Current sea water temperature:
+69.4°F
| Minimum sea water temperature in September: | 75.4°F |
| Maximum sea water temperature in September: | 60.6°F |
| Average sea water temperature in September: | 68.4°F |
| more information | |
14 days
forecast
forecast
| Portimao |
monthly
weather
weather
| Portimao |
Sea water temperature for the last 10 days:
| September 14 | 69.4°F | September 9 | 69.6°F |
| September 13 | 68.5°F | September 8 | 68.9°F |
| September 12 | 68.5°F | September 7 | 69.6°F |
| September 11 | 68.0°F | September 6 | 68.9°F |
| September 10 | 68.0°F | September 5 | 67.1°F |
Monthly sea water temperature, °F
When is the warmest sea in Portimao?
Based on the data about daily sea water temperature for the last three years the warmest sea in Portimao was noticed in September, August and October.
Monthly Sea Temperatures in Portimao, °F
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 65.1°F. The highest and lowest sea temperatures during the month were 67.6°F and 61.9°F.
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 66.8°F. The highest and lowest sea temperatures during the month were 70.0°F and 64.4°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 67.6°F. The highest and lowest sea temperatures during the month were 69.6°F and 64.9°F.
current
weather
weather
| Portimao |
weather in
September
September
| Portimao |
Best time for vacation in Portimao
Portimao on a weather map
Places in Portugal:
Name
°F
24 Hours Forecast
Portimao
Local time: 00:10
September 15, tuesday
0300
72°F
S
6 mph
6 mph
0600
70°F
S
6 mph
6 mph
0900
79°F
S
4 mph
4 mph
1200
93°F
SE
4 mph
4 mph
1500
95°F
SE
9 mph
9 mph
1800
86°F
SE
11 mph
11 mph
2100
68°F
S
8 mph
8 mph
September 16, wednesday
0000
64°F
S
10 mph
10 mph
