World Resorts Italy Ostia Weather

Ostia 7 Days Forecast

17.05
sun
Day
63°F
N 8 mph
Precip.
0%
Night
59°F
SE 5 mph
Precip.
0%
18.05
mon
Day
64°F
NE 7 mph
Precip.
0%
Night
59°F
S 4 mph
Precip.
0%
19.05
tue
Day
66°F
NE 6 mph
Precip.
0%
Night
63°F
S 5 mph
Precip.
0%
20.05
wed
Day
68°F
E 9 mph
Precip.
0%
Night
63°F
SE 7 mph
Precip.
0%
21.05
thu
Day
72°F
NE 3 mph
Precip.
0%
Night
64°F
SW 7 mph
Precip.
0%
22.05
fri
Day
75°F
NW 6 mph
Precip.
0%
Night
66°F
W 7 mph
Precip.
0%
23.05
sat
Day
75°F
SE 6 mph
Precip.
0%
Night
66°F
NE 6 mph
Precip.
0%

Sea water temperature in May, °F

Show year:
2026
2025
2024

The average sea water temperature in May of 2026 was 64.5°F. The highest and lowest sea temperatures during the month were 65.8°F and 63.3°F.

Air temperature in Ostia, °F

Precipitation total in Ostia, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Ostia

Sunniest months:
July 29 days
August 28 days
June 26 days
Warmest months:
August 86.2 °F
July 85.5 °F
June 79.8 °F
Warmest sea temp:
August 79.1 °F
July 77.9 °F
September 76.1 °F
Coldest months:
January 54.7 °F
February 55.9 °F
December 57.3 °F
Rainiest months:
November 6 days
December 4 days
January 4 days
Windiest months:
February 9.8 mph
November 9.7 mph
January 9.7 mph

Ostia on a weather map

Current weather
04:03
Ostia
+54°F
SW 7 mph
Feels like: +52°F
Precip.: 0%
Places in Italy:
Name
°F
Amalfi
+55°F
Bari
+57°F
Bibione
+46°F
Venice
+52°F
Genoa
+48°F
Cagliari
+50°F
Catania
+59°F
Lido di Jesolo
+52°F
Naples
+59°F
Palermo
+57°F
Rome
+50°F
Rimini
+52°F
Sicily
+50°F
Tropea
+57°F
Florence
+45°F
all places
24 Hours Forecast
Ostia
Local time: 04:03
May 17, sunday
0600
52°F
SW
9 mph
0900
59°F
NW
4 mph
1200
63°F
N
8 mph
1500
64°F
NE
8 mph
1800
64°F
E
6 mph
2100
61°F
E
4 mph
May 18, monday
0000
59°F
SE
5 mph
0300
55°F
S
3 mph
Units of measurement: °C / °F