Measurements:
°C
°F
CURRENT WEATHER
02:39
Terceira Island
62°F
SE 18 mph
Feels like: 62°F
Precip: 26%
World Resorts Portugal Terceira Island Weather

7 Day Weather Forecast

09.29
tue
DAY
66°F
SE 17 mph
precip
12%
NIGHT
60°F
SE 8 mph
precip
24%
09.30
wed
DAY
68°F
SE 7 mph
precip
14%
NIGHT
62°F
NW 2 mph
precip
10%
10.01
thu
DAY
70°F
NW 8 mph
precip
15%
NIGHT
64°F
NW 11 mph
precip
61%
10.02
fri
DAY
74°F
N 7 mph
precip
29%
NIGHT
68°F
N 16 mph
precip
65%
10.03
sat
DAY
70°F
N 11 mph
precip
40%
NIGHT
68°F
N 10 mph
precip
53%
10.04
sun
DAY
70°F
NW 14 mph
precip
59%
NIGHT
66°F
NW 10 mph
precip
45%
10.05
mon
DAY
72°F
NW 11 mph
precip
14%
NIGHT
66°F
NW 11 mph
precip
48%

Terceira Island Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Terceira Island was 24.0°F. The maximum and minimum values were 23.1°F and 24.7°F respectively.

Terceira Island on the Weather Map

Best Time to Visit Terceira Island
The most sunny months:
August 8 days
June 7 days
March 6 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 75.6 °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
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