Contents
- Weather in March
- Frequently asked questions
- Average temperature in March
- Average pressure in March
- Average wind speed in March
- Average humidity in March
- Average rainfall in March
- Average rainfall days in March
- Average sea temperature in March
- Average daylight in March
- Average sunshine in March
- Average sunshine days in March
- Average UV index in March
- Average cloud cover in March
- Average visibility in March
Weather in March
Temperature
San Juan's coldest months, January and March, record an average high-temperature of 79.9°F (26.6°C).Humidity
February and March, with an average relative humidity of 76%, are the least humid months.Rainfall
In San Juan, in March, during 12.8 rainfall days, 0.87" (22mm) of precipitation is typically accumulated. In San Juan, during the entire year, the rain falls for 159.9 days and collects up to 12.01" (305mm) of precipitation.Ocean temperature
The months with the coldest seawater are February and March, with an average ocean temperature of 79°F (26.1°C).Note: Water temperature ranging between 77°F (25°C) and 84.2°F (29°C) is considered very warm and pleasing for everyone. It allows for enjoyable water activities over extended periods without discomfort.
Daylight
In March, the average length of the day is 12h and 3min.On the first day of the month, sunrise is at 6:42 am and sunset at 6:30 pm. On the last day of March, sunrise is at 6:18 am and sunset at 6:38 pm AST.
Sunshine
In March, the average sunshine is 8.6h.UV index
January through March 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 risk from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high daily UV index of 6 during March translates into the following directions:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Warning! Reflective surfaces like sand and water amplify the Sun's UV radiation.
Frequently asked questions
What part of the year is the coldest?
What is the usual temperature for San Juan in March?
What are the least humid months?
What is the average humidity in March?
How much does it rain in March?
What are the months with the coldest ocean?
What is the ocean temperature in March?
How many hours of daylight does San Juan have in March?
What time are sunrise and sunset in March?
How long on average sun shines in March?
What is the month with the lowest UV index?
What is the UV index reading in March?
Average temperature in March
San Juan, PR
- Average high temperature in March: 79.9°F
The warmest month (with the highest average high temperature) is August (85.1°F).
The months with the lowest average high temperature are January and March (79.9°F).
- Average low temperature in March: 73.9°F
The months with the highest average low temperature are August, September and October (79.2°F).
The coldest month (with the lowest average low temperature) is March (73.9°F).
Average pressure in March
San Juan, PR
- Average pressure in March: 30.01"Hg
The months with the highest atmospheric pressure are January and February (30.02"Hg).
The month with the lowest atmospheric pressure is October (29.9"Hg).
Average wind speed in March
San Juan, PR
- Average wind speed in March: 9.6mph
The windiest month (with the highest average wind speed) is July (10.7mph).
The calmest month (with the lowest average wind speed) is October (7.4mph).
Average humidity in March
San Juan, PR
- Average humidity in March: 76%
The months with the highest relative humidity are May, June and July (79%).
The months with the lowest relative humidity are February and March (76%).
Average rainfall in March
San Juan, PR
- Average rainfall in March: 0.87"
The wettest month (with the highest rainfall) is November (1.57").
The driest month (with the least rainfall) is April (0.55").
Average rainfall days in March
San Juan, PR
- Average rainfall days in March: 12.8 days
The month with the highest number of rainy days is November (16.1 days).
The month with the least rainy days is June (10.3 days).
Average sea temperature in March
San Juan, PR
- Average sea temperature in March: 79.1°F
The best month for swimming (with the highest average sea temperature) is September (84.9°F).
The coldest month (with the lowest average sea temperature) is February (78.9°F).
Average daylight in March /
Average sunshine in March
San Juan, 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 0min).
- Average sunshine in March: 8h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in March
San Juan, PR
- Average sunshine days in March: 11.9 days
The month with the most sunshine days is June (13.7 days).
The month with the least sunshine days is November (9.4 days).
Average UV index in March
San Juan, PR
- Average UV index in March: 6
The months with the highest UV index are April, May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March and December (UV index 6).
Average cloud cover in March
San Juan, PR
- Average cloud cover in March: 31
The month with the most cloud cover is December (Cloud cover 35).
The month with the least cloud cover is September (Cloud cover 26).
Average visibility in March
San Juan, 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).
San Juan, Puerto Rico, USA
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