May weather forecastSan Leon, TX
May
Weather in May
May, the last month of the spring in San Leon, is also a moderately hot month, with an average temperature ranging between max 81.3°F (27.4°C) and min 72.5°F (22.5°C).Temperature
A slight uplift of average high-temperatures is noted in May, with temperatures adjusting from a moderately hot 74.8°F (23.8°C) in April to a still warm 81.3°F (27.4°C). San Leon's May nights observe a minor shift from the daytime temperatures, resulting in an average dip to an agreeable 72.5°F (22.5°C).Heat index
May's average heat index is calculated to be a tropical 86°F (30°C). Ongoing exposure and activity could lead to a state of exhaustion, with a chance of heat cramps.For clarity, heat index numbers account for light winds and areas under shade. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', determines the feeling of heat when you account for the relative humidity. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
Humidity
In San Leon, the average relative humidity in May is 77%.Rainfall
In San Leon, in May, it is raining for 13.7 days, with typically 4.33" (110mm) of accumulated precipitation. Throughout the year, there are 188.2 rainfall days, and 44.13" (1121mm) of precipitation is accumulated.Snowfall
In San Leon, snow does not fall in February through December.Ocean temperature
In San Leon, the average seawater temperature in May is 77.5°F (25.3°C).Note: Water temperatures between 77°F (25°C) and 84.2°F (29°C) are regarded as very warm, ensuring all water activities are pleasurable for extended periods without feeling uneasy.
Daylight
The average length of the day in May is 13h and 38min.On the first day of May, sunrise is at 6:36 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 8:14 pm CDT.
Sunshine
In San Leon, Texas, the average sunshine in May is 10h.UV index
May through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum daily UV index of 7 during May morphs into the following directions:
Inhibit overexposure. Warding off sun damage is of utmost importance. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Opt for tightly woven and loose clothing to enhance protection from the Sun. Attention! The combination of sand and water reflections enhances UV ray intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
San Leon, TX
- Average high temperature in May: 81.3°F
The warmest month (with the highest average high temperature) is August (89.2°F).
The month with the lowest average high temperature is January (59.5°F).
- Average low temperature in May: 72.5°F
The months with the highest average low temperature are July and August (80.2°F).
The coldest month (with the lowest average low temperature) is January (49.5°F).
Average pressure in May
San Leon, 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
San Leon, TX
- Average wind speed in May: 10.7mph
The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest months (with the lowest average wind speed) are August and September (8.3mph).
Average humidity in May
San Leon, TX
- Average humidity in May: 77%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (72%).
Average rainfall in May
San Leon, TX
- Average rainfall in May: 4.33"
The wettest month (with the highest rainfall) is September (6.77").
The driest month (with the least rainfall) is March (1.81").
Average rainfall days in May
San Leon, TX
- Average rainfall days in May: 13.7 days
The month with the highest number of rainy days is August (22.1 days).
The month with the least rainy days is November (11.6 days).
Average snowfall in May
San Leon, TX
- Average snowfall in May: 0"
The month with the highest snowfall is January (0.04").
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
San Leon, 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, November and December (0 days).
Average sea temperature in May
San Leon, TX
- Average sea temperature in May: 77.5°F
The best month for swimming (with the highest average sea temperature) is August (87.2°F).
The coldest month (with the lowest average sea temperature) is January (56.5°F).
Average daylight in May /
Average sunshine in May
San Leon, TX
- Average daylight in May: 13h and 36min
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 0min
The months with the most sunshine are July and August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in May
San Leon, TX
- Average sunshine days in May: 13.9 days
The month with the most sunshine days is January (16.3 days).
The month with the least sunshine days is August (6.3 days).
Average UV index in May
San Leon, 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
San Leon, TX
- Average cloud cover in May: 33
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in May
San Leon, 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).
