El Quisco tides today
- Tide now 0.6 ft ↑ rising · high 12:49 am (4.6 ft)
- Best time tomorrow 6:30–7:20 am average day · 6/10
- Beach day Not today Not a beach day · 0/10
- Waves · water 5.6 ft · 65 °F moderate · 10.1 s from the southwest
- Wind · air 8 mph · 63 °F from the NW, gusts 13 · clear sky
- Surf today 3.0–4.7 ft Good day · 6/10 · 7:00–8:37 pm
- Sun 6:51 am–8:11 pm 13 h 20 min of daylight
- Moon 92% · 11:33 pm waning gibbous · rises at 11:33 pm
Today in El Quisco there are high tides at 12:04 am (4.6 ft) and 12:27 pm (3.0 ft) and low tides at 6:40 am and 6:12 pm. Tide coefficient 95. Right now the tide is rising toward the high tide at 12:49 am. The sun rises at 6:51 am and sets at 8:11 pm: 13 h 20 min of daylight. The moon is 92% illuminated (waning gibbous) and rises at 11:33 pm. Major solunar periods run from 2:21 am to 4:21 am and from 2:53 pm to 4:53 pm. The next spring tides arrive from October 26 to 28. The sea is moderate, with 5.6 ft waves. There's a gentle breeze from the northwest (8 mph). Clear sky, 63 °F.
Fishing in El Quisco today
Best time to fish
Solunar activity today: high- Low tide at 6:40 am
- Sunrise at 6:51 am
- Falling pressure (−0.17 inHg in 24 h), light cross-shore wind (6 mph) and 6.6 ft waves
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 95 (spring tides)
Your day at a glance
The best window, 6:20 am to 7:20 am, combines the 6:40 am low tide, sunrise and falling pressure. Also good from 11:30 am to 1:30 pm, with the 12:27 pm high tide, falling pressure and a light onshore breeze.
Beach day in El Quisco
Is it a beach day?
- Sunny
- Low tide at 6:12 pm: more sand
- Feels like 64 °F: a bit cool
- Moderate onshore wind (16 mph): choppy water
- Dangerous for swimming: 6.6 ft waves every 10 s; high rip current risk
- UV 9 (very high): SPF 50 sunscreen
Dangerous surf during beach hours. Stay out if the red flag is up, and never swim where there is no lifeguard.
Today, hour by hour
- Swimming Dangerous · 6.6 ft
6.6 ft waves every 10 s: dangerous for swimming. Stay out if the red flag is up. High rip current risk. If you're caught in a rip current, don't swim against it: swim parallel to shore and wave for help. Always follow the lifeguard's flags.
- Water 64 °F
Cold: ease in slowly.
- Sun & sunscreen UV 9 · SPF 50
Max UV 9 (very high): SPF 50 sunscreen, reapplied every 2 hours. Seek shade 12:00–3:00 pm (very high UV).
- Wind 16 mph
Moderate onshore wind (16 mph).
- Tide & sand 6:40 am
Low tide at 6:40 am and 6:12 pm: that's when there's the most sand. High tide at 12:04 am and 12:27 pm. Coefficient 95 (spring tides): little sand left at high tide.
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 El Quisco
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Playa Hanga Roa 0.4 mi · W
- Parking
- Playa Las Conchitas 0.4 mi · SW
- Parking
- Playa de los Corsarios 0.5 mi · N
- Restrooms
- Parking
- Playa Poza Azul 0.7 mi · SW
- Playa Poza El Batro 0.7 mi · N
- Parking
- Poza El Batro 0.9 mi · N
- Playa Perla Azul 1.0 mi · SW
- Parking
- Las Rocas 1.2 mi · N
Named beaches within 6.2 mi, nearest first. Amenities from OpenStreetMap: some may be missing or out of date. View on OpenStreetMap · Add or fix on OpenStreetMap
Beaches and amenities: © OpenStreetMap contributors (ODbL).
Webcams near El Quisco
Webcams provided by windy.com — add a webcam
Tides in El Quisco
Today's high and low tides
- ▲ High tide 12:04 am 4.6 ft · coef. 95
- ▼ Low tide 6:40 am -0.3 ft
- ▲ High tide 12:27 pm 3.0 ft · coef. 92
- ▼ Low tide 6:12 pm 0.0 ft
↑ Rising The tide is rising. 4 h 59 min to high tide at 12:49 am.
