World Resorts Portugal Lisbon Weather

Lisbon Sea Temperature in December

Average sea water temperature in December:
+59.5°F
Minimum sea water temperature in December: 62.8°F
Maximum sea water temperature in December: 55.6°F

Daily sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 58.8°F. The highest and lowest sea temperatures during the month were 60.6°F and 55.6°F.

Monthly sea water temperature in Lisbon, °F

Which Portugal resorts have warmest sea in December?

Place name December 2025 December 2024
Madeira 68.6°F 69.9°F
Funchal 68.6°F 69.9°F
Canico 68.5°F 69.7°F
Porto Santo Island 67.8°F 69.3°F
Santa Maria Island 66.2°F 66.9°F
Faial Island 64.0°F 65.6°F
Pico Island 63.8°F 65.5°F
Flores Island 63.7°F 65.6°F
Sao Miguel 63.7°F 65.5°F
Ponta Delgada 63.7°F 65.7°F
Sao Jorge 63.6°F 65.6°F
Corvo Island 63.3°F 65.0°F
Graciosa 63.2°F 65.6°F
Terceira Island 63.0°F 65.1°F
Algarve 61.3°F 64.2°F
Faro 61.3°F 64.2°F
Sagres 61.1°F 64.3°F
Lagos 61.0°F 64.0°F
Alvor 61.0°F 63.8°F
Portimao 61.0°F 63.5°F

Best time for vacation in Lisbon

Sunniest months:
August 28 days
July 26 days
September 23 days
Warmest months:
August 81.8 °F
July 80.8 °F
September 78.6 °F
Warmest sea temp:
August 67.1 °F
July 66.8 °F
September 66.6 °F
Coldest months:
January 58.6 °F
February 59.8 °F
December 60.4 °F
Rainiest months:
March 4 days
November 4 days
April 4 days
Windiest months:
July 10.7 mph
August 10.2 mph
June 10.2 mph

Lisbon on a weather map

Lisbon
+57°F
NW 13 mph
Feels like: +54°F
Precip.: 100%
Places in Portugal:
Name
°F
+59°F
+59°F
+59°F
+59°F
+61°F
+57°F
+61°F
+57°F
+61°F
+50°F
+57°F
+59°F
+61°F
24 Hours Forecast
Lisbon
Local time: 15:47
January 01, thursday
1800
57°F
NW
17 mph
2100
59°F
NW
20 mph
January 02, friday
0000
59°F
NW
23 mph
0300
59°F
NW
23 mph
0600
59°F
N
22 mph
0900
59°F
N
22 mph
1200
57°F
N
22 mph
1500
59°F
N
24 mph

Best place for vacation:

Units of measurement: °C / °F