July weather forecast
Port Lavaca, TX

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Weather in July

July, the same as June, in Port Lavaca, Texas, is another hot summer month, with an average temperature fluctuating between 89.8°F (32.1°C) and 79°F (26.1°C).

Temperature

A minimal variation is noted in Port Lavaca's average high-temperature at the onset of July, reaching a still hot 89.8°F (32.1°C) from June's 88.2°F (31.2°C). Port Lavaca in July experiences a low-temperature average of 79°F (26.1°C).

Heat index

July's heat index is computed to be a blisteringly hot 109.4°F (43°C). Heed: Expect heat cramps and heat exhaustion. Continued action may cause heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'feels like' or 'real feel', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

In July, the average relative humidity is 76%.

Rainfall

In Port Lavaca, during July, the rain falls for 13.3 days and regularly aggregates up to 2.28" (58mm) of precipitation. In Port Lavaca, during the entire year, the rain falls for 156.8 days and collects up to 23.5" (597mm) of precipitation.

Snowfall

February through December are months without snowfall.

Ocean temperature

In Port Lavaca, Texas, the average seawater temperature in July is 85.8°F (29.9°C).
Note: Water temperatures between 77°F (25°C) and 84.2°F (29°C) are regarded as highly pleasant, making all water activities enjoyable without any discomfort over long durations.

Daylight

In Port Lavaca, Texas, the average length of the day in July is 13h and 46min.
On the first day of July in Port Lavaca, Texas, sunrise is at 6:32 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 8:17 pm CDT.

Sunshine

The month with the most sunshine in Port Lavaca is July, with an average of 10.8h of sunshine.

UV index

The months with the highest UV index in Port Lavaca are May through August, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: An average UV index of 7 in July transforms into this advice:
Shun overexposure. Protection from sun ravages is indispensable. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Caution! The Sun's UV rays become stronger due to reflections from water and sand.
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Frequently asked questions

How hot does it get in Port Lavaca in July?

The average high-temperature and low-temperature during July are 89.8°F (32.1°C) and 79°F (26.1°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in July is computed to be 109.4°F (43°C).

What is the average humidity in July in Port Lavaca?

In Port Lavaca, Texas, the average relative humidity in July is 76%.

How much does it rain in Port Lavaca in July?

In Port Lavaca, in July, during 13.3 rainfall days, 2.28" (58mm) of precipitation is typically accumulated.

When it does not snow in Port Lavaca?

February through December are months without snowfall in Port Lavaca.

What is the water temperature in July in Port Lavaca?

In July, the average ocean temperature in Port Lavaca, Texas, is 85.8°F (29.9°C). For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the average length of the day in July in Port Lavaca?

The average day length in July in Port Lavaca, Texas, is 13h and 46min.

When is the sunrise / sunset in July in Port Lavaca?

In July, on the first day of the month, sunrise is at 6:32 am and sunset at 8:28 pm. On the last day of the month, in Port Lavaca, Texas, sunrise is at 6:47 am and sunset at 8:17 pm CDT.

What month has the most sunshine in Port Lavaca?

July has the most sunshine of the year in Port Lavaca, with an average of 10.8h of sunshine.

How many hours of sunshine does Port Lavaca have in July?

In Port Lavaca, the average sunshine duration in July is 10.8h.

When is the highest UV index in Port Lavaca?

The months with the highest UV index in Port Lavaca, Texas, are May through August, with an average maximum UV index of 7.

What is the UV index intensity in July in Port Lavaca?

In Port Lavaca, Texas, the average daily maximum UV index in July is 7. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJFMAMJJulyASOND
Jun
July
Aug
Average high temperature
88.2°F 31.2°C
89.8°F 32.1°C
90.7°F 32.6°C
Average low temperature
77.2°F 25.1°C
79°F 26.1°C
79.3°F 26.3°C
Average pressure
29.91" 760mmHg
29.96" 761mmHg
29.93" 760mmHg
Average wind speed
9.7mph 15.6km/h
9.2mph 14.8km/h
8.8mph 14.2km/h
Average max. wind speed
10.4mph 16.7km/h
9.8mph 15.8km/h
9.4mph 15.1km/h
Average wind speed gusts
14.5mph 23.3km/h
13.5mph 21.7km/h
12.8mph 20.6km/h
Average humidity
77%
76%
73%
Average rainfall
2.68" 68mm
2.28" 58mm
2.4" 61mm
Average rainfall days
15.2
13.3
14
Average snowfall
0" 0mm
0" 0mm
0" 0mm
Average snowfall days
0
0
0
Average sea temperature
83.9°F 28.8°C
85.8°F 29.9°C
86.7°F 30.4°C
Average daylight
13h 5min
13h 5min
13h 1min
Average sunshine
10h 4min
10h 5min
10h 2min
Average sunshine days
10.3
14.7
12
Average UV index
7
7
7
Average cloud cover
28%
26%
25%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in July
Port Lavaca, TX

Average temperature in July - Port Lavaca, TX
  • Average high temperature in July: 89.8°F

The warmest month (with the highest average high temperature) is August (90.7°F).
The month with the lowest average high temperature is January (62.2°F).

  • Average low temperature in July: 79°F

The month with the highest average low temperature is August (79.3°F).
The coldest month (with the lowest average low temperature) is January (49.6°F).

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Average pressure in July
Port Lavaca, TX

Average pressure in July - Port Lavaca, TX
  • Average pressure in July: 29.96"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in July
Port Lavaca, TX

Average wind speed in July - Port Lavaca, TX
  • Average wind speed in July: 9.2mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is September (8.3mph).

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Average humidity in July
Port Lavaca, TX

Average humidity in July - Port Lavaca, TX
  • Average humidity in July: 76%

The months with the highest relative humidity are February and March (79%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in July
Port Lavaca, TX

Average rainfall in July - Port Lavaca, TX
  • Average rainfall in July: 2.28"

The wettest month (with the highest rainfall) is September (3.35").
The driest month (with the least rainfall) is February (0.87").

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Average rainfall days in July
Port Lavaca, TX

Average rainfall days in July - Port Lavaca, TX
  • Average rainfall days in July: 13.3 days

The month with the highest number of rainy days is September (19.8 days).
The month with the least rainy days is January (10.8 days).

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Average snowfall in July
Port Lavaca, TX

Average snowfall in July - Port Lavaca, 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
Port Lavaca, TX

Average snowfall days in July - Port Lavaca, TX
  • Average snowfall days in July: 0 days

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

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Average sea temperature in July
Port Lavaca, TX

Average sea temperature in July - Port Lavaca, TX
  • Average sea temperature in July: 85.8°F

The best month for swimming (with the highest average sea temperature) is August (86.7°F).
The coldest month (with the lowest average sea temperature) is January (60.1°F).

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Average daylight in July /
Average sunshine in July
Port Lavaca, TX

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

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 July: 10h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).

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Average sunshine days in July
Port Lavaca, TX

Average sunshine days in July - Port Lavaca, TX
  • Average sunshine days in July: 14.7 days

The month with the most sunshine days is January (17.5 days).
The month with the least sunshine days is September (8.5 days).

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Average UV index in July
Port Lavaca, TX

Average UV index in July - Port Lavaca, TX
  • Average UV index in July: 7

The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 4).

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Average cloud cover in July
Port Lavaca, TX

Average cloud cover in July - Port Lavaca, TX
  • Average cloud cover in July: 26

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 25).

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Average visibility in July
Port Lavaca, TX

Average visibility in July - Port Lavaca, 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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Port Lavaca, Texas, USA

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