The city is located on the Roman coast, about 25 km (15 mi) away from the center of Rome, and north of the delta of the Tiber, beyond which we find the lido of Ostia. Nearby we find the
The climate is similar to that of Rome, but there are some small differences.
is a little milder, but during periods of bad weather, the southwest wind, the libeccio, can be stronger. Generally, the temperature does not drop below -5 °C (23 °F) even during the coldest periods. In January 1985, the temperature dropped to -8 °C (17.5 °F), against -10/-11 °C (12/14 °F) at the Rome airports.
is less hot, and afternoon thunderstorms from the Apennines are a little rarer. At the end of June 2022, the heat record was broken with 39 °C (102 °F).
The best months for a beach holiday in Ostia and Fiumicino are July and August. In June, the sea is still a little cool.
. Here are the average temperatures.
January, the coldest month of the year, is generally a quite mild month. The average temperature is of
8.5 °C, with a minimum of
3.6 °C and a maximum of
13.3 °C.

On the coldest nights of the month, the temperature usually drops to around
-2 °C. However, it dropped to
-5.3 °C in January 2002.

On the warmest days of the month, the temperature usually reaches around
17.5 °C. However, it reached
22.1 °C in January 1996.

Precipitation amounts to
80 mm, distributed over 9 days.
The day lasts on average 9 hours and 30 minutes.

There are on average 4.5 hours of sunshine per day. So, the sun shines 46% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is of
12.5 kph.

The average sea temperature is of
14.8 °C. Therefore, the sea is cold for swimming.
February is generally a mild month. The average temperature is of
8.8 °C, with a minimum of
3.7 °C and a maximum of
13.9 °C.

On the coldest nights of the month, the temperature usually drops to around
-2 °C. However, it dropped to
-5 °C in February 2018.

On the warmest days of the month, the temperature usually reaches around
18 °C. However, it reached
22.1 °C in February 2019.

Precipitation amounts to
75 mm, distributed over 8 days.
The day lasts on average 10 hours and 35 minutes.

There are on average 5 hours of sunshine per day. So, the sun shines 48% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is of
13.2 kph.

The average sea temperature is of
14.2 °C. Therefore, the sea is very cold for swimming.
March is generally a mild month. The average temperature is of
10.9 °C, with a minimum of
5.7 °C and a maximum of
16.1 °C.

On the coldest nights of the month, the temperature usually drops to around
0 °C. However, it dropped to
-4.5 °C in March 1996.

On the warmest days of the month, the temperature usually reaches around
21 °C. However, it reached
26.3 °C in March 1991.

Precipitation amounts to
65 mm, distributed over 8 days.
The day lasts on average 12 hours and 0 minutes.

There are on average 6 hours of sunshine per day. So, the sun shines 49% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is of
13.2 kph.

The average sea temperature is of
14.4 °C. Therefore, the sea is very cold for swimming.
April is generally a mild month. The average temperature is of
13.4 °C, with a minimum of
8 °C and a maximum of
18.8 °C.

On the coldest nights of the month, the temperature usually drops to around
3 °C. However, it dropped to
-0.9 °C in April 1995.

On the warmest days of the month, the temperature usually reaches around
24 °C. However, it reached
28.4 °C in April 2013.

Precipitation amounts to
55 mm, distributed over 7 days.
The day lasts on average 13 hours and 25 minutes.

There are on average 7.5 hours of sunshine per day. So, the sun shines 54% of the time.
The average humidity is 74%. Hence, the air is normally humid.
The average wind speed is of
12.6 kph.

The average sea temperature is of
15.5 °C. Therefore, the sea is cold for swimming.
May is generally a very mild month. The average temperature is of
17.5 °C, with a minimum of
11.9 °C and a maximum of
23.1 °C.

On the coldest nights of the month, the temperature usually drops to around
7 °C. However, it dropped to
5 °C in May 1991.

On the warmest days of the month, the temperature usually reaches around
28.5 °C. However, it reached
33.1 °C in May 2008.

Precipitation amounts to
30 mm, distributed over 4 days.
The day lasts on average 14 hours and 35 minutes. So the days are long.

There are on average 9 hours of sunshine per day. So, the sun shines 63% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is of
11.9 kph.

The average sea temperature is of
18.5 °C. Therefore, the sea is very cool for swimming.
June is generally a warm month. The average temperature is of
21.4 °C, with a minimum of
15.8 °C and a maximum of
27 °C.

On the coldest nights of the month, the temperature usually drops to around
10.5 °C. However, it dropped to
8.9 °C in June 2005.

On the warmest days of the month, the temperature usually reaches around
32 °C. However, it reached
36.5 °C in June 2019.

