Current sea water temperature:
+61.5°F
| Minimum sea water temperature in December: | 65.3°F |
| Maximum sea water temperature in December: | 59.0°F |
| Average sea water temperature in December: | 62.1°F |
| more information | |
14 days
forecast
forecast
| Ostia |
monthly
weather
weather
| Ostia |
Sea water temperature for the last 10 days:
| December 24 | 61.5°F | December 19 | 62.1°F |
| December 23 | 61.5°F | December 18 | 62.1°F |
| December 22 | 61.7°F | December 17 | 62.2°F |
| December 21 | 62.1°F | December 16 | 61.7°F |
| December 20 | 62.1°F | December 15 | 61.9°F |
Monthly sea water temperature, °F
When is the warmest sea in Ostia?
Based on the data about daily sea water temperature for the last three years the warmest sea in Ostia was noticed in August, July and September.
Monthly Sea Temperatures in Ostia, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 77.9°F. The highest and lowest sea temperatures during the month were 80.2°F and 73.8°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 78.7°F. The highest and lowest sea temperatures during the month were 83.1°F and 74.5°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 76.8°F. The highest and lowest sea temperatures during the month were 77.9°F and 74.7°F.
current
weather
weather
| Ostia |
weather in
December
December
| Ostia |
Best time for vacation in Ostia
Ostia on a weather map
Places in Italy:
Name
°F
24 Hours Forecast
Ostia
Local time: 22:10
December 25, thursday
0000
55°F
N
16 mph
16 mph
0300
55°F
NW
13 mph
13 mph
0600
52°F
W
11 mph
11 mph
0900
52°F
SW
9 mph
9 mph
1200
55°F
SW
10 mph
10 mph
1500
57°F
SW
8 mph
8 mph
1800
52°F
SW
8 mph
8 mph
2100
52°F
SW
9 mph
9 mph
