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Cascais — weather in September, water temperature

24.4°C Daytime temperatures 19.5°C Night temperatures 24 Sunny days 11.8-13 Sun (hours) 2 Rainy days 30.1 mm Precipitation 18.4°C water temperature
Air temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013
The maximum daily temperature 33.5°C — 6 September 2016.
The maximum night temperature 24.5°C — 7 September 2020.
The minimum daily temperature 18.5°C — 18 September 2021.
The minimum night temperature 16°C — 11 September 2019.
water temperature
2022 2021 2020 2019 2018 2017 2016 2015 2013 2012
The warmest water 20.6 °C — 20 September 2022. The coldest water 15.1 °C — 30 September 2022.
Sunny, cloudy and gloomy days
Precipitation, mm
Maximum precipitation 80 mm — November. Minimum precipitation 2.8 mm — July.
Wind speed, km / h
Maximum wind speed 22.2 km / h — July. Minimum wind speed 18 km / h — October.
Number of hours of sunshine
The maximum number of hours of sunshine per day 12.4 h. — July. The minimum number of hours of sunshine per day 6 h. — December.
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