Port Isabel, Texas, United States Climate Change Severity

48
High
The current climate change severity in Port Isabel is High, with a 5.2% worsening in the climate score compared to last 15 years. This suggests deteriorating conditions, with increasing negative impacts on weather patterns and environmental conditions.
Data: Jan. to Oct. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C (c)

Port Isabel Weather Condition Changes (Historic Vs 2025)

2025
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Historic
2025

Over the past 15 year(s), Port Isabel temperature has changed by around -2.1%, and has experienced notable climate changes.

Sunny
Cloudy
Rainy
Snowy
Misty
Data: Jan. to Oct. (Historical Vs 2025)

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
4715
-68.08%
cloudyCloudy
8251
-37.8%
rainyRainy
15693
-40.3%
snowySnowy
00
0%
mistyMisty
08
100%

Disclaimer: Other weather conditions not shown may affect the total day count.

Climate Change Indicators:

Over the past 15 years, Port Isabel has experienced measurable shifts in key climate parameters, contributing to the current severity score of 48 (within the High severity category). This suggests worsening climate conditions from the previous years. Here’s a breakdown of the specific changes observed:

Severity Score

48/100

High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Port Isabel experienced significant changes:

Temperature change of

-0.5 °C

Variation in annual rainfall

+3.7 %

Change in average humidity

+12.9 %

PM2.5 levels surged by

-23.3 %

Heatwave changed by

-11.5 day(s)

Coldwave changed by

+4.6 day(s)

Wind speeds changed by

+0.07 km/h

These indicators show that Port Isabel is experiencing a more volatile and extreme climate, reinforcing the need for urgent intervention to mitigate risks. As the severity score rises, focus must shift to adaptation and emergency preparedness.

Check how we calculate Climate Change Severity
Based on data from Jan. to Oct.

Port Isabel Weather Forecast 30 Days (November - December 2025)
Port Isabel, Texas, United States

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Tue. 25, Nov.
sunnySunny
Temperature Icon27°/24°
Humidity Icon81%
Wind Icon26km/h
Wed. 26, Nov.
cloudyCloudy
Temperature Icon24°/21°
Humidity Icon87%
Wind Icon35km/h
Thu. 27, Nov.
cloudyCloudy
Temperature Icon22°/21°
Humidity Icon72%
Wind Icon30km/h
Fri. 28, Nov.
patchy rain possiblePatchy rain nearby
Temperature Icon24°/22°
Humidity Icon65%
Wind Icon35km/h
Sat. 29, Nov.
patchy rain possiblePatchy rain nearby
Temperature Icon25°/23°
Humidity Icon73%
Wind Icon40km/h
Sun. 30, Nov.
patchy rain possiblePatchy rain nearby
Temperature Icon27°/25°
Humidity Icon82%
Wind Icon40km/h
Mon. 1, Dec.
patchy rain possiblePatchy rain nearby
Temperature Icon27°/25°
Humidity Icon83%
Wind Icon36km/h
Tue. 2, Dec.
patchy rain possiblePatchy rain nearby
Temperature Icon27°/25°
Humidity Icon84%
Wind Icon38km/h
Wed. 3, Dec.
patchy rain possiblePatchy rain nearby
Temperature Icon28°/25°
Humidity Icon84%
Wind Icon43km/h
Thu. 4, Dec.
patchy rain possiblePatchy rain nearby
Temperature Icon27°/25°
Humidity Icon85%
Wind Icon21km/h
Fri. 5, Dec.
moderate rainModerate rain
Temperature Icon24°/23°
Humidity Icon87%
Wind Icon27km/h
Sat. 6, Dec.
patchy rain possiblePatchy rain nearby
Temperature Icon26°/25°
Humidity Icon86%
Wind Icon33km/h
Sun. 7, Dec.
patchy rain possiblePatchy rain nearby
Temperature Icon27°/24°
Humidity Icon83%
Wind Icon21km/h
Mon. 8, Dec.
patchy rain possiblePatchy rain nearby
Temperature Icon26°/24°
Humidity Icon84%
Wind Icon30km/h
Tue. 9, Dec.
patchy rain possiblePatchy rain possible
Temperature Icon22°/18°
Humidity Icon79%
Wind Icon30km/h
Wed. 10, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/17°
Humidity Icon77%
Wind Icon36km/h
Thu. 11, Dec.
moderate rain at timesModerate rain at times
Temperature Icon21°/17°
Humidity Icon74%
Wind Icon31km/h
Fri. 12, Dec.
moderate rain at timesModerate rain at times
Temperature Icon21°/18°
Humidity Icon75%
Wind Icon28km/h
Sat. 13, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon23°/19°
Humidity Icon75%
Wind Icon30km/h
Sun. 14, Dec.
heavy rain at timesHeavy rain at times
Temperature Icon23°/19°
Humidity Icon76%
Wind Icon32km/h
Mon. 15, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon22°/19°
Humidity Icon79%
Wind Icon32km/h
Tue. 16, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon22°/18°
Humidity Icon78%
Wind Icon31km/h
Wed. 17, Dec.
heavy rain at timesHeavy rain at times
Temperature Icon20°/17°
Humidity Icon76%
Wind Icon28km/h
Thu. 18, Dec.
moderate rain at timesModerate rain at times
Temperature Icon21°/17°
Humidity Icon77%
Wind Icon29km/h
Fri. 19, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/17°
Humidity Icon78%
Wind Icon31km/h
Sat. 20, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/17°
Humidity Icon74%
Wind Icon32km/h
Sun. 21, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/18°
Humidity Icon75%
Wind Icon27km/h
Mon. 22, Dec.
patchy rain possiblePatchy rain possible
Temperature Icon22°/18°
Humidity Icon78%
Wind Icon30km/h
Tue. 23, Dec.
moderate rain at timesModerate rain at times
Temperature Icon22°/18°
Humidity Icon76%
Wind Icon34km/h
Wed. 24, Dec.
moderate rain at timesModerate rain at times
Temperature Icon21°/17°
Humidity Icon73%
Wind Icon32km/h
Thu. 25, Dec.
patchy rain possiblePatchy rain possible
Temperature Icon20°/16°
Humidity Icon73%
Wind Icon32km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onWed. 3, Dec.

27.5°C

Low will be onThu. 25, Dec.

16.2°C

HumidityHumidity

High will be onWed. 26, Nov.

87%

Low will be onFri. 28, Nov.

65%

Wind SpeedWind Speed

High will be onWed. 3, Dec.

42.8km/h

Low will be onSun. 7, Dec.

20.9km/h

PrecipitationPrecipitation

High will be onFri. 5, Dec.

7.1mm

Low will be onWed. 3, Dec.

0.07mm

Ultraviolet IndexUV

High will be onSun. 30, Nov.

6

Low will be onTue. 9, Dec.

4

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