Belém Tower tides today
- Tide now 1.8 ft ↑ rising · high 4:04 am (10.7 ft)
- Best time tomorrow 3:30–5:30 pm good day · 7/10
- Beach tomorrow 12:00–5:00 pm Fair beach day · 6/10
- Waves · water 4.2 ft · 64 °F moderate · 12.0 s from the west-northwest
- Wind · air 3 mph · 62 °F from the NE, gusts 6 · mainly clear
- Sun 6:59 am–5:41 pm 10 h 42 min of daylight
- Moon 92% · 7:08 pm waning gibbous · rises at 7:08 pm
- Diving tomorrow 3:30–5:30 pm good day · 8/10
Today in Belém Tower there are high tides at 3:19 am (10.9 ft) and 3:43 pm (10.6 ft) and low tides at 9:28 am and 9:45 pm. Tide coefficient 100. Right now the tide is rising toward the high tide at 4:04 am. The sun rises at 6:59 am and sets at 5:41 pm: 10 h 42 min of daylight. The moon is 92% illuminated (waning gibbous) and rises at 7:08 pm. Major solunar periods run from 1:00 am to 3:00 am and from 1:32 pm to 3:32 pm. The next spring tides arrive from October 26 to 28. The sea is moderate, with 4.2 ft waves. There's a light air from the northeast (3 mph). Mainly clear, 62 °F.
Fishing in Belém Tower today
Best time to fish
Solunar activity today: high- High tide at 3:43 pm, coefficient 97
- Major period 1:32–3:32 pm
- Steady pressure (30.15 inHg), almost no wind and 4.9 ft waves
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 100 (big spring tides)
Your day at a glance
The best window, 2:40 pm to 3:30 pm, combines the 3:43 pm high tide and a major period. Also good from 9:20 am to 10:20 am, with the 9:28 am low tide and moonset. Also worth a try from 2:20 am to 3:00 am, with the 3:19 am high tide, a major period and some swell, though with rising pressure.
Species with the most records nearby: European hake, Atlantic horse mackerel, common two-banded seabream and small-spotted catshark. October is one of the months when these are seen most: small-spotted catshark. What you can catch
Beach day in Belém Tower
Is it a beach day?
- Mostly sunny
- Feels like 77 °F: pleasant
- Cross-shore breeze (8 mph)
- UV 4 (moderate): SPF 30 sunscreen
- Water at 65 °F (cool)
- Low tide at 9:28 am: more sand
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 · 5.2 ft
5.2 ft waves every 13 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 65 °F
Cool: refreshing on a hot day.
- Sun & sunscreen UV 4 · SPF 30
Max UV 4 (moderate): SPF 30 sunscreen, reapplied every 2 hours.
- Wind 8 mph
Cross-shore breeze (8 mph).
- Tide & sand 9:28 am
Low tide at 9:28 am and 9:45 pm: that's when there's the most sand. High tide at 3:19 am and 3:43 pm. Coefficient 100 (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 Belém Tower
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Prainha do Porto Brandão 1.7 mi · SW
- Parking
- Praia de Algés 2.1 mi · W
- Parking
- Praia do Portinho da Costa 2.2 mi · SW
- Praia do Dafundo 2.5 mi · W
- Parking
- Praia da Trafaria 2.8 mi · SW
- Restrooms
- Parking
- Praia da Mutela 2.9 mi · SE
- Parking
- Praia da Cruz Quebrada 3.2 mi · W
- Praia de Caxias 4.6 mi · W
- Restrooms
- Showers
- Parking
Sufficient water quality 2025 season, EEA
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 Belém Tower
Webcams provided by windy.com — add a webcam
Tides in Belém Tower
Today's high and low tides
- ▲ High tide 3:19 am 10.9 ft · coef. 100
- ▼ Low tide 9:28 am 1.4 ft
- ▲ High tide 3:43 pm 10.6 ft · coef. 97
- ▼ Low tide 9:45 pm 1.8 ft
↑ Rising The tide is rising. 6 h 14 min to high tide at 4:04 am.
