Current Sea Water Temperature:
+58.4°F
| Maximum Sea Water Temperature in January: | 62.8°F |
| Minimum Sea Water Temperature in January: | 57.4°F |
| Average water temperature in January: | 60.0°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| January 27 | 58.4°F | January 22 | 59.4°F |
| January 26 | 59.4°F | January 21 | 58.8°F |
| January 25 | 59.8°F | January 20 | 58.6°F |
| January 24 | 59.8°F | January 19 | 58.6°F |
| January 23 | 59.6°F | January 18 | 59.6°F |
When is the Warmest Sea for Ostia?
According to our data for the last three years for Ostia the highest average sea water temperature was in August, July and September.
Average Water Temperature by Month, °F
Sea Water Temperature in August
The average sea surface temperature in August 2025 for Ostia was 81.0°F. The maximum and minimum values were 76.4°F and 83.6°F respectively.
Sea Water Temperature in July
The average sea surface temperature in July 2025 for Ostia was 81.9°F. The maximum and minimum values were 77.2°F and 86.8°F respectively.
Sea Water Temperature in September
The average sea surface temperature in September 2025 for Ostia was 79.8°F. The maximum and minimum values were 77.4°F and 81.0°F respectively.
Italy Resorts:
NAME
F°
| Amalfi |  |
+50 |
| Bari |  |
+52 |
| Cagliari | |
+56 |
| Catania | |
+52 |
| Florence |  |
+46 |
| Genoa | |
+38 |
| Naples | |
+54 |
| Palermo | |
+52 |
| Pisa | |
+52 |
| Reggio di Calabria | |
+50 |
| Rimini |  |
+48 |
| Rome | |
+54 |
| Sicily | |
+46 |
| Tropea | |
+50 |
| Venice | |
+42 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Ostia
Local time: 05:52
28 jan, wednesday
| 0600 |  |
58°F | N 27 mph |
| 0900 | |
60°F | N 22 mph |
| 1200 |  |
56°F | NE 22 mph |
| 1500 | |
56°F | NE 27 mph |
| 1800 | |
54°F | NE 27 mph |
| 2100 | |
54°F | NE 16 mph |
29 jan, thursday
| 0000 | |
52°F | NW 6 mph |
| 0300 | |
52°F | N 5 mph |