Current sea water temperature:
+69.4°F
| Minimum sea water temperature in May: | 70.3°F |
| Maximum sea water temperature in May: | 59.5°F |
| Average sea water temperature in May: | 64.5°F |
| more information | |
14 days
forecast
forecast
| Costa Rei |
monthly
weather
weather
| Costa Rei |
Sea water temperature for the last 10 days:
| May 29 | 69.4°F | May 24 | 66.6°F |
| May 28 | 69.3°F | May 23 | 66.0°F |
| May 27 | 69.6°F | May 22 | 65.7°F |
| May 26 | 68.4°F | May 21 | 65.1°F |
| May 25 | 67.3°F | May 20 | 64.6°F |
Monthly sea water temperature, °F
When is the warmest sea in Costa Rei?
Based on the data about daily sea water temperature for the last three years the warmest sea in Costa Rei was noticed in August, July and September.
Monthly Sea Temperatures in Costa Rei, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 80.3°F. The highest and lowest sea temperatures during the month were 81.5°F and 78.8°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 80.2°F. The highest and lowest sea temperatures during the month were 81.3°F and 79.0°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 78.8°F. The highest and lowest sea temperatures during the month were 79.5°F and 77.4°F.
current
weather
weather
| Costa Rei |
weather in
June
June
| Costa Rei |
Best time for vacation in Costa Rei
Costa Rei on a weather map
Places in Italy:
Name
°F
24 Hours Forecast
Costa Rei
Local time: 05:38
May 30, saturday
0600
63°F
SW
2 mph
2 mph
0900
73°F
N
2 mph
2 mph
1200
77°F
N
8 mph
8 mph
1500
77°F
N
12 mph
12 mph
1800
75°F
N
2 mph
2 mph
2100
68°F
N
1 mph
1 mph
May 31, sunday
0000
64°F
NW
3 mph
3 mph
0300
64°F
S
2 mph
2 mph