Tide coefficient 100 for the 3:19 am high tide and 97 for the 3:43 pm high tide. Big spring tides. The water rises and falls 9.5 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, Wed 28 | 6:59 am · 5:41 pm | High tide 3:19 am · 10.9 ft | Low tide 9:28 am · 1.4 ft | High tide 3:43 pm · 10.6 ft | Low tide 9:45 pm · 1.8 ft | Coef. 100 | 92% | Major periods 1:00 am · 1:32 pm | High |
| Thu 29 | 7:00 am · 5:40 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 2:04 am · 2:36 pm | Medium |
| Fri 30 | 7:01 am · 5:39 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 3:08 am · 3:40 pm | Medium |
| Sat 31 | 7:02 am · 5:38 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 4:11 am · 4:41 pm | Medium |
| Sun 1 | 7:04 am · 5:37 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 5:10 am · 5:37 pm | Medium |
| Mon 2 | 7:05 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 6:04 am · 6:29 pm | Medium |
| Tue 3 | 7:06 am · 5:34 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 6:53 am · 7:17 pm | Medium |
▲ 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
Belém Tower has no station of its own, so we use the tide at Cascais (TICON-4), 12 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 Belém Tower
Sea stateSea state: moderate
The waves you may find
- Most commonMost common2.1 ft
- Significant4.2 ft
- Highest expectedHighest8.2 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 8.2 ft. Before heading out, expect waves of up to 8.2 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 Wednesday 28: 5.2 ft with a period of 13 s, from the west-northwest (moderate).
Water temperature
Water temperature →Water temperature changes how fish behave: in very cold or very warm water they feed less. The water cools over the next few days: about 63.5 °F by Tuesday 3.
Water colder than normal for late October (−1.8 °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 9:50 pm (local time).
Diving in Belém Tower today
Diving and snorkeling today
Likely visibility: fair- Slack water around low tide (9:28 am): little current from 9:10 am to 9:50 am
- 5.1 ft swell at 11 s from the west-northwest: strong surge on the bottom
- Light offshore wind (5 mph)
- 0.1 mph current toward the west, weak (model)
- Sun high: more light underwater
- Slack water today: high tide 3:19 am (3:00–3:40 am), low tide 9:28 am (9:10–9:50 am), high tide 3:43 pm (3:20–4:00 pm) and low tide 9:45 pm (9:20–10:10 pm)
- Likely visibility: fair. Swell (up to 5.1 ft at 11 s) over the last few days has stirred up the water. Based on the last 24 hours of data.
- Water at 64.2 °F: a 7 mm wetsuit, with hood and booties.
- Snorkeling: better not, with these waves, wind or current.
- Night dive: dark from 6:09 pm. Waning gibbous (92%), rising at 7:08 pm: a bright night.
Your diving day at a glance
The best window, 8:50 am to 10:20 am, combines slack water at low tide, light wind, weak current and the sun high, though with a big swell. Also worth a look from 2:50 pm to 4:20 pm, with slack water at high tide, light wind and weak current, 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
- Nautilus-SUB 4.2 mi
- Borussia 0.6 mi
- Ville Victoire 1.1 mi
- Pegasus 1.2 mi
- Palenca 1.4 mi
- Carvoeiro 1.6 mi
