March weather forecastPort Arthur, TX

March
Weather in March
The first month of the spring, March, is an agreeable month in Port Arthur, Texas, with temperature in the range of an average high of 70°F (21.1°C) and an average low of 57.6°F (14.2°C).Temperature
A minor escalation in the average high-temperature is seen with the onset of March, moving from a comfortable 63.1°F (17.3°C) in February to a pleasant 70°F (21.1°C). Port Arthur's nighttime temperature during March is consistently averaged at a refreshing 57.6°F (14.2°C).Humidity
In March, the average relative humidity in Port Arthur is 78%.Rainfall
In Port Arthur, during March, the rain falls for 9.6 days and regularly aggregates up to 0.47" (12mm) of precipitation. Throughout the year, there are 132.6 rainfall days, and 12.09" (307mm) of precipitation is accumulated.Snowfall
January through November are months without snowfall in Port Arthur.Daylight
In March, the average length of the day in Port Arthur is 12h and 1min.On the first day of March in Port Arthur, sunrise is at 6:40 am and sunset at 6:15 pm CST. On the last day of the month, sunrise is at 7:05 am and sunset at 7:34 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
In Port Arthur, Texas, the average sunshine in March is 7.1h.UV index
In Port Arthur, the average daily maximum UV index in March is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 5 during March translates into the following guidance:
Heed the precautions - It is counselled to guard against solar damage. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Port Arthur, TX
- Average high temperature in March: 70°F
The warmest month (with the highest average high temperature) is August (91°F).
The month with the lowest average high temperature is January (59.5°F).
- Average low temperature in March: 57.6°F
The month with the highest average low temperature is July (78.4°F).
The coldest month (with the lowest average low temperature) is January (46.9°F).
Average pressure in March
Port Arthur, TX
- Average pressure in March: 30.06"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in March
Port Arthur, TX
- Average wind speed in March: 9.3mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in March
Port Arthur, TX
- Average humidity in March: 78%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in March
Port Arthur, TX
- Average rainfall in March: 0.47"
The wettest month (with the highest rainfall) is August (2.09").
The driest month (with the least rainfall) is April (0.43").
Average rainfall days in March
Port Arthur, TX
- Average rainfall days in March: 9.6 days
The month with the highest number of rainy days is August (17.9 days).
The months with the least rainy days are January and November (7.8 days).
Average snowfall in March
Port Arthur, TX
- Average snowfall in March: 0"
The month with the highest snowfall is December (0.04").
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in March
Port Arthur, TX
- Average snowfall days in March: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in March /
Average sunshine in March
Port Arthur, TX
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in March: 7h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in March
Port Arthur, TX
- Average sunshine days in March: 19.9 days
The month with the most sunshine days is January (21.3 days).
The month with the least sunshine days is August (8.8 days).
Average UV index in March
Port Arthur, TX
- Average UV index in March: 5
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in March
Port Arthur, TX
- Average cloud cover in March: 43
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 26).
Average visibility in March
Port Arthur, 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).





