Measurements:
°C
°F
Terceira Island
72°F
SE 4 mph
Feels like: 72°F
Precip: 30%
World Resorts Portugal Terceira Island Weather

14 Day Weather Forecast

09.09
wed
DAY
80°F
SE 5 mph
precip
6%
NIGHT
72°F
E 2 mph
precip
15%
09.10
thu
DAY
80°F
NW 1 mph
precip
5%
NIGHT
72°F
N 3 mph
precip
14%
09.11
fri
DAY
80°F
N 11 mph
precip
15%
NIGHT
72°F
N 6 mph
precip
18%
09.12
sat
DAY
80°F
NE 2 mph
precip
6%
NIGHT
72°F
NW 2 mph
precip
15%
09.13
sun
DAY
78°F
W 2 mph
precip
18%
NIGHT
70°F
NW 4 mph
precip
16%
09.14
mon
DAY
76°F
SE 7 mph
precip
25%
NIGHT
70°F
SW 10 mph
precip
47%
09.15
tue
DAY
68°F
SW 10 mph
precip
18%
NIGHT
66°F
W 6 mph
precip
22%
09.16
wed
DAY
72°F
W 7 mph
precip
18%
NIGHT
68°F
NW 4 mph
precip
22%
09.17
thu
DAY
72°F
N 4 mph
precip
19%
NIGHT
68°F
N 6 mph
precip
40%
09.18
fri
DAY
72°F
NE 11 mph
precip
38%
NIGHT
64°F
S 4 mph
precip
11%
09.19
sat
DAY
72°F
SE 9 mph
precip
21%
NIGHT
68°F
SE 6 mph
precip
30%
09.20
sun
DAY
68°F
SW 16 mph
precip
9%
NIGHT
64°F
SW 14 mph
precip
15%
09.21
mon
DAY
66°F
SW 13 mph
precip
19%
NIGHT
62°F
SW 14 mph
precip
17%

Terceira Island Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Terceira Island was 75.2°F. The maximum and minimum values were 73.0°F and 76.8°F respectively.

Terceira Island on the Weather Map

Best Time to Visit Terceira Island
The most sunny months:
August 8 days
September 7 days
June 7 days
The most warm months:
August 78.1 °F
September 75.8 °F
July 75.3 °F
Warmest sea temperature:
August 76.5 °F
September 75.4 °F
July 73.0 °F
The most cold months:
March 60.9 °F
February 60.9 °F
January 61.7 °F
The most rainy months:
December 5 days
February 4 days
January 4 days
The most windy months:
December 17 mph
January 17 mph
February 16 mph
Portugal Resorts:
NAME
Albufeira +74
Algarve +76
Cascais +70
Ericeira +68
Faro +76
Funchal +64
Lagos +70
Lisbon +72
Madeira +64
Ponta Delgada +76
Portimao +66
Porto +66
Quarteira +76
Sao Miguel +76
Setubal +72
24 Hours Weather Forecast
Terceira Island
Local time: 00:27
09 sep, wednesday
0300 72°F
SE
4 mph
0600 72°F
SE
4 mph
0900 74°F
E
4 mph
1200 80°F
SE
5 mph
1500 82°F
SE
4 mph
1800 78°F
SE
5 mph
2100 74°F
SE
1 mph
10 sep, thursday
0000 72°F
E
2 mph