Measurements:
°C
°F
Alghero
54°F
W 3 mph
Feels like: 52°F
Precip: 0%
World Resorts Italy Alghero Weather

Alghero Sea Water Temperature

Current Sea Water Temperature:
+63.4°F
Maximum Sea Water Temperature in December: 67.4°F
Minimum Sea Water Temperature in December: 58.2°F
Average water temperature in December: 62.2°F

Sea Water Temperature for the Last 10 Days:

December 13 63.4°F December 08 63.4°F
December 12 63.2°F December 07 63.8°F
December 11 63.2°F December 06 63.6°F
December 10 62.8°F December 05 63.8°F
December 09 62.8°F December 04 64.2°F

When is the Warmest Sea for Alghero?

According to our data for the last three years for Alghero 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 Alghero was 79.3°F. The maximum and minimum values were 74.0°F and 82.6°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Alghero was 79.6°F. The maximum and minimum values were 72.6°F and 83.2°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Alghero was 79.2°F. The maximum and minimum values were 77.0°F and 80.8°F respectively.

Best Time to Visit Alghero
The most sunny months:
July 29 days
August 28 days
June 25 days
The most warm months:
August 88.4 °F
July 87.6 °F
September 81.8 °F
Warmest sea temperature:
August 79.7 °F
July 78.1 °F
September 77.6 °F
The most cold months:
January 56.3 °F
February 56.5 °F
December 59.6 °F
The most rainy months:
November 5 days
December 3 days
March 3 days
The most windy months:
January 12 mph
December 11 mph
November 11 mph

Alghero on the Weather Map

Italy Resorts:
NAME
Amalfi +48
Bari +54
Cagliari +54
Catania +56
Florence +46
Genoa +46
Naples +54
Palermo +52
Reggio di Calabria +54
Rimini +48
Rome +50
Scalea +46
Sicily +52
Tropea +54
Venice +46
24 Hours Weather Forecast
Alghero
Local time: 10:25
13 dec, saturday
1200 60°F
NE
2 mph
1500 60°F
SE
3 mph
1800 54°F
S
3 mph
2100 54°F
W
4 mph
14 dec, sunday
0000 52°F
W
3 mph
0300 52°F
NW
4 mph
0600 52°F
NW
2 mph
0900 54°F
W
4 mph