Measurements:
°C
°F
Portonovo
76°F
NE 6 mph
Feels like: 80°F
Precip: 5%
World Resorts Spain Portonovo Weather

Portonovo Sea Water Temperature

Current Sea Water Temperature:
+67.8°F
Maximum Sea Water Temperature in August: 75.6°F
Minimum Sea Water Temperature in August: 59.8°F
Average water temperature in August: 67.1°F

Sea Water Temperature for the Last 10 Days:

August 19 67.8°F August 14 75.6°F
August 18 69.4°F August 13 75.2°F
August 17 71.0°F August 12 74.6°F
August 16 73.2°F August 11 74.2°F
August 15 75.0°F August 10 73.2°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: 2026 2025 2024

The average sea surface temperature in August 2026 for Portonovo was 72.4°F. The maximum and minimum values were 67.8°F and 75.6°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Portonovo was 69.3°F. The maximum and minimum values were 64.4°F and 74.0°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:
August 23 days
July 23 days
May 15 days
The most warm months:
July 79.4 °F
August 78.6 °F
June 73.4 °F
Warmest sea temperature:
August 66.6 °F
July 66.3 °F
September 65.5 °F
The most cold months:
January 53.3 °F
December 55.2 °F
February 56.6 °F
The most rainy months:
October 9 days
December 8 days
January 6 days
The most windy months:
January 8 mph
December 7 mph
March 7 mph

Portonovo on the Weather Map

24 Hours Weather Forecast
Portonovo
Local time: 16:49
19 aug, wednesday
1800 76°F
NE
6 mph
2100 70°F
N
4 mph
20 aug, thursday
0000 66°F
SW
4 mph
0300 64°F
SW
4 mph
0600 64°F
SW
5 mph
0900 66°F
S
6 mph
1200 70°F
SW
8 mph
1500 78°F
S
9 mph