April weather forecast
Porto Santo Island, Portugal

The scenic Praia Cabeco da Ponta, on the Porto Santo Island in Portugal
The scenic Praia Cabeco da Ponta, on the Porto Santo Island in Portugal

Weather in April

April, the same as March, is another enjoyable spring month in Porto Santo Island, Portugal, with an average temperature fluctuating between 14.1°C (57.4°F) and 19.1°C (66.4°F).

Temperature

In Porto Santo Island, the average high-temperature in April is essentially the same as in March - a still enjoyable 19.1°C (66.4°F). In April, the average low-temperature is 14.1°C (57.4°F).

Humidity

April is the least humid month, with an average relative humidity of 74%.

Rainfall

In Porto Santo Island, Portugal, during April, the rain falls for 7 days and regularly aggregates up to 21mm (0.83") of precipitation. Throughout the year, there are 97 rainfall days, and 382mm (15.04") of precipitation is accumulated.

Sea temperature

In Porto Santo Island, the average water temperature is 17.9°C (64.2°F).
Note: For swimming, a surface water temperature of 17.9°C (64.2°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

Daylight

In April, the average length of the day is 13h and 1min.
On the first day of April, sunrise is at 07:52 and sunset at 20:25. On the last day of the month, sunrise is at 07:18 and sunset at 20:46 WEST.

Sunshine

In Porto Santo Island, the average sunshine in April is 6h.

UV index

The average daily maximum UV index in April is 8. A UV Index reading of 8 to 10 represents a very high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 8 in April interpret into the following advice:
Take extra precautions. Fair-skinned individuals may get burned in less than 10 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the least humid month in Porto Santo Island?

With an average relative humidity of 74%, April is the least humid month.

What is the average humidity in April in Porto Santo Island?

In April, the average relative humidity is 74%.

How many days does it rain in April in Porto Santo Island?

In April, in Porto Santo Island, Portugal, the rain falls for 7 days. Throughout April, 21mm (0.83") of precipitation is accumulated.

What is the sea water temperature in April in Porto Santo Island?

In April, the average sea temperature in Porto Santo Island is 17.9°C (64.2°F). Swimming in 17.9°C (64.2°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

What is the average length of the day in April in Porto Santo Island?

In Porto Santo Island, the average day length in April is 13h and 1min.

When is the sunrise / sunset in April in Porto Santo Island?

On the first day of April in Porto Santo Island, sunrise is at 07:52 and sunset at 20:25. On the last day of the month, sunrise is at 07:18 and sunset at 20:46 WEST.

How long on average sun shines in April in Porto Santo Island?

In Porto Santo Island, Portugal, the average sunshine duration in April is 6h.

What is the UV index intensity in April in Porto Santo Island?

In April, the average daily maximum UV index in Porto Santo Island, Portugal, is 8. A UV Index reading of 8 to 10 represents a very high hazard to health from unsafe exposure to Sun's UV rays.

Average temperature in April
Porto Santo Island, Portugal

Average temperature in April - Porto Santo Island, Portugal
  • Average high temperature in April: 19.1°C

The warmest months (with the highest average high temperature) are August and September (25.1°C).
The month with the lowest average high temperature is January (18°C).

  • Average low temperature in April: 14.1°C

The months with the highest average low temperature are August and September (21.8°C).
The coldest month (with the lowest average low temperature) is February (13.4°C).

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Average humidity in April
Porto Santo Island, Portugal

Average humidity in April - Porto Santo Island, Portugal
  • Average humidity in April: 74%

The months with the highest relative humidity are January and February (78%).
The month with the lowest relative humidity is April (74%).

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Average rainfall in April
Porto Santo Island, Portugal

Average rainfall in April - Porto Santo Island, Portugal
  • Average rainfall in April: 21mm

The wettest month (with the highest rainfall) is January (67mm).
The driest month (with the least rainfall) is July (2mm).

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Average rainfall days in April
Porto Santo Island, Portugal

Average rainfall days in April - Porto Santo Island, Portugal
  • Average rainfall days in April: 7 days

The month with the highest number of rainy days is December (14 days).
The months with the least rainy days are July and August (3 days).

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Average sea temperature in April
Porto Santo Island, Portugal

Average sea temperature in April - Porto Santo Island, Portugal
  • Average sea temperature in April: 17.9°C

The best month for swimming (with the highest average sea temperature) is September (23.4°C).
The coldest month (with the lowest average sea temperature) is March (17.5°C).

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Average daylight in April /
Average sunshine in April
Porto Santo Island, Portugal

Average daylight in April / Average sunshine in April - Porto Santo Island, Portugal
  • Average daylight in April: 13h and 1min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 1min).

  • Average sunshine in April: 6h

The months with the most sunshine are July and August (Average sunshine: 8h).
The months with the least sunshine are January, February, November and December (Average sunshine: 5).

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Average UV index in April
Porto Santo Island, Portugal

Average UV index in April - Porto Santo Island, Portugal
  • Average UV index in April: 8

The months with the highest UV index are June and July (UV index 10).
The months with the lowest UV index are January and December (UV index 3).

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