Measurements:
°C
°F
CURRENT WEATHER
01:31
Koper
74°F
W 6 mph
Feels like: 74°F
Precip: 2%
World Resorts Slovenia Koper Weather

7 Day Weather Forecast

06.27
sat
DAY
100°F
E 4 mph
precip
1%
NIGHT
76°F
W 5 mph
precip
2%
06.28
sun
DAY
98°F
E 5 mph
precip
1%
NIGHT
80°F
W 4 mph
precip
4%
06.29
mon
DAY
104°F
S 3 mph
precip
2%
NIGHT
76°F
W 2 mph
precip
4%
06.30
tue
DAY
100°F
S 3 mph
precip
1%
NIGHT
72°F
W 4 mph
precip
24%
07.01
wed
DAY
94°F
SE 4 mph
precip
1%
NIGHT
68°F
W 7 mph
precip
38%
07.02
thu
DAY
88°F
NW 4 mph
precip
3%
NIGHT
72°F
W 4 mph
precip
5%
07.03
fri
DAY
92°F
E 5 mph
precip
2%
NIGHT
72°F
W 4 mph
precip
6%

Koper Sea Water Temperature in June, °F

Select Year: 2026 2025 2024

The average sea surface temperature in June 2026 for Koper was 23.9°F. The maximum and minimum values were 21.5°F and 27.9°F respectively.

Koper on the Weather Map

Best Time to Visit Koper
The most sunny months:
August 23 days
July 22 days
June 20 days
The most warm months:
August 88.9 °F
July 88.7 °F
June 83.6 °F
Warmest sea temperature:
August 81.5 °F
July 81.2 °F
September 76.5 °F
The most cold months:
January 45.0 °F
December 47.8 °F
February 48.1 °F
The most rainy months:
May 7 days
November 6 days
September 6 days
The most windy months:
March 6 mph
February 6 mph
November 6 mph
more details