Measurements:
°C
°F
CURRENT WEATHER
14:19
Koper
72°F
SE 5 mph
Feels like: 72°F
Precip: 4%
World Resorts Slovenia Koper Weather

7 Day Weather Forecast

10.19
mon
DAY
72°F
SE 2 mph
precip
4%
NIGHT
54°F
NW 4 mph
precip
13%
10.20
tue
DAY
70°F
N 10 mph
precip
9%
NIGHT
64°F
NW 11 mph
precip
27%
10.21
wed
DAY
66°F
N 14 mph
precip
81%
NIGHT
60°F
N 8 mph
precip
67%
10.22
thu
DAY
54°F
SW 15 mph
precip
72%
NIGHT
42°F
W 6 mph
precip
12%
10.23
fri
DAY
60°F
SW 1 mph
precip
6%
NIGHT
44°F
W 4 mph
precip
8%
10.24
sat
DAY
60°F
N 3 mph
precip
13%
NIGHT
46°F
W 5 mph
precip
12%
10.25
sun
DAY
58°F
SW 4 mph
precip
13%
NIGHT
48°F
W 2 mph
precip
19%

Koper Sea Water Temperature in October, °F

Select Year: 2026 2025 2024

The average sea surface temperature in October 2026 for Koper was 22.1°F. The maximum and minimum values were 21.1°F and 23.1°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 89.2 °F
July 88.7 °F
June 83.7 °F
Warmest sea temperature:
August 81.7 °F
July 81.3 °F
September 76.7 °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
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