World Resorts Portugal Algarve Weather

Algarve sea water temperature

Current sea water temperature:
+59.9°F
Minimum sea water temperature in December: 66.9°F
Maximum sea water temperature in December: 58.3°F
Average sea water temperature in December: 63.0°F

Sea water temperature for the last 10 days:

December 25 59.9°F December 20 61.3°F
December 24 60.1°F December 19 61.5°F
December 23 60.8°F December 18 61.5°F
December 22 60.3°F December 17 61.0°F
December 21 61.2°F December 16 61.3°F

When is the warmest sea in Algarve?

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

Monthly Sea Temperatures in Algarve, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 73.4°F. The highest and lowest sea temperatures during the month were 78.1°F and 67.8°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 67.0°F. The highest and lowest sea temperatures during the month were 69.1°F and 64.8°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 70.4°F. The highest and lowest sea temperatures during the month were 76.8°F and 64.9°F.

Best time for vacation in Algarve

Sunniest months:
August 30 days
July 30 days
June 26 days
Warmest months:
August 81.6 °F
July 80.8 °F
September 77.4 °F
Warmest sea temp:
August 70.4 °F
September 70.0 °F
July 69.6 °F
Coldest months:
January 59.4 °F
February 59.6 °F
December 61.5 °F
Rainiest months:
November 3 days
March 3 days
December 2 days
Windiest months:
March 11.6 mph
February 11.0 mph
April 10.7 mph

Algarve on a weather map

Algarve
+57°F
E 8 mph
Feels like: +55°F
Precip.: 0%
Places in Portugal:
Name
°F
+57°F
+57°F
+54°F
+57°F
+57°F
+54°F
+55°F
+61°F
+57°F
+50°F
+61°F
+57°F
+55°F
24 Hours Forecast
Algarve
Local time: 15:01
December 25, thursday
1800
55°F
S
10 mph
2100
52°F
S
9 mph
December 26, friday
0000
48°F
S
9 mph
0300
48°F
S
7 mph
0600
48°F
SE
9 mph
0900
48°F
S
9 mph
1200
52°F
S
8 mph
1500
54°F
SE
9 mph

Best place for vacation:

Units of measurement: °C / °F