Measurements:
°C
°F
Costa Rei
92°F
NE 7 mph
Feels like: 92°F
Precip: 1%
World Resorts Italy Costa Rei Weather

Costa Rei Sea Water Temperature

Current Sea Water Temperature:
+82.6°F
Maximum Sea Water Temperature in June: 83.8°F
Minimum Sea Water Temperature in June: 65.2°F
Average water temperature in June: 74.4°F

Sea Water Temperature for the Last 10 Days:

June 26 82.6°F June 21 80.2°F
June 25 82.2°F June 20 79.0°F
June 24 81.8°F June 19 79.0°F
June 23 80.8°F June 18 77.6°F
June 22 79.8°F June 17 76.2°F

When is the Warmest Sea for Costa Rei?

According to our data for the last three years for Costa Rei 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 Costa Rei was 83.7°F. The maximum and minimum values were 82.0°F and 85.0°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Costa Rei was 83.5°F. The maximum and minimum values were 82.2°F and 84.8°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Costa Rei was 82.0°F. The maximum and minimum values were 80.4°F and 82.8°F respectively.

Best Time to Visit Costa Rei
The most sunny months:
July 29 days
August 28 days
June 26 days
The most warm months:
July 93.0 °F
August 92.9 °F
June 85.9 °F
Warmest sea temperature:
August 83.6 °F
July 81.3 °F
September 80.8 °F
The most cold months:
January 57.3 °F
February 58.3 °F
December 60.1 °F
The most rainy months:
November 3 days
October 2 days
March 2 days
The most windy months:
January 10 mph
March 10 mph
February 9 mph

Costa Rei on the Weather Map

Italy Resorts:
NAME
Amalfi +94
Bari +88
Bibione +96
Florence +104
Genoa +90
Lido di Jesolo +94
Naples +90
Palermo +88
Rimini +88
Rome +98
Sanremo +86
Scalea +86
Sicily +92
Tropea +84
Venice +94
24 Hours Weather Forecast
Costa Rei
Local time: 13:17
26 jun, friday
1500 90°F
N
14 mph
1800 86°F
S
4 mph
2100 78°F
S
1 mph
27 jun, saturday
0000 74°F
E
1 mph
0300 74°F
S
2 mph
0600 72°F
W
2 mph
0900 86°F
N
2 mph
1200 92°F
N
7 mph