World Resorts Portugal Porto Weather

Porto sea water temperature

Current sea water temperature:
+56.5°F
Minimum sea water temperature in April: 63.0°F
Maximum sea water temperature in April: 54.0°F
Average sea water temperature in April: 57.9°F

Sea water temperature for the last 10 days:

April 6 56.5°F April 1 55.6°F
April 5 56.5°F March 31 55.2°F
April 4 55.4°F March 30 56.3°F
April 3 55.8°F March 29 55.8°F
April 2 55.2°F March 28 55.8°F

When is the warmest sea in Porto?

Based on the data about daily sea water temperature for the last three years the warmest sea in Porto was noticed in September, August and July.

Monthly Sea Temperatures in Porto, °F

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 61.6°F. The highest and lowest sea temperatures during the month were 65.7°F and 56.3°F.

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 63.3°F. The highest and lowest sea temperatures during the month were 67.5°F and 59.0°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 62.2°F. The highest and lowest sea temperatures during the month were 66.2°F and 57.7°F.

Best time for vacation in Porto

Sunniest months:
August 25 days
July 24 days
September 21 days
Warmest months:
August 77.9 °F
July 77.5 °F
September 75.5 °F
Warmest sea temp:
September 63.4 °F
August 62.9 °F
July 62.5 °F
Coldest months:
January 56.2 °F
February 57.5 °F
December 58.3 °F
Rainiest months:
November 9 days
December 8 days
October 8 days
Windiest months:
February 8.5 mph
March 8.4 mph
January 8.3 mph

Porto on a weather map

Porto
+72°F
NE 20 mph
Feels like: +72°F
Precip.: 76%
Places in Portugal:
Name
°F
+66°F
+64°F
+63°F
+64°F
+64°F
+63°F
+54°F
+64°F
+72°F
+54°F
+64°F
+64°F
+63°F
+63°F
24 Hours Forecast
Porto
Local time: 14:49
April 06, monday
1500
72°F
NE
20 mph
1800
64°F
N
9 mph
2100
61°F
NW
9 mph
April 07, tuesday
0000
61°F
NW
11 mph
0300
61°F
NW
14 mph
0600
59°F
N
14 mph
0900
55°F
NE
12 mph
1200
54°F
NE
14 mph

Best place for vacation:

Units of measurement: °C / °F