Current sea water temperature:
+62.2°F
| Minimum sea water temperature in December: | 66.6°F |
| Maximum sea water temperature in December: | 59.9°F |
| Average sea water temperature in December: | 63.1°F |
| more information | |
14 days
forecast
forecast
| Terceira Island |
monthly
weather
weather
| Terceira Island |
Sea water temperature for the last 10 days:
| December 21 | 62.2°F | December 16 | 62.6°F |
| December 20 | 62.4°F | December 15 | 62.8°F |
| December 19 | 62.6°F | December 14 | 63.0°F |
| December 18 | 62.6°F | December 13 | 63.0°F |
| December 17 | 62.8°F | December 12 | 63.1°F |
Monthly sea water temperature, °F
When is the warmest sea in Terceira Island?
Based on the data about daily sea water temperature for the last three years the warmest sea in Terceira Island was noticed in August, September and July.
Monthly Sea Temperatures in Terceira Island, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 74.3°F. The highest and lowest sea temperatures during the month were 75.9°F and 72.5°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 72.6°F. The highest and lowest sea temperatures during the month were 74.1°F and 70.7°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 70.8°F. The highest and lowest sea temperatures during the month were 72.7°F and 68.4°F.
current
weather
weather
| Terceira Island |
weather in
December
December
| Terceira Island |
Best time for vacation in Terceira Island
Terceira Island on a weather map
Places in Portugal:
Name
°F
24 Hours Forecast
Terceira Island
Local time: 10:18
December 21, sunday
1200
57°F
SE
8 mph
8 mph
1500
59°F
SE
7 mph
7 mph
1800
57°F
SE
9 mph
9 mph
2100
55°F
E
6 mph
6 mph
December 22, monday
0000
54°F
NE
8 mph
8 mph
0300
55°F
NE
11 mph
11 mph
0600
55°F
NE
12 mph
12 mph
0900
55°F
E
13 mph
13 mph
