San Juan tides today
- Tide now -0.3 ft ↓ falling · low 8:53 am (-0.3 ft)
- Best time to fish 7:50–9:50 am good day · 7/10
- Beach day 12:00–5:00 pm Fair beach day · 6/10
- Waves · water 3.8 ft · 86 °F slight · 7.4 s from the north
- Wind · air 2 mph · 81 °F from the ENE, gusts 11 · partly cloudy
- Sun 5:56 am–5:28 pm 11 h 32 min of daylight
- Moon 88% · 8:11 pm waning gibbous · rises at 8:11 pm
- Best time to dive 8:40–11:40 am good day · 8/10
Today in San Juan there is high tide at 10:06 pm (2.5 ft) and low tide at 8:53 am. Tide coefficient 110. Right now the tide is falling toward the low tide at 8:53 am. The sun rises at 5:56 am and sets at 5:28 pm: 11 h 32 min of daylight. The moon is 88% illuminated (waning gibbous) and rises at 8:11 pm. Major solunar periods run from 1:02 am to 3:02 am and from 1:34 pm to 3:34 pm. The next spring tides arrive from October 27 to 29. The sea is slight, with 3.8 ft waves. There's a light air from the east-northeast (2 mph). Partly cloudy, 81 °F.
Fishing in San Juan today
Best time to fish
Solunar activity today: medium- Low tide at 8:53 am
- Minor period 8:27–9:27 am (moonset)
- Steady pressure (30.00 inHg), almost no wind and some swell (3.9 ft waves) to stir the water
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 110 (big spring tides)
Your day at a glance
The best window, 7:50 am to 9:50 am, combines the 8:53 am low tide, moonset and some swell. Also good from 1:30 pm to 3:30 pm, with a major period, a light onshore breeze and some swell. Also good from 9:30 pm to 11:10 pm, with the 10:06 pm high tide and some swell.
Beach day in San Juan
Is it a beach day?
2 good hours- Sunny
- Onshore breeze (5 mph)
- Water at 86 °F (very warm)
- Feels like 102 °F: extreme heat: stay out of the midday sun
- Swim with care: 4.7 ft waves every 7 s; moderate rip current risk
- UV 9 (very high): SPF 50 sunscreen
Today, hour by hour
- Swimming Use care · 4.7 ft
4.7 ft waves every 7 s: swim with care and stay where you can stand. Moderate rip current risk. Always follow the lifeguard's flags.
- Water 86 °F
Very warm: barely refreshing.
- Sun & sunscreen UV 9 · SPF 50
Max UV 9 (very high): SPF 50 sunscreen, reapplied every 2 hours. Seek shade 11:00 am–1:00 pm (very high UV).
- Wind 5 mph
Onshore breeze (5 mph).
- Tide & sand 8:53 am
Low tide at 8:53 am: that's when there's the most sand. High tide at 10:06 pm.
The best window, 12:00 pm to 5:00 pm, brings sunshine, little wind and water at 86 °F, though with intense heat, some waves and very high UV. 7:00 am to 11:00 am can also work, with little wind, water at 86 °F and low tide at 8:53 am, though with intense heat and some waves.
We don't have data on jellyfish, sargassum or beach closures: ask the lifeguard or check with the local beach authority. How it works · The next 7 days
Beaches near San Juan
We don't know of any named beaches within 6.2 mi of San Juan.
Missing one? Beaches come from OpenStreetMap: you can add it there. Add or fix on OpenStreetMap
Beaches and amenities: © OpenStreetMap contributors (ODbL).
Webcams near San Juan
Webcams provided by windy.com — add a webcam
Tides in San Juan
Today's high and low tides
- ▼ Next low tide 8:53 am -0.3 ft
- ▲ High tide 10:06 pm 2.5 ft · coef. 110
↓ Falling The tide is falling. 1 h 22 min to low tide at 8:53 am.
Tide coefficient 110 for the 10:06 pm high tide. Big spring tides. The water rises and falls 2.8 ft between the highest high and the lowest low: a large range for this place. 70 is an average tide here; 90 and above means spring tides; below 45, neap tides. What is the tide coefficient?
2026 extremes: the highest tide of the year is on July 15 (3.3 ft) and the lowest, on January 4 (-1.2 ft).
Diurnal: one high and one low tide a day most days.