Tide coefficient 95 for the 12:04 am high tide and 92 for the 12:27 pm high tide. Spring tides. The water rises and falls 4.8 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 December 26 (5.2 ft) and the lowest, on August 13 (-0.7 ft).
Mixed: two high and two low tides a day, but of quite different heights.
Heights above MLWS. Astronomical prediction: wind and air pressure can raise or lower the water by a few inches, and more in a storm. Not for navigation. MLWS
Tide coefficient and range in October
The biggest tides of the month came from October 9 to 11 (coefficient 100, 4.5 ft range). The smallest, on October 18 (coefficient 29, 2.3 ft).
Tide and solunar table · this week
| Day | Sun | Tide 1 | Tide 2 | Tide 3 | Tide 4 | Coef. | Moon | Major periods | Activity |
|---|---|---|---|---|---|---|---|---|---|
| Today, Wed 28 | 6:51 am · 8:11 pm | High tide 12:04 am · 4.6 ft | Low tide 6:40 am · -0.3 ft | High tide 12:27 pm · 3.0 ft | Low tide 6:12 pm · 0.0 ft | Coef. 95 | 92% | Major periods 2:21 am · 2:53 pm | High |
| Thu 29 | 6:50 am · 8:12 pm | High tide 12:49 am · 4.6 ft | Low tide 7:35 am · -0.2 ft | High tide 1:18 pm · 2.6 ft | Low tide 6:57 pm · 0.2 ft | Coef. 89 | 84% | Major periods 3:25 am · 3:57 pm | Medium |
| Fri 30 | 6:49 am · 8:13 pm | High tide 1:39 am · 4.5 ft | Low tide 8:36 am · 0.0 ft | High tide 2:18 pm · 2.4 ft | Low tide 7:49 pm · 0.4 ft | Coef. 79 | 75% | Major periods 4:30 am · 5:01 pm | Medium |
| Sat 31 | 6:48 am · 8:13 pm | High tide 2:35 am · 4.2 ft | Low tide 9:46 am · 0.1 ft | High tide 3:33 pm · 2.1 ft | Low tide 8:52 pm · 0.7 ft | Coef. 68 | 64% | Major periods 5:32 am · 6:01 pm | Medium |
| Sun 1 | 6:47 am · 8:14 pm | High tide 3:42 am · 3.9 ft | Low tide 11:03 am · 0.2 ft | High tide 5:03 pm · 2.1 ft | Low tide 10:12 pm · 0.9 ft | Coef. 58 | Last quarter | Major periods 6:30 am · 6:57 pm | Medium |
| Mon 2 | 6:46 am · 8:15 pm | High tide 5:00 am · 3.7 ft | Low tide 12:17 pm · 0.2 ft | High tide 6:24 pm · 2.3 ft | Low tide 11:43 pm · 0.9 ft | Coef. 56 | 42% | Major periods 7:23 am · 7:47 pm | Medium |
| Tue 3 | 6:45 am · 8:16 pm | High tide 6:19 am · 3.6 ft | Low tide 1:17 pm · 0.1 ft | High tide 7:27 pm · 2.7 ft | — | Coef. 63 | 31% | Major periods 8:11 am · 8:35 pm | Medium |
▲ high tide · ▼ low tide · heights above MLWS. Major periods: start time; they last 2 hours. Activity: based on the moon phase and the solunar periods.
Where this tide comes from
El Quisco has no station of its own, so we use the tide at Valparaíso (TICON-4), 25 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 El Quisco
Sea stateSea state: moderate
The waves you may find
- Most commonMost common2.8 ft
- Significant5.6 ft
- Highest expectedHighest11 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 11 ft. Before heading out, expect waves of up to 11 ft.
Wind on the coast and offshore
The model doesn't separate offshore wind here: it's the same as on the coast.
Cross-onshore wind. The coast faces west and the wind comes in from the sea at an angle: a bit more surf at the shore and drift along the coast, toward land.
Wave height, next 7 daysWaves, next 7 days
Waves build over the next few days. The biggest waves arrive on Monday 2: 8.3 ft with a period of 13 s, from the southwest (rough).
