Measurements:
°C
°F
Ostia
54°F
W 7 mph
Feels like: 50°F
Precip: 100%
World Resorts Italy Ostia Weather August Weather in Ostia

Ostia Weather: August

Average Day Temperature: 90.2°F
Average Night Temperature: 78.8°F
Sea Water Temperature: 82.3°F
Number of Sunny Days: 28 days
Sunshine Hours: 13.2 - 14.4 hours
Number of Rainy Days: 1 day
Precipitation Totals: 0.4 in

Air Temperature in August, °F

Select Year: 2025 2024 2023

The highest day temperature in August 2025 was 91°F. The lowest night temperature was 68°F. The average values for day and night temperatures during August were 85.1°F и 76.5°F respectivly.

Ostia Water Sea Temperature in August, °F

Select Year: 2025 2024 2023

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.

Sunny, Cloudy and Gloomy days

Most of the days in August are sunny but you can also expect cloudy and gloomy days.

Precipitation Totals in August, in

Precipitation total in August for Ostia is 0.4 in. It makes august the least rainy month of the year.

Wind Speed in August, mph

The average wind speed in August is 7.8 mph. This value is relatively stable throughout the year.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Ostia in August is 12.3 hours.

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 56.4 °F
December 58.2 °F
The most rainy months:
November 6 days
March 5 days
December 4 days
The most windy months:
February 9 mph
November 9 mph
January 9 mph

Ostia on the Weather Map

Italy Resorts:
NAME
Amalfi +48
Bari +54
Cagliari +48
Catania +52
Florence +48
Genoa +48
Naples +56
Palermo +52
Pisa +50
Rimini +50
Rome +50
Scalea +40
Sicily +44
Tropea +54
Venice +48
24 Hours Weather Forecast
Ostia
Local time: 05:41
05 dec, friday
0600 54°F
W
7 mph
0900 52°F
SW
7 mph
1200 58°F
SW
8 mph
1500 58°F
S
7 mph
1800 56°F
S
7 mph
2100 54°F
S
7 mph
06 dec, saturday
0000 52°F
S
7 mph
0300 50°F
S
7 mph