Measurements:
°C
°F
Posillipo
56°F
NW 8 mph
Feels like: 54°F
Precip: 100%
World Resorts Italy Posillipo Weather

Posillipo Sea Water Temperature

Current Sea Water Temperature:
+65.0°F
Maximum Sea Water Temperature in December: 68.6°F
Minimum Sea Water Temperature in December: 62.2°F
Average water temperature in December: 65.1°F

Sea Water Temperature for the Last 10 Days:

December 05 65.0°F November 30 66.2°F
December 04 65.2°F November 29 66.2°F
December 03 65.4°F November 28 66.8°F
December 02 66.2°F November 27 66.6°F
December 01 66.0°F November 26 67.0°F

When is the Warmest Sea for Posillipo?

According to our data for the last three years for Posillipo the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Posillipo was 83.4°F. The maximum and minimum values were 80.6°F and 85.0°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Posillipo was 84.0°F. The maximum and minimum values were 81.4°F and 86.2°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Posillipo was 81.8°F. The maximum and minimum values were 78.8°F and 83.6°F respectively.

Best Time to Visit Posillipo
The most sunny months:
July 27 days
June 23 days
August 22 days
The most warm months:
July 92.4 °F
August 91.7 °F
June 85.8 °F
Warmest sea temperature:
August 84.8 °F
July 84.0 °F
September 81.0 °F
The most cold months:
January 54.4 °F
December 57.0 °F
February 57.3 °F
The most rainy months:
December 5 days
November 5 days
January 4 days
The most windy months:
March 6 mph
April 6 mph
January 6 mph

Posillipo on the Weather Map

Italy Resorts:
NAME
Amalfi +50
Bari +56
Cagliari +52
Catania +56
Florence +50
Genoa +48
Naples +56
Palermo +54
Pisa +50
Rimini +50
Rome +52
Scalea +44
Sicily +50
Tropea +56
Venice +48
24 Hours Weather Forecast
Posillipo
Local time: 09:28
05 dec, friday
1200 60°F
W
6 mph
1500 60°F
NW
5 mph
1800 58°F
W
2 mph
2100 56°F
S
4 mph
06 dec, saturday
0000 54°F
S
7 mph
0300 54°F
SW
7 mph
0600 52°F
S
6 mph
0900 54°F
S
4 mph