Current Sea Water Temperature:
+66.0°F
| Maximum Sea Water Temperature in July: | 78.4°F |
| Minimum Sea Water Temperature in July: | 61.2°F |
| Average water temperature in July: | 69.2°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| July 30 | 66.0°F | July 25 | 64.8°F |
| July 29 | 65.6°F | July 24 | 65.4°F |
| July 28 | 65.2°F | July 23 | 66.0°F |
| July 27 | 63.8°F | July 22 | 65.6°F |
| July 26 | 64.0°F | July 21 | 66.8°F |
When is the Warmest Sea for Portimao?
According to our data for the last three years for Portimao the highest average sea water temperature was in September, August and October.
Average Water Temperature by Month, °F
Sea Water Temperature in September
The average sea surface temperature in September 2025 for Portimao was 66.8°F. The maximum and minimum values were 63.2°F and 69.6°F respectively.
Sea Water Temperature in August
The average sea surface temperature in August 2025 for Portimao was 74.0°F. The maximum and minimum values were 68.6°F and 78.2°F respectively.
Sea Water Temperature in October
The average sea surface temperature in October 2025 for Portimao was 69.6°F. The maximum and minimum values were 66.6°F and 71.8°F respectively.
Portugal Resorts:
NAME
F°
| Albufeira |  |
+82 |
| Algarve | |
+76 |
| Cascais | |
+74 |
| Ericeira | |
+76 |
| Faro | |
+76 |
| Funchal |  |
+76 |
| Lagos | |
+82 |
| Lisbon | |
+80 |
| Madeira | |
+76 |
| Ponta Delgada |  |
+78 |
| Portimao | |
+86 |
| Porto | |
+72 |
| Quarteira | |
+82 |
| Sao Miguel | |
+78 |
| Setubal | |
+84 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Portimao
Local time: 11:51
30 jul, thursday
| 1200 |  |
86°F | NE 4 mph |
| 1500 |  |
88°F | E 9 mph |
| 1800 | |
86°F | SE 16 mph |
| 2100 |  |
70°F | SE 15 mph |
31 jul, friday
| 0000 |  |
68°F | S 9 mph |
| 0300 | |
66°F | S 9 mph |
| 0600 | |
64°F | S 8 mph |
| 0900 | |
74°F | S 9 mph |