Measurements:
°C
°F
Portonovo
50°F
SE 12 mph
Feels like: 46°F
Precip: 100%
World Resorts Spain Portonovo Weather

Portonovo Sea Water Temperature

Current Sea Water Temperature:
+56.0°F
Maximum Sea Water Temperature in January: 59.0°F
Minimum Sea Water Temperature in January: 53.4°F
Average water temperature in January: 56.2°F

Sea Water Temperature for the Last 10 Days:

January 09 56.0°F January 04 56.6°F
January 08 55.6°F January 03 56.2°F
January 07 56.0°F January 02 56.0°F
January 06 55.8°F January 01 55.6°F
January 05 56.4°F December 31 55.6°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 55.2 °F
February 56.9 °F
The most rainy months:
October 9 days
December 8 days
November 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: 14:07
09 jan, friday
1500 50°F
SE
12 mph
1800 48°F
SE
7 mph
2100 48°F
SE
6 mph
10 jan, saturday
0000 44°F
S
2 mph
0300 42°F
W
1 mph
0600 38°F
W
2 mph
0900 40°F
NW
2 mph
1200 48°F
N
3 mph