Measurements:
°C
°F
Isola
32°F
W 4 mph
Feels like: 28°F
Precip: 0%
World Resorts Slovenia Isola Weather

Isola Sea Water Temperature

Current Sea Water Temperature:
+50.8°F
Maximum Sea Water Temperature in January: 55.4°F
Minimum Sea Water Temperature in January: 46.4°F
Average water temperature in January: 51.0°F

Sea Water Temperature for the Last 10 Days:

January 09 50.8°F January 04 53.2°F
January 08 52.4°F January 03 53.6°F
January 07 53.2°F January 02 53.6°F
January 06 53.2°F January 01 54.0°F
January 05 53.6°F December 31 54.2°F

When is the Warmest Sea for Isola?

According to our data for the last three years for Isola 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: 2025 2024 2023

The average sea surface temperature in August 2025 for Isola was 79.9°F. The maximum and minimum values were 77.0°F and 82.8°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Isola was 82.0°F. The maximum and minimum values were 79.6°F and 85.2°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Isola was 77.9°F. The maximum and minimum values were 75.6°F and 80.2°F respectively.

Best Time to Visit Isola
The most sunny months:
August 23 days
July 22 days
June 20 days
The most warm months:
August 88.8 °F
July 88.6 °F
June 83.4 °F
Warmest sea temperature:
August 81.6 °F
July 81.3 °F
September 76.6 °F
The most cold months:
January 45.1 °F
December 47.8 °F
February 47.8 °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

Isola on the Weather Map

Slovenia Resorts:
NAME
Bled +22
Bohinjsko Jezero +22
Cerkno +28
Dolenjske Toplice +28
Isola +32
Koper +32
Kranjska Gora +22
Ljubljana +30
Maribor +26
Moravske Toplice +24
Piran +32
Portoroz +32
Rogaska Slatina +30
Rogla +30
Strunjan +32
24 Hours Weather Forecast
Isola
Local time: 02:25
10 jan, saturday
0300 32°F
W
4 mph
0600 34°F
SW
7 mph
0900 38°F
W
12 mph
1200 44°F
SW
9 mph
1500 42°F
SW
8 mph
1800 36°F
SW
6 mph
2100 30°F
W
5 mph
11 jan, sunday
0000 30°F
W
4 mph