Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
The arrival of April records an average high-temperature of a still moderately hot 83.7°F (28.7°C), closely related to the 82.4°F (28°C) observed in March. Guayanilla, in April, experiences an average temperature of 73.2°F (22.9°C) at night.Heat index
The heat index value during April is computed to be a tropical 91.4°F (33°C). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.Consider that heat index readings are for situations in the shade and light wind. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Humidity
In April, the average relative humidity in Guayanilla is 76%.Rainfall
In Guayanilla, in April, it is raining for 19.3 days, with typically 1.34" (34mm) of accumulated precipitation. Throughout the year, there are 224.9 rainfall days, and 23.58" (599mm) of precipitation is accumulated.Snowfall
In Guayanilla, Puerto Rico, snow does not fall in January through August, October through December.Daylight
In Guayanilla, the average length of the day in April is 12h and 34min.On the first day of the month, sunrise is at 6:20 am and sunset at 6:40 pm. On the last day of April, sunrise is at 6:00 am and sunset at 6:48 pm AST.
Sunshine
The average sunshine in April in Guayanilla is 9h.UV index
The months with the highest UV index are April through October, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A typical high UV index of 7 in April suggests the following recommendations:
Shun overexposure. Protection from sun ravages is indispensable. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Guayanilla during April?
What is the average humidity in April in Guayanilla?
How much does it rain in Guayanilla in April?
When it does not snow in Guayanilla?
What is the average length of the day in April in Guayanilla?
When is the sunrise / sunset in April in Guayanilla?
How long on average sun shines in April in Guayanilla?
What are the months with the highest UV index in Guayanilla?
What is the UV index intensity in April in Guayanilla?
Average temperature in April
Guayanilla, PR
- Average high temperature in April: 83.7°F
The warmest month (with the highest average high temperature) is August (86.5°F).
The month with the lowest average high temperature is January (81.9°F).
- Average low temperature in April: 73.2°F
The months with the highest average low temperature are July, August and October (76.6°F).
The coldest month (with the lowest average low temperature) is March (71.4°F).
Average pressure in April
Guayanilla, 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 (29.89"Hg).
Average wind speed in April
Guayanilla, PR
- Average wind speed in April: 7mph
The windiest month (with the highest average wind speed) is July (8mph).
The calmest month (with the lowest average wind speed) is November (5.6mph).
Average humidity in April
Guayanilla, PR
- Average humidity in April: 76%
The month with the highest relative humidity is November (80%).
The month with the lowest relative humidity is March (75%).
Average rainfall in April
Guayanilla, PR
- Average rainfall in April: 1.34"
The wettest month (with the highest rainfall) is September (3.58").
The driest month (with the least rainfall) is January (0.71").
Average rainfall days in April
Guayanilla, PR
- Average rainfall days in April: 19.3 days
The month with the highest number of rainy days is November (22.5 days).
The month with the least rainy days is February (14.8 days).
Average snowfall days in April
Guayanilla, PR
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).
Average daylight in April /
Average sunshine in April
Guayanilla, PR
- Average daylight in April: 12h and 4min
The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 6min).
- Average sunshine in April: 9h and 0min
The month with the most sunshine is June (Average sunshine: 11h and 18min).
The month with the least sunshine is November (Average sunshine: 7h and 6min).
Average sunshine days in April
Guayanilla, PR
- Average sunshine days in April: 7.6 days
The month with the most sunshine days is June (12.2 days).
The month with the least sunshine days is November (5.1 days).
Average UV index in April
Guayanilla, PR
- Average UV index in April: 7
The months with the highest UV index are April, May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 6).
Average cloud cover in April
Guayanilla, PR
- Average cloud cover in April: 26
The month with the most cloud cover is May (Cloud cover 30).
The months with the least cloud cover are January and February (Cloud cover 22).
Average visibility in April
Guayanilla, 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).
Guayanilla, Puerto Rico, USA
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