Heights above mean lower low water (MLLW), the zero of US nautical charts. Astronomical prediction: wind and air pressure can raise or lower the water by a few inches, and more in a storm. Not for navigation. MLLW
Tide coefficient and range in October
The biggest tides of the month come from October 30 to 31 (coefficient 115, 3.0 ft range). The smallest, on October 10 (coefficient 26, 1.1 ft).
Tide and solunar table · this week
| Day | Sun | Tide 1 | Tide 2 | Coef. | Moon | Major periods | Activity |
|---|---|---|---|---|---|---|---|
| Today, Thu 29 | 5:56 am · 5:28 pm | Low tide 8:53 am · -0.3 ft | High tide 10:06 pm · 2.5 ft | Coef. 110 | 88% | Major periods 1:02 am · 1:34 pm | Medium |
| Fri 30 | 5:56 am · 5:27 pm | Low tide 10:04 am · -0.5 ft | High tide 11:12 pm · 2.5 ft | Coef. 115 | 79% | Major periods 2:07 am · 2:39 pm | Medium |
| Sat 31 | 5:57 am · 5:27 pm | Low tide 10:52 am · -0.6 ft | — | Coef. 115 | 69% | Major periods 3:10 am · 3:41 pm | Medium |
| Sun 1 | 5:57 am · 5:26 pm | High tide 12:21 am · 2.4 ft | Low tide 11:32 am · -0.6 ft | Coef. 113 | 58% | Major periods 4:11 am · 4:39 pm | Medium |
| Mon 2 | 5:57 am · 5:26 pm | High tide 1:30 am · 2.3 ft | Low tide 12:04 pm · -0.4 ft | Coef. 104 | Last quarter | Major periods 5:06 am · 5:32 pm | Medium |
| Tue 3 | 5:58 am · 5:26 pm | High tide 2:38 am · 2.1 ft | Low tide 12:24 pm · -0.2 ft | Coef. 89 | 36% | Major periods 5:57 am · 6:21 pm | Medium |
| Wed 4 | 5:58 am · 5:25 pm | High tide 3:44 am · 1.9 ft | Low tide 12:28 pm · 0.1 ft | Coef. 69 | 26% | Major periods 6:44 am · 7:07 pm | Low |
▲ high tide · ▼ low tide · heights above MLLW. Major periods: start time; they last 2 hours. Activity: based on the moon phase and the solunar periods.
Where this tide comes from
San Juan has no station of its own, so we use the tide at Currimao (TICON-4), 19 mi away. On the open coast the difference is usually a few minutes and inches; inside estuaries, rivers and enclosed bays it can be much larger.
Station data attribution: Slackwater database (https://github.com/openwatersio/slackwater-database). Source: Hart-Davis, M., Dettmering, D., Seitz, F. (2025), TICON-4: TIdal CONstants based on GESLA-4 sea-level records, SEANOE, https://doi.org/10.17882/109129. Licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Modified: see https://github.com/openwatersio/slackwater-database#modifications-to-source-data
The sea at San Juan
Sea stateSea state: slight
The waves you may find
- Most commonMost common1.9 ft
- Significant3.8 ft
- Highest expectedHighest7.8 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 7.8 ft. Before heading out, expect waves of up to 7.8 ft.
Wind on the coast and offshore
Offshore wind. The coast faces west and the wind blows from land out to sea: calm shore and clean waves, but watch the drift out to sea.
Wave height, next 7 daysWaves, next 7 days
Waves stay much the same all week. The biggest waves arrive on Thursday 29: 5.3 ft with a period of 7 s, from the north (moderate).
Water temperature
Water temperature →Water temperature changes how fish behave: in very cold or very warm water they feed less. The water is steady these days, with no sudden changes.
Water warmer than normal for late October (+1.6 °F).
Satellite: NASA MUR (JPL MUR MEaSUREs, PO.DAAC), doi:10.5067/GHGMR-4FJ04. Sources and licenses
Water temperature →Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 7:31 am (local time).
Surf in San Juan today
Surf today
Fair- 2.2–3.4 ft surf at the shore, a fun size for most surfers
- 4.7 ft swell at 6 s from the north, short: weak, messy waves; it hits this coast at an angle
- Almost no wind (2 mph): glassy water
- Rising tide (high tide at 10:06 pm)
- Light: First light 5:33 am · sunrise 5:56 am · sunset 5:28 pm · last light 5:50 pm
- Tide: low 8:53 am (-0.3 ft) and high 10:06 pm (2.5 ft). Every break has its own tide: some work at low tide and others at high tide. The tide doesn’t change the score here.
