May weather forecast
Mission, TX

The last month of the spring, May, is another hot month in Mission, Texas, with an average temperature fluctuating between 72.9°F (22.7°C) and 92.5°F (33.6°C).

Temperature

In May, the average high-temperature is almost the same as in April - a still tropical 92.5°F (33.6°C). The average low-temperature, in Mission, is 72.9°F (22.7°C).

Heat index

The average heat index in May is appraised at an extremely hot 111.2°F (44°C). Be wary: Heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'felt air temperature', 'real feel', or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (clothing, metabolic differences, pregnancy), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The months with the highest humidity in Mission are May and December, with an average relative humidity of 67%.

Rainfall

In Mission, during 6.2 rainfall days, 0.35" (9mm) of precipitation is typically accumulated. Throughout the year, in Mission, there are 68.7 rainfall days, and 3.62" (92mm) of precipitation is accumulated.

Snowfall

In Mission, snow does not fall in March through December.

Daylight

In Mission, the average length of the day in May is 13h and 26min.
On the first day of May in Mission, Texas, sunrise is at 6:55 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 8:20 pm CDT.

Sunshine

In May, the average sunshine in Mission is 10h.

UV index

The average daily maximum UV index in May is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 7 in May transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.