Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May's arrival coincides with a subtle temperature rise, moving from April's 76.1°F (24.5°C) to a still warm 82.9°F (28.3°C). During May, High Island consistently records a temperature low averaging a pleasant 70.5°F (21.4°C).Heat index
Throughout May, the heat index is evaluated at a tropical 91.4°F (33°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.Realize that the values for the heat index are set for shaded places and light winds. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Humidity
In High Island, the average relative humidity in May is 78%.Rainfall
In High Island, during May, the rain falls for 9.4 days and regularly aggregates up to 1.69" (43mm) of precipitation. In High Island, Texas, during the entire year, the rain falls for 132.4 days and collects up to 13.78" (350mm) of precipitation.Snowfall
In High Island, snow does not fall in January through November.Daylight
In May, the average length of the day is 13h and 39min.On the first day of May, sunrise is at 6:34 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 8:12 pm CDT.
Sunshine
In May, the average sunshine is 10.2h.UV index
May through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: An average UV index of 7 in May transforms into this advice:
Shun overexposure. Protection from sun ravages is indispensable. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during May?
What is the average humidity in May?
How much does it rain in High Island in May?
When it does not snow?
What is the average length of the day in May?
When are sunrise and sunset in May?
How long on average sun shines in May?
What is the month with the highest UV index?
How high is the UV index in May?
Average temperature in May
High Island, TX
- Average high temperature in May: 82.9°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: 70.5°F
The month with the highest average low temperature is July (77.9°F).
The coldest month (with the lowest average low temperature) is January (46.9°F).
Average pressure in May
High Island, 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
High Island, TX
- Average wind speed in May: 8.8mph
The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest months (with the lowest average wind speed) are August and September (6.6mph).
Average humidity in May
High Island, TX
- Average humidity in May: 78%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (73%).
Average rainfall in May
High Island, TX
- Average rainfall in May: 1.69"
The wettest month (with the highest rainfall) is September (2.01").
The driest months (with the least rainfall) are February and March (0.43").
Average rainfall days in May
High Island, TX
- Average rainfall days in May: 9.4 days
The month with the highest number of rainy days is September (17.6 days).
The month with the least rainy days is February (6.5 days).
Average snowfall in May
High Island, 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
High Island, TX
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, October and November (0 days).
Average daylight in May /
Average sunshine in May
High Island, TX
- Average daylight in May: 13h and 4min
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 1min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in May
High Island, TX
- Average sunshine days in May: 19.3 days
The month with the most sunshine days is January (21.3 days).
The month with the least sunshine days is August (9.3 days).
Average UV index in May
High Island, 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
High Island, TX
- Average cloud cover in May: 32
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in May
High Island, 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).
High Island, Texas, USA
Weather forecast for your location
2. Allow the app to use your location