Measurements:
°C
°F
Portonovo
54°F
W 2 mph
Feels like: 54°F
Precip: 20%
World Resorts Spain Portonovo Weather

Portonovo Sea Water Temperature

Current Sea Water Temperature:
+67.0°F
Maximum Sea Water Temperature in July: 73.2°F
Minimum Sea Water Temperature in July: 60.8°F
Average water temperature in July: 65.9°F

Sea Water Temperature for the Last 10 Days:

July 09 67.0°F July 04 65.8°F
July 08 64.4°F July 03 65.6°F
July 07 67.4°F July 02 66.2°F
July 06 68.2°F July 01 68.0°F
July 05 67.8°F June 30 69.4°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:
August 23 days
July 23 days
May 15 days
The most warm months:
July 78.8 °F
August 78.6 °F
June 73.4 °F
Warmest sea temperature:
August 66.6 °F
July 65.9 °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: 05:43
10 jul, friday
0600 54°F
W
2 mph
0900 64°F
NE
1 mph
1200 76°F
E
5 mph
1500 80°F
E
6 mph
1800 78°F
E
7 mph
2100 72°F
E
4 mph
11 jul, saturday
0000 60°F
SW
3 mph
0300 58°F
W
2 mph