World Resorts Portugal Terceira Island Weather

Terceira Island Sea Temperature in September

Average sea water temperature in September:
+72.9°F
Minimum sea water temperature in September: 77.0°F
Maximum sea water temperature in September: 68.7°F

Daily sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 72.6°F. The highest and lowest sea temperatures during the month were 74.1°F and 70.7°F.

Monthly sea water temperature in Terceira Island, °F

Which Portugal resorts have warmest sea in September?

Place name September 2025 September 2024
Madeira 74.6°F 74.8°F
Funchal 74.6°F 74.8°F
Canico 74.3°F 74.6°F
Porto Santo Island 74.1°F 74.1°F
Santa Maria Island 73.7°F 75.6°F
Sao Jorge 73.3°F 75.3°F
Pico Island 73.1°F 75.2°F
Ponta Delgada 73.1°F 75.8°F
Faial Island 73.1°F 75.2°F
Sao Miguel 72.9°F 75.5°F
Flores Island 72.8°F 75.4°F
Graciosa 72.7°F 75.1°F
Terceira Island 72.6°F 74.6°F
Corvo Island 72.6°F 75.2°F
Algarve 67.0°F 68.3°F
Faro 67.0°F 68.3°F
Tavira 66.5°F 69.0°F
Quarteira 66.0°F 66.9°F
Lisbon 65.9°F 65.1°F
Albufeira 65.5°F 66.7°F

Best time for vacation in Terceira Island

Sunniest months:
August 9 days
July 7 days
June 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:
February 59.9 °F
March 60.0 °F
January 60.7 °F
Rainiest months:
December 5 days
February 4 days
January 4 days
Windiest months:
December 17.2 mph
January 16.7 mph
March 15.9 mph

Terceira Island on a weather map

Terceira Island
+63°F
NE 22 mph
Feels like: +63°F
Precip.: 72%
Places in Portugal:
Name
°F
+57°F
+59°F
+61°F
+57°F
+61°F
+61°F
+54°F
+64°F
+59°F
+54°F
+64°F
+59°F
+54°F
24 Hours Forecast
Terceira Island
Local time: 03:50
December 05, friday
0600
63°F
NE
21 mph
0900
63°F
NE
19 mph
1200
63°F
NE
19 mph
1500
63°F
NE
22 mph
1800
63°F
NE
21 mph
2100
63°F
NE
24 mph
December 06, saturday
0000
64°F
NE
27 mph
0300
64°F
NE
27 mph
Units of measurement: °C / °F