Measurements:
°C
°F
Posillipo
80°F
SE 11 mph
Feels like: 84°F
Precip: 4%
World Resorts Italy Posillipo Weather

Posillipo Sea Water Temperature

Current Sea Water Temperature:
+87.4°F
Maximum Sea Water Temperature in September: 89.0°F
Minimum Sea Water Temperature in September: 75.6°F
Average water temperature in September: 81.4°F

Sea Water Temperature for the Last 10 Days:

September 11 87.4°F September 06 88.2°F
September 10 87.8°F September 05 88.2°F
September 09 87.8°F September 04 88.8°F
September 08 87.6°F September 03 89.0°F
September 07 87.6°F September 02 88.8°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: 2026 2025 2024

The average sea surface temperature in August 2026 for Posillipo was 89.1°F. The maximum and minimum values were 88.2°F and 89.8°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Posillipo was 86.1°F. The maximum and minimum values were 84.0°F and 88.6°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 23 days
The most warm months:
July 92.2 °F
August 91.5 °F
June 85.7 °F
Warmest sea temperature:
August 85.4 °F
July 84.3 °F
September 81.0 °F
The most cold months:
January 54.5 °F
December 57.4 °F
February 57.5 °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
Baia Domizia +78
Bari +82
Bibione +58
Florence +68
Genoa +62
Lido di Jesolo +64
Naples +80
Ostia +78
Palermo +74
Rimini +68
Rome +72
Scalea +70
Sicily +78
Tropea +78
Venice +64
24 Hours Weather Forecast
Posillipo
Local time: 04:11
12 sep, saturday
0600 80°F
SE
9 mph
0900 80°F
SE
4 mph
1200 82°F
NE
9 mph
1500 82°F
E
11 mph
1800 82°F
SE
11 mph
2100 82°F
SE
10 mph
13 sep, sunday
0000 82°F
SE
8 mph
0300 80°F
S
7 mph