- Water at 85.6 °F: boardshorts or a swimsuit and a rash guard.
- Energy: 150 kJ · Medium power
Today’s surf at a glance
The best window, 3:00 pm to 5:50 pm, has a good size and glassy water, though with a short-period swell. 12:00 pm to 2:00 pm can also work, with a good size and glassy water, though with a short-period swell.
An estimate for this stretch of coast, not for a specific break: every beach or reef works its own way (its tide, bottom and angle). Check it when you get there.
Follow the flags and the lifeguards, and don’t paddle out if the surf is above your level: this score is a guide, not a substitute for what you see when you get there.
Diving in San Juan today
Diving and snorkeling today
Likely visibility: fair- Slack water around low tide (8:53 am): little current from 7:30 am to 10:20 am
- 3.8 ft swell at 6 s from the north: some surge on the bottom
- Almost no wind
- 0.4 mph current toward the north-northeast, weak (model)
- Sun high: more light underwater
- Slack water today: low tide 8:53 am (7:30–10:20 am) and high tide 10:06 pm (9:40–10:30 pm)
- Likely visibility: fair. Swell (up to 5.4 ft at 7 s) over the last few days has stirred up the water. Based on the last 24 hours of data.
- Water at 85.6 °F: a shorty or a rash guard.
- Snorkeling: better not, with these waves, wind or current.
- Night dive: dark from 5:50 pm. Waning gibbous (88%), rising at 8:11 pm: a bright night.
Your diving day at a glance
The best window, 8:40 am to 11:40 am, combines slack water at low tide, light wind, weak current and the sun high, though with some swell. Also worth a look from 6:00 am to 7:30 am, with light wind, though with some swell and current.
Slack water comes from the tide: in inlets, channels and between islands the water can keep running for an hour or two after. Ask the local dive shop.
Never dive alone and check with the local dive shop: this rating is a guide, not a substitute for a professional.
Dive sites, wrecks and dive shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
Within 12 mi. Some may be missing or closed; marine reserves usually need a permit. Open the map on OpenStreetMap · Missing one? Add it to OpenStreetMap
Wreck and reef positions are approximate and not for navigation; a wreck’s depth runs from the top of the hull to the seabed.
Sites: © OpenStreetMap contributors (ODbL). Wrecks: EMODnet Human Activities (AND-International), from UK Hydrographic Office data, CC BY 4.0. Contains public sector information licensed under the Open Government Licence v3.0.
Weather in San Juan
Now in San Juan
- Low / high
- 75 / 91 °F
- Rain
- 0.00 in · 4%
- Clouds
- 78%
- Humidity
- 73%
- Dew pointDew point
- 72 °F
- Visibility
- 15 mi
- UV indexUV
- 1 · low
- Air qualityAir
- Fair · 22
- Saharan dust
- No
Pressure and fishing
- ↗ RisingRising · now Anglers say fish bite less for a while
- → SteadySteady Anglers expect normal activity
- ↘ FallingFalling Anglers say fish feed more before the change
Rising now (+0.04 inHg in 3 hours). It barely changes over the next 48 hours. Rising pressure: anglers say fish bite less for a while. Fast changes, either way, tend to affect fishing.
Today, hour by hourHour by hour
Bars: mean wind. Dashed line: gusts. Arrows point where the wind blows to.
