Measurements:
°C
°F
Portonovo
48°F
N 6 mph
Feels like: 46°F
Precip: 100%
World Resorts Spain Portonovo Weather

Portonovo Sea Water Temperature

Current Sea Water Temperature:
+59.2°F
Maximum Sea Water Temperature in December: 61.6°F
Minimum Sea Water Temperature in December: 54.4°F
Average water temperature in December: 58.3°F

Sea Water Temperature for the Last 10 Days:

December 05 59.2°F November 30 59.0°F
December 04 59.2°F November 29 59.0°F
December 03 59.0°F November 28 59.0°F
December 02 59.4°F November 27 59.4°F
December 01 59.2°F November 26 59.4°F

When is the Warmest Sea for Portonovo?

According to our data for the last three years for Portonovo 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 Portonovo was 66.2°F. The maximum and minimum values were 59.8°F and 70.8°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Portonovo was 65.8°F. The maximum and minimum values were 60.8°F and 73.2°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Portonovo was 65.6°F. The maximum and minimum values were 61.2°F and 67.8°F respectively.

Best Time to Visit Portonovo
The most sunny months:
July 23 days
August 23 days
May 16 days
The most warm months:
July 78.8 °F
August 78.6 °F
September 73.1 °F
Warmest sea temperature:
August 66.6 °F
July 65.9 °F
September 65.5 °F
The most cold months:
January 53.8 °F
December 55.6 °F
February 56.9 °F
The most rainy months:
October 9 days
December 8 days
November 6 days
The most windy months:
December 8 mph
January 8 mph
March 7 mph

Portonovo on the Weather Map

24 Hours Weather Forecast
Portonovo
Local time: 08:58
05 dec, friday
0900 48°F
N
6 mph
1200 52°F
N
8 mph
1500 58°F
NE
13 mph
1800 56°F
NE
14 mph
2100 56°F
NE
11 mph
06 dec, saturday
0000 56°F
NE
11 mph
0300 56°F
NE
11 mph
0600 56°F
NE
9 mph