Measurements:
°C
°F
Koper
64°F
SE 2 mph
Feels like: 64°F
Precip: 0%
World Resorts Slovenia Koper Weather

Koper Sea Water Temperature

Current Sea Water Temperature:
+80.4°F
Maximum Sea Water Temperature in September: 86.2°F
Minimum Sea Water Temperature in September: 71.0°F
Average water temperature in September: 76.5°F

Sea Water Temperature for the Last 10 Days:

September 14 80.4°F September 09 83.6°F
September 13 81.0°F September 08 84.0°F
September 12 81.6°F September 07 84.0°F
September 11 82.4°F September 06 84.8°F
September 10 83.0°F September 05 85.8°F

When is the Warmest Sea for Koper?

According to our data for the last three years for Koper the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2024 2023 2022

The average sea surface temperature in August 2024 for Koper was 84.8°F. The maximum and minimum values were 82.0°F and 88.8°F respectively.

Sea Water Temperature in July

Select Year: 2024 2023 2022

The average sea surface temperature in July 2024 for Koper was 83.5°F. The maximum and minimum values were 80.4°F and 88.4°F respectively.

Sea Water Temperature in September

Select Year: 2023 2022 2021

The average sea surface temperature in September 2023 for Koper was 78.3°F. The maximum and minimum values were 75.8°F and 81.4°F respectively.

Best Time to Visit Koper
The most sunny months:
July 23 days
August 23 days
June 20 days
The most warm months:
August 89.1 °F
July 88.9 °F
June 83.4 °F
Warmest sea temperature:
August 81.7 °F
July 81.2 °F
September 76.2 °F
The most cold months:
January 44.9 °F
December 47.6 °F
February 47.9 °F
The most rainy months:
November 7 days
May 7 days
September 7 days
The most windy months:
February 6 mph
March 6 mph
November 6 mph

Koper on the Weather Map

Slovenia Resorts:
NAME
Bled +50
Bohinjsko Jezero +70
Bovec +64
Cerkno +70
Dolenjske Toplice +52
Isola +66
Koper +64
Kranjska Gora +56
Ljubljana +58
Maribor +50
Moravske Toplice +52
Piran +64
Portoroz +66
Rogaska Slatina +60
Strunjan +66
24 Hours Weather Forecast
Koper
Local time: 12:55
14 sep, saturday
1500 62°F
SE
5 mph
1800 54°F
W
2 mph
2100 54°F
S
2 mph
15 sep, sunday
0000 52°F
SE
3 mph
0300 52°F
SE
3 mph
0600 52°F
S
1 mph
0900 58°F
E
0 mph
1200 64°F
E
2 mph