Port Isabel, TX Weather


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The most pleasant months of the year for Port Isabel are November, March and April. In Port Isabel, there are 6 comfortable months with high temperatures in the range of 70-85°. August is the hottest month for Port Isabel with an average high temperature of 91.3°, which ranks it as one of the coolest places in Texas. December is the snowiest month in Port Isabel with 0.1 inches of snow, and no months of the year have significant snowfall. The humidity here has been described as oppressive or stifling in the summer.

Today's Weather - Port Isabel, TX

2 AM PST

Partly Cloudy

76°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
OvernightPartly Cloudy75° / 86°SE 21 mph
Saturday NightPartly Cloudy75° / 87°SE 17 to 23 mph
Sunday NightMostly Cloudy75° / 85°SE 9 to 16 mph
Monday NightSlight Chance Showers And Thunderstorms74° / 86°SE 12 to 15 mph
Tuesday NightMostly Cloudy76° / 85°SE 17 mph
Wednesday NightMostly Cloudy75° / 85°SE 20 mph
Thursday NightMostly Cloudy75° / 85°SE 18 mph

Weather Highlights

Summer High: the July high is around 91 degrees
Winter Low: the January low is 53
Rain: averages 27 inches of rain a year
Snow: averages 0 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Port Isabel area is 2.8 (10=best), which means it is less comfortable than most places in Texas.

2.8 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7.8. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January69° 53°
February71° 55°
March76° 61°
April80° 67°
May85° 73°
June89° 77°
July91° 78°
August91° 78°
September89° 76°
October84° 70°
November78° 63°
December71° 54°
Hot, Freezing, Rainy, Snowy Days: Port Isabel
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January0080
February0060
March0050
April1040
May3050
June12050
July17050
August21060
September120100
October2070
November0060
December0070

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

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