Port Isabel, TX Weather & Climate Normals
Port Isabel's real weather, in one number
Port Isabel, TX scores 57/100 on this site's reading of NOAA's own 30-year normals: strongly seasonal. Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. 5 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
Port Isabel's hottest and coldest months
Port Isabel's hottest month is Aug, averaging 85°F; its coldest is Jan, averaging 61°F, a 24.3°F swing across the year, a middling gap by national standards.
Port Isabel's weather across the year
| Month | Avg high | Avg low | Precip |
|---|---|---|---|
| Jan | 70°F | 52°F | 0.96in |
| Feb | 74°F | 56°F | 1.16in |
| Mar | 78°F | 62°F | 1.11in |
| Apr | 83°F | 68°F | 1.28in |
| May | 88°F | 73°F | 2.13in |
| Jun | 92°F | 77°F | 2.68in |
| Jul | 92°F | 78°F | 1.44in |
| Aug | 93°F | 77°F | 1.33in |
| Sep | 90°F | 75°F | 5.26in |
| Oct | 85°F | 69°F | 2.73in |
| Nov | 78°F | 61°F | 1.91in |
| Dec | 72°F | 54°F | 1.26in |
Jan, Feb, Mar, Nov, and Dec are the best time to see Port Isabel at its mildest; the rest of the year, plan around Aug's heat.
Rain and snow in Port Isabel
Over a typical year, Port Isabel sees about 23.25in of precipitation a year across roughly 73 days with measurable rain or snow. That station has no snowfall reading, so none is shown rather than assumed.
Where Port Isabel ranks
Port Isabel ranks 717 of 4876 US cities in this dataset for comfort score, and 70 of 384 within TX. About 5,210 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from Port Isabel Cameron Ap, TX US, 7.3 miles from Port Isabel, not a prediction for any specific day.
More on how this is worked out
Why some cities show no snow or rain figure · How the comfort score is calculated