Measurements:
°C
°F
Nettuno
62°F
W 10 mph
Feels like: 62°F
Precip: 79%
World Resorts Italy Nettuno Weather

Nettuno Sea Water Temperature

Current Sea Water Temperature:
+66.2°F
Maximum Sea Water Temperature in May: 75.0°F
Minimum Sea Water Temperature in May: 61.6°F
Average water temperature in May: 67.0°F

Sea Water Temperature for the Last 10 Days:

May 09 66.2°F May 04 66.6°F
May 08 65.8°F May 03 66.2°F
May 07 65.2°F May 02 66.4°F
May 06 65.6°F May 01 66.2°F
May 05 66.2°F April 30 65.8°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 56.3 °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
January 8 mph

Nettuno on the Weather Map

Italy Resorts:
NAME
Amalfi +62
Bari +62
Bibione +56
Cagliari +62
Catania +62
Florence +58
Genoa +54
Lido di Jesolo +60
Naples +66
Palermo +60
Rimini +60
Rome +60
Sicily +56
Tropea +62
Venice +60
24 Hours Weather Forecast
Nettuno
Local time: 05:37
10 may, sunday
0600 62°F
W
10 mph
0900 68°F
NW
11 mph
1200 70°F
NW
16 mph
1500 72°F
NW
17 mph
1800 68°F
N
9 mph
2100 66°F
NE
3 mph
11 may, monday
0000 66°F
NE
2 mph
0300 64°F
NE
8 mph