Measurements:
°C
°F
Nettuno
54°F
W 6 mph
Feels like: 54°F
Precip: 100%
World Resorts Italy Nettuno Weather

Nettuno Sea Water Temperature

Current Sea Water Temperature:
+64.8°F
Maximum Sea Water Temperature in December: 67.2°F
Minimum Sea Water Temperature in December: 60.6°F
Average water temperature in December: 63.9°F

Sea Water Temperature for the Last 10 Days:

December 04 64.8°F November 29 65.8°F
December 03 64.8°F November 28 66.6°F
December 02 65.2°F November 27 66.4°F
December 01 65.4°F November 26 66.4°F
November 30 65.6°F November 25 66.8°F

When is the Warmest Sea for Nettuno?

According to our data for the last three years for Nettuno 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 Nettuno was 80.8°F. The maximum and minimum values were 75.4°F and 83.4°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Nettuno was 81.5°F. The maximum and minimum values were 76.4°F and 85.4°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Nettuno was 80.2°F. The maximum and minimum values were 78.0°F and 81.4°F respectively.

Best Time to Visit Nettuno
The most sunny months:
July 28 days
August 27 days
June 25 days
The most warm months:
August 89.8 °F
July 88.9 °F
June 82.5 °F
Warmest sea temperature:
August 82.4 °F
July 81.0 °F
September 79.4 °F
The most cold months:
January 55.1 °F
February 56.2 °F
December 58.0 °F
The most rainy months:
November 7 days
December 5 days
March 5 days
The most windy months:
February 9 mph
November 9 mph
March 8 mph

Nettuno 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
Nettuno
Local time: 08:17
05 dec, friday
0900 54°F
W
6 mph
1200 58°F
W
6 mph
1500 60°F
SE
3 mph
1800 54°F
S
7 mph
2100 54°F
S
7 mph
06 dec, saturday
0000 52°F
S
6 mph
0300 50°F
S
9 mph
0600 50°F
S
11 mph