Ponza is the largest of the Pontine Islands, an archipelago south of the Lazio region, also formed by the islands of Palmarola, Zannone, Gavi, Ventotene, and Santo Stefano.
The interior of the island is occupied by low hills, which reach 280 meters (920 feet). The weather station is located in Campo Inglese, 185 meters (600 ft) above sea leve. Here, the
of the coldest month (February) is of 10.5 °C (51 °F), that of the warmest month (August) is of 26 °C (79 °F). As you can see, the minimum temperatures are high, as is typical of small islands, where the influence of the sea is greater.
, from December to February, is mild, and is characterized by sunny periods alternating with rainy periods.
It rarely gets very cold, although there can sometimes be cold, windy, and rainy days, with highs around 6/7 °C (43/45 °F).
. Short snowfalls, especially in the upper part of the island, are not so rare, while it is more difficult to see the snow whiten the beaches. In recent decades, snow with accumulation has occurred in January 1993, in January 1999, when the snow reached 20 cm (8 inches), and in late February 2018.
The temperature very rarely drops below freezing, and it does so only after cold waves with moderate or strong north wind, because as soon as the wind stops, the mild influence of the sea returns. The temperature dropped to -0.6 °C (30.9 °F) in February 1956, to -2 °C (28.5 °F) in January 1962, to -2.6 °C (27.3 °F) in March 1971 (record), to -0.5 °C (31 °F) in March 1987, and to -1 °C (30 °F) in February 2018.
Generally, the temperatures are not too high and the breeze blows, however, there can be hot and muggy periods. The torrid heat of African origin, on the other hand, rarely arrives, however, in the hottest periods, which are gradually becoming more frequent, the temperature generally reaches 34/35 °C (93/95 °F). The highest record is 37 °C (98.6 °F) and was set in July 1983.
temperature ranges between 14 °C (57 °F) and 26 °C (79 °F). The sea is warm enough for swimming from July to September.
to visit Ponza for a beach holiday is the summer, from June to August. The sea temperature is comfortable enough from July to September, although in September, which in any case is still a good month (especially in the first half), the first periods of bad weather can occur.
. Here are the average temperatures.
January is generally a mild month. The average temperature is of
10.9 °C, with a minimum of
9.4 °C and a maximum of
12.4 °C.
On the coldest nights of the month, the temperature usually drops to around
5 °C. However, it dropped to
0 °C in January 1993.
On the warmest days of the month, the temperature usually reaches around
15 °C. However, it reached
17.4 °C in January 2001.
Precipitation amounts to
80 mm, distributed over 8 days.
The day lasts on average 9 hours and 35 minutes.
There are on average 4 hours of sunshine per day. So, the sun shines 44% of the time.
The average humidity is 80%. Hence, the air is normally humid.
The average wind speed is of
19.9 kph.
The average sea temperature is of
15 °C. Therefore, the sea is cold for swimming.
February, the coldest month of the year, is generally a mild month. The average temperature is of
10.6 °C, with a minimum of
8.8 °C and a maximum of
12.3 °C.
On the coldest nights of the month, the temperature usually drops to around
4.5 °C. However, it dropped to
-1 °C in February 2018.
On the warmest days of the month, the temperature usually reaches around
16 °C. However, it reached
17.5 °C in February 2016.
Precipitation amounts to
70 mm, distributed over 7 days.
The day lasts on average 10 hours and 40 minutes.
There are on average 5 hours of sunshine per day. So, the sun shines 45% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is of
18.7 kph.
The average sea temperature is of
14.3 °C. Therefore, the sea is very cold for swimming.
March is generally a mild month. The average temperature is of
12.1 °C, with a minimum of
10.1 °C and a maximum of
14 °C.
On the coldest nights of the month, the temperature usually drops to around
5.5 °C. However, it dropped to
2 °C in March 1993.
On the warmest days of the month, the temperature usually reaches around
17 °C. However, it reached
21.4 °C in March 1994.
Precipitation amounts to
40 mm, distributed over 5 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 47% of the time.
The average humidity is 80%. Hence, the air is normally humid.
The average wind speed is of
18 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
14.3 °C, with a minimum of
12.1 °C and a maximum of
16.5 °C.
On the coldest nights of the month, the temperature usually drops to around
8 °C. However, it dropped to
4 °C in April 2003.
On the warmest days of the month, the temperature usually reaches around
21 °C. However, it reached
28 °C in April 2018.
Precipitation amounts to
40 mm, distributed over 5 days.
The day lasts on average 13 hours and 25 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 52% of the time.
The average humidity is 82%. Hence, the air is normally humid.
The average wind speed is of
16.4 kph.
The average sea temperature is of
15.6 °C. Therefore, the sea is cold for swimming.
May is generally a warm month. The average temperature is of
18.3 °C, with a minimum of
15.7 °C and a maximum of
20.8 °C.
On the coldest nights of the month, the temperature usually drops to around
12 °C. However, it dropped to
9 °C in May 1991.
On the warmest days of the month, the temperature usually reaches around
25 °C. However, it reached
29 °C in May 2020.
