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Sea Temperature in Koper in December

Koper

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Complete information on the sea temperature range in the Adriatic Sea in Koper in December. Historical daily data. Climate details for December. 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 December

50°F

MINIMUN

56°F

AVERAGE

63°F

MAXIMUM

Historical Data of Water Temperature in December in Koper

Water Temperature Chart for Adriatic Sea in Koper in December

Sea Temperature Table in Koper in December Over the Past Years

Day202420232022Average
Dec 161°C61°C61°C60°C
Dec 263°C61°C61°C61°C
Dec 361°C61°C61°C60°C
Dec 461°C61°C61°C60°C
Dec 561°C61°C61°C60°C
Dec 661°C59°C61°C60°C
Dec 759°C61°C61°C59°C
Dec 859°C59°C61°C60°C
Dec 959°C59°C59°C59°C
Dec 1061°C61°C59°C59°C
Dec 1159°C59°C59°C58°C
Dec 1259°C59°C59°C59°C
Dec 1359°C57°C59°C58°C
Dec 1459°C59°C59°C58°C
Dec 1559°C59°C59°C58°C
Dec 1657°C59°C59°C58°C
Dec 1757°C57°C57°C56°C
Dec 1857°C57°C59°C57°C
Dec 1957°C59°C57°C57°C
Dec 2057°C59°C57°C57°C
Dec 2157°C57°C57°C57°C
Dec 2257°C57°C57°C57°C
Dec 2357°C57°C57°C57°C
Dec 2455°C57°C57°C56°C
Dec 2557°C57°C57°C56°C
Dec 2655°C57°C55°C55°C
Dec 2755°C57°C55°C55°C
Dec 2855°C57°C55°C55°C
Dec 2955°C57°C55°C55°C
Dec 3055°C57°C54°C55°C

Koper Climate and Swimming Opportunities in December

46°F

Average Day Air Temperature

37°F

Average Night Air Temperature

4 in

Precipitation Amount per Month

9 days

Number of Rainy Days

9 hrs

Daylight
per Day

3 hrs

Sunshine
per Day

6 mph

Average Wind Speed

71%

Average
humidity

Koper lies within the Urban Municipality of Koper in Slovenia. The average daytime temperature in Koper in December is 8°C (46°F), while the nighttime average is 3°C (38°F). There are typically nine rainy days during the month, with a total precipitation of 106 mm (4.2 inches). The daylight duration in December in Koper is 9 hours, with an average of 3 hours of sunshine per day. The average wind speed in December is 9 km/h (6 mph), and the humidity level is around 71%.

The water temperature in Koper in December ranges from 12°C to 16°C (54°F to 61°F). At the beginning of the month, the average temperature is around 16°C (61°F), shifting to 14°C (57°F) by mid-December and reaching 13°C (55°F) in the last ten days. Overall, the average sea temperature in Koper for December is 14°C (57°F). The water is still cold, but for short swims, it can be manageable. Warm clothes are necessary after swimming.

Frequently Asked Questions About Water Temperatures in December in Koper

What is the sea temperature in Koper in December?

The water temperature in the Adriatic Sea in Koper in December ranges from 12°C to 16°C (54°F to 61°F).

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

The average sea temperature in Koper in December is 14°C (57°F), and the air temperature is 8°C (46°F), so the water is still cold, but for short swims, it can be manageable. Warm clothes are necessary after swimming.