Azenhas do Mar tides today
- Tide now 9.1 ft ↑ rising · high 4:04 am (10.7 ft)
- Best time to fish 3:30–5:30 pm good day · 8/10
- Beach tomorrow 11:00 am–2:00 pm Poor beach day · 4/10
- Waves · water 8.6 ft · 61 °F rough · 11.5 s from the northwest
- Wind · air 3 mph · 58 °F from the E, gusts 5 · clear
- Surf today 3.7–5.6 ft Good day · 7/10 · 4:00–6:00 pm
- Sun 7:02 am–5:41 pm 10 h 39 min of daylight
- Moon 85% · 8:09 pm waning gibbous · rises at 8:09 pm
Today in Azenhas do Mar there are high tides at 4:04 am (10.7 ft) and 4:32 pm (10.0 ft) and low tides at 10:15 am and 10:31 pm. Tide coefficient 93. Right now the tide is rising toward the high tide at 4:04 am. The sun rises at 7:02 am and sets at 5:41 pm: 10 h 39 min of daylight. The moon is 85% illuminated (waning gibbous) and rises at 8:09 pm. Major solunar periods run from 2:05 am to 4:05 am and from 2:37 pm to 4:37 pm. The next spring tides arrive from November 9 to 11. The sea is rough, with 8.6 ft waves. There's a light air from the east (3 mph). Clear, 58 °F.
Fishing in Azenhas do Mar today
Best time to fish
Solunar activity today: medium- High tide at 4:32 pm, coefficient 87
- Major period 2:37–4:37 pm
- Sunset at 5:41 pm, golden hour from 5:04 pm
- Falling pressure (−0.09 inHg in 24 h), almost no wind and 5.2 ft waves
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 93 (spring tides)
Your day at a glance
The best window, 3:30 pm to 5:30 pm, combines the 4:32 pm high tide, a major period, sunset and falling pressure. Also good from 10:30 am to 11:20 am, with the 10:15 am low tide, moonset and falling pressure. Also worth a try from 3:00 am to 4:00 am, with the 4:04 am high tide, a major period and falling pressure, though with rough seas.
Species with the most records nearby: European hake, Atlantic horse mackerel, small-spotted catshark and European conger. October is one of the months when these are seen most: small-spotted catshark and thornback ray. What you can catch
Beach day in Azenhas do Mar
Is it a beach day?
- Sunny
- Feels like 73 °F: mild
- Onshore breeze (5 mph)
- UV 4 (moderate): SPF 30 sunscreen
- Low tide at 10:15 am: more sand
- Dangerous for swimming: 7.3 ft waves every 11 s; high rip current risk
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 · 7.3 ft
7.3 ft waves every 11 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 62 °F
Cold: ease in slowly.
- Sun & sunscreen UV 4 · SPF 30
Max UV 4 (moderate): SPF 30 sunscreen, reapplied every 2 hours.
- Wind 5 mph
Onshore breeze (5 mph).
- Tide & sand 10:15 am
Low tide at 10:15 am and 10:31 pm: that's when there's the most sand. High tide at 4:04 am and 4:32 pm.
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 Azenhas do Mar
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Praia da Aguda 0.8 mi · N
- Parking
- Praia das Maçãs 1.3 mi · SW
- Restrooms
- Showers
- Parking
Excellent water quality 2025 season, EEA
- Praia do Magoito 1.4 mi · N
- Parking
Excellent water quality 2025 season, EEA
- Praia Pequena do Rodízio 1.7 mi · SW
- Parking
- Praia Grande do Rodízio 2.2 mi · SW
- Restrooms
- Parking
Excellent water quality 2025 season, EEA
- Praia do Giribeto 2.4 mi · N
- Praia da Adraga 3.0 mi · SW
- Restrooms
- Parking
Excellent water quality 2025 season, EEA
- Caneiro Beach 3.6 mi · SW
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). Bathing water quality: European Environment Agency (EEA), with data from the Portuguese Environment Agency (APA).
