Current sea water temperature:
+59.0°F
| Minimum sea water temperature in December: | 63.9°F |
| Maximum sea water temperature in December: | 55.6°F |
| Average sea water temperature in December: | 59.9°F |
| more information | |
14 days
forecast
forecast
| San Giuliano |
monthly
weather
weather
| San Giuliano |
Sea water temperature for the last 10 days:
| December 16 | 59.0°F | December 11 | 58.1°F |
| December 15 | 58.6°F | December 10 | 58.8°F |
| December 14 | 57.7°F | December 9 | 58.8°F |
| December 13 | 57.9°F | December 8 | 60.4°F |
| December 12 | 58.1°F | December 7 | 60.3°F |
Monthly sea water temperature, °F
When is the warmest sea in San Giuliano?
Based on the data about daily sea water temperature for the last three years the warmest sea in San Giuliano was noticed in August, July and September.
Monthly Sea Temperatures in San Giuliano, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 78.9°F. The highest and lowest sea temperatures during the month were 80.8°F and 77.4°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 78.8°F. The highest and lowest sea temperatures during the month were 81.7°F and 75.9°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 75.6°F. The highest and lowest sea temperatures during the month were 77.7°F and 72.3°F.
current
weather
weather
| San Giuliano |
weather in
December
December
| San Giuliano |
Best time for vacation in San Giuliano
San Giuliano on a weather map
Places in Italy:
Name
°F
24 Hours Forecast
San Giuliano
Local time: 15:12
December 16, tuesday
1800
50°F
W
12 mph
12 mph
2100
52°F
SW
11 mph
11 mph
December 17, wednesday
0000
50°F
W
11 mph
11 mph
0300
50°F
W
11 mph
11 mph
0600
50°F
SW
6 mph
6 mph
0900
52°F
SW
7 mph
7 mph
1200
52°F
W
6 mph
6 mph
1500
54°F
W
6 mph
6 mph
