Measurements:
°C
°F
CURRENT WEATHER
10:08
Koper
82°F
S 3 mph
Feels like: 82°F
Precip: 0%
World Resorts Slovenia Koper Weather

7 Day Weather Forecast

07.18
fri
DAY
84°F
E 7 mph
precip
0%
NIGHT
68°F
W 4 mph
precip
0%
07.19
sat
DAY
88°F
E 7 mph
precip
0%
NIGHT
68°F
W 4 mph
precip
0%
07.20
sun
DAY
90°F
E 7 mph
precip
0%
NIGHT
74°F
W 3 mph
precip
0%
07.21
mon
DAY
88°F
NE 11 mph
precip
0%
NIGHT
70°F
W 5 mph
precip
100%
07.22
tue
DAY
90°F
SE 6 mph
precip
0%
NIGHT
72°F
W 5 mph
precip
0%
07.23
wed
DAY
92°F
NE 6 mph
precip
0%
NIGHT
72°F
W 4 mph
precip
100%
07.24
thu
DAY
82°F
NE 7 mph
precip
100%
NIGHT
68°F
W 6 mph
precip
100%

Koper Sea Water Temperature in July, °F

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Koper was 25.9°F. The maximum and minimum values were 24.7°F and 27.7°F respectively.

Koper on the Weather Map

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 83.6 °F
Warmest sea temperature:
August 81.7 °F
July 81.2 °F
September 76.4 °F
The most cold months:
January 45.1 °F
December 47.6 °F
February 47.9 °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