World Resorts Portugal Terceira Island Weather

Terceira Island sea water temperature

Current sea water temperature:
+71.4°F
Minimum sea water temperature in October: 74.5°F
Maximum sea water temperature in October: 64.2°F
Average sea water temperature in October: 69.7°F

Sea water temperature for the last 10 days:

October 4 71.4°F September 29 73.2°F
October 3 71.8°F September 28 73.6°F
October 2 71.8°F September 27 73.9°F
October 1 71.6°F September 26 74.3°F
September 30 72.0°F September 25 74.7°F

When is the warmest sea in Terceira Island?

Based on the data about daily sea water temperature for the last three years the warmest sea in Terceira Island was noticed in August, September and July.

Monthly Sea Temperatures in Terceira Island, °F

Sea water temperature in August, °F

Show year:
2026
2025
2024

The average sea water temperature in August of 2026 was 73.6°F. The highest and lowest sea temperatures during the month were 75.0°F and 71.6°F.

Sea water temperature in September, °F

Show year:
2026
2025
2024

The average sea water temperature in September of 2026 was 75.0°F. The highest and lowest sea temperatures during the month were 76.5°F and 72.0°F.

Sea water temperature in July, °F

Show year:
2026
2025
2024

The average sea water temperature in July of 2026 was 69.5°F. The highest and lowest sea temperatures during the month were 71.6°F and 66.9°F.

Best time for vacation in Terceira Island

Sunniest months:
August 8 days
June 7 days
March 6 days
Warmest months:
August 75.3 °F
September 73.2 °F
July 72.8 °F
Warmest sea temp:
August 73.9 °F
September 73.0 °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
+66°F
NW 8 mph
Feels like: +66°F
Precip.: 24%
Places in Portugal:
Name
°F
+70°F
+70°F
+68°F
+70°F
+70°F
+68°F
+61°F
+66°F
+63°F
+66°F
+66°F
+64°F
+70°F
+61°F
+64°F
24 Hours Forecast
Terceira Island
Local time: 02:18
October 05, monday
0300
66°F
NW
8 mph
0600
63°F
NW
6 mph
0900
64°F
W
7 mph
1200
68°F
W
9 mph
1500
68°F
W
8 mph
1800
68°F
W
6 mph
2100
63°F
W
4 mph
October 06, tuesday
0000
63°F
W
5 mph
Units of measurement: °C / °F