Weather in Portimao: August
| Average day temperature: | 82.3°F | |
| Average night temperature: | 66.1°F | |
| Sea water temperature: | 68.2°F | |
| Number of sunny days: | 30 days | |
| Day length: | 13.0 - 14.0 hours | |
| Number of rainy days: | 0 days | |
| Precipitation totals: | 0.1 in. | |
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forecast
| Portimao |
temperature
| Portimao |
Air temperature in August, °F
The highest day temperature during August of 2025 was 92°F. At the same time the lowest night temperature was 61°F. Daily and nightly averages during August were 81.6°F and 67.3°F.
Sea water temperature in Portimao in August, °F
The average sea water temperature in August of 2025 was 71.6°F. The highest and lowest sea temperatures during the month were 75.4°F and 66.7°F.
Almost all days of August in Portimao are sunny. Cloudy days are rare.
Precipitation total in August, in.
Precipitation total value in Portimao in August is 0.0 in. Other months of the year show relatively similar values.
The average wind speed value in August is 9.6 mph
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in August is: 12.8.
Best time for vacation in Portimao
Portimao on a weather map

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