August weather forecast
Porto Santo Island, Portugal

August remains warm and inviting in Porto Santo Island, maintaining the trend of higher temperatures that started in July. The days are long and sunny with plenty of opportunities to engage in various beach activities or explore the vast island landscape. Consistently mild sea temperatures coupled with balmy nights complement the tropical island atmosphere, making it a delightful period to visit. Though rainfall slightly increases from the previous month to 6mm (0.24") across three days, it does not detract from the overarching wonderful weather conditions. The UV index takes a slight dip compared to the peak of summer months, but protection from the sun's rays remains a priority.

Temperature

Porto Santo Island's warmest period falls in August and September, when the average high-temperatures ascend to 25.1°C (77.2°F).

Humidity

In August, the average relative humidity in Porto Santo Island is 76%.

Rainfall

In Porto Santo Island, in August, during 3 rainfall days, 6mm (0.24") of precipitation is typically accumulated. In Porto Santo Island, during the entire year, the rain falls for 97 days and collects up to 382mm (15.04") of precipitation.

Sea temperature

In August, the average sea temperature in Porto Santo Island, Portugal, is 22.9°C (73.2°F).
Note: If cold is not your friend, swimming at 22.9°C (73.2°F) might be daunting. But the right mix of sunshine, wind, and external temperature can make a difference. Although wetsuits are not essential, they can enhance the swimming experience.

Daylight

The average length of the day in August is 13h and 20min.
On the first day of August in Porto Santo Island, sunrise is at 07:19 and sunset at 21:04. On the last day of the month, sunrise is at 07:39 and sunset at 20:31 WEST.

Sunshine

July and August, with an average of 8h of sunshine, are months with the most sunshine.

UV index

The average daily maximum UV index in August is 9. A UV Index reading of 8 to 10 represents a very high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 9 in August translates into this advice:
Always prioritize safety measures. Rapid harm can befall unprotected skin and eyes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Staying too long under direct sunlight isn't advisable, particularly for those who burn quickly. Use at least a 30 SPF sunscreen for protection. Caution! The Sun's UV intensity grows with reflections off sand and water.