March weather forecastArroyo, PR
March
Weather in March
March is characterized by a slight upward tick in both temperature and rainfall at 1.42" (36mm), as Arroyo transitions into the more humid part of the year. Most days are sunlit, but the city may witness occasional overcast skies. Notably, this month experiences a remarkable increase in daylight hours compared to previous months. Therefore, it provides an extended timeframe for locals and tourists to experience the charms of Arroyo. The steady wind during March also contributes to well-balanced weather conditions.Temperature
The shift into March reveals an average high-temperature of a still warm 81°F (27.2°C), closely mirroring February's climate. An average temperature of 71.6°F (22°C) is recorded during the nights in March.Heat index
March's average heat index is evaluated at a tropical 86°F (30°C). Long-lasting exposure and activity potentially induce a sense of weariness, with the risk of heat cramps.In reference to the heat index, it's for places in shade and with a slight 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 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
Humidity
The least humid month is March, with an average relative humidity of 77%.Rainfall
In Arroyo, in March, during 19.3 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. Throughout the year, there are 255.3 rainfall days, and 29.41" (747mm) of precipitation is accumulated.Ocean temperature
February and March, with an average ocean temperature of 79.3°F (26.3°C), are months with the coldest seawater in Arroyo.Note: For swimming, diving, or other water activities, temperatures from 77°F (25°C) to 84.2°F (29°C) provide the most enjoyable experience for extended periods without discomfort.
Daylight
In Arroyo, the average length of the day in March is 12h and 3min.On the first day of March, sunrise is at 6:42 am and sunset at 6:30 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 6:37 pm AST.
Sunshine
The average sunshine in March in Arroyo is 8.6h.UV index
The months with the lowest UV index 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 health vulnerability from unsafe exposure to UV radiation for the average person.Note: In March, the average maximum UV index of 6 translates into the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Take heed! Reflections of sand and water make the Sun's UV rays stronger.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Arroyo, PR
- Average high temperature in March: 81°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 March: 71.6°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).
Average pressure in March
Arroyo, 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 (29.9"Hg).
Average wind speed in March
Arroyo, PR
- Average wind speed in March: 7.5mph
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).
Average humidity in March
Arroyo, PR
- Average humidity in March: 77%
The month with the highest relative humidity is November (82%).
The month with the lowest relative humidity is March (77%).
Average rainfall in March
Arroyo, PR
- Average rainfall in March: 1.42"
The wettest month (with the highest rainfall) is September (4.29").
The driest month (with the least rainfall) is February (1.02").
Average rainfall days in March
Arroyo, PR
- Average rainfall days in March: 19.3 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).
Average sea temperature in March
Arroyo, PR
- Average sea temperature in March: 79.3°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).
Average daylight in March /
Average sunshine in March
Arroyo, PR
- Average daylight in March: 12h and 6min
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 36min
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).
Average sunshine days in March
Arroyo, PR
- Average sunshine days in March: 7.5 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).
Average UV index in March
Arroyo, PR
- Average UV index in March: 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).
Average cloud cover in March
Arroyo, PR
- Average cloud cover in March: 33
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).
Average visibility in March
Arroyo, 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).