| Time | 12:00 am | 3:00 am | 6:00 am | 9:00 am | 12:00 pm | 3:00 pm | 6:00 pm | 9:00 pm |
|---|---|---|---|---|---|---|---|---|
| Sky | Mainly clear | Partly cloudy | Partly cloudy | Partly cloudy | Clear sky | Clear sky | Clear | Clear |
| Temperature | 77° | 76° | 77° | 85° | 91° | 89° | 84° | 80° |
| Wind (mph) | 5 ESE | 6 ESE | 4 E | 1 NE | 3 NNW | 4 NW | 1 ESE | 3 E |
| Gusts | 17 | 15 | 14 | 10 | 13 | 11 | 9 | 11 |
| Waves | 4.7 ft | 4.2 ft | 3.9 ft | 3.9 ft | 4.1 ft | 4.7 ft | 5.2 ft | 4.9 ft |
| Rain | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in |
- 9:00 am 85° 1 NE 3.9 ft
- 12:00 pm 91° 3 NNW 4.1 ft
- 3:00 pm 89° 4 NW 4.7 ft
- 6:00 pm 84° 1 ESE 5.2 ft
- 9:00 pm 80° 3 E 4.9 ft
- 12:00 am 78° 3 E 4.2 ft
- 3:00 am 77° 3 E 3.6 ft
- 6:00 am 78° 1 E 3.1 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 29 | 75 / 91 °F | 6 mph E | 5.3 ft | 10:06 pm | |
| Fri 30 | 76 / 88 °F | 5 mph NE | 4.2 ft | 11:12 pm | |
| Sat 31 | 75 / 92 °F | 6 mph E | 3.3 ft | — | |
| Sun 1 | 76 / 90 °F | 4 mph NNE | 2.8 ft | 12:21 am | |
| Mon 2 | 76 / 89 °F | 6 mph NNW | 2.0 ft | 1:30 am | |
| Tue 3 | 74 / 91 °F | 5 mph SE | 2.3 ft | 2:38 am | |
| Wed 4 | 73 / 87 °F | 7 mph NE | 4.4 ft | 3:44 am | |
| Thu 5 | 73 / 86 °F | 6 mph NE | 4.2 ft | 4:48 am · 5:58 pm | |
| Fri 6 | 74 / 91 °F | 6 mph E | 3.7 ft | 5:47 am · 6:08 pm | |
| Sat 7 | 75 / 90 °F | 4 mph ENE | 4.2 ft | 6:42 am · 6:33 pm | |
| Sun 8 | 76 / 91 °F | 4 mph ENE | 5.8 ft | 7:34 am · 7:05 pm | |
| Mon 9 | 77 / 92 °F | 8 mph ENE | 7.3 ft | 8:27 am · 7:39 pm | |
| Tue 10 | 76 / 92 °F | 6 mph ENE | 8.5 ft | 8:15 pm | |
| Wed 11 | 74 / 92 °F | 4 mph E | 7.3 ft | 8:54 pm |
- Fri 30 Drizzle 76° / 88° 4.2 ft
- Sat 31 Partly cloudy 75° / 92° 3.3 ft
- Sun 1 Drizzle 76° / 90° 2.8 ft
- Mon 2 Drizzle 76° / 89° 2.0 ft
- Tue 3 Partly cloudy 74° / 91° 2.3 ft
- Wed 4 Partly cloudy 73° / 87° 4.4 ft
- Thu 5 Light drizzle 73° / 86° 4.2 ft
Each day comes from the best model covering this spot: regional ones first (HRRR and NBM in the U.S., AROME, ICON-EU), then ECMWF; day 16, NOAA GFS. Waves: Météo-France up to day 10, then ECMWF WAM, coarser and further offshore. High tides: our own tide calculation.
- The models They don't agree · low confidence: unsure about rain tomorrow. See the models →
- Outlook Next few weeks, compared with normal: a bit warmer, drier and a slightly warmer sea. See the outlook →
- Normal Today, warmer than normal for late October (+2.1 °F; normal high: 88 °F). Climate by month →
Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 7:31 am (local time).
The sun in San Juan
Sunrise and sunset
- First light 5:08 am
- Full dark 6:16 pm
- Civil dawn 5:33 am
- Civil dusk 5:50 pm
- Solar noon 11:42 am (59° high)
- Daylight 11 h 32 min (−1 min)
- Evening golden hour 4:58 pm
- Full dark 6:16 pm
Golden hour and the day-night map
Today the sun is 92,343,652 mi away and looks 32′ 11″ across.
The moon in San Juan
Moon phase and position
Today the moon is 226,493 mi away and looks 32′ 46″ across.
Solunar periods
Today's activity: medium- 1:02–3:02 am Major · the moon passes overhead · high activity
- 1:34–3:34 pm Major · the moon passes underfoot · high activity
- 8:27–9:27 am Minor · moonset · medium activity
- 7:41–8:41 pm Minor · moonrise · medium activity
According to solunar theory, fish feed more when the moon passes overhead or underfoot (major periods, about 2 h) and when it rises or sets (minor periods, 1 h). It works best around new and full moon.
Upcoming moon phases
2026 moon calendar →- Last quarter Mon, Nov 2 · 4:29 amNov 2 in 4 days
- New moon Mon, Nov 9 · 3:03 pmNov 9 in 11 days
- First quarter Tue, Nov 17 · 7:48 pmNov 17 in 19 days
- Full moon Tue, Nov 24 · 10:54 pmNov 24 in 26 days
Perigee on October 29, 226,426 mi away, coinciding with the spring tides from October 27 to 29: they will be stronger than usual.
