Water temperature in Cascais
Cascais and the surrounding regions are ideal for beach vacations from May to September. The air temperature stays consistently at +27-28°C. At the same time the water temperature is around +20°C. It should be noted that in July-August in the resort town attracts a large number of tourists, including residents of Lisbon (especially in August), so for those who prefer a quieter vacation - it is better to come here in June or September.
In the rest of the year, the ocean is quite cold and for a beach vacation it is preferable to choose a resort in the south of the country. But travelers who don't care about swimming can visit Cascais in spring, fall or winter.
The climatic conditions of the Atlantic Ocean are determined by the circulation of air masses. The water temperature in the Atlantic Ocean is largely dependent on water exchange with the Arctic Ocean, the Antarctic Seas and the Mediterranean Sea. The surface waters of the ocean are characterized by gradual cooling as they move away from the equator. The average water temperature in the Atlantic Ocean for the tropics is +20°C.
