Current sea water temperature:
+59.7°F
| Minimum sea water temperature in January: | 61.5°F |
| Maximum sea water temperature in January: | 56.7°F |
| Average sea water temperature in January: | 59.0°F |
| more information | |
14 days
forecast
forecast
| Ostia |
monthly
weather
weather
| Ostia |
Sea water temperature for the last 10 days:
| January 13 | 59.7°F | January 8 | 60.3°F |
| January 12 | 59.9°F | January 7 | 60.6°F |
| January 11 | 60.1°F | January 6 | 60.4°F |
| January 10 | 60.1°F | January 5 | 60.6°F |
| January 9 | 60.1°F | January 4 | 60.8°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
January
January
| Ostia |
Best time for vacation in Ostia
Ostia on a weather map
Places in Italy:
Name
°F
24 Hours Forecast
Ostia
Local time: 23:49
January 14, wednesday
0000
52°F
NW
11 mph
11 mph
0300
52°F
NW
9 mph
9 mph
0600
52°F
NW
8 mph
8 mph
0900
54°F
NW
9 mph
9 mph
1200
55°F
NW
11 mph
11 mph
1500
55°F
NW
9 mph
9 mph
1800
55°F
NW
7 mph
7 mph
2100
52°F
NW
6 mph
6 mph
