Las Mareas Tide Chart
Puerto Rico · NOAA Station 9755679 · 17.928°, -66.158°
Want live wind, waves, and radar right on your chart? See it in Pathr →
This Week’s Tides for Las Mareas
High and low tide times and heights (ft, MLLW) for the week ahead.
| Low | 7:32 AM | 0.0 ft |
| High | 7:58 PM | 0.7 ft |
| Low | 7:58 AM | 0.0 ft |
| High | 8:22 PM | 0.8 ft |
| Low | 8:38 AM | -0.1 ft |
| High | 8:40 PM | 0.8 ft |
| Low | 9:32 AM | -0.1 ft |
| High | 9:02 PM | 0.8 ft |
| Low | 10:52 AM | -0.1 ft |
| High | 9:28 PM | 0.9 ft |
| Low | 11:39 AM | -0.1 ft |
| High | 9:55 PM | 0.9 ft |
| Low | 12:12 PM | -0.1 ft |
| High | 10:23 PM | 0.8 ft |
Las Mareas Tide Table — Next 30 Days
Every high and low tide for the next month at Las Mareas, with heights in feet (MLLW), the daily tidal range, and sunrise & sunset.
| Day | Sunrise | Sunset | Tides (time · ft, MLLW) | Range | |||
|---|---|---|---|---|---|---|---|
| Wed, Jul 22Today | 6:00 AM | 7:02 PM | Low7:32 AM0.0 ft | High7:58 PM0.7 ft | — | — | 0.7 ft |
| Thu, Jul 23 | 6:00 AM | 7:02 PM | Low7:58 AM0.0 ft | High8:22 PM0.8 ft | — | — | 0.8 ft |
| Fri, Jul 24 | 6:00 AM | 7:02 PM | Low8:38 AM-0.1 ft | High8:40 PM0.8 ft | — | — | 0.9 ft |
| Sat, Jul 25 | 6:01 AM | 7:01 PM | Low9:32 AM-0.1 ft | High9:02 PM0.8 ft | — | — | 0.9 ft |
| Sun, Jul 26 | 6:01 AM | 7:01 PM | Low10:52 AM-0.1 ft | High9:28 PM0.9 ft | — | — | 1.0 ft |
| Mon, Jul 27 | 6:01 AM | 7:01 PM | Low11:39 AM-0.1 ft | High9:55 PM0.9 ft | — | — | 1.0 ft |
| Tue, Jul 28 | 6:02 AM | 7:00 PM | Low12:12 PM-0.1 ft | High10:23 PM0.8 ft | — | — | 0.9 ft |
| Wed, Jul 29 | 6:02 AM | 7:00 PM | Low12:43 PM-0.1 ft | High10:48 PM0.8 ft | — | — | 0.9 ft |
| Thu, Jul 30 | 6:02 AM | 6:59 PM | Low1:13 PM0.0 ft | High11:08 PM0.7 ft | — | — | 0.7 ft |
| Fri, Jul 31 | 6:03 AM | 6:59 PM | Low1:44 PM0.0 ft | High11:03 PM0.6 ft | — | — | 0.6 ft |
| Sat, Aug 1 | 6:03 AM | 6:59 PM | Low12:37 PM0.1 ft | High10:53 PM0.5 ft | — | — | 0.4 ft |
| Sun, Aug 2 | 6:03 AM | 6:58 PM | Low7:55 AM0.2 ft | High10:37 PM0.5 ft | — | — | 0.3 ft |
| Mon, Aug 3 | 6:04 AM | 6:58 PM | Low7:46 AM0.2 ft | High6:10 PM0.5 ft | — | — | 0.3 ft |
| Tue, Aug 4 | 6:04 AM | 6:57 PM | Low7:55 AM0.1 ft | High6:07 PM0.6 ft | — | — | 0.5 ft |
| Wed, Aug 5 | 6:04 AM | 6:57 PM | Low6:25 AM0.1 ft | High6:16 PM0.7 ft | — | — | 0.6 ft |
| Thu, Aug 6 | 6:05 AM | 6:56 PM | Low6:53 AM0.0 ft | High6:48 PM0.9 ft | — | — | 0.9 ft |
| Fri, Aug 7 | 6:05 AM | 6:56 PM | Low7:35 AM-0.1 ft | High7:32 PM0.9 ft | — | — | 1.0 ft |
| Sat, Aug 8 | 6:05 AM | 6:55 PM | Low8:21 AM-0.2 ft | High8:21 PM1.0 ft | — | — | 1.2 ft |
| Sun, Aug 9 | 6:05 AM | 6:55 PM | Low9:19 AM-0.2 ft | High9:07 PM1.0 ft | — | — | 1.2 ft |
| Mon, Aug 10 | 6:06 AM | 6:54 PM | Low10:48 AM-0.2 ft | High9:44 PM1.0 ft | — | — | 1.2 ft |