Webcams near Azenhas do Mar
Webcams provided by windy.com — add a webcam
Tides in Azenhas do Mar
Today's high and low tides
- ▲ Next high tide 4:04 am 10.7 ft · coef. 93
- ▼ Low tide 10:15 am 1.7 ft
- ▲ High tide 4:32 pm 10.0 ft · coef. 87
- ▼ Low tide 10:31 pm 2.3 ft
↑ Rising The tide is rising. 1 h 43 min to high tide at 4:04 am.
Tide coefficient 93 for the 4:04 am high tide and 87 for the 4:32 pm high tide. Spring tides. The water rises and falls 9.0 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 August 13 (11.3 ft) and the lowest, on August 13 (0.6 ft).
Semidiurnal: two high and two low tides a day, of similar height.
Heights above chart datum: the lowest astronomical tide (LAT), the zero of nautical charts in Europe. Astronomical prediction: wind and air pressure can raise or lower the water by a few inches, and more in a storm. Not for navigation. chart datum (LAT)
Tide coefficient and range in October
The biggest tides of the month came from October 26 to 28 (coefficient 101, 9.6 ft range). The smallest, from October 18 to 19 (coefficient 29, 3.2 ft).
Tide and solunar table · this week
| Day | Sun | Tide 1 | Tide 2 | Tide 3 | Tide 4 | Coef. | Moon | Major periods | Activity |
|---|---|---|---|---|---|---|---|---|---|
| Today, Thu 29 | 7:02 am · 5:41 pm | High tide 4:04 am · 10.7 ft | Low tide 10:15 am · 1.7 ft | High tide 4:32 pm · 10.0 ft | Low tide 10:31 pm · 2.3 ft | Coef. 93 | 85% | Major periods 2:05 am · 2:37 pm | Medium |
| Fri 30 | 7:03 am · 5:40 pm | High tide 4:53 am · 10.2 ft | Low tide 11:08 am · 2.2 ft | High tide 5:27 pm · 9.3 ft | Low tide 11:23 pm · 3.0 ft | Coef. 81 | 76% | Major periods 3:09 am · 3:41 pm | Medium |
| Sat 31 | 7:04 am · 5:39 pm | High tide 5:50 am · 9.7 ft | Low tide 12:11 pm · 2.9 ft | High tide 6:32 pm · 8.6 ft | — | Coef. 67 | 65% | Major periods 4:12 am · 4:42 pm | Medium |
| Sun 1 | 7:05 am · 5:38 pm | Low tide 12:27 am · 3.7 ft | High tide 6:58 am · 9.2 ft | Low tide 1:30 pm · 3.3 ft | High tide 7:52 pm · 8.1 ft | Coef. 55 | Last quarter | Major periods 5:11 am · 5:39 pm | Medium |
| Mon 2 | 7:06 am · 5:36 pm | Low tide 1:49 am · 4.1 ft | High tide 8:19 am · 8.9 ft | Low tide 3:02 pm · 3.4 ft | High tide 9:19 pm · 8.1 ft | Coef. 50 | 43% | Major periods 6:05 am · 6:30 pm | Medium |
| Tue 3 | 7:07 am · 5:35 pm | Low tide 3:21 am · 4.0 ft | High tide 9:42 am · 8.9 ft | Low tide 4:20 pm · 3.2 ft | High tide 10:32 pm · 8.4 ft | Coef. 56 | 32% | Major periods 6:54 am · 7:18 pm | Medium |
| Wed 4 | 7:08 am · 5:34 pm | Low tide 4:34 am · 3.7 ft | High tide 10:50 am · 9.2 ft | Low tide 5:18 pm · 2.8 ft | High tide 11:28 pm · 8.9 ft | Coef. 65 | 23% | Major periods 7:40 am · 8:03 pm | Low |
▲ high tide · ▼ low tide · heights above chart datum (LAT). Major periods: start time; they last 2 hours. Activity: based on the moon phase and the solunar periods.
