Measurements:
°C
°F
Posillipo
52°F
NW 12 mph
Feels like: 48°F
Precip: 100%
World Resorts Italy Posillipo Weather

Posillipo Sea Water Temperature

Current Sea Water Temperature:
+61.0°F
Maximum Sea Water Temperature in January: 64.6°F
Minimum Sea Water Temperature in January: 59.0°F
Average water temperature in January: 61.8°F

Sea Water Temperature for the Last 10 Days:

January 28 61.0°F January 23 61.6°F
January 27 60.6°F January 22 62.4°F
January 26 61.2°F January 21 61.6°F
January 25 60.6°F January 20 61.8°F
January 24 60.4°F January 19 62.2°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 54.5 °F
February 57.3 °F
December 57.4 °F
The most rainy months:
December 5 days
November 5 days
January 4 days
The most windy months:
March 6 mph
January 6 mph
April 6 mph

Posillipo on the Weather Map

Italy Resorts:
NAME
Amalfi +50
Bari +52
Cagliari +50
Catania +54
Florence +44
Genoa +42
Naples +52
Palermo +54
Pisa +48
Reggio di Calabria +52
Rimini +46
Rome +48
Sicily +50
Tropea +50
Venice +42
24 Hours Weather Forecast
Posillipo
Local time: 02:05
29 jan, thursday
0300 52°F
NW
12 mph
0600 52°F
NW
11 mph
0900 52°F
SW
6 mph
1200 50°F
SE
10 mph
1500 56°F
E
16 mph
1800 54°F
SE
11 mph
2100 54°F
SE
11 mph
30 jan, friday
0000 52°F
SE
9 mph