May weather forecast
Riviera, TX

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Weather in May

The last month of the spring, May, is a hot month in Riviera, Texas, with an average temperature ranging between min 71.8°F (22.1°C) and max 87.6°F (30.9°C).

Temperature

Riviera in May witnesses an average high-temperature of a tropical 87.6°F (30.9°C), indicating a slight variation from April's 82.8°F (28.2°C). Riviera experiences an average nighttime temperature of 71.8°F (22.1°C) in the month of May.

Heat index

The heat index in May is estimated at a very hot 102.2°F (39°C). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

The most humid month is May, with an average relative humidity of 74%.

Rainfall

In Riviera, in May, during 9.1 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. In Riviera, during the entire year, the rain falls for 90.4 days and collects up to 7.28" (185mm) of precipitation.

Snowfall

January through November are months without snowfall in Riviera.

Daylight

In Riviera, the average length of the day in May is 13h and 30min.
On the first day of the month, sunrise is at 6:51 am and sunset at 8:04 pm. On the last day of May, sunrise is at 6:36 am and sunset at 8:21 pm CDT.

Sunshine

In Riviera, the average sunshine in May is 9.4h.

UV index

In Riviera, the average daily maximum UV index in May is 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.
Note: In May, the maximum UV index of 7 transforms into these recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Updated: Jul 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during May?

The average high-temperature and low-temperature during May are 87.6°F (30.9°C) and 71.8°F (22.1°C) respectively. In May, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, is estimated at 102.2°F (39°C).

What is the most humid month?

May is the most humid month, with an average relative humidity of 74%.

What is the average humidity in May?

In Riviera, the average relative humidity in May is 74%.

How many days does it rain in May in Riviera?

In Riviera, during May, the rain falls for 9.1 days and regularly aggregates up to 1.06" (27mm) of precipitation.

When it does not snow in Riviera?

January through November are months without snowfall.

How many hours of daylight does Riviera have in May?

In May, the average day length in Riviera is 13h and 30min.

When is the sunrise / sunset in May?

On the first day of May in Riviera, sunrise is at 6:51 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 8:21 pm CDT.

How many hours of sunshine does Riviera have in May?

In Riviera, the average sunshine duration in May is 9.4h.

What is the UV index reading in May?

In Riviera, 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 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
Riviera, TX

Average temperature in May - Riviera, TX
  • Average high temperature in May: 87.6°F

The warmest month (with the highest average high temperature) is August (95.9°F).
The month with the lowest average high temperature is January (65.8°F).

  • Average low temperature in May: 71.8°F

The month with the highest average low temperature is August (78.4°F).
The coldest month (with the lowest average low temperature) is January (50.7°F).

Average pressure in May
Riviera, TX

Average pressure in May - Riviera, TX
  • Average pressure in May: 29.88"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in May
Riviera, TX

Average wind speed in May - Riviera, TX
  • Average wind speed in May: 11.1mph

The windiest month (with the highest average wind speed) is May (11.1mph).
The calmest month (with the lowest average wind speed) is September (8.3mph).

Average humidity in May
Riviera, TX

Average humidity in May - Riviera, TX
  • Average humidity in May: 74%

The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is August (65%).

Average rainfall in May
Riviera, TX

Average rainfall in May - Riviera, TX
  • Average rainfall in May: 1.06"

The wettest month (with the highest rainfall) is September (1.3").
The driest month (with the least rainfall) is February (0.28").

Average rainfall days in May
Riviera, TX

Average rainfall days in May - Riviera, TX
  • Average rainfall days in May: 9.1 days

The month with the highest number of rainy days is September (13.8 days).
The month with the least rainy days is February (4.9 days).

Average snowfall in May
Riviera, TX

Average snowfall in May - Riviera, 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
Riviera, TX

Average snowfall days in May - Riviera, TX
  • Average snowfall days in May: 0 days

The months with the highest number of snowfall days are February and December (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).

Average daylight in May /
Average sunshine in May
Riviera, TX

Average daylight in May / Average sunshine in May - Riviera, TX
  • Average daylight in May: 13h and 3min

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: 9h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

Average sunshine days in May
Riviera, TX

Average sunshine days in May - Riviera, TX
  • Average sunshine days in May: 18.9 days

The month with the most sunshine days is January (23.8 days).
The month with the least sunshine days is September (14.5 days).

Average UV index in May
Riviera, TX

Average UV index in May - Riviera, TX
  • Average UV index in May: 7

The month with the highest UV index is July (UV index 8).
The months with the lowest UV index are January and December (UV index 4).

Average cloud cover in May
Riviera, TX

Average cloud cover in May - Riviera, TX
  • Average cloud cover in May: 37

The months with the most cloud cover are February and December (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 19).

Average visibility in May
Riviera, TX

Average visibility in May - Riviera, 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).

Riviera, Texas, USA

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