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Surf Forecasts:

Port Isabel surfForecast / Texas / USA

information circle12 Day Weather and Surf, issued 12 am Thursday 18 Sep 2025 CDT
Forecast update in hr  min  s Forecast update imminent
Port Isabel surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Port Isabel sea temperature is
30.5° C
 (Which is 1.9°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Port Isabel this week:

The most powerful waves expected at Port Isabel in the next 12 days are 1.2m 6s and forecast to arrive on Thursday (Sep 18) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (CDT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 7AM (Thu 18th Sep)4ft (1.2m) 6s

Table - best surf conditions forecast for Port Isabel over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Heavy rain (total 31mm), heaviest during Thu morning. Warm (max 29°C on Sat afternoon, min 27°C on Thu night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 3mm), mostly falling on Sat night. Warm (max 29°C on Sun morning, min 28°C on Sat night). Wind will be generally light.

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wed
24
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.3
E
1.1
E
1
E
1
E
0.6
E
0.4
ESE
0.5
E
0.6
ESE
0.8
ESE
0.6
ESE
0.6
ESE
0.7
ESE
0.7
ESE
0.7
ESE
0.8
ESE
0.6
E
0.6
E
0.8
SE
0.7
SE
0.4
E
0.3
E
Period(s) (?)666555566666666654455
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1198362541791226422526333433372420221685
Wind
(km/h)
25
ESE
15
ESE
25
E
15
ESE
15
E
20
E
15
ESE
15
SE
20
SE
20
SE
20
SE
20
SE
20
SE
20
SSE
20
SE
25
SSE
25
SSE
25
SSE
20
SSE
20
SE
20
SE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
ononononononcross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		crosscross-
on		crosscross-
on		cross-
on
High Tide
/ height (m)
4:29AM
0.54
4:35AM 1:00PM
0.50 0.48
4:33AM
0.46
2:37PM
0.49
4:24AM
0.43
3:57PM
0.50
4:09AM
0.40
5:09PM
0.50
3:46AM
0.38
6:17PM
0.49
3:05AM
0.38
Low Tide
/ height (m)
8:03PM
0.08
9:01AM
0.39
8:59PM
0.13
9:10AM
0.34
9:50PM
0.19
9:33AM
0.28
10:40PM
0.25
10:00AM
0.22
11:33PM
0.29
10:29AM
0.17
12:38AM
0.32
10:58AM
0.12
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wed
24
Sunrise-7:15--7:15--7:16--7:16--7:16--7:16--7:16-
Sunset--7:29--7:28--7:27--7:25--7:24--7:23--7:22
thunderstorm
thunderstorm
thunderstorm
rain showers
thunderstorm
thunderstorm
rain showers
thunderstorm
clear
rain showers
thunderstorm
clear
clear
thunderstorm
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
1111212121-11--1-------
Temp. °C282828282828282829282929282929282929282930
Feels °C (?)293028283030303030293030293030293029293132
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for Texas

  1. weather stationWind Update The cross-on wind has turned onshore at Port Isabel (moderate winds from the ESE at BUOY-PCGT2 6 km from Port Isabel). A 1.2m windswell from the E

    59 minutes ago Port Isabel
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Actual: 59 min ago

21 km/h
ESE
Onshore
Please reload the page to see if there are any updates.

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Port Isabel surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Port Isabel at:
surf-forecast.com

Information about the Port Isabel Surf forecast

The above surf forecast table for Port Isabel provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Port Isabel can be found by selecting the local surf guide option on the grey menu. Our Port Isabel surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Port Isabel) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Port Isabel may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Port Isabel is 40 km (25 miles) from the city of Brownsville. If you plan a vacation in Texas, look for hotels and other accommodation in Brownsville. Brownsville has rooms for a wide range of budgets as well as car hire and transport links.

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