Average sea water temperature in May:
+65.2°F
| Minimum sea water temperature in May: | 72.3°F |
| Maximum sea water temperature in May: | 60.6°F |
Daily sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 64.5°F. The highest and lowest sea temperatures during the month were 65.8°F and 63.3°F.
Monthly sea water temperature in Ostia, °F
Which Italy resorts have warmest sea in May?
| Place name | May 2026 | May 2025 |
|---|---|---|
| Cagliari | 65.8°F | 66.5°F |
| Cefalu | 65.8°F | 67.4°F |
| Sicily | 65.8°F | 67.1°F |
| Lampedusa | 65.5°F | 67.2°F |
| Viareggio | 65.4°F | 66.9°F |
| Forte dei Marmi | 65.4°F | 66.7°F |
| Portofino | 65.2°F | 66.6°F |
| Alba Adriatica | 65.2°F | 67.3°F |
| Camogli | 65.2°F | 66.6°F |
| Recco | 65.2°F | 66.7°F |
| Palermo | 65.2°F | 66.8°F |
| Rapallo | 65.2°F | 66.6°F |
| Scalea | 65.1°F | 67.5°F |
| Naples | 65.1°F | 67.4°F |
| Le Grazie | 65.1°F | 66.6°F |
| Ischia | 65.1°F | 67.5°F |
| San Benedetto del Tronto | 65.1°F | 67.2°F |
| Lerici | 65.1°F | 66.6°F |
| La Spezia | 65.1°F | 66.6°F |
| Vernazza | 65.0°F | 66.6°F |
Best time for vacation in Ostia
Ostia on a weather map
Places in Italy:
Name
°F
24 Hours Forecast
Ostia
Local time: 03:10
May 17, sunday
0600
52°F
SW
9 mph
9 mph
0900
59°F
NW
4 mph
4 mph
1200
63°F
N
8 mph
8 mph
1500
64°F
NE
8 mph
8 mph
1800
64°F
E
6 mph
6 mph
2100
61°F
E
4 mph
4 mph
May 18, monday
0000
59°F
SE
5 mph
5 mph
0300
55°F
S
3 mph
3 mph