Water temperature
Water temperature →The satellite measured 3.4 °F less yesterday than the model gives now: the water is probably colder than the forecast says.
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 (+7.5 °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 7:50 pm (local time).
Surf in El Quisco today
Surf today
Good- 3.2–5.0 ft surf at the shore, a good size with some punch
- 5.1 ft swell at 6 s from the southwest, short: weak, messy waves
- Almost no wind (3 mph): glassy water
- Rising tide (high tide at 12:27 pm)
- Light: First light 6:25 am · sunrise 6:51 am · sunset 8:11 pm · last light 8:37 pm
- Tide: high 12:04 am (4.6 ft), low 6:40 am (-0.3 ft), high 12:27 pm (3.0 ft) and low 6:12 pm (-0.1 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 62.2 °F–64.8 °F: a 4/3 fullsuit.
- Energy: 172 kJ · Medium power
Today’s surf at a glance
The best window, 8:00 am to 12:00 pm, has a good size and glassy water, though with a short-period swell. 7:00 pm to 8:37 pm can also work, with a good size, though with onshore wind.
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 El Quisco today
Diving and snorkeling today
Likely visibility: fair- Slack water around high tide (12:27 pm): little current from 12:00 pm to 12:50 pm
- 4.9 ft swell at 6 s from the southwest: strong surge on the bottom
- Light onshore wind (10 mph)
- 0.4 mph current toward the northeast, weak (model)
- Sun high: more light underwater
- Slack water today: high tide 12:04 am (11:49 pm–12:20 am), low tide 6:40 am (6:20–7:00 am), high tide 12:27 pm (12:00–12:50 pm) and low tide 6:12 pm (5:50–6:30 pm)
- Likely visibility: fair. Swell (up to 4.1 ft at 10 s) over the last few days has stirred up the water. Based on the last 24 hours of data.
- Water at 62.2–64.8 °F: a 7 mm wetsuit, with hood and booties.
- Snorkeling: better not, with these waves, wind or current.
- Night dive: dark from 8:37 pm. Waning gibbous (92%), rising at 11:33 pm: a bright night.
Your diving day at a glance
The best window, 11:30 am to 1:50 pm, combines slack water at high tide, light wind, weak current and the sun high, though with some swell. Also worth a look from 5:30 pm to 7:20 pm, with slack water at low tide and weak current, though with some swell and moderate wind. Also worth a look from 6:20 am to 7:50 am, with slack water at low tide, light wind and weak current, though with some swell.
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
- Algarrobo Marina Fish seen: Cabinza Grunt, Scartichthys viridis, Pinguipes chilensis, Chromis crusma 2.1 mi
- Pena Blanca offshore Fish seen: Chromis crusma, Scartichthys viridis, Aplodactylus punctatus, Cunningham's triplefin 2.6 mi
- ECIM Reserve South Fish seen: Chromis crusma, Scartichthys viridis, Cheilodactylus variegatus, Pinguipes chilensis 7.7 mi
- ECIM Medio Fish seen: Scartichthys viridis, Cheilodactylus variegatus, Pinguipes chilensis, Aplodactylus punctatus 8.0 mi
- Area Marina Costera Protegida Las Cruces 8.2 mi
- Buceo Canelillo 2.1 mi
- Octopus 2.7 mi
- Buceo Algarrobo 2.7 mi
- Centro de Buceo Cinco Océanos 2.8 mi
- Cinco Océanos Algarrobo 2.9 mi
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
Sites: © OpenStreetMap contributors (ODbL). Sites and fish: Reef Life Survey / IMOS NRMN, CC BY 4.0; fish names, Wikidata.