Where this tide comes from
Azenhas do Mar has no station of its own, so we use the tide at Cascais (TICON-4), 11 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 Azenhas do Mar
Sea stateSea state: rough
The waves you may find
- Most commonMost common4.3 ft
- Significant8.6 ft
- Highest expectedHighest17 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 17 ft. Before heading out, expect waves of up to 17 ft.
Wind on the coast and offshore
Cross-offshore wind. The coast faces west and the wind comes off the land at an angle: calmer water near the shore, and bait and boats drift out to sea.
Wave height, next 7 daysWaves, next 7 days
Waves ease over the next few days. The biggest waves arrive on Thursday 29: 8.9 ft with a period of 12 s, from the northwest (rough).
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 colder than normal for late October (−1.7 °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 2:19 am (local time).
Surf in Azenhas do Mar today
Surf today
Good- 3.7–5.6 ft surf at the shore, a good size with some punch
- 4.9 ft swell at 9 s from the north-northwest, a bit short
- Almost no wind (4 mph): glassy water
- Rising tide (high tide at 4:32 pm)
- Light: First light 6:34 am · sunrise 7:02 am · sunset 5:41 pm · last light 6:08 pm
- Tide: high 4:04 am (10.7 ft), low 10:15 am (1.7 ft), high 4:32 pm (10.0 ft) and low 10:31 pm (2.3 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 61.2 °F: a 4/3 fullsuit.
- Energy: 311 kJ · Medium power
Today’s surf at a glance
The best window, 4:00 pm to 6:00 pm, has a good size and glassy water. 11:00 am to 3:00 pm also works, with a good size and glassy water.
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 Azenhas do Mar today
Diving and snorkeling today
Likely visibility: poor- Slack water around high tide (4:32 pm): little current from 4:10 pm to 4:50 pm
- 5.0 ft swell at 9 s from the northwest: strong surge on the bottom
- Almost no wind
- 0.1 mph current toward the south, weak (model)
- Daylight
- Slack water today: high tide 4:04 am (3:40–4:20 am), low tide 10:15 am (9:50–10:40 am), high tide 4:32 pm (4:10–4:50 pm) and low tide 10:31 pm (10:10–11:00 pm)
- Likely visibility: poor. Swell (up to 11 ft at 11 s) over the last few days has stirred up the water. Based on the last 24 hours of data.
- Water at 61.2 °F: a 7 mm wetsuit, with hood and booties.
- Snorkeling: better not, with these waves, wind or current.
- Night dive: dark from 6:08 pm. Waning gibbous (85%), rising at 8:09 pm: a bright night.
Your diving day at a glance
The best window, 3:30 pm to 5:30 pm, combines slack water at high tide, light wind and weak current, though with some swell. Also worth a look from 9:50 am to 10:40 am, with slack water at low tide, light wind, weak current and the sun high, though with a big 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
- Primo Baltazar 4.7 mi
- Sea Coral 8.8 mi
- Acor 9.8 mi
- Hildebrand 9.9 mi
- Área Marinha Protegida das Avencas 12 mi
- Cascais Dive 10 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
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 Azenhas do Mar
Now in Azenhas do Mar
- Low / high
- 56 / 74 °F
