Current sea water temperature:
+54.1°F
| Minimum sea water temperature in January: | 56.5°F |
| Maximum sea water temperature in January: | 50.4°F |
| Average sea water temperature in January: | 53.1°F |
| more information | |
14 days
forecast
forecast
| Rijeka |
monthly
weather
weather
| Rijeka |
Sea water temperature for the last 10 days:
| January 11 | 54.1°F | January 6 | 54.7°F |
| January 10 | 53.8°F | January 5 | 55.0°F |
| January 9 | 54.3°F | January 4 | 55.6°F |
| January 8 | 55.0°F | January 3 | 55.9°F |
| January 7 | 55.0°F | January 2 | 55.8°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
January
January
| Rijeka |
Best time for vacation in Rijeka
Rijeka on a weather map
Places in Croatia:
Name
°F
24 Hours Forecast
Rijeka
Local time: 03:12
January 12, monday
0600
32°F
W
1 mph
1 mph
0900
36°F
NW
1 mph
1 mph
1200
39°F
NE
2 mph
2 mph
1500
37°F
NE
3 mph
3 mph
1800
37°F
N
2 mph
2 mph
2100
36°F
SW
0 mph
0 mph
January 13, tuesday
0000
34°F
SE
1 mph
1 mph
0300
30°F
NE
1 mph
1 mph
