May weather forecast
San Patricio, TX

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Weather in May

May, the last month of the spring in San Patricio, is a tropical month, with an average temperature ranging between min 70.5°F (21.4°C) and max 86.5°F (30.3°C).

Temperature

San Patricio's May average high-temperature settles at a tropical 86.5°F (30.3°C), showing a near match with the preceding month. In San Patricio, May nights witness a steady temperature drop to an agreeable 70.5°F (21.4°C).

Heat index

For most parts of May, the heat index is estimated at a torrid 98.6°F (37°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', represents the fusion of temperature and moisture in the air to suggest how warm it feels. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

The most humid month in San Patricio, Texas, is May, with an average relative humidity of 75%.

Rainfall

In San Patricio, during May, the rain falls for 13.3 days and regularly aggregates up to 1.69" (43mm) of precipitation. In San Patricio, during the entire year, the rain falls for 139.6 days and collects up to 17.4" (442mm) of precipitation.

Snowfall

In San Patricio, snow does not fall in February through December.

Daylight

In May, the average length of the day is 13h and 32min.
On the first day of May in San Patricio, sunrise is at 6:50 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 8:22 pm CDT.

Sunshine

In San Patricio, Texas, the average sunshine in May is 9.2h.

UV index

In May, the average daily maximum UV index is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: A daily high UV index of 7 in May leads to these guidelines:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in San Patricio in May?

An average high-temperature, in May, in San Patricio, is 86.5°F (30.3°C) and the average low-temperature is 70.5°F (21.4°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in May is estimated at 98.6°F (37°C).

What is the most humid month in San Patricio?

The most humid month is May, with an average relative humidity of 75%.

What is the average humidity in May in San Patricio?

In San Patricio, Texas, the average relative humidity in May is 75%.

How much does it rain in San Patricio in May?

In San Patricio, in May, it is raining for 13.3 days, with typically 1.69" (43mm) of accumulated precipitation.

When it does not snow in San Patricio?

In San Patricio, Texas, snow does not fall in February through December.

How many hours of daylight does San Patricio have in May?

In San Patricio, the average day length in May is 13h and 32min.

When is the sunrise / sunset in May in San Patricio?

In May, on the first day of the month, sunrise is at 6:50 am and sunset at 8:05 pm. On the last day of the month, in San Patricio, Texas, sunrise is at 6:34 am and sunset at 8:22 pm CDT.

How long on average sun shines in May in San Patricio?

In San Patricio, Texas, the average sunshine duration in May is 9.2h.

What is the UV index intensity in May in San Patricio?

The average daily maximum UV index in May in San Patricio is 7. A UV Index estimate of 6 to 7 represents a high health threat 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
San Patricio, TX

Average temperature in May - San Patricio, TX
  • Average high temperature in May: 86.5°F

The warmest month (with the highest average high temperature) is August (96.1°F).
The month with the lowest average high temperature is January (64.4°F).

  • Average low temperature in May: 70.5°F

The month with the highest average low temperature is August (78.1°F).
The coldest month (with the lowest average low temperature) is January (48.7°F).

Average pressure in May
San Patricio, TX

Average pressure in May - San Patricio, TX
  • Average pressure in May: 29.89"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in May
San Patricio, TX

Average wind speed in May - San Patricio, TX
  • Average wind speed in May: 10.7mph

The windiest month (with the highest average wind speed) is May (10.7mph).
The calmest month (with the lowest average wind speed) is September (8mph).

Average humidity in May
San Patricio, TX

Average humidity in May - San Patricio, TX
  • Average humidity in May: 75%

The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (65%).

Average rainfall in May
San Patricio, TX

Average rainfall in May - San Patricio, TX
  • Average rainfall in May: 1.69"

The wettest month (with the highest rainfall) is September (2.48").
The driest month (with the least rainfall) is February (0.75").

Average rainfall days in May
San Patricio, TX

Average rainfall days in May - San Patricio, TX
  • Average rainfall days in May: 13.3 days

The month with the highest number of rainy days is September (17.1 days).
The months with the least rainy days are July and August (8.3 days).

Average snowfall in May
San Patricio, TX

Average snowfall in May - San Patricio, 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 Patricio, TX

Average snowfall days in May - San Patricio, TX
  • Average snowfall days in May: 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 May /
Average sunshine in May
San Patricio, TX

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

The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).

  • Average sunshine in May: 9h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

Average sunshine days in May
San Patricio, TX

Average sunshine days in May - San Patricio, TX
  • Average sunshine days in May: 14.8 days

The month with the most sunshine days is July (20.9 days).
The month with the least sunshine days is September (10.9 days).

Average UV index in May
San Patricio, TX

Average UV index in May - San Patricio, TX
  • Average UV index in May: 7

The month with the highest UV index is July (UV index 8).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in May
San Patricio, TX

Average cloud cover in May - San Patricio, TX
  • Average cloud cover in May: 39

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 20).

Average visibility in May
San Patricio, TX

Average visibility in May - San Patricio, 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).

San Patricio, Texas, USA

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