Current sea water temperature:
+59.5°F
| Minimum sea water temperature in December: | 62.8°F |
| Maximum sea water temperature in December: | 56.8°F |
| Average sea water temperature in December: | 59.6°F |
| more information | |
14 days
forecast
forecast
| Lisbon |
monthly
weather
weather
| Lisbon |
Sea water temperature for the last 10 days:
| December 4 | 59.5°F | November 29 | 59.9°F |
| December 3 | 59.9°F | November 28 | 59.9°F |
| December 2 | 60.3°F | November 27 | 59.9°F |
| December 1 | 60.6°F | November 26 | 60.6°F |
| November 30 | 60.3°F | November 25 | 60.8°F |
Monthly sea water temperature, °F
When is the warmest sea in Lisbon?
Based on the data about daily sea water temperature for the last three years the warmest sea in Lisbon was noticed in August, July and September.
Monthly Sea Temperatures in Lisbon, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 70.2°F. The highest and lowest sea temperatures during the month were 72.5°F and 68.2°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 69.1°F. The highest and lowest sea temperatures during the month were 72.3°F and 65.5°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 65.9°F. The highest and lowest sea temperatures during the month were 69.3°F and 63.0°F.
current
weather
weather
| Lisbon |
weather in
December
December
| Lisbon |
Best time for vacation in Lisbon
Lisbon on a weather map
Places in Portugal:
Name
°F
24 Hours Forecast
Lisbon
Local time: 02:57
December 05, friday
0300
61°F
E
9 mph
9 mph
0600
61°F
E
13 mph
13 mph
0900
61°F
E
12 mph
12 mph
1200
63°F
E
13 mph
13 mph
1500
64°F
E
14 mph
14 mph
1800
61°F
E
9 mph
9 mph
2100
61°F
NE
7 mph
7 mph
December 06, saturday
0000
59°F
NE
6 mph
6 mph