- S Vincente 4.5 mi
- Wreck 2.7 mi
- Área Marinha Protegida das Avencas 9.1 mi
- Escola de Mergulho de Lisboa 2.6 mi
- Madivers 2.6 mi
- SubCentro 3.4 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 Belém Tower
Now in Belém Tower
- Low / high
- 58 / 76 °F
- Rain
- 0.00 in · 0%
- Clouds
- 3%
- Humidity
- 74%
- Dew pointDew point
- 53 °F
- Visibility
- 21 mi
- UV indexUV
- 0 · low
- Air qualityAir
- Fair · 26
- Saharan dust
- No
- Pollen
- None
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 (+0.01 inHg in 3 hours). Over the next 48 hours: −0.09 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 | Mainly clear | Mainly clear | Mainly clear | Partly cloudy | Clear sky | Mainly clear | Overcast | Mainly clear |
| Temperature | 61° | 60° | 59° | 62° | 70° | 76° | 67° | 63° |
| Wind (mph) | 2 NW | 2 N | 2 NE | 4 ENE | 2 NE | 3 NW | 4 NNW | 2 NNE |
| Gusts | 4 | 4 | 4 | 11 | 9 | 14 | 18 | 6 |
| Waves | 4.7 ft | 4.7 ft | 4.9 ft | 5.2 ft | 5.2 ft | 4.9 ft | 4.6 ft | 4.3 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° 2 NNE 4.3 ft
- 12:00 am 59° 3 NE 3.9 ft
- 3:00 am 58° 4 NE 3.7 ft
- 6:00 am 57° 5 NE 3.4 ft
- 9:00 am 63° 6 ENE 3.1 ft
- 12:00 pm 73° 6 ENE 2.8 ft
- 3:00 pm 79° 2 WSW 2.5 ft
- 6:00 pm 72° 2 W 2.3 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 28 | 58 / 76 °F | 8 mph N | 5.2 ft | 3:19 am · 3:43 pm | |
| Thu 29 | 57 / 79 °F | 6 mph NE | 3.9 ft | 4:04 am · 4:32 pm | |
| Fri 30 | 58 / 80 °F | 7 mph NE | 2.8 ft | 4:53 am · 5:27 pm | |
| Sat 31 | 58 / 79 °F | 5 mph NNE | 3.1 ft | 5:50 am · 6:32 pm | |
| Sun 1 | 56 / 75 °F | 5 mph NNE | 3.1 ft | 6:58 am · 7:52 pm | |
| Mon 2 | 58 / 78 °F | 11 mph N | 2.3 ft | 8:19 am · 9:19 pm | |
| Tue 3 | 58 / 71 °F | 10 mph NE | 1.6 ft | 9:42 am · 10:32 pm | |
| Wed 4 | 54 / 64 °F | 10 mph NE | 2.2 ft | 10:50 am · 11:28 pm | |
| Thu 5 | 51 / 65 °F | 4 mph E | 2.3 ft | 11:45 am | |
| Fri 6 | 55 / 66 °F | 12 mph SE | 3.3 ft | 12:13 am · 12:30 pm | |
| Sat 7 | 61 / 67 °F | 10 mph SSE | 0.7 ft | 12:53 am · 1:11 pm | |
| Sun 8 | 62 / 64 °F | 12 mph SE | 1.2 ft | 1:29 am · 1:48 pm | |
| Mon 9 | 61 / 68 °F | 10 mph S | 1.4 ft | 2:04 am · 2:23 pm | |
| Tue 10 | 61 / 68 °F | 11 mph SW | 0.7 ft | 2:38 am · 2:57 pm |
- Thu 29 Mainly clear 57° / 79° 3.9 ft
- Fri 30 Overcast 58° / 80° 2.8 ft
- Sat 31 Clear sky 58° / 79° 3.1 ft
- Sun 1 Mainly clear 56° / 75° 3.1 ft
- Mon 2 Mainly clear 58° / 78° 2.3 ft
- Tue 3 Partly cloudy 58° / 71° 1.6 ft
- Wed 4 Clear sky 54° / 64° 2.2 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 Partly agree · medium confidence: unsure about temperature on Saturday 31. See the models →
- Outlook Next few weeks, compared with normal: warmer and a bit wetter. See the outlook →
- Normal Today, warmer than normal for late October (+6.9 °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 9:50 pm (local time).
The sun in Belém Tower
Sunrise and sunset
- First light 6:01 am
- Full dark 6:40 pm
- Civil dawn 6:32 am
- Civil dusk 6:09 pm
- Solar noon 12:21 pm (38° high)
- Daylight 10 h 42 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 92,359,237 mi away and looks 32′ 11″ across.
The moon in Belém Tower
Moon phase and position
Today the moon is 226,451 mi away and looks 32′ 47″ across.
