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Port Isabel Tide Times

Texas · Station 8779770 · live gauge · Updated Sep 16, 2026

Port Isabel runs a mean tidal range of about 1.0 ft. This month the highest water, 2.0 ft, comes on the evening of Sep 30, and the lowest, a -0.1 ft minus tide, on the evening of Sep 5.

1.8 ftobserved 1:00 AM
Next low tide 0.3 ft at 1:36 PM
Low 0.3 ft · 1:36 PMHigh 1.8 ft · 12:18 AM
PredictedObserved
Today's tides
Low tide1:36 PM0.3 ft

Monthly tide calendar

Flood & low finder

🌊 Biggest flood tides at Port Isabel this month: Sep 5, Sep 6, Sep 7, Sep 29, Sep 30. These spring highs push water up into the grass and over the oyster rock; prime for poling into flooded marsh for tailing reds.

🔻 Negative (minus) low tides at Port Isabel this month: Sep 3, Sep 4, Sep 5, Sep 6, Sep 7. These drain the flats and expose the oyster rock, prime for sight-fishing and clamming.

September 2026
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1L:1.1H:1.2L:0.3H:1.5
2L:0.1
3🌗H:1.7L:-0.0
4🌗H:1.8L:-0.1
5🌗H:1.9L:-0.1
6🌗H:1.9L:-0.1
7H:1.9L:-0.0
8H:1.8L:0.1
9H:1.6L:1.5H:1.5L:0.3
10H:1.4L:1.2H:1.5L:0.5
11🌑H:1.3L:1.0H:1.6L:0.8
12🌑H:1.3L:0.8H:1.6
13🌑L:1.1H:1.3L:0.6H:1.6
14L:1.3H:1.3L:0.5H:1.7
15L:0.4H:1.7
16L:0.3
17H:1.8L:0.3
18🌓H:1.8L:0.3
19🌓H:1.8L:0.4
20🌓H:1.8L:0.4
21🌓H:1.8L:0.4
22H:1.7L:0.5
23H:1.6L:0.6
24H:1.6L:1.3H:1.5L:0.7
25🌕H:1.5L:1.1H:1.5L:0.9
26🌕H:1.4L:0.9H:1.6L:1.1
27🌕H:1.4L:0.7H:1.7
28🌕L:1.3H:1.4L:0.5H:1.8
29L:0.3H:1.9
30L:0.2H:2.0

Best fishing times (solunar)

Major and minor solunar windows for Port Isabel, peak feeding activity is around the moon overhead/underfoot (majors) and moonrise/moonset (minors). Score is the day's activity coefficient (0–100).

DayMajor windowsMinor windowsScore
Today 🌒4:47–6:47 PM
5:12–7:12 AM
11:30–1:30 PM
10:02–12:02 AM
68
Thu Sep 17 🌒5:38–7:38 PM
6:03–8:03 AM
12:26–2:26 PM
10:49–12:49 AM
56
Fri Sep 18 🌓6:28–8:28 PM
6:53–8:53 AM
1:18–3:18 PM
42
Sat Sep 19 🌓7:19–9:19 PM
7:44–9:44 AM
2:07–4:07 PM
11:39–1:39 AM
41
Sun Sep 20 🌓8:08–10:08 PM
8:33–10:33 AM
2:51–4:51 PM
12:33–2:33 AM
55
Mon Sep 21 🌓8:55–10:55 PM
9:20–11:20 AM
3:30–5:30 PM
1:29–3:29 AM
67
Tue Sep 22 🌔9:41–11:41 PM
10:06–12:06 PM
4:06–6:06 PM
2:25–4:25 AM
78

Predictions & observations: NOAA CO-OPS station 8779770. Solunar windows computed from the moon's position for this location. Times shown in the station's local time. Not for navigation.

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