Weather in Cascais: August
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Average day temperature: | 76.5°F |
| Average night temperature: | 66.4°F | |
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Sea water temperature: | 64.0°F |
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Number of sunny days: | 27 days |
| Day length: | 13.1 - 14.2 hours | |
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Number of rainy days: | 0 days |
| Precipitation totals: | 0.1 in. | |
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forecast
| Cascais |
temperature
| Cascais |
Air temperature in August, °F
The highest day temperature during August of 2025 was 78°F. At the same time the lowest night temperature was 62°F. Daily and nightly averages during August were 72.5°F and 66.2°F.
Sea water temperature in Cascais in August, °F
The average sea water temperature in August of 2025 was 65.2°F. The highest and lowest sea temperatures during the month were 67.5°F and 63.3°F.
Mostly all days in August are sunny but cloudy days are also possible.
Precipitation total in August, in.
Precipitation total value in Cascais in August is 0.0 in. Other months of the year show relatively similar values.
The average wind speed value in August is 14.0 mph It makes August most windy month of the year.
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: 11.9.
Best time for vacation in Cascais
Cascais on a weather map
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