Current sea water temperature:
+54.3°F
| Minimum sea water temperature in April: | 62.8°F |
| Maximum sea water temperature in April: | 50.2°F |
| Average sea water temperature in April: | 55.8°F |
| more information | |
14 days
forecast
forecast
| Istria |
monthly
weather
weather
| Istria |
Sea water temperature for the last 10 days:
| April 5 | 54.3°F | March 31 | 53.1°F |
| April 4 | 54.0°F | March 30 | 53.4°F |
| April 3 | 53.2°F | March 29 | 53.8°F |
| April 2 | 53.6°F | March 28 | 53.4°F |
| April 1 | 53.2°F | March 27 | 53.2°F |
Monthly sea water temperature, °F
When is the warmest sea in Istria?
Based on the data about daily sea water temperature for the last three years the warmest sea in Istria was noticed in August, July and September.
Monthly Sea Temperatures in Istria, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 76.5°F. The highest and lowest sea temperatures during the month were 78.4°F and 75.0°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 77.9°F. The highest and lowest sea temperatures during the month were 80.1°F and 76.1°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 74.8°F. The highest and lowest sea temperatures during the month were 76.5°F and 72.7°F.
current
weather
weather
| Istria |
weather in
April
April
| Istria |
Best time for vacation in Istria
Istria on a weather map
Places in Croatia:
Name
°F
24 Hours Forecast
Istria
Local time: 08:21
April 06, monday
0900
59°F
NW
1 mph
1 mph
1200
63°F
NE
4 mph
4 mph
1500
63°F
NE
6 mph
6 mph
1800
61°F
N
4 mph
4 mph
2100
55°F
W
4 mph
4 mph
April 07, tuesday
0000
55°F
NW
3 mph
3 mph
0300
54°F
W
2 mph
2 mph
0600
54°F
W
2 mph
2 mph
