C	13.5°C
Jan 21	15°C	14°C	11°C	13.3°C
Jan 22	15°C	14°C	11°C	13.3°C
Jan 23	15°C	14°C	11°C	13.3°C
Jan 24	15°C	14°C	11°C	13.3°C
Jan 25	15°C	14°C	11°C	13.3°C
Jan 26	14°C	15°C	11°C	13.5°C
Jan 27	13°C	14°C	10°C	12.8°C
Jan 28	13°C	14°C	10°C	12.5°C
Jan 29	14°C	14°C	10°C	13.0°C
Jan 30	13°C	14°C	10°C	12.5°C

Osaka Climate and Swimming Opportunities in January

9°C

Average Day Air Temperature

2°C

Average Night Air Temperature

47 mm

Precipitation Amount per Month

11 days

Number of Rainy Days

10 hrs

Daylight
per Day

4 hrs

Sunshine
per Day

13 km/h

Average Wind Speed

64%

Average
humidity

Osaka lies within the Osaka Prefecture in Japan. The average daytime temperature in Osaka in January is 9°C (48°F), while the nighttime average is 2°C (36°F). There are typically 11 rainy days during the month, with a total precipitation of 47 mm (1.8 inches). The daylight duration in January in Osaka is 10 hours, with an average of 4 hours of sunshine per day. The average wind speed in January is 13 km/h (8 mph), and the humidity level is around 64%.

The water temperature in Osaka in January ranges from 12°C to 15°C (54°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 Osaka 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 Osaka

What is the sea temperature in Osaka in January?

The water temperature in the Seto Inland Sea in Osaka in January ranges from 12°C to 15°C (54°F to 59°F).

Is it possible to swim in the Seto Inland Sea in Osaka in January?

The average sea temperature in Osaka in January is 14°C (57°F), and the air temperature is 9°C (48°F), so the water is still cold, but for short swims, it can be manageable. Warm clothes are necessary after swimming.