Sea Temperature in Koper in January

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

6°C

MINIMUN

10°C

AVERAGE

14°C

MAXIMUM

Historical Data of Water Temperature in January in Koper

Water Temperature Chart for Adriatic Sea in Koper in January

Sea Temperature Table in Koper in January Over the Past Years

Day	2024	2023	2022	Average
Jan 1	13°C	12°C	12°C	12.3°C
Jan 2	14°C	12°C	12°C	12.5°C
Jan 3	13°C	11°C	11°C	12.0°C
Jan 4	13°C	11°C	11°C	11.8°C
Jan 5	13°C	11°C	11°C	11.8°C
Jan 6	13°C	11°C	11°C	11.8°C
Jan 7	13°C	11°C	11°C	11.8°C
Jan 8	13°C	10°C	10°C	11.3°C
Jan 9	13°C	10°C	10°C	11.3°C
Jan 10	13°C	10°C	10°C	11.3°C
Jan 11	12°C	10°C	10°C	11.0°C
Jan 12	13°C	10°C	10°C	11.3°C
Jan 13	13°C	9°C	9°C	10.8°C
Jan 14	13°C	9°C	9°C	10.8°C
Jan 15	12°C	9°C	9°C	10.5°C
Jan 16	12°C	9°C	9°C	10.5°C
Jan 17	12°C	9°C	9°C	10.3°C
Jan 18	12°C	8°C	8°C	9.8°C
Jan 19	12°C	8°C	8°C	9.8°C
Jan 20	12°C	8°C	8°C	9.8°C
Jan 21	12°C	8°C	8°C	9.8°C
Jan 22	12°C	8°C	8°C	9.8°C
Jan 23	12°C	7°C	7°C	9.3°C
Jan 24	11°C	7°C	7°C	8.8°C
Jan 25	12°C	7°C	7°C	9.0°C
Jan 26	11°C	7°C	7°C	9.0°C
Jan 27	11°C	7°C	7°C	9.0°C
Jan 28	11°C	6°C	6°C	8.5°C
Jan 29	11°C	6°C	6°C	8.5°C
Jan 30	11°C	6°C	6°C	8.5°C

Koper Climate and Swimming Opportunities in January

7°C

Average Day Air Temperature

2°C

Average Night Air Temperature

69 mm

Precipitation Amount per Month

8 days

Number of Rainy Days

9 hrs

Daylight
per Day

3 hrs

Sunshine
per Day

8 km/h

Average Wind Speed

70%

Average
humidity

Koper lies within the Urban Municipality of Koper in Slovenia. The average daytime temperature in Koper in January is 7°C (44°F), while the nighttime average is 2°C (36°F). There are typically eight rainy days during the month, with a total precipitation of 69 mm (2.7 inches). The daylight duration in January in Koper is 9 hours, with an average of 3 hours of sunshine per day. The average wind speed in January is 8 km/h (5 mph), and the humidity level is around 70%.

The water temperature in Koper in January ranges from 8°C to 12°C (46°F to 54°F). At the beginning of the month, the average temperature is around 12°C (54°F), shifting to 11°C (52°F) by mid-January and reaching 9°C (48°F) in the last ten days. Overall, the average sea temperature in Koper for January is 10°C (50°F). Still too cold for most swimmers. Only short dips in proper gear are advisable.

Sea Temperature in January in Nearby Cities

Frequently Asked Questions About Water Temperatures in January in Koper

What is the sea temperature in Koper in January?

The water temperature in the Adriatic Sea in Koper in January ranges from 8°C to 12°C (46°F to 54°F).

Is it possible to swim in the Adriatic Sea in Koper in January?

The average sea temperature in Koper in January is 10°C (50°F), and the air temperature is 7°C (44°F), so still too cold for most swimmers. Only short dips in proper gear are advisable.