Beach forecast for Port Isabel
Today, Wednesday, October 28, 2026 · local time (CDT) · Texas, United States Today, Wed, Oct 28 · CDT- Swimming
- Calm · 2.3 ft
- Water
- 80 °F · warm
- Max UV
- 7 · SPF 50
- Low tide
- 11:13 am
Today, Wednesday, October 28, it's a perfect beach day in Port Isabel (9/10). The best hours are from 9:00 am to 2:00 pm: sunshine, beach weather, little wind, a calm sea, water at 80 °F and low tide at 11:13 am. The best day this week is Saturday, October 31, at 10/10.
Beach forecast for the next 7 days
| Day | Rating | Best hours | Swimming | Water | UV |
|---|---|---|---|---|---|
| Today | 9Perfect beach day | 9:00 am–2:00 pm3:00–5:00 pm | Calm · 2.3 ft | 80 °F | 7 |
| Thu 29 | 8Good beach day | 9:00–11:00 am2:00–6:00 pm | Calm · 2.5 ft | 80 °F | 7 |
| Fri 30 | 9Perfect beach day | 9:00 am–1:00 pm4:00–6:00 pm | Calm · 2.3 ft | 80 °F | 7 |
| Sat 31 | 10Perfect beach day | 1:00–6:00 pm9:00 am–12:00 pm | Calm · 1.8 ft | 80 °F | 7 |
| Sun 1 | 10Perfect beach day | 2:00–5:00 pm8:00 am–1:00 pm | Calm · 1.4 ft | 81 °F | 7 |
| Mon 2 | 8Good beach day | 8:00–11:00 am | Calm · 1.6 ft | 81 °F | — |
| Tue 3 | 5Fair beach day | 11:00 am–4:00 pm | Use care · 2.9 ft | 80 °F | — |
Each rating comes from sun, temperature, rain, wind, waves, UV, water temperature and, where there is one, the tide.
Today in detail
9 good hours- Mostly sunny
- Feels like 91 °F: beach weather
- Onshore breeze (8 mph)
- Calm for swimming: 2.3 ft waves
- UV 7 (high): SPF 50 sunscreen
- Water at 80 °F (warm)
Today, hour by hour
- Swimming Calm · 2.3 ft
2.3 ft waves: calm for swimming. Low rip current risk. Always follow the lifeguard's flags.
- Water 80 °F
Warm: very pleasant.
- Sun & sunscreen UV 7 · SPF 50
Max UV 7 (high): SPF 50 sunscreen, reapplied every 2 hours.
- Wind 10 mph
Onshore breeze (10 mph).
- Tide & sand 11:13 am
Low tide at 11:13 am: that's when there's the most sand. High tide at 9:07 pm.
The best window, 9:00 am to 2:00 pm, brings sunshine, beach weather, little wind, a calm sea, water at 80 °F and low tide at 11:13 am. 3:00 pm to 5:00 pm is good too, with beach weather, little wind, a calm sea and water at 81 °F.
We don't have data on jellyfish, sargassum or beach closures: ask the lifeguard or check with the local beach authority.
Today, hour by hour
| Time | Rating | Sky | Feels like | Wind | Waves | UV |
|---|---|---|---|---|---|---|
| 9:00 am | 9 | Mainly clear | 85 °F | 2 mph | 2.3 ft | 1 |
| 10:00 am | 9 | Mainly clear | 87 °F | 7 mph | 2.3 ft | 3 |
| 11:00 am | 10 | Mainly clear | 87 °F | 8 mph | 2.3 ft | 5 |
| 12:00 pm | 9 | Mainly clear | 88 °F | 7 mph | 2.3 ft | 6 |
| 1:00 pm | 9 | Mainly clear | 91 °F | 8 mph | 2.3 ft | 7 |
| 2:00 pm | 8 | Mainly clear | 91 °F | 9 mph | 2.3 ft | 6 |
| 3:00 pm | 8 | Partly cloudy | 91 °F | 9 mph | 2.3 ft | 5 |
| 4:00 pm | 8 | Partly cloudy | 89 °F | 10 mph | 2.3 ft | 3 |
| 5:00 pm | 7 | Partly cloudy | 88 °F | 10 mph | 2.3 ft | 1 |
Beach hours only: from one hour after sunrise to half an hour before sunset.
