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In December 2026, the highest tide in Port Isabel is on December 23 at 6:15 PM (1.8 ft) and the lowest on December 24 at 9:02 AM (−0.7 ft). The biggest range of the month, 2.5 ft, is on December 23; the smallest, 0.4 ft, on December 2.
Which days in December have the biggest tides in Port Isabel?
Range of each day, coloured by spring and neap tides
Calendar
High and low tides in Port Isabel, December 2026
🖨 Print or PDF| Day | High ▲ and low ▼ tide | Range | Moon | Sun |
|---|---|---|---|---|
| ▼4:51 AM 1.0 ft▲7:14 AM 1.0 ft▼3:08 PM 0.4 ft▲10:31 PM 1.1 ft | 0.7 | 7:00 AM · 5:38 PM | ||
| ▼4:56 AM 0.7 ft▲10:59 AM 1.0 ft▼4:38 PM 0.7 ft▲10:16 PM 1.0 ft | 0.4 | 7:01 AM · 5:38 PM | ||
| ▼5:26 AM 0.4 ft▲1:19 PM 1.1 ft▼6:54 PM 1.0 ft▲9:41 PM 1.0 ft | 0.8 | 7:01 AM · 5:38 PM | ||
| ▼6:01 AM 0.1 ft▲2:51 PM 1.3 ft | 1.2 | 7:02 AM · 5:38 PM | ||
| ▼6:36 AM −0.1 ft▲3:56 PM 1.5 ft | 1.6 | 7:03 AM · 5:38 PM | ||
| ▼7:11 AM −0.2 ft▲4:48 PM 1.6 ft | 1.7 | 7:04 AM · 5:38 PM | ||
| ▼7:46 AM −0.2 ft▲5:35 PM 1.6 ft | 1.9 | 7:04 AM · 5:38 PM | ||
| ▼8:22 AM −0.3 ft▲6:20 PM 1.6 ft | 1.9 | 7:05 AM · 5:39 PM | ||
| ▼8:58 AM −0.3 ft▲7:04 PM 1.6 ft | 1.9 | 7:06 AM · 5:39 PM | ||
| ▼9:35 AM −0.3 ft▲7:48 PM 1.6 ft | 1.8 | 7:06 AM · 5:39 PM | ||
| ▼10:12 AM −0.2 ft▲8:26 PM 1.5 ft | 1.7 | 7:07 AM · 5:39 PM | ||
| ▼10:49 AM −0.1 ft▲8:54 PM 1.4 ft | 1.6 | 7:08 AM · 5:39 PM | ||
| ▼11:25 AM 0.0 ft▲9:10 PM 1.4 ft | 1.4 | 7:08 AM · 5:40 PM | ||
| ▼12:01 PM 0.1 ft▲9:15 PM 1.3 ft | 1.2 | 7:09 AM · 5:40 PM | ||
| ▼12:38 PM 0.3 ft▲9:14 PM 1.2 ft | 0.9 | 7:09 AM · 5:40 PM | ||
| ▼1:17 PM 0.5 ft▲9:08 PM 1.1 ft | 0.7 | 7:10 AM · 5:41 PM | ||
| ▼4:27 AM 0.6 ft▲10:13 AM 0.8 ft▼2:07 PM 0.8 ft▲8:55 PM 1.1 ft | 0.5 | 7:10 AM · 5:41 PM | ||
| ▼4:37 AM 0.4 ft▲12:56 PM 1.0 ft▼3:37 PM 1.0 ft▲8:25 PM 1.1 ft | 0.7 | 7:11 AM · 5:42 PM | ||
| ▼5:04 AM 0.1 ft▲2:24 PM 1.3 ft | 1.2 | 7:12 AM · 5:42 PM | ||
| ▼5:41 AM −0.1 ft▲3:23 PM 1.5 ft | 1.7 | 7:12 AM · 5:42 PM | ||
| ▼6:25 AM −0.4 ft▲4:20 PM 1.7 ft | 2.1 | 7:13 AM · 5:43 PM | ||
| ▼7:15 AM −0.6 ft▲5:17 PM 1.8 ft | 2.4 | 7:13 AM · 5:43 PM | ||
| ▼8:08 AM −0.7 ft▲6:15 PM 1.8 ft | 2.5 | 7:14 AM · 5:44 PM | ||
| ▼9:02 AM −0.7 ft▲7:10 PM 1.8 ft | 2.5 | 7:14 AM · 5:44 PM | ||
| ▼9:58 AM −0.7 ft▲7:55 PM 1.7 ft | 2.3 | 7:14 AM · 5:45 PM | ||
| ▼10:52 AM −0.5 ft▲8:24 PM 1.5 ft | 2.0 | 7:15 AM · 5:45 PM | ||
| ▼11:47 AM −0.2 ft▲8:36 PM 1.3 ft | 1.6 | 7:15 AM · 5:46 PM | ||
| ▼1:33 AM 1.1 ft▲3:59 AM 1.2 ft▼12:41 PM 0.1 ft▲8:37 PM 1.2 ft | 1.1 | 7:16 AM · 5:47 PM | ||
| ▼2:11 AM 0.9 ft▲6:28 AM 1.0 ft▼1:37 PM 0.5 ft▲8:28 PM 1.0 ft | 0.6 | 7:16 AM · 5:47 PM | ||
| ▼2:58 AM 0.6 ft▲9:33 AM 1.0 ft▼2:47 PM 0.8 ft▲8:07 PM 1.0 ft | 0.4 | 7:16 AM · 5:48 PM | ||
| ▼3:46 AM 0.3 ft▲12:30 PM 1.1 ft▼5:32 PM 1.1 ft▲6:38 PM 1.1 ft | 0.8 | 7:17 AM · 5:48 PM |
Frequently asked questions
When is the highest tide in Port Isabel in December 2026?
On December 23 at 6:15 PM, 1.8 ft above mean lower low water (MLLW).
When is the lowest tide in Port Isabel in December 2026?
On December 24 at 9:02 AM, −0.7 ft.
Which days in December 2026 have spring tides in Port Isabel?
December 7–10 and December 21–26.
Where does this data come from?
These tides are an astronomical prediction computed by the Tides Pro engine with tide models and harmonic constants, fitted here to the official NOAA predictions for this station. How we validate them is in our methodology. Heights are above mean lower low water (MLLW). They do not include wind or air pressure: for navigation, use official publications.
And right now?
See today’s tide in Port Isabel or carry it on your iPhone.