Precipitation amounts to
15 mm, distributed over 2 days.
The day lasts on average 15 hours and 10 minutes. So the days are long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.

There are on average 10.5 hours of sunshine per day. So, the sun shines 68% of the time.
The average humidity is 70%. Hence, the air is normally humid.
The average wind speed is of
12.1 kph.

The average sea temperature is of
22.1 °C. Therefore, the sea is cool for swimming.
July is generally a warm to hot month. The average temperature is of
24 °C, with a minimum of
18.4 °C and a maximum of
29.5 °C.

On the coldest nights of the month, the temperature usually drops to around
14 °C. However, it dropped to
11.9 °C in July 2000.

On the warmest days of the month, the temperature usually reaches around
34 °C. However, it reached
38.1 °C in July 2005.

Precipitation amounts to
14.7 mm, distributed over 2 days.
The day lasts on average 14 hours and 50 minutes. So the days are long.

There are on average 11.5 hours of sunshine per day. So, the sun shines 79% of the time.
The average humidity is 69%.
The average wind speed is of
12.1 kph.

The average sea temperature is of
25.1 °C. Therefore, the sea is warm enough for swimming.
August, the warmest month of the year, is generally a warm to hot, muggy month. The average temperature is of
24.6 °C, with a minimum of
19.1 °C and a maximum of
30.1 °C.

On the coldest nights of the month, the temperature usually drops to around
15 °C. However, it dropped to
13.4 °C in August 1998.

On the warmest days of the month, the temperature usually reaches around
34 °C. However, it reached
37.1 °C in August 1998.

Precipitation amounts to
35 mm, distributed over 3 days.
The day lasts on average 13 hours and 50 minutes.

There are on average 10.5 hours of sunshine per day. So, the sun shines 76% of the time.
The average humidity is 70%. Hence, the air is normally humid.
The average wind speed is of
11.7 kph.

The average sea temperature is of
26.1 °C. Therefore, the sea is warm enough for swimming.
September is generally a warm month. The average temperature is of
21.1 °C, with a minimum of
15.9 °C and a maximum of
26.3 °C.

On the coldest nights of the month, the temperature usually drops to around
10 °C. However, it dropped to
8.3 °C in September 2007.

On the warmest days of the month, the temperature usually reaches around
30.5 °C. However, it reached
33 °C in September 2015.

Precipitation amounts to
70 mm, distributed over 4 days.
The day lasts on average 12 hours and 25 minutes.

There are on average 8.5 hours of sunshine per day. So, the sun shines 69% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is of
11.8 kph.

The average sea temperature is of
24.3 °C. Therefore, the sea is warm enough for swimming.
October is generally a very mild month. The average temperature is of
17.5 °C, with a minimum of
12.4 °C and a maximum of
22.5 °C.

On the coldest nights of the month, the temperature usually drops to around
6.5 °C. However, it dropped to
2.9 °C in October 1994.

On the warmest days of the month, the temperature usually reaches around
26.5 °C. However, it reached
30.4 °C in October 1990.

Precipitation amounts to
95 mm, distributed over 7 days.
The day lasts on average 11 hours and 0 minutes.

There are on average 7 hours of sunshine per day. So, the sun shines 63% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is of
11.7 kph.

The average sea temperature is of
21.7 °C. Therefore, the sea is cool for swimming.
November is generally a mild month. The average temperature is of
13.2 °C, with a minimum of
8.6 °C and a maximum of
17.9 °C.

On the coldest nights of the month, the temperature usually drops to around
2 °C. However, it dropped to
-1.4 °C in November 1995.

On the warmest days of the month, the temperature usually reaches around
23 °C. However, it reached
26.5 °C in November 1999.

Precipitation amounts to
110 mm, distributed over 10 days.
The day lasts on average 9 hours and 50 minutes.

There are on average 5 hours of sunshine per day. So, the sun shines 49% of the time.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is of
12.7 kph.

The average sea temperature is of
18.8 °C. Therefore, the sea is very cool for swimming.
December is generally a mild month. The average temperature is of
9.6 °C, with a minimum of
4.9 °C and a maximum of
14.2 °C.

On the coldest nights of the month, the temperature usually drops to around
-1 °C. However, it dropped to
-4.7 °C in December 1996.

On the warmest days of the month, the temperature usually reaches around
18.5 °C. However, it reached
20.6 °C in December 1993.

Precipitation amounts to
90 mm, distributed over 9 days.
The day lasts on average 9 hours and 10 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.

There are on average 4 hours of sunshine per day. So, the sun shines 44% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is of
12.9 kph.

The average sea temperature is of
16.4 °C. Therefore, the sea is cold for swimming.