July weather forecast
San Leon, TX

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Weather in July

July, like June, is a hot summer month in San Leon, Texas, with an average temperature varying between 88.3°F (31.3°C) and 80.2°F (26.8°C).

Temperature

July's onset brings an average high-temperature of a still hot 88.3°F (31.3°C), showing a minute difference from June's 86.7°F (30.4°C). With a barely noticeable fluctuation in temperature, San Leon reaches an average low of 80.2°F (26.8°C) during the July nights.

Heat index

In July, the average heat index is estimated at a scorching 104°F (40°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'real feel', gives a temperature feeling by integrating air temperature and humidity. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

In San Leon, the average relative humidity in July is 76%.

Rainfall

In San Leon, during July, the rain falls for 19.9 days and regularly aggregates up to 5.24" (133mm) of precipitation. In San Leon, during the entire year, the rain falls for 188.2 days and collects up to 44.13" (1121mm) of precipitation.

Snowfall

February through December are months without snowfall.

Ocean temperature

In July, the average ocean temperature is 86°F (30°C).
Note: Swimming or participating in water activities at temperatures above 86°F (30°C) might not be as invigorating as one might hope.

Daylight

In July, the average length of the day is 13h and 49min.
On the first day of the month, sunrise is at 6:23 am and sunset at 8:23 pm. On the last day of July, sunrise is at 6:39 am and sunset at 8:12 pm CDT.

Sunshine

July and August, with an average of 10.7h of sunshine, are months with the most sunshine in San Leon, Texas.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index in San Leon. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In July, the maximum UV index of 7 transforms into these recommendations:
Shun overexposure. Protection from sun ravages is indispensable. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Warning! Reflective surfaces like sand and water amplify the Sun's UV radiation.
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Frequently asked questions

How hot is it in San Leon in July?

The high-temperature during July is 88.3°F (31.3°C) and the low-temperature is 80.2°F (26.8°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is estimated at 104°F (40°C).

What is the average humidity in July in San Leon?

In July, the average relative humidity in San Leon, Texas, is 76%.

How many days does it rain in July in San Leon?

In July, in San Leon, Texas, the rain falls for 19.9 days. Throughout July, 5.24" (133mm) of precipitation is accumulated.

When it does not snow in San Leon?

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

What is the ocean temperature in July in San Leon?

In July, the average ocean temperature in San Leon is 86°F (30°C). The water temperature above 86°F (30°C) is arguably regarded as unpleasant. The primary purpose of entering the water - cooling down from sunshine and high temperatures - is lost.

What is the average length of the day in July in San Leon?

The average day length in July in San Leon, Texas, is 13h and 49min.

What time are sunrise and sunset in July in San Leon?

On the first day of July in San Leon, Texas, sunrise is at 6:23 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 8:12 pm CDT.

What are the months with the most sunshine in San Leon?

July and August, with an average of 10.7h of sunshine, are months with the most sunshine.

How long on average sun shines in July in San Leon?

The average sunshine duration in July is 10.7h.

When is the highest UV index in San Leon?

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

How high is the UV index in July in San Leon?

In July, the average daily maximum UV index in San Leon, Texas, 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 July
San Leon, TX

Average temperature in July - San Leon, TX
  • Average high temperature in July: 88.3°F

The warmest month (with the highest average high temperature) is August (89.2°F).
The month with the lowest average high temperature is January (59.5°F).

  • Average low temperature in July: 80.2°F

The months with the highest average low temperature are July and August (80.2°F).
The coldest month (with the lowest average low temperature) is January (49.5°F).

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Average pressure in July
San Leon, TX

Average pressure in July - San Leon, TX
  • Average pressure in July: 29.98"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).

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Average wind speed in July
San Leon, TX

Average wind speed in July - San Leon, TX
  • Average wind speed in July: 8.6mph

The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest months (with the lowest average wind speed) are August and September (8.3mph).

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Average humidity in July
San Leon, TX

Average humidity in July - San Leon, TX
  • Average humidity in July: 76%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in July
San Leon, TX

Average rainfall in July - San Leon, TX
  • Average rainfall in July: 5.24"

The wettest month (with the highest rainfall) is September (6.77").
The driest month (with the least rainfall) is March (1.81").

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Average rainfall days in July
San Leon, TX

Average rainfall days in July - San Leon, TX
  • Average rainfall days in July: 19.9 days

The month with the highest number of rainy days is August (22.1 days).
The month with the least rainy days is November (11.6 days).

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Average snowfall in July
San Leon, TX

Average snowfall in July - San Leon, TX
  • Average snowfall in July: 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").

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Average snowfall days in July
San Leon, TX

Average snowfall days in July - San Leon, TX
  • Average snowfall days in July: 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, November and December (0 days).

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Average sea temperature in July
San Leon, TX

Average sea temperature in July - San Leon, TX
  • Average sea temperature in July: 86.1°F

The best month for swimming (with the highest average sea temperature) is August (87.2°F).
The coldest month (with the lowest average sea temperature) is January (56.5°F).

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Average daylight in July /
Average sunshine in July
San Leon, TX

Average daylight in July / Average sunshine in July - San Leon, TX
  • Average daylight in July: 13h and 5min

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 July: 10h and 4min

The months with the most sunshine are July and August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

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Average sunshine days in July
San Leon, TX

Average sunshine days in July - San Leon, TX
  • Average sunshine days in July: 7.9 days

The month with the most sunshine days is January (16.3 days).
The month with the least sunshine days is August (6.3 days).

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Average UV index in July
San Leon, TX

Average UV index in July - San Leon, TX
  • Average UV index in July: 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).

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Average cloud cover in July
San Leon, TX

Average cloud cover in July - San Leon, TX
  • Average cloud cover in July: 28

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 27).

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Average visibility in July
San Leon, TX

Average visibility in July - San Leon, TX
  • Average visibility in July: 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).

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San Leon, Texas, USA

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