Weather in El Quisco
Now in El Quisco
- Low / high
- 60 / 64 °F
- Rain
- 0.00 in · 0%
- Clouds
- 8%
- Humidity
- 87%
- Dew pointDew point
- 59 °F
- Visibility
- 15 mi
- UV indexUV
- 0 · low
- Air qualityAir
- Moderate · 43
- Saharan dust
- No
Pressure and fishing
- ↗ RisingRising Anglers say fish bite less for a while
- → SteadySteady · now Anglers expect normal activity
- ↘ FallingFalling Anglers say fish feed more before the change
Steady now (+0.00 inHg in 3 hours). Over the next 48 hours: −0.04 inHg. Steady pressure: anglers expect normal activity. 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 | Clear | Clear | Clear | Clear sky | Clear sky | Clear sky | Clear sky | Clear |
| Temperature | 64° | 62° | 62° | 60° | 62° | 62° | 63° | 63° |
| Wind (mph) | 14 SSW | 11 SSW | 9 S | 3 ENE | 7 NW | 15 NW | 14 NW | 4 NNW |
| Gusts | 22 | 16 | 13 | 8 | 8 | 19 | 18 | 10 |
| Waves | 6.6 ft | 6.4 ft | 6.6 ft | 6.6 ft | 6.5 ft | 6.2 ft | 5.8 ft | 5.5 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 pm 63° 4 NNW 5.5 ft
- 12:00 am 62° 3 NNE 5.4 ft
- 3:00 am 60° 6 NNE 5.2 ft
- 6:00 am 59° 6 N 5.1 ft
- 9:00 am 61° 6 N 4.9 ft
- 12:00 pm 63° 12 NNW 4.9 ft
- 3:00 pm 63° 10 NW 4.9 ft
- 6:00 pm 63° 5 W 4.9 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 28 | 60 / 64 °F | 16 mph W | 6.6 ft | 12:04 am · 12:27 pm | |
| Thu 29 | 59 / 63 °F | 12 mph NNW | 5.4 ft | 12:49 am · 1:18 pm | |
| Fri 30 | 59 / 63 °F | 9 mph SW | 7.1 ft | 1:39 am · 2:18 pm | |
| Sat 31 | 62 / 64 °F | 5 mph W | 7.6 ft | 2:35 am · 3:33 pm | |
| Sun 1 | 61 / 63 °F | 15 mph SSW | 7.5 ft | 3:42 am · 5:03 pm | |
| Mon 2 | 60 / 62 °F | 15 mph SSW | 8.3 ft | 5:00 am · 6:24 pm | |
| Tue 3 | 60 / 64 °F | 25 mph NNW | 8.1 ft | 6:19 am · 7:27 pm | |
| Wed 4 | 60 / 63 °F | 13 mph W | 9.0 ft | 7:26 am · 8:17 pm | |
| Thu 5 | 56 / 61 °F | 12 mph NW | 9.1 ft | 8:21 am · 8:59 pm | |
| Fri 6 | 56 / 62 °F | 16 mph WSW | 9.1 ft | 9:08 am · 9:38 pm | |
| Sat 7 | 58 / 62 °F | 22 mph SSW | 8.5 ft | 9:50 am · 10:14 pm | |
| Sun 8 | 60 / 62 °F | 23 mph SSW | 8.4 ft | 10:29 am · 10:49 pm | |
| Mon 9 | 60 / 63 °F | 18 mph SSW | 9.8 ft | 11:07 am · 11:24 pm | |
| Tue 10 | 61 / 63 °F | 17 mph SSW | 9.6 ft | 11:44 am · 11:58 pm |
- Thu 29 Overcast 59° / 63° 5.4 ft
- Fri 30 Overcast 59° / 63° 7.1 ft
- Sat 31 Light drizzle 62° / 64° 7.6 ft
- Sun 1 Light drizzle 61° / 63° 7.5 ft
- Mon 2 Overcast 60° / 62° 8.3 ft
- Tue 3 Light rain 60° / 64° 8.1 ft
- Wed 4 Light drizzle 60° / 63° 9.0 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 temperature today. See the models →
- Outlook Next few weeks, compared with normal: warmer and normal rain. See the outlook →
- Normal Today, cooler than normal for late October (−5.5 °F; normal high: 69 °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 7:50 pm (local time).
The sun in El Quisco
Sunrise and sunset
- First light 5:54 am
- Full dark 9:08 pm
- Civil dawn 6:25 am
- Civil dusk 8:37 pm
- Solar noon 1:31 pm (70° high)
- Daylight 13 h 20 min (+2 min)
- Evening golden hour 7:37 pm
- Full dark 9:08 pm
Golden hour and the day-night map
Today the sun is 92,354,996 mi away and looks 32′ 11″ across.
