March weather forecastSan Juan, TX
March
Weather in March
The first month of the spring, March, is still a warm month in San Juan, Texas, with an average temperature varying between 82°F (27.8°C) and 63.1°F (17.3°C).Temperature
San Juan's March weather indicates a minor increase in high-temperatures, edging from February's 75.4°F (24.1°C) to a still moderately hot 82°F (27.8°C). Throughout March, San Juan witnesses a nighttime temperature average of 63.1°F (17.3°C).Heat index
During March, the heat index is appraised at a tropical 86°F (30°C). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Humidity
In March, the average relative humidity in San Juan is 65%.Rainfall
In San Juan, in March, it is raining for 6.8 days, with typically 0.39" (10mm) of accumulated precipitation. Throughout the year, there are 94.1 rainfall days, and 9.06" (230mm) of precipitation is accumulated.Snowfall
In San Juan, snow does not fall in February through December.Daylight
The average length of the day in March is 12h and 2min.On the first day of March, sunrise is at 6:55 am and sunset at 6:34 pm CST. On the last day of the month, sunrise is at 7:23 am and sunset at 7:49 pm CDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from CDT to CST.
Sunshine
The average sunshine in March is 7.8h.UV index
The average daily maximum UV index in March is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.Note: A maximum UV index of 6 in March translates into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
San Juan, TX
- Average high temperature in March: 82°F
The warmest month (with the highest average high temperature) is August (98.2°F).
The month with the lowest average high temperature is January (69.6°F).
- Average low temperature in March: 63.1°F
The month with the highest average low temperature is August (79.7°F).
The coldest month (with the lowest average low temperature) is January (53.4°F).
Average pressure in March
San Juan, TX
- Average pressure in March: 29.99"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are May and June (29.87"Hg).
Average wind speed in March
San Juan, TX
- Average wind speed in March: 11.9mph
The windiest month (with the highest average wind speed) is May (12.4mph).
The calmest month (with the lowest average wind speed) is September (8.9mph).
Average humidity in March
San Juan, TX
- Average humidity in March: 65%
The month with the highest relative humidity is May (69%).
The month with the lowest relative humidity is August (59%).
Average rainfall in March
San Juan, TX
- Average rainfall in March: 0.39"
The wettest month (with the highest rainfall) is September (1.46").
The driest months (with the least rainfall) are January and February (0.31").
Average rainfall days in March
San Juan, TX
- Average rainfall days in March: 6.8 days
The month with the highest number of rainy days is September (15.1 days).
The month with the least rainy days is February (5.4 days).
Average snowfall in March
San Juan, TX
- Average snowfall in March: 0"
The month with the highest snowfall is January (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in March
San Juan, TX
- Average snowfall days in March: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in March /
Average sunshine in March
San Juan, TX
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in March: 7h and 48min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in March
San Juan, TX
- Average sunshine days in March: 22.5 days
The month with the most sunshine days is July (23 days).
The month with the least sunshine days is September (12.5 days).
Average UV index in March
San Juan, TX
- Average UV index in March: 6
The months with the highest UV index are July and August (UV index 8).
The month with the lowest UV index is December (UV index 4).
Average cloud cover in March
San Juan, TX
- Average cloud cover in March: 35
The month with the most cloud cover is December (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in March
San Juan, TX
- 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).
