March weather forecast
Guayanilla, PR

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Weather in March

March in Guayanilla retains the city's warm clime, characterizing a trademark blend of consistent temperatures and humidity. Transitioning from February, the UV index in March maintains a level of 6, indicating a moderate risk of harm from unprotected sun exposure. The month's average rainfall increases from the 0.83" (21mm) in February to 1.46" (37mm). Nature's dirge comes alive in March, where the gentlest pitter patter of raindrops punctuates the serene tropical milieu. With longer evenings and mild weather conditions, it's an excellent time for a leisurely saunter along the city's renowned beaches.

Temperature

Guayanilla starts March with an average high-temperature of a still moderately hot 82.4°F (28°C), a minor shift from February's 82°F (27.8°C). During the month of March, Guayanilla anticipates a mean low-temperature of 71.4°F (21.9°C).

Heat index

March's heat index is computed to be a hot 87.8°F (31°C). Persisting in activity during exposure could lead to weariness and subsequently to heat cramps.
Heat index determinations are made taking into account the shade and light air movements. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', takes into account both air temperature and humidity to illustrate what people actually feel. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.

Humidity

With an average relative humidity of 75%, March is the least humid month in Guayanilla.

Rainfall

In Guayanilla, during March, the rain falls for 18.4 days and regularly aggregates up to 1.46" (37mm) of precipitation. In Guayanilla, during the entire year, the rain falls for 224.9 days and collects up to 23.58" (599mm) of precipitation.

Snowfall

In Guayanilla, Puerto Rico, snow does not fall in January through August, October through December.

Daylight

The average length of the day in March in Guayanilla is 12h and 3min.
On the first day of the month, sunrise is at 6:45 am and sunset at 6:33 pm. On the last day of March, sunrise is at 6:21 am and sunset at 6:40 pm AST.

Sunshine

The average sunshine in March is 8.7h.

UV index

January through March, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: In March, the average maximum UV index of 6 translates into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is March in Guayanilla?

An average high-temperature, in March, in Guayanilla, is 82.4°F (28°C) and the average low-temperature is 71.4°F (21.9°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in March is computed to be 87.8°F (31°C).

What is the least humid month in Guayanilla?

With an average relative humidity of 75%, March is the least humid month.

What is the average humidity in March in Guayanilla?

The average relative humidity in March in Guayanilla is 75%.

How many days does it rain in March in Guayanilla?

In Guayanilla, Puerto Rico, in March, it is raining for 18.4 days, with typically 1.46" (37mm) of accumulated precipitation.

When it does not snow in Guayanilla?

January through August, October through December are months without snowfall.

How many hours of daylight does Guayanilla have in March?

In Guayanilla, the average day length in March is 12h and 3min.

When are sunrise and sunset in March in Guayanilla?

In March, on the first day of the month, sunrise is at 6:45 am and sunset at 6:33 pm. On the last day of the month, in Guayanilla, sunrise is at 6:21 am and sunset at 6:40 pm AST.

How many hours of sunshine does Guayanilla have in March?

In March, the average sunshine duration in Guayanilla, Puerto Rico, is 8.7h.

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

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 6.

What is the UV index reading in March in Guayanilla?

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

Average temperature in March
Guayanilla, PR

Average temperature in March - Guayanilla, PR
  • Average high temperature in March: 82.4°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 March: 71.4°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 March
Guayanilla, PR

Average pressure in March - Guayanilla, PR
  • Average pressure in March: 30"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 March
Guayanilla, PR

Average wind speed in March - Guayanilla, PR
  • Average wind speed in March: 6.8mph

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 March
Guayanilla, PR

Average humidity in March - Guayanilla, PR
  • Average humidity in March: 75%

The month with the highest relative humidity is November (80%).
The month with the lowest relative humidity is March (75%).

Average rainfall in March
Guayanilla, PR

Average rainfall in March - Guayanilla, PR
  • Average rainfall in March: 1.46"

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 March
Guayanilla, PR

Average rainfall days in March - Guayanilla, PR
  • Average rainfall days in March: 18.4 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 March
Guayanilla, PR

Average snowfall days in March - Guayanilla, PR
  • Average snowfall days in March: 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 March /
Average sunshine in March
Guayanilla, PR

Average daylight in March / Average sunshine in March - Guayanilla, PR
  • Average daylight in March: 12h and 1min

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 March: 8h and 4min

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 March
Guayanilla, PR

Average sunshine days in March - Guayanilla, PR
  • Average sunshine days in March: 9.2 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 March
Guayanilla, PR

Average UV index in March - Guayanilla, PR
  • Average UV index in March: 6

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 March
Guayanilla, PR

Average cloud cover in March - Guayanilla, PR
  • Average cloud cover in March: 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 March
Guayanilla, PR

Average visibility in March - Guayanilla, PR
  • Average visibility in March: 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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