May weather forecastPort Arthur, TX
May
Weather in May
The last month of the spring, May, is another warm month in Port Arthur, Texas, with an average temperature fluctuating between 83.3°F (28.5°C) and 71.1°F (21.7°C).Temperature
Port Arthur, Texas, in May observes a minor temperature shift, with average high-temperatures adjusting from 76.5°F (24.7°C) in April to a still moderately hot 83.3°F (28.5°C). An average minimum temperature of 71.1°F (21.7°C) marks the month of May.Heat index
During May, the heat index is calculated to be a hot 89.6°F (32°C). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.Evaluating the heat index requires understanding its values in the shade and with gentle winds. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', offers an insight into how hot it feels when we factor in moisture content. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Humidity
In May, the average relative humidity in Port Arthur, Texas, is 75%.Rainfall
In Port Arthur, Texas, in May, during 8.3 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. Throughout the year, in Port Arthur, there are 132.6 rainfall days, and 12.09" (307mm) of precipitation is accumulated.Snowfall
January through November are months without snowfall.Daylight
In Port Arthur, the average length of the day in May is 13h and 40min.On the first day of May in Port Arthur, sunrise is at 6:32 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 8:11 pm CDT.
Sunshine
In May, the average sunshine in Port Arthur is 10.3h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.Note: The UV index of 7 during May leads to these advisories:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Port Arthur, TX
- Average high temperature in May: 83.3°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 May: 71.1°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 May
Port Arthur, TX
- Average pressure in May: 29.95"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 May
Port Arthur, TX
- Average wind speed in May: 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 May
Port Arthur, TX
- Average humidity in May: 75%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Port Arthur, TX
- Average rainfall in May: 1.06"
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 May
Port Arthur, TX
- Average rainfall days in May: 8.3 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 May
Port Arthur, TX
- Average snowfall in May: 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 May
Port Arthur, TX
- Average snowfall days in May: 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 May /
Average sunshine in May
Port Arthur, TX
- Average daylight in May: 13h and 42min
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 May: 10h and 18min
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 May
Port Arthur, TX
- Average sunshine days in May: 20.8 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 May
Port Arthur, TX
- Average UV index in May: 7
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 May
Port Arthur, TX
- Average cloud cover in May: 30
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 May
Port Arthur, TX
- Average visibility in May: 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).
