World Resorts Italy Nettuno Weather

Nettuno sea water temperature

Current sea water temperature:
+64.6°F
Minimum sea water temperature in May: 72.5°F
Maximum sea water temperature in May: 60.4°F
Average sea water temperature in May: 65.3°F

Sea water temperature for the last 10 days:

May 17 64.6°F May 12 65.5°F
May 16 65.3°F May 11 64.8°F
May 15 65.5°F May 10 64.9°F
May 14 65.8°F May 9 64.6°F
May 13 66.4°F May 8 64.2°F

When is the warmest sea in Nettuno?

Based on the data about daily sea water temperature for the last three years the warmest sea in Nettuno was noticed in August, July and September.

Monthly Sea Temperatures in Nettuno, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 77.7°F. The highest and lowest sea temperatures during the month were 80.1°F and 72.9°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 78.3°F. The highest and lowest sea temperatures during the month were 81.9°F and 73.8°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 77.2°F. The highest and lowest sea temperatures during the month were 78.3°F and 75.2°F.

Best time for vacation in Nettuno

Sunniest months:
July 28 days
August 27 days
June 25 days
Warmest months:
August 85.8 °F
July 85.0 °F
June 79.2 °F
Warmest sea temp:
August 79.2 °F
July 77.9 °F
September 76.4 °F
Coldest months:
January 54.6 °F
February 55.7 °F
December 57.2 °F
Rainiest months:
November 7 days
December 5 days
March 5 days
Windiest months:
February 9.0 mph
November 8.8 mph
January 8.7 mph

Nettuno on a weather map

Nettuno
+64°F
E 7 mph
Feels like: +64°F
Precip.: 0%
Places in Italy:
Name
°F
+64°F
+63°F
+66°F
+64°F
+63°F
+66°F
+66°F
+64°F
+63°F
+66°F
+64°F
+68°F
+61°F
+68°F
24 Hours Forecast
Nettuno
Local time: 19:19
May 17, sunday
2100
59°F
SE
7 mph
May 18, monday
0000
57°F
SE
7 mph
0300
57°F
SE
9 mph
0600
57°F
SE
7 mph
0900
63°F
SE
6 mph
1200
66°F
E
9 mph
1500
64°F
NE
11 mph
1800
64°F
NE
7 mph
Units of measurement: °C / °F