World Resorts Portugal Porto Weather

Porto Sea Temperature in May

Average sea water temperature in May:
+59.7°F
Minimum sea water temperature in May: 65.3°F
Maximum sea water temperature in May: 55.4°F

Daily sea water temperature in May, °F

Show year:
2025
2024
2023

The average sea water temperature in May of 2025 was 60.7°F. The highest and lowest sea temperatures during the month were 62.8°F and 58.5°F.

Monthly sea water temperature in Porto, °F

Which Portugal resorts have warmest sea in May?

Place name May 2025 May 2024
Madeira 68.3°F 68.8°F
Funchal 68.3°F 68.8°F
Canico 68.0°F 68.6°F
Porto Santo Island 66.9°F 68.2°F
Santa Maria Island 65.1°F 66.9°F
Algarve 64.5°F 61.9°F
Faro 64.5°F 61.9°F
Lisbon 63.9°F 62.8°F
Tavira 63.7°F 60.7°F
Quarteira 63.7°F 61.0°F
Ponta Delgada 63.5°F 65.3°F
Sao Miguel 63.5°F 65.1°F
Setubal 63.4°F 62.0°F
Flores Island 63.4°F 64.9°F
Corvo Island 63.3°F 65.1°F
Sao Jorge 63.2°F 65.4°F
Albufeira 63.2°F 60.3°F
Faial Island 63.1°F 64.9°F
Graciosa 63.1°F 65.1°F
Pico Island 63.1°F 64.9°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 56.5 °F
February 57.6 °F
December 58.6 °F
Rainiest months:
November 9 days
December 8 days
October 8 days
Windiest months:
March 8.4 mph
February 8.3 mph
November 8.1 mph

Porto on a weather map

Porto
+54°F
N 6 mph
Feels like: +54°F
Precip.: 77%
Places in Portugal:
Name
°F
+57°F
+57°F
+63°F
+57°F
+61°F
+61°F
+54°F
+64°F
+59°F
+54°F
+64°F
+57°F
+54°F
24 Hours Forecast
Porto
Local time: 04:01
December 05, friday
0600
54°F
N
9 mph
0900
55°F
N
12 mph
1200
57°F
NE
9 mph
1500
61°F
NE
12 mph
1800
61°F
NE
14 mph
2100
59°F
NE
13 mph
December 06, saturday
0000
59°F
NE
15 mph
0300
59°F
NE
16 mph

Best place for vacation:

Units of measurement: °C / °F