Santo Stefano Island

Island Small Italian island formerly site of a prison

Off the Pontine archipelago near Ponza, Santo Stefano Island is a small islet with prison ruins and a lighthouse; visitors reach it by boat for snorkeling, coastal walks and short dives around the rocky shore.

Main image
Santo Stefano Island
Santo Stefano Island, Pontine Islands, Tyrrhenian Sea, Italy
40.7897, 13.4541

How to Get to Santo Stefano Island #

Santo Stefano is reached by boat from Ponza or Ventotene. Regular ferry services and day-trip operators run in summer; some parts of the island may be private or restricted.

Tips for Visiting Santo Stefano Island #

  • Boat tours from Ponza or Ventotene may include a circumnavigation of the island - check sardine season and local closures before booking.
  • The island has ruins of a 18th-19th-century prison; access may be limited and requires permission.

Best Time to Visit Santo Stefano Island #

Summer is the obvious time to approach the island by sea; some areas may have restricted access for conservation or private ownership.

Summer
June-September · 22-30°C
Boat access is easiest; expect tourist traffic but also swimming and clear water.

Weather & Climate near Santo Stefano Island #

Climate

Temperate climate with warm summers (peaking in August) and cool winters (coldest in February). Temperatures range from 7°C to 28°C. Moderate rainfall (777 mm/year) with a pronounced dry season.

Best Time to Visit
JulyJuneAugust
Temperature & Rainfall
Temperature Range
34°
Warmest Month
Coldest Month
Monthly Conditions

January

January is cool with highs of 13°C and lows of 8°C. Regular rainfall (86 mm) and partly cloudy skies.

57 Acceptable

Comfort

11°
Feels Like Cool
11°C
Temperature
13°
75%
Humidity
Very Humid

Weather

86 mm
Rainfall
2.8 m/s
Wind
Calm
0.2
UV Index
Low
9.5h daylight

February

February is the coolest month with highs of 13°C and lows of 7°C. Moderate rainfall (74 mm) and partly cloudy skies.

60 Good

Comfort

10°
Feels Like Cool
10°C
Temperature
13°
75%
Humidity
Very Humid

Weather

74 mm
Rainfall
3.0 m/s
Wind
Light Breeze
0.4
UV Index
Low
10.5h daylight

March

March is cool with highs of 14°C and lows of 8°C. Moderate rainfall (60 mm) and partly cloudy skies.

60 Good

Comfort

11°
Feels Like Cool
11°C
Temperature
14°
77%
Humidity
Very Humid

Weather

60 mm
Rainfall
3.1 m/s
Wind
Light Breeze
0.8
UV Index
Moderate
11.8h daylight

April

April is cool with highs of 17°C and lows of 10°C. Moderate rainfall (55 mm) and partly cloudy skies.

74 Very Good

Comfort

13°
Feels Like Cool
13°C
Temperature
10° 17°
77%
Humidity
Very Humid

Weather

55 mm
Rainfall
3.0 m/s
Wind
Light Breeze
1.2
UV Index
High
13.1h daylight

May

May is cool with highs of 21°C and lows of 14°C. Moderate rainfall (30 mm).

79 Very Good

Comfort

18°
Feels Like Cool
18°C
Temperature
14° 21°
74%
Humidity
Very Humid

Weather

30 mm
Rainfall
2.6 m/s
Wind
Calm
1.7
UV Index
Very High
14.3h daylight

June

June is mild with highs of 25°C and lows of 18°C. Light rainfall and mostly sunny skies.

93 Ideal

Comfort

21°
Feels Like Mild
21°C
Temperature
18° 25°
73%
Humidity
Very Humid

Weather

16 mm
Rainfall
2.6 m/s
Wind
Calm
2.1
UV Index
Extreme
14.8h daylight

July

July is warm with highs of 28°C and lows of 20°C. The driest month with just 13 mm and clear sunny skies.

97 Ideal

Comfort

24°
Feels Like Warm
24°C
Temperature
20° 28°
71%
Humidity
Very Humid

Weather

13 mm
Rainfall
2.5 m/s
Wind
Calm
2.2
UV Index
Extreme
14.6h daylight

August

August is the warmest month with highs of 28°C and lows of 21°C. Moderate rainfall (30 mm) and clear sunny skies.

93 Ideal

Comfort

25°
Feels Like Warm
25°C
Temperature
21° 28°
70%
Humidity
Very Humid

Weather

30 mm
Rainfall
2.4 m/s
Wind
Calm
1.9
UV Index
Very High
13.6h daylight

September

September is mild with highs of 25°C and lows of 18°C. Moderate rainfall (72 mm).

85 Excellent

Comfort

22°
Feels Like Mild
22°C
Temperature
19° 25°
69%
Humidity
Humid

Weather

72 mm
Rainfall
2.4 m/s
Wind
Calm
1.2
UV Index
High
12.3h daylight

October

October is mild with highs of 21°C and lows of 15°C. Significant rainfall (109 mm) and partly cloudy skies.

69 Good

Comfort

18°
Feels Like Mild
18°C
Temperature
15° 21°
73%
Humidity
Very Humid

Weather

109 mm
Rainfall
2.5 m/s
Wind
Calm
0.7
UV Index
Moderate
11.0h daylight

November

November is cool with highs of 17°C and lows of 11°C. The wettest month with heavy rain (131 mm) and partly cloudy skies.

61 Good

Comfort

14°
Feels Like Cool
14°C
Temperature
11° 17°
75%
Humidity
Very Humid

Weather

131 mm
Rainfall
2.8 m/s
Wind
Calm
0.3
UV Index
Low
9.8h daylight

December

December is cool with highs of 14°C and lows of 9°C. Significant rainfall (101 mm) and partly cloudy skies.

56 Acceptable

Comfort

12°
Feels Like Cool
12°C
Temperature
14°
74%
Humidity
Very Humid

Weather

101 mm
Rainfall
3.1 m/s
Wind
Light Breeze
0.2
UV Index
Low
9.2h daylight

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