March weather forecast
Cascais, Portugal

Characterized by improved temperatures, Cascais in March paints the first authentic hues of spring, differentiating it distinctly from February. Rainfall exhibits a substantial decline, reducing significantly to 78mm (3.07"). The shift towards spring makes March stand out as a transitional month, promoting growth and color across the charming landscape of the city. Gradual lengthening daylight brings a brighter mood, although still less than the upcoming blooming month of April.

Temperature

The arrival of March in Cascais sees a recorded average high-temperature of a comfortable 17°C (62.6°F), showing little divergence from the previous month's conditions. During the nights in March, Cascais experiences a consistent average temperature of 10°C (50°F).

Rainfall

In Cascais, in March, during 13 rainfall days, 78mm (3.07") of precipitation is typically accumulated. In Cascais, during the entire year, the rain falls for 116 days and collects up to 841mm (33.11") of precipitation.

Sea temperature

March is the month with the coldest seawater in Cascais, with an average sea temperature of 15.1°C (59.2°F).
Note: For most individuals, swimming in 15.1°C (59.2°F) is not enjoyable. As the water temperature decreases from 21°C (69.8°F) to 15°C (59°F), breathing control becomes increasingly difficult.

Daylight

The average length of the day in March in Cascais is 11h and 58min.
On the first day of March, sunrise is at 07:08 and sunset at 18:30. On the last day of the month, sunrise is at 06:22 and sunset at 19:00 WET.

Sunshine

The average sunshine in March in Cascais is 7h.

UV index

The average daily maximum UV index in March in Cascais is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In March, the maximum UV index of 5 translates into these guidelines:
Put precautions into practice - Protective measures against sun-induced damage are advised. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.