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NOAA station 9751274

Johns Folly Bay, St. John Island tide chart

A rolling 35-day window of NOAA-predicted high and low tides, with the station's prediction method and observation capability stated plainly.

Puerto RicoReference prediction stationPrediction only

NOAA high and low predictions

Tides on Mon, Oct 12

2026-10-12 · America/Puerto_Rico

Low 2:24 AM 0.26 ftHigh 10:24 AM 1.13 ft

Station-local times. Heights in feet above MLLW. Predictions, not live measurements.

Oct 12 – Nov 15, 2026

High and low tide times

Datum: MLLW

Times use the station's local clock. Heights are feet above Mean Lower Low Water. The station-local current day is labeled and highlighted.

Mon, Oct 122026-10-12
Low 2:24 AM 0.26 ftHigh 10:24 AM 1.13 ft
Tue, Oct 132026-10-13
Low 2:54 AM 0.20 ftHigh 11:06 AM 1.13 ft
Wed, Oct 142026-10-14
Low 3:24 AM 0.16 ftHigh 11:54 AM 1.11 ft
Thu, Oct 152026-10-15
Low 3:54 AM 0.15 ftHigh 12:42 PM 1.08 ft
Fri, Oct 162026-10-16
Low 4:24 AM 0.16 ftHigh 1:30 PM 1.06 ft
Sat, Oct 172026-10-17
Low 5:06 AM 0.20 ftHigh 2:24 PM 1.05 ft
Sun, Oct 182026-10-18
Low 6:12 AM 0.27 ftHigh 3:18 PM 1.05 ft
Mon, Oct 192026-10-19
Low 7:24 AM 0.35 ftHigh 4:06 PM 1.04 ft
Tue, Oct 202026-10-20
Low 8:36 AM 0.44 ftHigh 4:48 PM 1.03 ft
Wed, Oct 212026-10-21
Low 12:24 AM 0.56 ftHigh 4:54 AM 0.67 ftLow 9:54 AM 0.53 ftHigh 5:18 PM 1 ft
Thu, Oct 222026-10-22
Low 12:30 AM 0.55 ftHigh 5:54 AM 0.80 ftLow 11:18 AM 0.59 ftHigh 5:48 PM 0.93 ft
Fri, Oct 232026-10-23
Low 12:30 AM 0.51 ftHigh 6:48 AM 0.93 ftLow 1:06 PM 0.62 ftHigh 6:12 PM 0.84 ft
Sat, Oct 242026-10-24
Low 12:36 AM 0.42 ftHigh 7:42 AM 1.05 ftLow 2:36 PM 0.61 ftHigh 6:24 PM 0.73 ft
Sun, Oct 252026-10-25
Low 1:00 AM 0.32 ftHigh 8:30 AM 1.15 ftLow 3:54 PM 0.58 ftHigh 6:24 PM 0.63 ft
Mon, Oct 262026-10-26
Low 1:24 AM 0.20 ftHigh 9:24 AM 1.23 ft
Tue, Oct 272026-10-27
Low 1:54 AM 0.09 ftHigh 10:12 AM 1.29 ft
Wed, Oct 282026-10-28
Low 2:30 AM 0.01 ftHigh 11:06 AM 1.31 ft
Thu, Oct 292026-10-29
Low 3:06 AM -0.03 ftHigh 12:00 PM 1.31 ft
Fri, Oct 302026-10-30
Low 3:54 AM -0.02 ftHigh 12:54 PM 1.28 ft
Sat, Oct 312026-10-31
Low 4:42 AM 0.05 ftHigh 1:48 PM 1.23 ft
Sun, Nov 12026-11-01
Low 5:54 AM 0.17 ftHigh 2:42 PM 1.17 ft
Mon, Nov 22026-11-02
Low 7:12 AM 0.31 ftHigh 3:30 PM 1.10 ftLow 11:18 PM 0.48 ft
Tue, Nov 32026-11-03
High 3:48 AM 0.58 ftLow 8:36 AM 0.46 ftHigh 4:12 PM 1.01 ftLow 11:30 PM 0.45 ft
Wed, Nov 42026-11-04
High 5:18 AM 0.73 ftLow 10:18 AM 0.58 ftHigh 4:48 PM 0.91 ftLow 11:48 PM 0.40 ft
Thu, Nov 52026-11-05
High 6:24 AM 0.88 ftLow 12:30 PM 0.64 ftHigh 5:12 PM 0.81 ft
Fri, Nov 62026-11-06
Low 12:06 AM 0.33 ftHigh 7:18 AM 1 ftLow 2:00 PM 0.63 ftHigh 5:30 PM 0.70 ft
Sat, Nov 72026-11-07
Low 12:18 AM 0.25 ftHigh 8:06 AM 1.08 ft
Sun, Nov 82026-11-08
Low 12:42 AM 0.17 ftHigh 8:48 AM 1.13 ft
Mon, Nov 92026-11-09
Low 1:06 AM 0.11 ftHigh 9:30 AM 1.14 ft
Tue, Nov 102026-11-10
Low 1:36 AM 0.05 ftHigh 10:06 AM 1.14 ft
Wed, Nov 112026-11-11
Low 2:06 AM 0.03 ftHigh 10:48 AM 1.13 ft
Thu, Nov 122026-11-12
Low 2:36 AM 0.02 ftHigh 11:30 AM 1.11 ft
Fri, Nov 132026-11-13
Low 3:06 AM 0.04 ftHigh 12:12 PM 1.09 ft
Sat, Nov 142026-11-14
Low 3:30 AM 0.10 ftHigh 12:54 PM 1.07 ft
Sun, Nov 152026-11-15
Low 3:54 AM 0.18 ftHigh 1:36 PM 1.06 ft

Source: NOAA CO-OPS Tide Predictions for station 9751274. Rolling 35-day window generated 2026-10-12. Predictions are not real-time observations.

Station facts

NOAA ID
9751274
Coordinates
18.3170, -64.7021
Datum
MLLW
Mean tide range
0.78 ft
Prediction type
Reference prediction station
Water-level sensor
Not listed

Geographic context

Station area

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Map showing Johns Folly Bay, St. John Island in coral and five numbered nearby tide stations.
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Coastline: U.S. Census Bureau and Natural Earth. Stations: NOAA CO-OPS. Planning context only, not for navigation.

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