Average sea water temperature in May:
+66.0°F
| Minimum sea water temperature in May: | 72.5°F |
| Maximum sea water temperature in May: | 61.0°F |
Daily sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 66.0°F. The highest and lowest sea temperatures during the month were 69.6°F and 63.7°F.
Monthly sea water temperature in Ischia, °F
Which Italy resorts have warmest sea in May?
| Place name | May 2026 | May 2025 |
|---|---|---|
| Cefalu | 66.6°F | 67.4°F |
| Sicily | 66.6°F | 67.1°F |
| Scalea | 66.3°F | 67.5°F |
| Padova | 66.2°F | 68.0°F |
| Abano Terme | 66.2°F | 68.0°F |
| Recco | 66.2°F | 66.7°F |
| Camogli | 66.2°F | 66.6°F |
| Portofino | 66.1°F | 66.6°F |
| Santa Margherita Ligure | 66.1°F | 66.6°F |
| La Spezia | 66.1°F | 66.6°F |
| Lampedusa | 66.1°F | 67.2°F |
| Riomaggiore | 66.1°F | 66.6°F |
| Rapallo | 66.1°F | 66.6°F |
| Viareggio | 66.1°F | 66.9°F |
| Forte dei Marmi | 66.0°F | 66.7°F |
| Venice | 66.0°F | 67.3°F |
| Genoa | 66.0°F | 66.7°F |
| Lerici | 66.0°F | 66.6°F |
| Palermo | 66.0°F | 66.8°F |
| Cagliari | 66.0°F | 66.5°F |
Best time for vacation in Ischia
Ischia on a weather map
Places in Italy:
Name
°F
24 Hours Forecast
Ischia
Local time: 19:53
May 27, wednesday
2100

70°F
E
4 mph
4 mph
May 28, thursday
0000

70°F
NE
3 mph
3 mph
0300

70°F
NE
3 mph
3 mph
0600

70°F
NW
2 mph
2 mph
0900

70°F
NW
8 mph
8 mph
1200

70°F
N
7 mph
7 mph
1500

72°F
NE
8 mph
8 mph
1800

72°F
S
11 mph
11 mph




























