Current sea water temperature:
+58.6°F
| Minimum sea water temperature in April: | 63.9°F |
| Maximum sea water temperature in April: | 49.6°F |
| Average sea water temperature in April: | 55.8°F |
| more information | |
14 days
forecast
forecast
| Rijeka |
monthly
weather
weather
| Rijeka |
Sea water temperature for the last 10 days:
| April 26 | 58.6°F | April 21 | 58.3°F |
| April 25 | 58.5°F | April 20 | 58.3°F |
| April 24 | 57.2°F | April 19 | 57.2°F |
| April 23 | 57.9°F | April 18 | 57.7°F |
| April 22 | 58.1°F | April 17 | 57.0°F |
Monthly sea water temperature, °F
When is the warmest sea in Rijeka?
Based on the data about daily sea water temperature for the last three years the warmest sea in Rijeka was noticed in August, July and September.
Monthly Sea Temperatures in Rijeka, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 73.6°F. The highest and lowest sea temperatures during the month were 76.1°F and 71.8°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 75.9°F. The highest and lowest sea temperatures during the month were 77.4°F and 74.3°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 72.3°F. The highest and lowest sea temperatures during the month were 73.8°F and 70.7°F.
current
weather
weather
| Rijeka |
weather in
April
April
| Rijeka |
Best time for vacation in Rijeka
Rijeka on a weather map
Places in Croatia:
Name
°F
24 Hours Forecast
Rijeka
Local time: 20:24
April 26, sunday
2100
55°F
SW
7 mph
7 mph
April 27, monday
0000
50°F
SW
11 mph
11 mph
0300
46°F
SW
8 mph
8 mph
0600
46°F
SW
8 mph
8 mph
0900
59°F
SW
7 mph
7 mph
1200
66°F
E
1 mph
1 mph
1500
68°F
NE
4 mph
4 mph
1800
61°F
S
0 mph
0 mph
