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Ostia weather in September

Weather in Ostia: September

Average day temperature: 79.7°F
Average night temperature: 70.4°F
Sea water temperature: 76.1°F
Number of sunny days: 22 days
Day length: 11.8 - 13.1 hours
Number of rainy days: 4 days
Precipitation totals: 2.2 in.

Air temperature in September, °F

Show year:
2024
2023
2022

The highest day temperature during September of 2024 was 84°F. At the same time the lowest night temperature was 59°F. Day and night temperature averages during September were 75.8°F and 69.3°F.

Sea water temperature in Ostia in September, °F

Show year:
2024
2023
2022

The average sea water temperature in September of 2024 was 77.0°F. The highest and lowest sea temperatures during the month were 81.9°F and 72.7°F.

Sunny, partly cloudy and cloudy days

Mostly all days in September are sunny but cloudy days are also possible.

Precipitation total in September, in.

Precipitation total value in Ostia in September is 1.9 in. Other months of the year show relatively similar values.

Wind speed in September, mph

The average wind speed value in September is 8.5 mph It makes September one of the least windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 9.3.

Best time for vacation in Ostia

Sunniest months:
July 29 days
August 28 days
June 26 days
Warmest months:
August 86.5 °F
July 85.8 °F
June 79.8 °F
Warmest sea temp:
August 79.2 °F
July 77.8 °F
September 76.1 °F
Coldest months:
January 54.6 °F
February 55.8 °F
December 57.6 °F
Rainiest months:
November 6 days
December 5 days
March 5 days
Windiest months:
February 9.9 mph
November 9.8 mph
January 9.6 mph

Ostia on a weather map

Ostia
+52°F
NW 16 mph
Feels like: +46°F
Precip.: 100%
Places in Italy:
Name
°F
+52°F
+52°F
+41°F
+48°F
+52°F
+57°F
+55°F
+52°F
+55°F
+48°F
+50°F
+52°F
+39°F
+48°F
24 Hours Forecast
Ostia
Local time: 12:45
December 22, sunday
1500
54°F
N
21 mph
1800
54°F
NW
9 mph
2100
55°F
E
18 mph
December 23, monday
0000
57°F
E
29 mph
0300
52°F
SE
25 mph
0600
46°F
SE
22 mph
0900
46°F
SE
30 mph
1200
48°F
S
32 mph
Units of measurement: °C / °F