Measurements:
°C
°F
Portonovo
50°F
SW 9 mph
Feels like: 46°F
Precip: 5%
World Resorts Spain Portonovo Weather

Portonovo Sea Water Temperature

Current Sea Water Temperature:
+61.6°F
Maximum Sea Water Temperature in October: 70.8°F
Minimum Sea Water Temperature in October: 58.6°F
Average water temperature in October: 63.2°F

Sea Water Temperature for the Last 10 Days:

October 18 61.6°F October 13 61.2°F
October 17 63.4°F October 12 61.6°F
October 16 62.0°F October 11 62.6°F
October 15 63.2°F October 10 62.0°F
October 14 62.8°F October 09 62.4°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: 2026 2025 2024

The average sea surface temperature in August 2026 for Portonovo was 69.9°F. The maximum and minimum values were 63.8°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: 2026 2025 2024

The average sea surface temperature in September 2026 for Portonovo was 66.4°F. The maximum and minimum values were 62.0°F and 70.6°F respectively.

Best Time to Visit Portonovo
The most sunny months:
July 23 days
August 22 days
May 15 days
The most warm months:
July 79.4 °F
August 78.5 °F
September 74.2 °F
Warmest sea temperature:
August 67.0 °F
July 66.3 °F
September 65.6 °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: 07:01
19 oct, monday
0900 48°F
SW
9 mph
1200 62°F
SW
10 mph
1500 70°F
SW
8 mph
1800 70°F
S
7 mph
2100 54°F
S
8 mph
20 oct, tuesday
0000 48°F
SW
7 mph
0300 44°F
SW
6 mph
0600 46°F
SW
5 mph