Where to fish in San Juan
Piers, ramps and tackle shops nearby
We have no piers, boat ramps or tackle shops on record within 9.3 mi of San Juan.
If you know one, you can add it to OpenStreetMap and it will show up here after the next update. Missing one? Add it to OpenStreetMap
Spots: © OpenStreetMap contributors (ODbL) and Overture Maps.
Water depth
Shallow, gradualShallow, gradual bottom: you need to go 2.2 mi out for 33 ft of water.
From the shoreline (1.6 mi from San Juan) out to sea, heading west.
How far from shore
- 16 ft deep0.45 mi
- 33 ft deep2.2 mi
- 66 ft deepnot within 3.1 mi
- 164 ft deepnot within 3.1 mi
For fishing, swimming and diving
- Shore fishing. Shallow, gradual bottom (16 ft at 0.45 mi): cast far from the beach and fish the high tide, when there is more water close in.
- Swimming. A very gentle way in with plenty of shallow water, good for kids. At low tide the water can be far out.
- Diving. Shallow near shore: you only reach 33 ft at 2.2 mi. For dives deeper than 33 ft, go by boat.
Rough estimate: here the data comes in cells of about 0.3 mi and misses details near shore (rocks, sandbars, small coves).
Source: NOAA ETOPO 2022 (CC0), cells of about 0.3 mi; depth below mean sea level. For reference only: not for navigation or anchoring.
Nearest lighthouse
Salomangue 3.0 mi northwest
- Light
- A red flash every 5 s · Fl R 5s
- Range
- 15 nautical miles (17 mi)
- Light height
- 33 ft above sea level
- Tower height
- 30 ft
Light details: NGA List of Lights (USA); the rest from Wikidata. For reference only: not for navigation. Sources and licenses
Tides near San JuanTides nearby
- Cabugao3.5 mi
- Magsingal4.5 mi
- Puro Pinget7.8 mi
- Sinait8.6 mi
- San Sebastian10 mi
- Pudoc North11 mi
- Bantay12 mi
- Vigan12 mi
- Badoc13 mi
- Cabittaogan13 mi
San Juan at a glance
- Town or city of about 3,148 people. Coordinates: 17.742° N, 120.458° E.
- It is 33 mi south of Laoag, the main place in Ilocos. The sun rises at the same time and sets 1 min later than in Laoag.
- The nearest tide station, Currimao, is 19 mi to the north.
- Its coast faces west.
Questions about San JuanQuestions
What time is high tide today in San Juan?
Today in San Juan there is high tide at 10:06 pm (2.5 ft) and low tide at 8:53 am. Tide coefficient 110.
What time is sunset today in San Juan?
At 5:28 pm. There is light until the end of civil twilight, at 5:50 pm.
What time is sunrise tomorrow in San Juan?
At 5:56 am. First light comes at 5:08 am.
What phase is the moon today?
Waning gibbous, 88% illuminated. New moon on Mon, Nov 9 · 3:03 pm.
When are the next spring tides?
From October 27 to 29, together with the lunar perigee: they will be stronger than usual.
What are today's solunar periods?
Major 1:02–3:02 am, Minor 8:27–9:27 am, Major 1:34–3:34 pm, Minor 7:41–8:41 pm. Today's activity is medium.
What's the weather like today in San Juan?
Overcast, from 75 °F to 91 °F, with a light air from the east-northeast (2 mph) and a 4% chance of rain.
How is the sea today in San Juan?
Slight (Douglas 3): 3.8 ft waves with a period of 7.4 s from the north. The water is 85.6 °F.
When is the best time to visit San Juan?
The best time to visit San Juan is from January to March: highs of 85 °F to 89 °F, about 2 rainy days a month and 8 hours of sunshine a day.
Can I use this data for navigation?
No. These are predictions for fishing and leisure; for navigation, use the official publications.
Where this data comes from
Tide: Currimao station, with constants from TICON-4 (Hart-Davis, Dettmering and Seitz, 2025, SEANOE), licensed CC BY 4.0, via Slackwater database (changes). Sun and moon: our own calculation with astronomy-engine. Places: GeoNames (CC BY 4.0). Coastline: © OpenStreetMap contributors (ODbL).