- Rain
- 0.00 in · 0%
- Clouds
- 0%
- Humidity
- 84%
- Dew pointDew point
- 53 °F
- Visibility
- 14 mi
- UV indexUV
- 0 · low
- Air qualityAir
- Fair · 30
- Saharan dust
- No
- Pollen
- None
Pressure and fishing
- ↗ RisingRising Anglers say fish bite less for a while
- → SteadySteady Anglers expect normal activity
- ↘ FallingFalling · now Anglers say fish feed more before the change
Falling now (−0.03 inHg in 3 hours). Over the next 48 hours: −0.07 inHg. Falling pressure: anglers say fish feed more before the change. 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 | Mainly clear |
| Temperature | 59° | 57° | 56° | 64° | 73° | 72° | 66° | 63° |
| Wind (mph) | 3 NE | 3 E | 4 ESE | 2 ESE | 1 SE | 5 WNW | 2 NNE | 3 E |
| Gusts | 6 | 5 | 6 | 6 | 6 | 9 | 4 | 4 |
| Waves | 8.9 ft | 8.5 ft | 7.9 ft | 7.1 ft | 6.3 ft | 5.6 ft | 5.1 ft | 4.8 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 |
- 3:00 am 57° 3 E 8.5 ft
- 6:00 am 56° 4 ESE 7.9 ft
- 9:00 am 64° 2 ESE 7.1 ft
- 12:00 pm 73° 1 SE 6.3 ft
- 3:00 pm 72° 5 WNW 5.6 ft
- 6:00 pm 66° 2 NNE 5.1 ft
- 9:00 pm 63° 3 E 4.8 ft
- 12:00 am 60° 3 ESE 4.7 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 29 | 56 / 74 °F | 5 mph E | 8.9 ft | 4:04 am · 4:32 pm | |
| Fri 30 | 60 / 74 °F | 5 mph ENE | 5.1 ft | 4:53 am · 5:27 pm | |
| Sat 31 | 58 / 72 °F | 5 mph NE | 6.4 ft | 5:50 am · 6:32 pm | |
| Sun 1 | 58 / 71 °F | 4 mph ESE | 6.4 ft | 6:58 am · 7:52 pm | |
| Mon 2 | 57 / 67 °F | 9 mph N | 5.1 ft | 8:19 am · 9:19 pm | |
| Tue 3 | 57 / 76 °F | 8 mph NNE | 3.7 ft | 9:42 am · 10:32 pm | |
| Wed 4 | 54 / 64 °F | 10 mph NE | 4.7 ft | 10:50 am · 11:28 pm | |
| Thu 5 | 51 / 65 °F | 4 mph E | 4.7 ft | 11:45 am | |
| Fri 6 | 55 / 66 °F | 12 mph SE | 5.1 ft | 12:13 am · 12:30 pm | |
| Sat 7 | 61 / 67 °F | 10 mph SSE | — | 12:53 am · 1:11 pm | |
| Sun 8 | 62 / 64 °F | 12 mph SE | — | 1:29 am · 1:48 pm | |
| Mon 9 | 61 / 68 °F | 10 mph S | — | 2:04 am · 2:23 pm | |
| Tue 10 | 61 / 68 °F | 11 mph SW | — | 2:38 am · 2:57 pm | |
| Wed 11 | 59 / 66 °F | 6 mph WSW | — | 3:11 am · 3:31 pm |
- Fri 30 Overcast 60° / 74° 5.1 ft
- Sat 31 Overcast 58° / 72° 6.4 ft
- Sun 1 Clear sky 58° / 71° 6.4 ft
- Mon 2 Partly cloudy 57° / 67° 5.1 ft
- Tue 3 Overcast 57° / 76° 3.7 ft
- Wed 4 Clear sky 54° / 64° 4.7 ft
- Thu 5 Mainly clear 51° / 65° 4.7 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 Partly agree · medium confidence: unsure about temperature on Sunday 1. See the models →
- Outlook Next few weeks, compared with normal: a bit warmer, normal rain and a near-normal sea. See the outlook →
- Normal Today, warmer than normal for late October (+6.8 °F; normal high: 67 °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 2:19 am (local time).
The sun in Azenhas do Mar
Sunrise and sunset
- First light 6:03 am
- Full dark 6:40 pm
- Civil dawn 6:34 am
- Civil dusk 6:08 pm
- Solar noon 12:22 pm (38° high)
- Daylight 10 h 39 min (−2 min)
- Evening golden hour 5:04 pm
- Full dark 6:40 pm
Golden hour and the day-night map
Today the sun is 92,334,915 mi away and looks 32′ 11″ across.
The moon in Azenhas do Mar
Moon phase and position
Today the moon is 226,641 mi away and looks 32′ 45″ across.
