Measurements:
°C
°F
CURRENT WEATHER
06:51
Terceira Island
66°F
W 9 mph
Feels like: 66°F
Precip: 27%
World Resorts Portugal Terceira Island Weather

7 Day Weather Forecast

10.19
mon
DAY
68°F
W 9 mph
precip
17%
NIGHT
62°F
NW 2 mph
precip
8%
10.20
tue
DAY
66°F
SW 7 mph
precip
23%
NIGHT
62°F
W 11 mph
precip
30%
10.21
wed
DAY
66°F
NW 5 mph
precip
16%
NIGHT
66°F
N 9 mph
precip
36%
10.22
thu
DAY
70°F
E 11 mph
precip
25%
NIGHT
66°F
E 6 mph
precip
38%
10.23
fri
DAY
72°F
E 5 mph
precip
18%
NIGHT
64°F
NE 3 mph
precip
18%
10.24
sat
DAY
72°F
NE 5 mph
precip
6%
NIGHT
64°F
N 6 mph
precip
27%
10.25
sun
DAY
72°F
NE 10 mph
precip
9%
NIGHT
68°F
NE 11 mph
precip
54%

Terceira Island Sea Water Temperature in October, °F

Select Year: 2026 2025 2024

The average sea surface temperature in October 2026 for Terceira Island was 21.7°F. The maximum and minimum values were 21.3°F and 22.1°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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