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
South Alamo's average high-temperature in May is a still hot 91.8°F (33.2°C), indicating a subtle variation from April. May brings with it a nighttime average temperature of 72.9°F (22.7°C).Heat index
In May, the average heat index is calculated to be an extremely hot 111.2°F (44°C). Heed: Expect heat cramps and heat exhaustion. Continued action may cause heatstroke.Bear in mind that the heat index values are determined for shaded areas and light breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.
Humidity
The most humid month is May, with an average relative humidity of 69%.Rainfall
In South Alamo, in May, it is raining for 8 days, with typically 0.98" (25mm) of accumulated precipitation. Throughout the year, there are 94.1 rainfall days, and 9.06" (230mm) of precipitation is accumulated.Snowfall
In South Alamo, snow does not fall in February through December.Daylight
The average length of the day in May is 13h and 26min.On the first day of May, sunrise is at 6:54 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 8:20 pm CDT.
Sunshine
In South Alamo, the average sunshine in May is 10h.UV index
In South Alamo, the average daily maximum UV index in May is 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 7 in May interprets into the following advice:
Fend off overexposure. Sun protection is vital. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in South Alamo in May?
What is the most humid month in South Alamo?
What is the average humidity in May?
How much does it rain in May?
When it does not snow?
How many hours of daylight does South Alamo have in May?
What time are sunrise and sunset in May?
How long on average sun shines in May?
What is the UV index intensity in May?
Average temperature in May
South Alamo, TX
- Average high temperature in May: 91.8°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 May: 72.9°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 May
South Alamo, TX
- Average pressure in May: 29.87"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 May
South Alamo, TX
- Average wind speed in May: 12.4mph
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 May
South Alamo, TX
- Average humidity in May: 69%
The month with the highest relative humidity is May (69%).
The month with the lowest relative humidity is August (59%).
Average rainfall in May
South Alamo, TX
- Average rainfall in May: 0.98"
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 May
South Alamo, TX
- Average rainfall days in May: 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 May
South Alamo, TX
- Average snowfall in May: 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 May
South Alamo, TX
- Average snowfall days in May: 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 May /
Average sunshine in May
South Alamo, TX
- Average daylight in May: 13h and 2min
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 May: 10h and 0min
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 May
South Alamo, TX
- Average sunshine days in May: 20.5 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 May
South Alamo, TX
- Average UV index in May: 7
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 May
South Alamo, TX
- Average cloud cover in May: 32
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 May
South Alamo, 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).
South Alamo, Texas, USA
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