Port Isabel, TX weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Port Isabel now
Loading the National Weather Service forecast…
Port Isabel weather by the hour
Port Isabel weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Port Isabel.
This week in Port Isabel
Sunrise, sunset and moon in Port Isabel
What is the weather usually like in Port Isabel?
Köppen climate classification, calculated from the 1991–2020 normals
- Augustwarmest month · 92°F average high
- Januarycoldest month · 52°F average low
- 28.7 inprecipitation per year · 730 mm
- 0.2 insnowfall per year · 1 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Port Isabel: February to April and November, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station PORT ISABEL, TX US (USC00417179), adjusted for the elevation of Port Isabel.
Port Isabel weather month by month
Sunrise and sunset in Port Isabel through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:16 AM | 6:00 PM | 10 h 44 min |
| February | 7:03 AM | 6:23 PM | 11 h 20 min |
| March | 7:36 AM | 7:39 PM | 12 h 2 min |
| April | 7:04 AM | 7:53 PM | 12 h 49 min |
| May | 6:41 AM | 8:09 PM | 13 h 28 min |
| June | 6:35 AM | 8:23 PM | 13 h 48 min |
| July | 6:45 AM | 8:24 PM | 13 h 39 min |
| August | 7:00 AM | 8:06 PM | 13 h 5 min |
| September | 7:13 AM | 7:34 PM | 12 h 20 min |
| October | 7:27 AM | 7:02 PM | 11 h 35 min |
| November | 6:46 AM | 5:41 PM | 10 h 54 min |
| December | 7:07 AM | 5:41 PM | 10 h 33 min |
Times for the 15th of each month, local time (America/Chicago).
What is the weather like in Port Isabel?
Port Isabel has a humid subtropical climate. The warmest month is August, with an average high of 92°F (33°C), and the coldest is January, with average lows of 52°F (11°C).
It gets about 28.7 inches (730 mm) of precipitation a year. The wettest month is September and the driest is February.
The best time to visit Port Isabel is February to April and November. At 7 ft of elevation, nights are mild most of the year. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Port Isabel
Weather in towns near Port Isabel
Questions about the weather in Port Isabel
What is the hottest month in Port Isabel?
August, with an average high of 92°F (33°C).
What is the coldest month in Port Isabel?
January, with an average low of 52°F (11°C).
How much does it rain in Port Isabel?
About 28.7 inches (730 mm) a year; the wettest month is September.
Does it snow in Port Isabel?
Rarely: less than an inch in an average year.
When is the best time to visit Port Isabel?
February to April and November, when temperatures are most pleasant and rainy days are fewer.
What climate does Port Isabel have?
Humid subtropical (Köppen Cfa).
What is the weather like in Port Isabel in November?
Highs average 78°F and lows 61°F, with about 1.8 inches of precipitation.
What time is sunrise in Port Isabel?
Around 6:46 AM in mid-November, and sunset around 5:41 PM. Today’s exact times are shown above.
Where does this Port Isabel weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Port Isabel.
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