March weather forecast
Port Arthur, TX

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The inlet of the ship channel on Port Arthur, Texas
The inlet of the ship channel on Port Arthur, Texas

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.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are March temperatures in Port Arthur?

In March, the average high-temperature and low-temperature are 70°F (21.1°C) and 57.6°F (14.2°C) respectively.

What is the average humidity in March in Port Arthur?

In Port Arthur, Texas, the average relative humidity in March is 78%.

How much does it rain in Port Arthur in March?

In Port Arthur, in March, during 9.6 rainfall days, 0.47" (12mm) of precipitation is typically accumulated.

When it does not snow in Port Arthur?

In Port Arthur, Texas, snow does not fall in January through November.

How many hours of daylight does Port Arthur have in March?

In March, the average day length in Port Arthur is 12h and 1min.

When are sunrise and sunset in March in Port Arthur?

In March, on the first day of the month, sunrise is at 6:40 am and sunset at 6:15 pm CST. On the last day of the month, in Port Arthur, sunrise is at 7:05 am and sunset at 7:34 pm CDT.

When does Daylight Saving Time (DST) start in March in Port Arthur?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Port Arthur, and the time zone changes from CST to CDT. DST ends Sunday, November 3. 2024, at 2:00 am.

How many hours of sunshine does Port Arthur have in March?

In Port Arthur, Texas, the average sunshine duration in March is 7.1h.

What is the UV index reading in March in Port Arthur?

In March, the average daily maximum UV index in Port Arthur is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in March
Port Arthur, TX

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / 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 1min

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 - 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 - 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 - 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 - 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).

Port Arthur, Texas, USA

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