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Cascais weather in April

Weather in Cascais: April

Average day temperature: 64.1°F
Average night temperature: 57.7°F
Sea water temperature: 59.5°F
Number of sunny days: 14 days
Day length: 12.6 - 13.8 hours
Number of rainy days: 3 days
Precipitation totals: 1.7 in.

Air temperature in April, °F

Show year:
2026
2025
2024

The highest day temperature during April of 2026 was 68°F. At the same time the lowest night temperature was 50°F. Daily and nightly averages during April were 62.7°F and 57.4°F.

Sea water temperature in Cascais in April, °F

Show year:
2026
2025
2024

The average sea water temperature in April of 2026 was 59.3°F. The highest and lowest sea temperatures during the month were 61.5°F and 57.7°F.

Sunny, partly cloudy and cloudy days

Number of sunny, partly cloudy and cloudy days in April is almost equal.

Precipitation total in April, in.

Precipitation total value in Cascais in April is 1.4 in. Other months of the year show relatively similar values.

Wind speed in April, mph

The average wind speed value in April is 12.2 mph It makes April one of the least windy months of the year.

Average sunny hours

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 April is: 8.2.

Best time for vacation in Cascais

Sunniest months:
August 27 days
July 26 days
September 23 days
Warmest months:
August 76.5 °F
July 75.3 °F
September 74.8 °F
Warmest sea temp:
September 64.7 °F
October 64.4 °F
August 64.0 °F
Coldest months:
January 59.0 °F
February 59.3 °F
March 61.0 °F
Rainiest months:
November 5 days
March 4 days
December 4 days
Windiest months:
July 14.0 mph
August 13.5 mph
June 13.1 mph

Cascais on a weather map

Cascais
+66°F
SE 13 mph
Feels like: +66°F
Precip.: 0%
Places in Portugal:
Name
°F
+68°F
+68°F
+66°F
+68°F
+73°F
+63°F
+63°F
+70°F
+70°F
+63°F
+73°F
+68°F
+63°F
+66°F
24 Hours Forecast
Cascais
Local time: 18:49
April 27, monday
2100
63°F
S
13 mph
April 28, tuesday
0000
61°F
S
13 mph
0300
61°F
S
9 mph
0600
61°F
S
11 mph
0900
63°F
S
10 mph
1200
66°F
S
9 mph
1500
64°F
SE
9 mph
1800
63°F
SE
13 mph
Units of measurement: °C / °F