Current Sea Water Temperature:
+86.8°F
| Maximum Sea Water Temperature in July: | 87.2°F |
| Minimum Sea Water Temperature in July: | 74.0°F |
| Average water temperature in July: | 81.4°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| July 16 | 86.8°F | July 11 | 84.8°F |
| July 15 | 85.4°F | July 10 | 84.6°F |
| July 14 | 85.2°F | July 09 | 84.4°F |
| July 13 | 85.0°F | July 08 | 84.0°F |
| July 12 | 84.4°F | July 07 | 83.0°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
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
The average sea surface temperature in July 2026 for Costa Rei was 83.7°F. The maximum and minimum values were 80.8°F and 86.8°F respectively.
Sea Water Temperature in September
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.
Italy Resorts:
NAME
F°
| Baia Domizia |  |
+98 |
| Bari | |
+92 |
| Bibione |  |
+92 |
| Florence | |
+108 |
| Genoa | |
+86 |
| Lido di Jesolo | |
+90 |
| Naples | |
+90 |
| Palermo | |
+96 |
| Rimini | |
+88 |
| Rome | |
+100 |
| Sanremo |  |
+86 |
| Scalea | |
+92 |
| Sicily | |
+108 |
| Tropea | |
+88 |
| Venice | |
+90 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Costa Rei
Local time: 18:55
16 jul, thursday
| 2100 |  |
84°F | NW 2 mph |
17 jul, friday
| 0000 | |
78°F | SE 2 mph |
| 0300 | |
78°F | SE 2 mph |
| 0600 | |
76°F | SE 2 mph |
| 0900 |  |
94°F | SE 4 mph |
| 1200 | |
104°F | NE 4 mph |
| 1500 | |
108°F | NE 6 mph |
| 1800 | |
108°F | SE 11 mph |