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Arecibo Tide Times

Puerto Rico · Station 9757809 · Updated Aug 6, 2026

Arecibo runs a mean tidal range of about 1.2 ft. This month the highest water, 2.2 ft, comes on the evening of Aug 11, and the lowest, a -0.2 ft minus tide, on the morning of Aug 9.

Nearest gauge measuring live water level: Mayaguez (9759394), about 35 mi away — high and low tides here run on average about 23 min earlier.

Predictedno live gauge
Next low tide 0.7 ft at 9:21 PM
High 1.1 ft · 12:54 AMLow -0.1 ft · 7:25 AMHigh 1.9 ft · 2:47 PMLow 0.7 ft · 9:21 PMHigh 1.0 ft · 1:42 AM
Predicted
Today's tides
High tide12:54 AM1.1 ft
Low tide7:25 AM-0.1 ft
High tide2:47 PM1.9 ft
Low tide9:21 PM0.7 ft

Monthly tide calendar

Flood & low finder

🌊 Biggest flood tides at Arecibo this month: Aug 8, Aug 9, Aug 10, Aug 11, Aug 12, Aug 13. 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 Arecibo this month: Aug 6, Aug 7, Aug 8, Aug 9, Aug 10, Aug 11, Aug 12. These drain the flats and expose the oyster rock — prime for sight-fishing and clamming.

August 2026
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1L:0.5H:1.3L:0.4H:1.8
2L:0.4H:1.4L:0.5H:1.6
3L:0.3H:1.6L:0.6H:1.5
4L:0.2H:1.7L:0.7
5🌗H:1.3L:0.0H:1.8L:0.7
6🌗H:1.1L:-0.1H:1.9L:0.7
7🌗H:1.0L:-0.2H:1.9L:0.7
8H:1.0L:-0.2H:2.0L:0.7
9H:0.9L:-0.2H:2.1
10L:0.7H:1.0L:-0.2H:2.1
11L:0.6H:1.1L:-0.2H:2.2
12🌑L:0.5H:1.2L:-0.1H:2.1
13🌑L:0.5H:1.4L:0.0H:2.0
14🌑L:0.4H:1.6L:0.2H:1.9
15🌑L:0.3H:1.7L:0.3H:1.7
16L:0.2H:1.8L:0.4H:1.5
17L:0.2H:1.8L:0.6H:1.3
18L:0.1H:1.8L:0.6
19🌓H:1.1L:0.1H:1.7L:0.7
20🌓H:1.0L:0.1H:1.7L:0.7
21🌓H:0.9L:0.1H:1.7L:0.7
22🌓H:0.9L:0.1H:1.7L:0.7
23H:0.9L:0.1H:1.7
24L:0.7H:0.9L:0.2H:1.8
25L:0.7H:1.0L:0.2H:1.8
26L:0.7H:1.1L:0.2H:1.9
27🌕L:0.6H:1.3L:0.3H:1.9
28🌕L:0.6H:1.4L:0.4H:1.8
29🌕L:0.5H:1.6L:0.4H:1.7
30L:0.4H:1.7L:0.5H:1.6
31L:0.3H:1.8L:0.5H:1.4

Best fishing times (solunar)

Major and minor solunar windows for Arecibo — 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 🌗5:32–7:32 AM
5:57–7:57 PM		—
12:21–2:21 PM		40
Fri Aug 7 🌗6:32–8:32 AM
6:57–8:57 PM		11:39–1:39 AM
1:28–3:28 PM		53
Sat Aug 8 🌘7:35–9:35 AM
8:00–10:00 PM		12:37–2:37 AM
2:34–4:34 PM		66
Sun Aug 9 🌘8:40–10:40 AM
9:05–11:05 PM		1:41–3:41 AM
3:37–5:37 PM		76
Mon Aug 10 🌘9:43–11:43 AM
10:08–12:08 AM		2:48–4:48 AM
4:35–6:35 PM		85
Tue Aug 11 🌘10:42–12:42 PM
11:07–1:07 AM		3:55–5:55 AM
5:25–7:25 PM		92
Wed Aug 12 🌑11:36–1:36 PM
12:01–2:01 AM		4:58–6:58 AM
6:10–8:10 PM		95

Predictions & observations: NOAA CO-OPS station 9757809. 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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