San Juan Tides Today
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San Juan runs a mean tidal range of about 1.1 ft. This month the highest water, 2.1 ft, comes on the morning of Nov 25, and the lowest, a -0.3 ft minus tide, on the morning of Nov 26.
| High tide | 5:55 AM | 1.5 ft |
| Low tide | 12:06 PM | 0.5 ft |
| High tide | 5:57 PM | 1.4 ft |
Today on the water at San Juan
Today at San Juan: high tide at 5:55 AM (1.5 ft) and 5:57 PM (1.4 ft), low tide at 12:06 PM (0.5 ft). The National Weather Service forecast for today is showers and thunderstorms with WNW winds 5 mph, 86°F. The water at the gauge reads 86°F. Sunrise is at 6:25 AM and sunset at 5:50 PM.
| Period | Forecast | Wind | Temp |
|---|---|---|---|
| Today | Showers And Thunderstorms | WNW 5 mph | 86°F |
| Tonight | Scattered Showers And Thunderstorms | SW 1 to 5 mph | 78°F |
Forecast: National Weather Service point forecast for this location.
Where San Juan is
San Juan sits at 18.4589° N, 66.1164° W on the northeastern Caribbean, at San Juan, PR, in San Juan. The station here is a live gauge in NOAA's National Water Level Observation Network, the reference network the rest of the coast's tide predictions are tied to. It has been in NOAA's records since 1962. The nearest weather station is San Juan, La Puntilla, San Juan Bay, PR, a shore station reporting wind and, at most sites, water temperature, right at this station.
The tide at San Juan
San Juan has a mixed tide: two highs and two lows a day, but of unequal size, so one low each day drains a little lower than the other. This month's predictions average 1.9 high tides a day here. The mean range from lower low to higher high is 1.6 ft, and 1.1 ft between the average high and the average low, a small tide. On an average day the higher high tops the lower high by 0.3 ft and the lower low sits 0.2 ft below the other low. For the water around it: Tides around Puerto Rico and the Virgin Islands are small, about a foot, and lean diurnal, so one high and one low a day is common.
About this station
- High tide reaches San Juan about 0.6 hours after the moon passes overhead. That lag is local, which is why high water does not line up with the moon.
- Highest water on record: 4.3 ft on Sep 18, 1989.
- Lowest on record: -1.1 ft on Dec 20, 1968.
Datum and source
Heights on this page are feet above mean lower low water (MLLW), the zero NOAA's nautical charts use for soundings. A predicted 0.0 ft low is the average of the lower low each day; a minus tide is water below chart datum, and a 2 ft high means 2 ft more water than the chart shows. NOAA fixes MLLW at San Juan from the 1983-2001 National Tidal Datum Epoch; mean higher high water is 1.6 ft above it and mean sea level 0.8 ft. The land survey datum PRVD02, the zero on topographic maps and flood maps, is 0.8 ft above MLLW here, so a water level on this page converts to PRVD02 by subtracting that amount. Source: NOAA CO-OPS station 9755371, a National Water Level Observation Network gauge, established 1962. The tide times and heights are NOAA's official harmonic predictions for this station; TidalMap republishes them daily and does not alter them. The observed line is the gauge's own six-minute water level feed.
Tide stations near San Juan
- Boca de Cangrejos: 8.2 mi, tides about 15 min later
- Luquillo: 25.5 mi, tides about 34 min earlier
- Naguabo: 32.5 mi, tides about 10 min later
- Palmas del Mar: 33.7 mi, tides about 27 min earlier
- Las Mareas: 36.8 mi, tides about 20 min later
TidalMapMonthly tide calendar
🌊 Biggest flood tides of the month at San Juan this month: Nov 23, Nov 24, Nov 25, Nov 26, Nov 27, Nov 28. These spring highs run the highest water of the month.
🔻 Lowest tides of the month at San Juan this month: Nov 23, Nov 24, Nov 25, Nov 26, Nov 27, Nov 28, Nov 29. These minus lows are when flats and bars dry out.
Best fishing times (solunar)
Major and minor solunar windows for San Juan, peak feeding activity is around the moon overhead/underfoot (majors) and moonrise/moonset (minors). Score is the day's activity coefficient (0–100).
| Day | Major windows | Minor windows | Score |
|---|---|---|---|
| Today 🌘 | 8:23–10:23 AM 8:48–10:48 PM | 2:12–4:12 AM 2:29–4:29 PM | 73 |
| Fri Nov 6 🌘 | 9:08–11:08 AM 9:33–11:33 PM | 3:06–5:06 AM 3:05–5:05 PM | 83 |
| Sat Nov 7 🌘 | 9:53–11:53 AM 10:18–12:18 AM | 4:00–6:00 AM 3:42–5:42 PM | 91 |
| Sun Nov 8 🌘 | 10:39–12:39 PM 11:04–1:04 AM | 4:53–6:53 AM 4:21–6:21 PM | 97 |
| Mon Nov 9 🌑 | 11:27–1:27 PM 11:52–1:52 AM | 5:48–7:48 AM 5:03–7:03 PM | 99 |
| Tue Nov 10 🌑 | 12:16–2:16 PM 12:41–2:41 AM | 6:42–8:42 AM 5:49–7:49 PM | 99 |
| Wed Nov 11 🌑 | 1:07–3:07 PM 1:32–3:32 AM | 7:36–9:36 AM 6:38–8:38 PM | 95 |
Predictions & observations: NOAA CO-OPS station 9755371. 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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