April weather forecast
Rio Grande City, TX

Share

Weather in April

April in Rio Grande City, Texas, is a hot spring month, with an average temperature fluctuating between 68.4°F (20.2°C) and 90.1°F (32.3°C).

Temperature

April's arrival signals a subtle increase in average high-temperatures, moving from March's moderately hot 83.3°F (28.5°C) to a tropical 90.1°F (32.3°C). April nights bring a pronounced temperature shift, with averages hovering around an agreeable 68.4°F (20.2°C).

Heat index

April's average heat index is computed to be a torrid 98.6°F (37°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Data suggests that the heat index is set for environments in shade and with a light wind. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a composite of temperature and humidity figures to convey how warm it feels. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

The average relative humidity in April is 59%.

Rainfall

In Rio Grande City, during April, the rain falls for 7.8 days and regularly aggregates up to 0.75" (19mm) of precipitation. In Rio Grande City, during the entire year, the rain falls for 98.5 days and collects up to 13.11" (333mm) of precipitation.

Snowfall

In Rio Grande City, snow does not fall in March through December.

Daylight

In Rio Grande City, the average length of the day in April is 12h and 48min.
On the first day of the month, sunrise is at 7:25 am and sunset at 7:52 pm. On the last day of April, sunrise is at 6:57 am and sunset at 8:07 pm CDT.

Sunshine

In Rio Grande City, the average sunshine in April is 8.5h.

UV index

In April, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 7 in April converts into the following recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Updated: Jun 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in April?

During April, Rio Grande City experiences an average high-temperature of 90.1°F (32.3°C) and a low-temperature of 68.4°F (20.2°C). In April, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is computed to be 98.6°F (37°C).

What is the average humidity in April?

In Rio Grande City, the average relative humidity in April is 59%.

How many days does it rain in April?

In Rio Grande City, during April, the rain falls for 7.8 days and regularly aggregates up to 0.75" (19mm) of precipitation.

When it does not snow?

In Rio Grande City, snow does not fall in March through December.

How many hours of daylight does Rio Grande City have in April?

In Rio Grande City, the average day length in April is 12h and 48min.

When are sunrise and sunset in April?

On the first day of April, sunrise is at 7:25 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 8:07 pm CDT.

How many hours of sunshine does Rio Grande City have in April?

In Rio Grande City, the average sunshine duration in April is 8.5h.

What is the UV index reading in April?

In April, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Rio Grande City, TX

Average temperature in April - Rio Grande City, TX
  • Average high temperature in April: 90.1°F

The warmest month (with the highest average high temperature) is August (100°F).
The month with the lowest average high temperature is January (69.8°F).

  • Average low temperature in April: 68.4°F

The month with the highest average low temperature is August (80.1°F).
The coldest month (with the lowest average low temperature) is January (52.7°F).

Average pressure in April
Rio Grande City, TX

Average pressure in April - Rio Grande City, TX
  • Average pressure in April: 29.88"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 April
Rio Grande City, TX

Average wind speed in April - Rio Grande City, TX
  • Average wind speed in April: 12.6mph

The windiest month (with the highest average wind speed) is July (13.9mph).
The calmest month (with the lowest average wind speed) is December (9.2mph).

Average humidity in April
Rio Grande City, TX

Average humidity in April - Rio Grande City, TX
  • Average humidity in April: 59%

The month with the highest relative humidity is December (65%).
The month with the lowest relative humidity is August (53%).

Average rainfall in April
Rio Grande City, TX

Average rainfall in April - Rio Grande City, TX
  • Average rainfall in April: 0.75"

The wettest month (with the highest rainfall) is September (2.56").
The driest month (with the least rainfall) is February (0.47").

Average rainfall days in April
Rio Grande City, TX

Average rainfall days in April - Rio Grande City, TX
  • Average rainfall days in April: 7.8 days

The month with the highest number of rainy days is September (15.3 days).
The month with the least rainy days is February (5.8 days).

Average snowfall days in April
Rio Grande City, TX

Average snowfall days in April - Rio Grande City, TX
  • Average snowfall days in April: 0 days

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

Average daylight in April /
Average sunshine in April
Rio Grande City, TX

Average daylight in April / Average sunshine in April - Rio Grande City, TX
  • Average daylight in April: 12h and 5min

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 April: 8h and 3min

The months with the most sunshine are June and July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

Average sunshine days in April
Rio Grande City, TX

Average sunshine days in April - Rio Grande City, TX
  • Average sunshine days in April: 20.3 days

The months with the most sunshine days are July and August (22.6 days).
The month with the least sunshine days is September (12.9 days).

Average UV index in April
Rio Grande City, TX

Average UV index in April - Rio Grande City, TX
  • Average UV index in April: 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 April
Rio Grande City, TX

Average cloud cover in April - Rio Grande City, TX
  • Average cloud cover in April: 30

The month with the most cloud cover is December (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 16).

Average visibility in April
Rio Grande City, TX

Average visibility in April - Rio Grande City, TX
  • Average visibility in April: 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).

Rio Grande City, Texas, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location