World Resorts Portugal Terceira Island Weather

Terceira Island 14 Days Forecast

18.07
sat
Day
73°F
W 3 mph
Precip.
32%
Night
68°F
W 7 mph
Precip.
30%
19.07
sun
Day
72°F
W 9 mph
Precip.
33%
Night
68°F
W 10 mph
Precip.
27%
20.07
mon
Day
70°F
W 11 mph
Precip.
18%
Night
66°F
W 8 mph
Precip.
22%
21.07
tue
Day
68°F
W 9 mph
Precip.
19%
Night
66°F
SW 6 mph
Precip.
11%
22.07
wed
Day
70°F
SW 4 mph
Precip.
15%
Night
66°F
SW 6 mph
Precip.
19%
23.07
thu
Day
70°F
W 4 mph
Precip.
13%
Night
66°F
W 5 mph
Precip.
22%
24.07
fri
Day
70°F
W 3 mph
Precip.
16%
Night
66°F
SW 6 mph
Precip.
24%
25.07
sat
Day
70°F
W 8 mph
Precip.
13%
Night
66°F
W 7 mph
Precip.
10%
26.07
sun
Day
70°F
W 7 mph
Precip.
5%
Night
66°F
W 9 mph
Precip.
13%
27.07
mon
Day
70°F
W 9 mph
Precip.
5%
Night
68°F
NW 8 mph
Precip.
16%
28.07
tue
Day
70°F
W 8 mph
Precip.
17%
Night
68°F
SW 6 mph
Precip.
24%
29.07
wed
Day
70°F
W 12 mph
Precip.
25%
Night
68°F
W 7 mph
Precip.
10%
30.07
thu
Day
70°F
W 11 mph
Precip.
19%
Night
68°F
W 6 mph
Precip.
10%
31.07
fri
Day
70°F
W 6 mph
Precip.
16%
Night
70°F
SW 4 mph
Precip.
28%

Sea water temperature in July, °F

Show year:
2026
2025
2024

The average sea water temperature in July of 2026 was 68.7°F. The highest and lowest sea temperatures during the month were 69.8°F and 66.9°F.

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 74.3°F. The highest and lowest sea temperatures during the month were 75.9°F and 72.5°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

Sunniest months:
August 9 days
June 7 days
July 7 days
Warmest months:
August 75.4 °F
September 73.3 °F
July 73.0 °F
Warmest sea temp:
August 73.9 °F
September 72.9 °F
July 70.7 °F
Coldest months:
March 59.8 °F
February 59.8 °F
January 60.5 °F
Rainiest months:
December 5 days
February 4 days
January 4 days
Windiest months:
December 17.0 mph
January 16.8 mph
February 16.1 mph

Terceira Island on a weather map

Terceira Island
+70°F
SW 1 mph
Feels like: +70°F
Precip.: 24%
Places in Portugal:
Name
°F
+66°F
+70°F
+66°F
+66°F
+64°F
+64°F
+66°F
+68°F
+63°F
+64°F
+68°F
+63°F
+70°F
+66°F
+63°F
24 Hours Forecast
Terceira Island
Local time: 03:08
July 18, saturday
0600
68°F
S
2 mph
0900
70°F
SW
3 mph
1200
73°F
W
3 mph
1500
73°F
NW
3 mph
1800
72°F
NW
5 mph
2100
70°F
W
6 mph
July 19, sunday
0000
68°F
W
7 mph
0300
68°F
W
7 mph
Units of measurement: °C / °F