April weather forecast
Arroyo, PR

Weather in April

April, like March, in Arroyo, Puerto Rico, is another warm spring month, with an average temperature ranging between max 81.9°F (27.7°C) and min 73°F (22.8°C).

Temperature

In Arroyo, Puerto Rico, the average high-temperature in April is relatively the same as in March - a still warm 81.9°F (27.7°C). In April, in Arroyo, Puerto Rico, the average low-temperature is 73°F (22.8°C).

Heat index

In April, the average heat index is evaluated at a hot 88°F (31.1°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'felt air temperature', 'apparent temperature', or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is individual, with diverse people perceiving weather differently for numerous reasons (metabolic differences, clothing, pregnancy), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In Arroyo, the average relative humidity in April is 78%.

Rainfall

In April, in Arroyo, the rain falls for 21.2 days. Throughout April, 1.93" (49mm) of precipitation is accumulated. In Arroyo, during the entire year, the rain falls for 255.3 days and collects up to 29.41" (747mm) of precipitation.

Ocean temperature

In Arroyo, in April, the average water temperature is 81°F (27.2°C).
Note: For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

In April, the average length of the day is 12h and 34min.
On the first day of April, sunrise is at 6:18 am and sunset at 6:37 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 6:44 pm AST.

Sunshine

The average sunshine in April is 8.7h.

UV index

The months with the lowest UV index in Arroyo are January through April, November and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In April, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in April in Arroyo?

In April, in Arroyo, Puerto Rico, the average high-temperature is 81.9°F (27.7°C), and the average low-temperature is 73°F (22.8°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in April is evaluated at 88°F (31.1°C).

What is the average humidity in April in Arroyo?

The average relative humidity in April is 78%.

How much does it rain in Arroyo in April?

In Arroyo, during April, the rain falls for 21.2 days and regularly aggregates up to 1.93" (49mm) of precipitation.

What is the ocean temperature in April in Arroyo?

In Arroyo, in April, the average water temperature is 81°F (27.2°C). For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

What is the average length of the day in April in Arroyo?

The average day length in April in Arroyo is 12h and 34min.

When are sunrise and sunset in April in Arroyo?

On the first day of April in Arroyo, sunrise is at 6:18 am and sunset at 6:37 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 6:44 pm AST.

How many hours of sunshine does Arroyo have in April?

In April, the average sunshine duration is 8.7h.

What is the month with the lowest UV index in Arroyo?

The months with the lowest UV index in Arroyo, Puerto Rico, are January through April, November and December, with an average maximum UV index of 6.

How high is the UV index in April in Arroyo?

In Arroyo, the average daily maximum UV index in April is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Arroyo, PR

Average temperature in April - Arroyo, PR
  • Average high temperature in April: 81.9°F

The warmest month (with the highest average high temperature) is August (85.3°F).
The month with the lowest average high temperature is January (79.9°F).

  • Average low temperature in April: 73°F

The months with the highest average low temperature are July and August (76.6°F).
The coldest month (with the lowest average low temperature) is January (71.4°F).

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Average pressure in April
Arroyo, PR

Average pressure in April - Arroyo, PR
  • Average pressure in April: 29.98"Hg

The months with the highest atmospheric pressure are January and February (30.01"Hg).
The month with the lowest atmospheric pressure is October (29.9"Hg).

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Average wind speed in April
Arroyo, PR

Average wind speed in April - Arroyo, PR
  • Average wind speed in April: 7.4mph

The windiest month (with the highest average wind speed) is July (8.6mph).
The calmest month (with the lowest average wind speed) is October (6mph).

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Average humidity in April
Arroyo, PR

Average humidity in April - Arroyo, PR
  • Average humidity in April: 78%

The month with the highest relative humidity is November (82%).
The month with the lowest relative humidity is March (77%).

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Average rainfall in April
Arroyo, PR

Average rainfall in April - Arroyo, PR
  • Average rainfall in April: 1.93"

The wettest month (with the highest rainfall) is September (4.29").
The driest month (with the least rainfall) is February (1.02").

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Average rainfall days in April
Arroyo, PR

Average rainfall days in April - Arroyo, PR
  • Average rainfall days in April: 21.2 days

The months with the highest number of rainy days are May and October (25.3 days).
The month with the least rainy days is February (15.4 days).

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Average sea temperature in April
Arroyo, PR

Average sea temperature in April - Arroyo, PR
  • Average sea temperature in April: 81°F

The best month for swimming (with the highest average sea temperature) is September (85.4°F).
The coldest months (with the lowest average sea temperature) are February and March (79.3°F).

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Average daylight in April /
Average sunshine in April
Arroyo, PR

Average daylight in April / Average sunshine in April - Arroyo, PR
  • Average daylight in April: 12h and 34min

The month with the longest days is June (Average daylight: 13h and 11min).
The month with the shortest days is December (Average daylight: 11h and 4min).

  • Average sunshine in April: 8h and 42min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

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Average sunshine days in April
Arroyo, PR

Average sunshine days in April - Arroyo, PR
  • Average sunshine days in April: 5.7 days

The month with the most sunshine days is January (8.8 days).
The month with the least sunshine days is May (2.7 days).

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Average UV index in April
Arroyo, PR

Average UV index in April - Arroyo, PR
  • Average UV index in April: 6

The months with the highest UV index are May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, November and December (UV index 6).

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Average cloud cover in April
Arroyo, PR

Average cloud cover in April - Arroyo, PR
  • Average cloud cover in April: 35

The months with the most cloud cover are May and July (Cloud cover 40).
The month with the least cloud cover is February (Cloud cover 31).

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Average visibility in April
Arroyo, PR

Average visibility in April - Arroyo, PR
  • Average visibility in April: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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