Measurements:
°C
°F
Terceira Island
66°F
SE 13 mph
Feels like: 66°F
Precip: 35%
World Resorts Portugal Terceira Island Weather

7 Day Weather Forecast

07.10
fri
DAY
70°F
SE 14 mph
precip
4%
NIGHT
66°F
SE 9 mph
precip
21%
07.11
sat
DAY
70°F
S 6 mph
precip
4%
NIGHT
66°F
S 3 mph
precip
7%
07.12
sun
DAY
68°F
N 3 mph
precip
17%
NIGHT
68°F
NW 7 mph
precip
40%
07.13
mon
DAY
70°F
W 12 mph
precip
32%
NIGHT
70°F
W 9 mph
precip
22%
07.14
tue
DAY
74°F
SW 8 mph
precip
7%
NIGHT
70°F
SW 5 mph
precip
10%
07.15
wed
DAY
72°F
S 1 mph
precip
6%
NIGHT
70°F
SW 4 mph
precip
10%
07.16
thu
DAY
74°F
W 6 mph
precip
6%
NIGHT
70°F
W 6 mph
precip
12%

Terceira Island Sea Water Temperature in July, °F

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Terceira Island was 21.5°F. The maximum and minimum values were 20.2°F and 22.6°F respectively.

Terceira Island on the Weather Map

Best Time to Visit Terceira Island
The most sunny months:
August 9 days
June 7 days
July 7 days
The most warm months:
August 78.2 °F
September 75.8 °F
July 75.5 °F
Warmest sea temperature:
August 76.6 °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