The moon in El Quisco
Moon phase and position
Today the moon is 226,432 mi away and looks 32′ 47″ across.
Solunar periods
Today's activity: high- 2:21–4:21 am Major · the moon passes overhead · high activity
- 2:53–4:53 pm Major · the moon passes underfoot · high activity
- 7:47–8:47 am Minor · moonset · medium activity
- 11:03 pm–12:03 am 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 Sun, Nov 1 · 5:29 pmNov 1 in 4 days
- New moon Mon, Nov 9 · 4:03 amNov 9 in 12 days
- First quarter Tue, Nov 17 · 8:48 amNov 17 in 20 days
- Full moon Tue, Nov 24 · 11:54 amNov 24 in 27 days
Perigee on October 28, 226,426 mi away, coinciding with the spring tides from October 26 to 28: they will be stronger than usual.
Where to fish in El Quisco
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Muelle Pesquero 0.3 mi
- Muelle Paseos en Lancha 2.8 mi
- Jetty 2.5 mi
- Caleta de Pescadores 8.0 mi
- Club de Yates El Quisco 0.4 mi
- Cofradía Náutica del Pacífico Austral 2.6 mi
- Club de Yates Algarrobo 2.7 mi
Within 9.3 mi. A spot may be missing or closed. Open the map on OpenStreetMap · Missing one? Add it to OpenStreetMap
Spots: © OpenStreetMap contributors (ODbL) and Overture Maps.
Water depth
Gentle slopeThe bottom slopes gently: 16 ft deep 0.5 mi from shore and 33 ft at 0.55 mi. It reaches 164 ft at 0.95 mi.
From the shoreline (0.5 mi from El Quisco) out to sea, heading west.
How far from shore
- 16 ft deep0.5 mi
- 33 ft deep0.55 mi
- 66 ft deep0.7 mi
- 164 ft deep0.95 mi
For fishing, swimming and diving
- Shore fishing. Shallow, gradual bottom (16 ft at 0.5 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. Shore diving works here: 33 ft at 0.55 mi and 66 ft at 0.7 mi from shore.
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.
Tides near El QuiscoTides nearby
- Algarrobo2.2 mi
- El Tabo4.3 mi
- Cartagena12 mi
- San Antonio14 mi
- Santo Domingo17 mi
- Muelle Barón25 mi
- Muelle Prat25 mi
- Valparaíso25 mi
- Viña del Mar27 mi
- Concón34 mi
El Quisco at a glance
- Town or city of about 16,967 people. Coordinates: 33.398° S, 71.694° W.
- It is 25 mi south of Valparaíso, the main place in Valparaíso. The sun rises at the same time and sets 1 min later than in Valparaíso.
- The nearest tide station, Valparaíso, is 25 mi to the north.
- Its coast faces west.
- Beaches and harbors nearby: Playa San Jerónimo (4.2 mi).
Questions about El QuiscoQuestions
What time is high tide today in El Quisco?
Today in El Quisco there are high tides at 12:04 am (4.6 ft) and 12:27 pm (3.0 ft) and low tides at 6:40 am and 6:12 pm. Tide coefficient 95.
What time is sunset today in El Quisco?
At 8:11 pm. There is light until the end of civil twilight, at 8:37 pm.
What time is sunrise tomorrow in El Quisco?
At 6:50 am. First light comes at 5:53 am.
What phase is the moon today?
Waning gibbous, 92% illuminated. New moon on Mon, Nov 9 · 4:03 am.
When are the next spring tides?
From October 26 to 28, together with the lunar perigee: they will be stronger than usual.
What are today's solunar periods?
Major 2:21–4:21 am, Minor 7:47–8:47 am, Major 2:53–4:53 pm, Minor 11:03 pm–12:03 am. Today's activity is high.
What's the weather like today in El Quisco?
Clear sky, from 60 °F to 64 °F, with a gentle breeze from the northwest (8 mph) and a 0% chance of rain.
How is the sea today in El Quisco?
Moderate (Douglas 4): 5.6 ft waves with a period of 10.1 s from the southwest. The water is 64.8 °F.
When is the best time to visit El Quisco?
The best time to visit El Quisco is from November to March: highs of 71 °F to 76 °F, barely 1 rainy day a month and 7 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: Valparaíso 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).