Weather in Cascais, Portugal in May

So you're interested in going to Cascais, Portugal in May

May is a warm and very dry time for sunbathing in Cascais. May is a little too cold to enjoy swimming in Cascais for any length of time. Consider visiting Cascais in the months of June, July, August, September, for the best beach weather. Also consider one of our other suggestions for May.

Temperature in Cascais in May

The average maximum temperature in Cascais in May is 23°. The average maximum temperature is 21° in the previous month and 27° in the next month.

The average temperature in Cascais in May is 19°. The average temperature ranges is 16° in the previous month and 22° in the next month.

The average minimum temperature in Cascais in May is 15°. The minimum temperature is 12° in the previous month and 18° in the next month.

Sunshine in Cascais in May

The average day light hours per day in Cascais in May are 14.2 and there are 9.5 hours of sunshine per day on average during May making it a sunny month with few clouds.

The ultraviolet index in Cascais in May is typically 9.3 during May. An ultraviolet index reading of 8 to 10 indicates a very high risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 15 minutes. Take extra precautions because unprotected skin and eyes will be damaged and can burn quickly. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in Cascais in May

The average sea water temperature in Cascais in May is 18° which is cool for swimming, shorty wetsuit may help you extend your time in the water.

Rainfall in Cascais in May

The average total rainfall in Cascais in May is 0.2cm and on average there are 4.8 rainy days in May making it a very dry time to visit the beach.

Humidity in Cascais in May

The maximum dew point (an indicator of humidity) in Cascais in May is 15° which is comfortable for everyone. The dew point is 14° in the previous month and 18° in the next month.

The average maximum relative humidity in Cascais in May is typically 86.8%. The maximum relative humidity is 91.1% in the previous month and 86% in the next month.

The average relative humidity in Cascais in May is typically 66.5%. The average relative humidity is 71.9% in the previous month and 64.9% in the next month.

Wind Speed in Cascais in May

The average maximum wind speed in Cascais in May is typically 28kmh. The average maximum wind speed is 28kmh in the previous month and 27kmh in the next month.

The average wind speed in Cascais in May is typically 14kmh. The average wind speed is 14kmh in the previous month and 13kmh in the next month.

The average wind direction in Cascais in May is from the West-Northwest.

Monthly Averages

Suggested Beaches in May

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