Beaches near Port Isabel
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Isla Blanca Beach 3.3 mi · E
- Parking
- Aurora 19 Public Beach Access 4.3 mi · NE
- Restrooms
- Parking
- Boca Chica Beach 4.9 mi · SE
- Parking
Water quality: check the official beach advisories for Texas (Texas Beach Watch).
Named beaches within 6.2 mi, nearest first. Amenities from OpenStreetMap: some may be missing or out of date. View on OpenStreetMap · Add or fix on OpenStreetMap
Beaches and amenities: © OpenStreetMap contributors (ODbL).
Webcams near Port Isabel
Webcams provided by windy.com — add a webcam
How we rate a beach day
We rate every beach hour from 0 to 10 with simple, fixed rules:
- Adds: sunshine (up to 3 points, fewer with more clouds), warmth (up to 4, from the feels-like temperature; ideal between 81 °F and 91 °F), a calm sea (1), water at 70 °F or warmer (1; from 64 °F, half) and low or mid tide (1: more sand). Anything without data is left out and the rest is scaled to 10.
- Takes away: cold (feels-like below 64 °F, 1 to 4 points), rain (half a point if likely, up to 6 if it rains; thunderstorms, 8), wind from force 4, about 12 mph (1 to 6 points; half a point more if offshore, which blows inflatables out to sea, or onshore, which churns the water), waves (1 to swim with care, 4 if dangerous, 1 more for high rip current risk), very high UV (half a point; extreme, 1), water below 59 °F (1) and spring high tides (1: little sand left).
- Swimming: calm, use care (waves from 2.6 ft, or long swell) or dangerous (from 6.6 ft, or 4.9 ft with a long period), based on how much of the wave reaches this shore given the way it faces. In the U.S., today's and tomorrow's rip current risk comes from the National Weather Service surf zone forecast when it issues one; otherwise we estimate it from the waves.
- Best windows: runs of 2 to 5 hours rated 4 or more and close to the best hour, at least one hour apart.
- Day rating: the average of the best window; a 2-hour window keeps 85% of it and a 3-hour window 95%.
Today, in the best window: sun 2.2 of 3, warmth 4 of 4, calm sea 1 of 1, water 1 of 1 and tide 1 of 1.
It's a guide, not a guarantee: weather changes and every beach is different. Always follow the lifeguard's flags.
Questions about the beach in Port Isabel
Is it a beach day in Port Isabel today?
A perfect beach day: 9/10. Best from 9:00 am to 2:00 pm, with sunshine, beach weather, little wind, a calm sea, water at 80 °F and low tide at 11:13 am.
What are the swimming conditions in Port Isabel today?
2.3 ft waves: calm for swimming. Low rip current risk. Always follow the lifeguard's flags.
How warm is the water in Port Isabel?
About 80 °F today: warm. That's the sea surface temperature offshore; it can differ a little at the shoreline.
How much sun protection do I need in Port Isabel today?
UV reaches 7 (high): SPF 50 sunscreen, sunglasses and a hat.
When is low tide in Port Isabel?
Today low tide is at 11:13 am: that's when there's the most sand. High tide is at 9:07 pm.
What about tomorrow? Will it be a beach day in Port Isabel?
Tomorrow, Thursday, October 29: a good beach day (8/10), best from 9:00 am to 11:00 am.
What beaches are near Port Isabel?
Isla Blanca Beach (3.3 mi), Aurora 19 Public Beach Access (4.3 mi) and Boca Chica Beach (4.9 mi). See below for amenities and water quality.
Are there jellyfish or sargassum today?
We don't know: there's no open data on jellyfish, sargassum or closures for each beach. Ask the lifeguard, check the flags or the local beach authority's website.
How is the rating worked out?
From the hourly forecast: sun and clouds, feels-like temperature, rain, wind (and whether it blows onshore or offshore), waves and their period, UV, water temperature and, where there is one, the tide. Each factor adds or takes away a fixed number of points and the rating sums them up out of 10.
More about Port Isabel today
Learn more
Our own calculation, using the Open-Meteo forecast (ECMWF, NOAA GFS, Météo-France, Copernicus Marine and CAMS, CC BY 4.0), the tide from Port Isabel (NOAA) and the sun from astronomy-engine. Slackwater database (https://github.com/openwatersio/slackwater-database)