Measurements:
°C
°F
Terceira Island
52°F
E 8 mph
Feels like: 48°F
Precip: 0%
World Resorts Portugal Terceira Island Weather

Terceira Island Sea Water Temperature

Current Sea Water Temperature:
+61.4°F
Maximum Sea Water Temperature in March: 64.6°F
Minimum Sea Water Temperature in March: 58.8°F
Average water temperature in March: 61.4°F

Sea Water Temperature for the Last 10 Days:

March 02 61.4°F February 25 61.0°F
March 01 61.0°F February 24 61.0°F
February 28 60.8°F February 23 61.8°F
February 27 61.4°F February 22 61.0°F
February 26 60.8°F February 21 60.8°F

When is the Warmest Sea for Terceira Island?

According to our data for the last three years for Terceira Island the highest average sea water temperature was in August, September and July.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Terceira Island was 77.0°F. The maximum and minimum values were 75.0°F and 78.8°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Terceira Island was 75.2°F. The maximum and minimum values were 73.0°F and 76.8°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Terceira Island was 73.1°F. The maximum and minimum values were 70.4°F and 75.2°F respectively.

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:
February 60.9 °F
March 61.1 °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

Terceira Island on the Weather Map

Portugal Resorts:
NAME
Albufeira +54
Algarve +58
Cascais +56
Faro +56
Funchal +52
Lagos +56
Lisbon +54
Madeira +52
Ponta Delgada +52
Portimao +54
Porto +52
Porto Santo Island +58
Sao Miguel +52
Setubal +56
Sintra +54
24 Hours Weather Forecast
Terceira Island
Local time: 03:05
03 mar, tuesday
0600 52°F
E
10 mph
0900 56°F
E
10 mph
1200 60°F
E
9 mph
1500 62°F
E
11 mph
1800 62°F
E
9 mph
2100 60°F
E
9 mph
04 mar, wednesday
0000 58°F
NE
9 mph
0300 60°F
E
10 mph