Measurements:
°C
°F
Ostia
82°F
N 4 mph
Feels like: 88°F
Precip: 8%
World Resorts Italy Ostia Weather

7 Day Weather Forecast

07.11
sat
DAY
88°F
N 11 mph
precip
5%
NIGHT
80°F
N 2 mph
precip
9%
07.12
sun
DAY
88°F
NE 7 mph
precip
2%
NIGHT
80°F
SE 7 mph
precip
8%
07.13
mon
DAY
88°F
E 9 mph
precip
3%
NIGHT
82°F
SE 6 mph
precip
7%
07.14
tue
DAY
90°F
NE 6 mph
precip
2%
NIGHT
82°F
SW 2 mph
precip
10%
07.15
wed
DAY
88°F
NE 7 mph
precip
3%
NIGHT
82°F
SE 5 mph
precip
6%
07.16
thu
DAY
90°F
NE 7 mph
precip
3%
NIGHT
82°F
N 2 mph
precip
10%
07.17
fri
DAY
88°F
N 8 mph
precip
4%
NIGHT
82°F
SE 5 mph
precip
9%

Ostia Sea Water Temperature in July, °F

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Ostia was 26.0°F. The maximum and minimum values were 23.6°F and 28.4°F respectively.

Ostia on the Weather Map

Best Time to Visit Ostia
The most sunny months:
July 29 days
August 28 days
June 26 days
The most warm months:
August 90.2 °F
July 89.5 °F
June 83.1 °F
Warmest sea temperature:
August 82.3 °F
July 81.0 °F
September 79.0 °F
The most cold months:
January 55.2 °F
February 56.5 °F
December 58.1 °F
The most rainy months:
November 6 days
December 4 days
January 4 days
The most windy months:
February 9 mph
November 9 mph
January 9 mph