Measurements:
°C
°F
Terceira Island
56°F
S 22 mph
Feels like: 52°F
Precip: 100%
World Resorts Portugal Terceira Island Weather

7 Day Weather Forecast

05.10
sun
DAY
58°F
S 23 mph
precip
100%
NIGHT
58°F
SW 19 mph
precip
100%
05.11
mon
DAY
58°F
SW 20 mph
precip
100%
NIGHT
56°F
SW 11 mph
precip
100%
05.12
tue
DAY
60°F
SW 14 mph
precip
78%
NIGHT
58°F
SW 10 mph
precip
100%
05.13
wed
DAY
60°F
SW 14 mph
precip
100%
NIGHT
56°F
SW 11 mph
precip
88%
05.14
thu
DAY
62°F
SW 9 mph
precip
79%
NIGHT
56°F
S 7 mph
precip
0%
05.15
fri
DAY
60°F
SE 5 mph
precip
0%
NIGHT
60°F
S 9 mph
precip
100%
05.16
sat
DAY
60°F
S 9 mph
precip
0%
NIGHT
56°F
SW 6 mph
precip
0%

Terceira Island Sea Water Temperature in May, °F

Select Year: 2025 2024 2023

The average sea surface temperature in May 2025 for Terceira Island was 16.9°F. The maximum and minimum values were 16.1°F and 18.4°F respectively.

Terceira Island on the Weather Map

Best Time to Visit Terceira Island
The most sunny months:
August 9 days
July 7 days
June 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