25.08
tue
tue
Day
66°F
S 14 mph
Precip.
17%
17%
Night
63°F
SE 9 mph
Precip.
22%
22%
26.08
wed
wed
Day
68°F
SE 13 mph
Precip.
11%
11%
Night
64°F
S 11 mph
Precip.
18%
18%
27.08
thu
thu
Day
70°F
S 9 mph
Precip.
4%
4%
Night
64°F
SE 4 mph
Precip.
13%
13%
28.08
fri
fri
Day
72°F
E 9 mph
Precip.
13%
13%
Night
66°F
E 6 mph
Precip.
12%
12%
29.08
sat
sat
Day
75°F
E 8 mph
Precip.
7%
7%
Night
68°F
E 8 mph
Precip.
44%
44%
30.08
sun
sun
Day
70°F
SW 5 mph
Precip.
12%
12%
Night
68°F
NW 2 mph
Precip.
19%
19%
31.08
mon
mon
Day
70°F
NW 2 mph
Precip.
14%
14%
Night
66°F
NE 6 mph
Precip.
13%
13%
sea water
temperature
temperature
| Terceira Island |
monthly
weather
weather
| Terceira Island |
current
weather
weather
| Terceira Island |
14 days
forecast
forecast
| Terceira Island |
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 73.5°F. The highest and lowest sea temperatures during the month were 75.0°F and 71.6°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.
Air temperature in Terceira Island, °F
Precipitation total in Terceira Island, in.
* Charts above show average data for the last 3 years.
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: 22:09
August 26, wednesday
0000
63°F
SE
9 mph
9 mph
0300
63°F
SE
10 mph
10 mph
0600
63°F
SE
9 mph
9 mph
0900
64°F
S
9 mph
9 mph
1200
68°F
SE
13 mph
13 mph
1500
70°F
SE
14 mph
14 mph
1800
68°F
SE
15 mph
15 mph
2100
64°F
S
11 mph
11 mph
