Measurements:
°C
°F
Nettuno
72°F
SE 6 mph
Feels like: 72°F
Precip: 19%
World Resorts Italy Nettuno Weather

Nettuno Sea Water Temperature

Current Sea Water Temperature:
+85.6°F
Maximum Sea Water Temperature in September: 87.0°F
Minimum Sea Water Temperature in September: 74.0°F
Average water temperature in September: 79.5°F

Sea Water Temperature for the Last 10 Days:

September 11 85.6°F September 06 85.2°F
September 10 85.4°F September 05 84.2°F
September 09 85.0°F September 04 84.4°F
September 08 85.0°F September 03 85.0°F
September 07 85.2°F September 02 86.0°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: 2026 2025 2024

The average sea surface temperature in August 2026 for Nettuno was 88.2°F. The maximum and minimum values were 87.4°F and 89.2°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Nettuno was 85.0°F. The maximum and minimum values were 80.0°F and 88.8°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 29 days
August 27 days
June 26 days
The most warm months:
August 90.0 °F
July 89.0 °F
June 82.6 °F
Warmest sea temperature:
August 82.8 °F
July 81.2 °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
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
Nettuno
Local time: 04:11
12 sep, saturday
0600 72°F
S
6 mph
0900 78°F
SE
5 mph
1200 84°F
E
9 mph
1500 86°F
NE
11 mph
1800 82°F
NE
7 mph
2100 76°F
SE
2 mph
13 sep, sunday
0000 74°F
W
2 mph
0300 72°F
W
2 mph