Solunar periods
Today's activity: high- 1:00–3:00 am Major · the moon passes overhead · high activity
- 1:32–3:32 pm Major · the moon passes underfoot · high activity
- 9:21–10:21 am Minor · moonset · medium activity
- 6:38–7:38 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 4 days
- New moon Mon, Nov 9 · 7:03 amNov 9 in 12 days
- First quarter Tue, Nov 17 · 11:48 amNov 17 in 20 days
- Full moon Tue, Nov 24 · 2:54 pmNov 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 Belém Tower
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Pontão para o Rio Judeu 6.7 mi
- Cais da Viscondessa 2.1 mi
- Cais da Ribeira das Naus 2.8 mi
- Jetty 2.9 mi
- Boat ramp 0.6 mi
- Boat ramp 0.9 mi
- Boat ramp 1.1 mi
- Doca de Belém 0.6 mi
- Santo Amaro Dock 0.8 mi
- Aquatorres 2.2 mi
- Go Fishing Portugal 2.2 mi
- Fuel dock 0.7 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 800 ft from shore and 33 ft at 0.35 mi.
From the shoreline (1.7 mi from Belém Tower) out to sea, heading west.
How far from shore
- 16 ft deep800 ft
- 33 ft deep0.35 mi
- 66 ft deep0.8 mi
- 164 ft deepnot within 3.1 mi
For fishing, swimming and diving
- Shore fishing. Shallow, gradual bottom (16 ft at 800 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 0.8 mi from shore.
Inside bays, estuaries and harbors the bottom changes a lot from spot to spot (channels and shoals): use this only as a rough guide.
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
Torre de Belém Lighthouse 1.3 mi west
- Built
- 1886
Other lighthouses nearby: Cacilhas Lighthouse (2.6 mi east), Mama Sul (2.7 mi northwest).
Data from Wikidata. For reference only: not for navigation. Wikidata · Sources and licenses
Tides near Belém TowerTides nearby
- Santa Maria de Belém0.4 mi
- Ajuda0.8 mi
- Restelo1.1 mi
- Alcântara1.2 mi
- Prazeres1.5 mi
- Algés2.0 mi
- Santos-o-Velho2.1 mi
- Campo De Ourique2.1 mi
- Pragal2.1 mi
- Almada2.4 mi
Belém Tower at a glance
- Town or city of about 16,546 people. Coordinates: 38.699° N, 9.193° W.
- It is 3.0 mi southwest of Lisbon, the main place in Lisbon. The sun rises at the same time and sets at the same time than in Lisbon.
- The nearest tide station, Cascais, is 12 mi to the west.
- Its coast faces west.
- Beaches and harbors nearby: Doca de Recreio de Santo Amaro (0.8 mi), Doca do Bom Sucesso (1.1 mi), Man-of-War Anchorage (historical) (1.3 mi), Porto de Lisboa (1.4 mi).
Questions about Belém TowerQuestions
What time is high tide today in Belém Tower?
Today in Belém Tower there are high tides at 3:19 am (10.9 ft) and 3:43 pm (10.6 ft) and low tides at 9:28 am and 9:45 pm. Tide coefficient 100.
What time is sunset today in Belém Tower?
At 5:41 pm. There is light until the end of civil twilight, at 6:09 pm.
What time is sunrise tomorrow in Belém Tower?
At 7:00 am. First light comes at 6:02 am.
What phase is the moon today?
Waning gibbous, 92% illuminated. New moon on Mon, Nov 9 · 7:03 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 1:00–3:00 am, Minor 9:21–10:21 am, Major 1:32–3:32 pm, Minor 6:38–7:38 pm. Today's activity is high.
What's the weather like today in Belém Tower?
Fog, from 58 °F to 76 °F, with a light air from the northeast (3 mph) and a 0% chance of rain.
How is the sea today in Belém Tower?
Moderate (Douglas 4): 4.2 ft waves with a period of 12.0 s from the west-northwest. The water is 64.4 °F.
When is the best time to visit Belém Tower?
The best time to visit Belém Tower is from June to August: highs of 77 °F to 82 °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).