June weather forecast
Port Isabel, TX

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Weather in June

June, the first month of the summer in Port Isabel, is also a moderately hot month, with temperature in the range of an average low of 80.1°F (26.7°C) and an average high of 85.8°F (29.9°C).

Temperature

With the onset of June, the average high-temperature registers at a still warm 85.8°F (29.9°C), subtly different from May's 81.9°F (27.7°C). The temperature during June sees a subtle transition from day to night, averaging a low of 80.1°F (26.7°C).

Heat index

The heat index in June is evaluated at a very hot 98.6°F (37°C). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', represents the fusion of temperature and moisture in the air to suggest how warm it feels. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

In Port Isabel, the average relative humidity in June is 78%.

Rainfall

In Port Isabel, during June, the rain falls for 13.3 days and regularly aggregates up to 2.24" (57mm) of precipitation. In Port Isabel, during the entire year, the rain falls for 143.2 days and collects up to 21.38" (543mm) of precipitation.

Ocean temperature

In Port Isabel, in June, the average water temperature is 82.9°F (28.3°C).
Note: Between 77°F (25°C) and 84.2°F (29°C), water temperature is typically considered very warm and pleasurable by everyone. Water activities at these temperatures are enjoyable for extended periods without discomfort.

Daylight

June has the longest days of the year, with an average of 13h and 42min of daylight.
On the first day of the month, sunrise is at 6:36 am and sunset at 8:17 pm. On the last day of June, sunrise is at 6:40 am and sunset at 8:25 pm CDT.

Sunshine

In Port Isabel, Texas, the average sunshine in June is 11.1h.

UV index

April through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In June, the UV index of 7 transforms into the following advice:
Fend off overexposure. Sun protection is vital. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Note! The Sun's UV radiation gets intensified with the reflection from sand and water.
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Frequently asked questions

How hot is June in Port Isabel?

The high-temperature, in June, in Port Isabel, records 85.8°F (29.9°C), while the low-temperature is 80.1°F (26.7°C). In June, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 98.6°F (37°C).

What is the average humidity in June in Port Isabel?

In June, the average relative humidity in Port Isabel is 78%.

How many days does it rain in June in Port Isabel?

In Port Isabel, Texas, in June, during 13.3 rainfall days, 2.24" (57mm) of precipitation is typically accumulated.

How warm is the water in June in Port Isabel?

In Port Isabel, in June, the average water temperature is 82.9°F (28.3°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

When are the longest days in Port Isabel?

June has the longest days of the year in Port Isabel, with an average of 13h and 42min of daylight.

What is the average length of the day in June in Port Isabel?

The average day length in June is 13h and 45min.

When is the sunrise / sunset in June in Port Isabel?

In June, on the first day of the month, sunrise is at 6:36 am and sunset at 8:17 pm. On the last day of the month, in Port Isabel, Texas, sunrise is at 6:40 am and sunset at 8:25 pm CDT.

How long on average sun shines in June in Port Isabel?

The average sunshine duration in June is 11.1h.

What is the month with the highest UV index in Port Isabel?

April through September, with an average maximum UV index of 7, are months with the highest UV index in Port Isabel, Texas.

What is the UV index intensity in June in Port Isabel?

In June, the average daily maximum UV index in Port Isabel, Texas, is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to Sun's UV rays.

Average temperature in June
Port Isabel, TX

Average temperature in June - Port Isabel, TX
  • Average high temperature in June: 85.8°F

The warmest month (with the highest average high temperature) is August (88°F).
The month with the lowest average high temperature is January (67.1°F).

  • Average low temperature in June: 80.1°F

The month with the highest average low temperature is August (82°F).
The coldest month (with the lowest average low temperature) is January (59.5°F).

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Average pressure in June
Port Isabel, TX

Average pressure in June - Port Isabel, TX
  • Average pressure in June: 29.88"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are May and June (29.88"Hg).

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Average wind speed in June
Port Isabel, TX

Average wind speed in June - Port Isabel, TX
  • Average wind speed in June: 12.9mph

The windiest month (with the highest average wind speed) is April (14.2mph).
The calmest month (with the lowest average wind speed) is September (10.9mph).

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Average humidity in June
Port Isabel, TX

Average humidity in June - Port Isabel, TX
  • Average humidity in June: 78%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in June
Port Isabel, TX

Average rainfall in June - Port Isabel, TX
  • Average rainfall in June: 2.24"

The wettest month (with the highest rainfall) is September (4.13").
The driest month (with the least rainfall) is April (0.51").

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Average rainfall days in June
Port Isabel, TX

Average rainfall days in June - Port Isabel, TX
  • Average rainfall days in June: 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 March (8.2 days).

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Average sea temperature in June
Port Isabel, TX

Average sea temperature in June - Port Isabel, TX
  • Average sea temperature in June: 82.9°F

The best month for swimming (with the highest average sea temperature) is August (85.1°F).
The coldest month (with the lowest average sea temperature) is February (66.7°F).

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Average daylight in June /
Average sunshine in June
Port Isabel, TX

Average daylight in June / Average sunshine in June - Port Isabel, TX
  • Average daylight in June: 13h and 4min

The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in June: 11h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

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Average sunshine days in June
Port Isabel, TX

Average sunshine days in June - Port Isabel, TX
  • Average sunshine days in June: 14.5 days

The month with the most sunshine days is March (20.7 days).
The month with the least sunshine days is September (7.2 days).

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Average UV index in June
Port Isabel, TX

Average UV index in June - Port Isabel, TX
  • Average UV index in June: 7

The months with the highest UV index are April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February and December (UV index 5).

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Average cloud cover in June
Port Isabel, TX

Average cloud cover in June - Port Isabel, TX
  • Average cloud cover in June: 25

The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 20).

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Average visibility in June
Port Isabel, TX

Average visibility in June - Port Isabel, TX
  • Average visibility in June: 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 Isabel, Texas, USA

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