| Tue, Aug 11 | 6:06 AM | 6:54 PM | Low11:46 AM-0.1 ft | High10:16 PM0.9 ft | — | — | 1.0 ft |
| Wed, Aug 12 | 6:06 AM | 6:53 PM | Low12:21 PM-0.1 ft | High10:42 PM0.7 ft | — | — | 0.8 ft |
| Thu, Aug 13 | 6:06 AM | 6:52 PM | Low12:51 PM0.0 ft | High11:00 PM0.6 ft | — | — | 0.6 ft |
| Fri, Aug 14 | 6:07 AM | 6:52 PM | Low1:17 PM0.1 ft | High10:09 PM0.5 ft | — | — | 0.4 ft |
| Sat, Aug 15 | 6:07 AM | 6:51 PM | Low12:11 PM0.3 ft | High9:28 PM0.4 ft | — | — | 0.1 ft |
| Sun, Aug 16 | 6:07 AM | 6:50 PM | Low5:40 AM0.2 ft | High8:01 PM0.4 ft | — | — | 0.2 ft |
| Mon, Aug 17 | 6:07 AM | 6:50 PM | Low4:18 AM0.2 ft | High5:45 PM0.5 ft | — | — | 0.3 ft |
| Tue, Aug 18 | 6:08 AM | 6:49 PM | Low4:35 AM0.1 ft | High6:08 PM0.6 ft | — | — | 0.5 ft |
| Wed, Aug 19 | 6:08 AM | 6:48 PM | Low5:06 AM0.0 ft | High6:33 PM0.7 ft | — | — | 0.7 ft |
| Thu, Aug 20 | 6:08 AM | 6:48 PM | Low5:51 AM0.0 ft | High6:54 PM0.7 ft | — | — | 0.7 ft |
About Las Mareas tides
Tide predictions for Las Mareas come from NOAA station 9755679 (Puerto Rico), computed from long-term harmonic analysis of observed water levels. Heights are shown in feet relative to MLLW (Mean Lower Low Water) — the same datum used on US nautical charts — so they line up directly with charted depths.
Las Mareas typically sees a mixed semidiurnal tide, with two highs and two lows of differing heights each day. Use the curve above to time a harbor entrance, a beach walk, fishing a moving tide, or clearing a shallow bar — and remember that wind and pressure can push the real water level above or below prediction. The daily tidal range in the 30-day table shows how much water moves each day: bigger ranges around the new and full moon mean stronger currents.
Frequently asked
What time is high tide in Las Mareas today?+
Today (Wednesday, July 22), high tide at Las Mareas is at 7:58 PM (0.7 ft). Heights are referenced to MLLW (Mean Lower Low Water).
What time is low tide in Las Mareas today?+
Today, low tide at Las Mareas is at 7:32 AM (0.0 ft).
What tidal datum do these Las Mareas tide heights use?+
All heights are given in feet relative to MLLW (Mean Lower Low Water), the standard NOAA chart datum for US tidal waters. A tide of 0.0 ft equals the chart datum; negative tides fall below it.
How accurate are these tide predictions?+
These are NOAA harmonic predictions — highly accurate for the astronomical tide. Real water levels can still differ with wind, barometric pressure, and storms, so always check current conditions before getting underway.
Never mistime a tide again.
Las Mareas tides, NOAA charts, live wind & waves, and smart routing — all on your phone with Pathr — free for your first two months on iOS.