Live Weather & Forecast
Weather in Port Isabel
Texas, United States · Real-time conditions & 3-day outlook
29°C
Feels like 37°C
85°F / Feels 99°F
Light rain
Port Isabel, Texas
🌞 Daytime
Updated: 2026-04-15 15:45
Humidity
59%
Wind
29.5 km/h SE
Wind Gust
36 km/h
Pressure
1013 mb
Visibility
16 km
UV Index
8.6
(Very High)
Precipitation
0 mm
Cloud Cover
25%
Dew Point
21.8°C
Wind Degree
143°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
130.6 μg/m³
NO₂
2.1 μg/m³
O₃
84 μg/m³
SO₂
0.8 μg/m³
PM 2.5
11.8 μg/m³
PM 10
17.2 μg/m³
Today's Hourly Forecast
24-hour breakdown for Port Isabel, Texas
12 AM
24°
Overcast
1 AM
24°
Overcast
2 AM
24°
Overcast
3 AM
24°
Patchy rain nearby
4 AM
24°
Overcast
5 AM
24°
Overcast
6 AM
24°
Overcast
7 AM
24°
Overcast
8 AM
24°
Overcast
9 AM
24°
Overcast
10 AM
24°
Patchy rain nearby
11 AM
24°
Partly Cloudy
12 PM
24°
Partly Cloudy
1 PM
24°
Sunny
2 PM
24°
Sunny
3 PM
29°
Light rain
4 PM
24°
Sunny
5 PM
24°
Sunny
6 PM
24°
Partly Cloudy
7 PM
24°
Partly Cloudy
8 PM
24°
Partly Cloudy
9 PM
24°
Partly Cloudy
10 PM
24°
Partly Cloudy
11 PM
24°
Partly Cloudy
3-Day Forecast
Daily overview for Port Isabel, Texas
Today
Overcast
24°
/
24°
🌧️ 0% chance of rain
💧 Avg. humidity: 89%
💨 Max wind: 33.8 km/h
🌧️ Total precip: 0.04 mm
☀️ UV Index: 2.4
🌅 Sunrise: 07:05 AM
🌇 Sunset: 07:53 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Thu, Apr 16
Overcast
24°
/
22°
🌧️ 0% chance of rain
💧 Avg. humidity: 93%
💨 Max wind: 31 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2.6
🌅 Sunrise: 07:04 AM
🌇 Sunset: 07:53 PM
🌙 Waning Crescent
🌑 Moon: 3% lit
Fri, Apr 17
Overcast
24°
/
23°
🌧️ 0% chance of rain
💧 Avg. humidity: 93%
💨 Max wind: 37.1 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2.7
🌅 Sunrise: 07:04 AM
🌇 Sunset: 07:53 PM
🌙 New Moon
🌑 Moon: 0% lit
Best Time to Visit Port Isabel
Plan your trip to Port Isabel, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Port Isabel?
Current conditions in Port Isabel: Light rain, temperature 29°C, humidity 59%.
What is the best time to visit Port Isabel?
The best time to visit Port Isabel is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Port Isabel?
Port Isabel is located at approximately 26.1° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Port Isabel?
The wettest period in Port Isabel is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Port Isabel?
For visits to Port Isabel during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Port Isabel in?
Port Isabel is located in United States, in the state of Texas.
What are the public holidays in Port Isabel in 2026?
View the 2026 public holidays for Port Isabel on our Holidays page.
What are the GPS coordinates used for the weather forecast in Port Isabel?
The weather forecast for Port Isabel uses coordinates 26.0734, -97.2086.