World Resorts Italy Nettuno Weather

Nettuno sea water temperature

Current sea water temperature:
+63.3°F
Minimum sea water temperature in December: 65.5°F
Maximum sea water temperature in December: 59.5°F
Average sea water temperature in December: 62.5°F

Sea water temperature for the last 10 days:

December 4 63.3°F November 29 64.2°F
December 3 63.3°F November 28 64.9°F
December 2 63.7°F November 27 64.8°F
December 1 63.9°F November 26 64.8°F
November 30 64.0°F November 25 65.1°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 55.5 °F
December 57.2 °F
Rainiest months:
November 7 days
December 5 days
March 5 days
Windiest months:
February 8.9 mph
November 8.8 mph
March 8.7 mph

Nettuno on a weather map

Nettuno
+52°F
W 6 mph
Feels like: +50°F
Precip.: 100%
Places in Italy:
Name
°F
+48°F
+54°F
+48°F
+48°F
+48°F
+52°F
+55°F
+52°F
+50°F
+50°F
+50°F
+45°F
+41°F
+54°F
+48°F
24 Hours Forecast
Nettuno
Local time: 05:32
December 05, friday
0600
52°F
W
6 mph
0900
54°F
W
6 mph
1200
57°F
W
6 mph
1500
59°F
SE
3 mph
1800
54°F
S
7 mph
2100
54°F
S
7 mph
December 06, saturday
0000
52°F
S
6 mph
0300
50°F
S
9 mph
Units of measurement: °C / °F