Solunar periods
Today's activity: medium- 2:05–4:05 am Major · the moon passes overhead · high activity
- 2:37–4:37 pm Major · the moon passes underfoot · high activity
- 10:35–11:35 am Minor · moonset · medium activity
- 7:39–8:39 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 Sun, Nov 1 · 8:29 pmNov 1 in 3 days
- New moon Mon, Nov 9 · 7:03 amNov 9 in 11 days
- First quarter Tue, Nov 17 · 11:48 amNov 17 in 19 days
- Full moon Tue, Nov 24 · 2:54 pmNov 24 in 26 days
Next perigee (the moon at its closest to Earth): November 25, 223,281 mi away.
Where to fish in Azenhas do Mar
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
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 1,100 ft from shore and 33 ft at 0.35 mi. It reaches 164 ft at 2.6 mi.
From the shoreline (1,100 ft from Azenhas do Mar) out to sea, heading west.
How far from shore
- 16 ft deep1,100 ft
- 33 ft deep0.35 mi
- 66 ft deep0.7 mi
- 164 ft deep2.6 mi
For fishing, swimming and diving
- Shore fishing. Shallow, gradual bottom (16 ft at 1,100 ft): 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 0.35 mi and 66 ft at 0.7 mi from shore.
Source: EMODnet Bathymetry DTM 2024 (CC BY 4.0), cells of about 380 ft; depth at the lowest astronomical tide. For reference only: not for navigation or anchoring.
Nearest lighthouse
Cabo da Roca Lighthouse 4.6 mi southwest
- Light
- 4 white flashes every 17 s · Fl(4) W 17s
- Range
- 26 nautical miles (30 mi)
- Light height
- 541 ft above sea level
- Tower height
- 72 ft
- Built
- 1758
Light details: NGA List of Lights (USA); the rest from Wikidata. For reference only: not for navigation. Wikipedia · Wikidata · Sources and licenses
Tides near Azenhas do MarTides nearby
- Fontanelas1.1 mi
- Ulgueira3.9 mi
- Cape Roca4.6 mi
- Azoia4.6 mi
- Alcabideche7.9 mi
- Ericeira8.7 mi
- Alvide8.9 mi
- Cobre9.0 mi
- Monte Estoril9.7 mi
- Estoril9.9 mi
Azenhas do Mar at a glance
- Town or city of about 800 people. Coordinates: 38.841° N, 9.458° W.
- It is 18 mi northwest of Lisbon, the main place in Lisbon. The sun rises 1 min later and sets 1 min later than in Lisbon.
- The nearest tide station, Cascais, is 11 mi to the south.
- Its coast faces west.
- Beaches and harbors nearby: Arcão (0.3 mi), Praia dos Moleiros (0.4 mi), Praia da Aguda (0.8 mi), Concelho (0.8 mi).
Questions about Azenhas do MarQuestions
What time is high tide today in Azenhas do Mar?
Today in Azenhas do Mar there are high tides at 4:04 am (10.7 ft) and 4:32 pm (10.0 ft) and low tides at 10:15 am and 10:31 pm. Tide coefficient 93.
What time is sunset today in Azenhas do Mar?
At 5:41 pm. There is light until the end of civil twilight, at 6:08 pm.
What time is sunrise tomorrow in Azenhas do Mar?
At 7:03 am. First light comes at 6:04 am.
What phase is the moon today?
Waning gibbous, 85% illuminated. New moon on Mon, Nov 9 · 7:03 am.
When are the next spring tides?
From November 9 to 11.
What are today's solunar periods?
Major 2:05–4:05 am, Minor 10:35–11:35 am, Major 2:37–4:37 pm, Minor 7:39–8:39 pm. Today's activity is medium.
What's the weather like today in Azenhas do Mar?
Mainly clear, from 56 °F to 74 °F, with a light air from the east (3 mph) and a 0% chance of rain.
How is the sea today in Azenhas do Mar?
Rough (Douglas 5): 8.6 ft waves with a period of 11.5 s from the northwest. The water is 61.2 °F.
When is the best time to visit Azenhas do Mar?
The best time to visit Azenhas do Mar is from June to August: highs of 72 °F to 76 °F, barely 1 rainy day a month and 11 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: Cascais 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).