Precipitation amounts to
15 mm, distributed over 3 days.
The day lasts on average 14 hours and 30 minutes. So the days are long.
There are on average 9 hours of sunshine per day. So, the sun shines 61% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is of
15.1 kph.
The average sea temperature is of
18.6 °C. Therefore, the sea is very cool for swimming.
June is generally a warm month. The average temperature is of
22.4 °C, with a minimum of
19.6 °C and a maximum of
25.1 °C.
On the coldest nights of the month, the temperature usually drops to around
15.5 °C. However, it dropped to
11.8 °C in June 2006.
On the warmest days of the month, the temperature usually reaches around
29.5 °C. However, it reached
33.5 °C in June 2019.
Precipitation amounts to
15 mm, distributed over 2 days.
The day lasts on average 15 hours and 5 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 hours of sunshine per day. So, the sun shines 66% of the time.
The average humidity is 80%. Hence, the air is normally humid.
The average wind speed is of
13.9 kph.
The average sea temperature is of
22.3 °C. Therefore, the sea can be considered barely acceptable for swimming.
July is generally a warm to hot, muggy month. The average temperature is of
25 °C, with a minimum of
22.3 °C and a maximum of
27.7 °C.
On the coldest nights of the month, the temperature usually drops to around
18.5 °C. However, it dropped to
13.8 °C in July 2008.
On the warmest days of the month, the temperature usually reaches around
31 °C. However, it reached
34 °C in July 2019.
Precipitation amounts to only
5 mm, and all occurs in one day.
The day lasts on average 14 hours and 40 minutes. So the days are long.
There are on average 11 hours of sunshine per day. So, the sun shines 76% of the time.
The average humidity is 80%. Hence, the air is normally humid.
The average wind speed is of
13.3 kph.
The average sea temperature is of
25.3 °C. Therefore, the sea is warm enough for swimming.
August, the hottest month of the year, is generally a warm to hot, muggy month. The average temperature is of
25.8 °C, with a minimum of
23.1 °C and a maximum of
28.5 °C.
On the coldest nights of the month, the temperature usually drops to around
19.5 °C. However, it dropped to
17 °C in August 1995.
On the warmest days of the month, the temperature usually reaches around
32 °C. However, it reached
35.6 °C in August 2000.
Precipitation amounts to
10 mm, and all occurs in one day.
The day lasts on average 13 hours and 40 minutes.
There are on average 10 hours of sunshine per day. So, the sun shines 75% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is of
13.4 kph.
The average sea temperature is of
26.3 °C. Therefore, the sea is pleasantly warm and allows long swims.
September is generally a warm to hot, muggy month. The average temperature is of
22.7 °C, with a minimum of
20.4 °C and a maximum of
25 °C.
On the coldest nights of the month, the temperature usually drops to around
16.5 °C. However, it dropped to
13.6 °C in September 1994.
On the warmest days of the month, the temperature usually reaches around
29 °C. However, it reached
36.5 °C in September 2018.
Precipitation amounts to
65 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 68% of the time.
The average humidity is 80%. Hence, the air is normally humid.
The average wind speed is of
14.6 kph.
The average sea temperature is of
24.5 °C. Therefore, the sea is warm enough for swimming.
October is generally a warm month. The average temperature is of
19.1 °C, with a minimum of
17.1 °C and a maximum of
21.1 °C.
On the coldest nights of the month, the temperature usually drops to around
12.5 °C. However, it dropped to
7.8 °C in October 1997.
On the warmest days of the month, the temperature usually reaches around
25 °C. However, it reached
27.2 °C in October 1991.
Precipitation amounts to
100 mm, distributed over 6 days.
The day lasts on average 11 hours and 5 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 60% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is of
16.4 kph.
The average sea temperature is of
21.8 °C. Therefore, the sea is cool for swimming.
November is generally a very mild month. The average temperature is of
15.3 °C, with a minimum of
13.6 °C and a maximum of
17 °C.
On the coldest nights of the month, the temperature usually drops to around
9.5 °C. However, it dropped to
6.2 °C in November 2013.
On the warmest days of the month, the temperature usually reaches around
21.5 °C. However, it reached
25 °C in November 2017.
Precipitation amounts to
120 mm, distributed over 9 days.
The day lasts on average 9 hours and 55 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 47% of the time.
The average humidity is 80%. Hence, the air is normally humid.
The average wind speed is of
19.1 kph.
The average sea temperature is of
18.9 °C. Therefore, the sea is very cool for swimming.
December is generally a mild month. The average temperature is of
12 °C, with a minimum of
10.5 °C and a maximum of
13.6 °C.
On the coldest nights of the month, the temperature usually drops to around
5.5 °C. However, it dropped to
0 °C in December 1999.
On the warmest days of the month, the temperature usually reaches around
17 °C. However, it reached
19.6 °C in December 2000.
Precipitation amounts to
100 mm, distributed over 9 days.
The day lasts on average 9 hours and 20 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 42% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is of
20.5 kph.
The average sea temperature is of
16.5 °C. Therefore, the sea is cold for swimming.