May weather forecast
Sugar Land, TX

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Weather in May

May, the last month of the spring in Sugar Land, is also a moderately hot month, with an average temperature fluctuating between 85.5°F (29.7°C) and 68.5°F (20.3°C).

Temperature

Sugar Land's transition into May is marked by a minor temperature shift, moving from 78.6°F (25.9°C) in April to a still moderately hot 85.5°F (29.7°C). In May, Sugar Land reports a consistent average low-temperature of 68.5°F (20.3°C) during the nights.

Heat index

The heat index value for May is evaluated at a fiery hot 96.8°F (36°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In May, the average relative humidity is 76%.

Rainfall

In Sugar Land, in May, it is raining for 14.4 days, with typically 4.33" (110mm) of accumulated precipitation. In Sugar Land, during the entire year, the rain falls for 178.7 days and collects up to 35.35" (898mm) of precipitation.

Snowfall

March through November are months without snowfall.

Daylight

The average length of the day in May is 13h and 39min.
On the first day of May, sunrise is at 6:39 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 8:17 pm CDT.

Sunshine

In Sugar Land, the average sunshine in May is 9h.

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 unsafe exposure to UV radiation for the average person.
Note: The maximum UV index of 7 during May leads to these instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Updated: Jul 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during May?

In May, the average high-temperature and low-temperature are 85.5°F (29.7°C) and 68.5°F (20.3°C) respectively. In May, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is evaluated at 96.8°F (36°C).

What is the average humidity in May?

In Sugar Land, the average relative humidity in May is 76%.

How many days does it rain in May?

In Sugar Land, in May, during 14.4 rainfall days, 4.33" (110mm) of precipitation is typically accumulated.

When it does not snow?

March through November are months without snowfall.

What is the average length of the day in May?

In Sugar Land, the average day length in May is 13h and 39min.

What time are sunrise and sunset in May?

On the first day of May, sunrise is at 6:39 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 8:17 pm CDT.

How many hours of sunshine does Sugar Land have in May?

The average sunshine duration in May in Sugar Land is 9h.

What are the months with the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 7.

How high is the UV index in May?

In Sugar Land, the average daily maximum UV index in May is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability 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 May
Sugar Land, TX

Average temperature in May - Sugar Land, TX
  • Average high temperature in May: 85.5°F

The warmest month (with the highest average high temperature) is August (93.7°F).
The month with the lowest average high temperature is January (61.3°F).

  • Average low temperature in May: 68.5°F

The month with the highest average low temperature is August (76.5°F).
The coldest month (with the lowest average low temperature) is January (45.9°F).

Average pressure in May
Sugar Land, TX

Average pressure in May - Sugar Land, TX
  • Average pressure in May: 29.94"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
Sugar Land, TX

Average wind speed in May - Sugar Land, TX
  • Average wind speed in May: 8mph

The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest month (with the lowest average wind speed) is September (5.7mph).

Average humidity in May
Sugar Land, TX

Average humidity in May - Sugar Land, TX
  • Average humidity in May: 76%

The months with the highest relative humidity are February and March (78%).
The month with the lowest relative humidity is October (71%).

Average rainfall in May
Sugar Land, TX

Average rainfall in May - Sugar Land, TX
  • Average rainfall in May: 4.33"

The wettest month (with the highest rainfall) is September (4.49").
The driest month (with the least rainfall) is February (1.69").

Average rainfall days in May
Sugar Land, TX

Average rainfall days in May - Sugar Land, TX
  • Average rainfall days in May: 14.4 days

The month with the highest number of rainy days is September (19.7 days).
The month with the least rainy days is January (11.4 days).

Average snowfall in May
Sugar Land, TX

Average snowfall in May - Sugar Land, TX
  • Average snowfall in May: 0"

The month with the highest snowfall is December (0.12").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in May
Sugar Land, TX

Average snowfall days in May - Sugar Land, 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
Sugar Land, TX

Average daylight in May / Average sunshine in May - Sugar Land, 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: 9h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

Average sunshine days in May
Sugar Land, TX

Average sunshine days in May - Sugar Land, TX
  • Average sunshine days in May: 13.9 days

The month with the most sunshine days is January (17.5 days).
The month with the least sunshine days is September (8.1 days).

Average UV index in May
Sugar Land, TX

Average UV index in May - Sugar Land, 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
Sugar Land, TX

Average cloud cover in May - Sugar Land, TX
  • Average cloud cover in May: 40

The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are August and October (Cloud cover 29).

Average visibility in May
Sugar Land, TX

Average visibility in May - Sugar Land, TX
  • Average visibility in May: 6mi

The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).

Sugar Land, Texas, USA

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