Portugal

Cascais

Cascais - photo 1

Photo by Irvin Aloise on Unsplash.

Cascais is a coastal town just west of Lisbon, known as a practical gateway to the Lisbon coast for divers. It offers access to nearby dive centers and a variety of shore dives and boat trips along the Atlantic shoreline. The area features clear Atlantic water, mild seasonal temperatures, and abundant marine life typical of shallow reef and rocky coastal habitats. While the town itself is not a primary diving hub, its proximity to Lisbon makes it a convenient base for day trips to nearby sites around the Cascais coastline and beyond.

Essential information for traveling in Portugal

About Portugal

Sea
Bay of Biscay, Caribbean Sea, North Atlantic Oc...
Timezone
Europe/Lisbon
Languages
PT
Demonym
Portuguese
Phone prefix
+351

Practicalities

Currency
EUR
Voltage
230
Plug type
Type C, Type F
Airports
LIS OPO FAO FNC PDL

Diving specifics

Temperature
°C
Depth units
meters
Pressure
bar
Regulators
DIN Yoke (INT)

Dive sites and dive centers around Cascais

Nearby Dive Sites (16)

Nearby Dive Centers (2)

Nearby cities for scuba diving around Cascais

The best time to dive in Cascais

The best months to dive in Cascais are from May to September. Temperatures are confortable (17-20°C), currents are mild and the visibility is at its best.

Excellent Good Fair Mitigated
01 - Jan.
14 °C 16 °C 4/10
02 - Feb.
13 °C 15 °C 6/10
03 - Mar.
13 °C 15 °C 4/10
04 - Apr.
16 °C 16 °C 6/10
05 - May
17 °C 16 °C 7/10
06 - Jun.
19 °C 17 °C 7/10
07 - Jul.
20 °C 17 °C 7/10
08 - Aug.
20 °C 17 °C 8/10
09 - Sept.
19 °C 16 °C 7/10
10 - Oct.
19 °C 17 °C 7/10
11 - Nov.
15 °C 18 °C 4/10
12 - Dec.
13 °C 16 °C 5/10

Based on last year's weather. Scores compare months for this destination only and are indicative. A mitigated month may still suit many divers.

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