São Luís tides today
- Tide now 15.0 ft ↑ rising · high 8:31 pm (17.3 ft)
- Best time tomorrow 1:50–3:30 am average day · 6/10
- Water 85 °F
- Wind · air 10 mph · 81 °F from the NE, gusts 21 · overcast
- Sun 5:35 am–5:47 pm 12 h 12 min of daylight
- Moon 92% · 8:20 pm waning gibbous · rises at 8:20 pm
- Pressure 29.88 inHg steady · steady tomorrow
- Coefficient 86 average coefficient · spring tides Oct 26–28
Today in São Luís there are high tides at 8:17 am (16.9 ft) and 8:31 pm (17.3 ft) and low tides at 2:06 am and 2:20 pm. Tide coefficient 86. Right now the tide is rising toward the high tide at 8:31 pm. The sun rises at 5:35 am and sets at 5:47 pm: 12 h 12 min of daylight. The moon is 92% illuminated (waning gibbous) and rises at 8:20 pm. Major solunar periods run from 12:27 am to 2:27 am and from 12:58 pm to 2:58 pm. The next spring tides arrive from October 26 to 28. There's a gentle breeze from the northeast (10 mph). Overcast, 81 °F.
Fishing in São Luís today
Best time to fish
Solunar activity today: medium- Low tide at 2:20 pm
- Major period 12:58–2:58 pm
- Steady pressure (29.88 inHg) and light onshore wind (11 mph)
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 86 (average tides)
Your day at a glance
The best window, 1:20 pm to 3:00 pm, combines the 2:20 pm low tide, a major period and a light onshore breeze. Also good from 1:10 am to 2:30 am, with the 2:06 am low tide, a major period and a light onshore breeze. Also good from 7:20 am to 8:10 am, with the 8:17 am high tide, moonset and a light onshore breeze.
Species with the most records nearby: Florida pompano, ladyfish, tarpon and common snook. What you can catch
Tides in São Luís
Today's high and low tides
- ▼ Low tide 2:06 am -0.8 ft
- ▲ High tide 8:17 am 16.9 ft · coef. 86
- ▼ Low tide 2:20 pm 0.3 ft
- ▲ Next high tide 8:31 pm 17.3 ft · coef. 84
↑ Rising The tide is rising. 1 h 38 min to high tide at 8:31 pm.
Tide coefficient 86 for the 8:17 am high tide and 84 for the 8:31 pm high tide. Average coefficient. The water rises and falls 18.1 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 March 19 (18.2 ft) and the lowest, on April 18 (-1.6 ft).
Semidiurnal: two high and two low tides a day, of similar height.
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 25 to 27 (coefficient 89, 18.5 ft range). The smallest, from October 18 to 19 (coefficient 40, 8.8 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 | 5:35 am · 5:47 pm | Low tide 2:06 am · -0.8 ft | High tide 8:17 am · 16.9 ft | Low tide 2:20 pm · 0.3 ft | High tide 8:31 pm · 17.3 ft | Coef. 86 | 92% | Major periods 12:27 am · 12:58 pm | Medium |
| Thu 29 | 5:35 am · 5:47 pm | Low tide 2:50 am · -0.4 ft | High tide 9:02 am · 16.2 ft | Low tide 3:04 pm · 1.0 ft | High tide 9:16 pm · 16.7 ft | Coef. 80 | 84% | Major periods 1:30 am · 2:03 pm | Medium |
| Fri 30 | 5:35 am · 5:47 pm | Low tide 3:37 am · 0.3 ft | High tide 9:50 am · 15.4 ft | Low tide 3:52 pm · 1.9 ft | High tide 10:07 pm · 15.9 ft | Coef. 73 | 75% | Major periods 2:35 am · 3:07 pm | Low |
| Sat 31 | 5:35 am · 5:47 pm | Low tide 4:29 am · 1.3 ft | High tide 10:46 am · 14.6 ft | Low tide 4:47 pm · 2.8 ft | High tide 11:07 pm · 15.1 ft | Coef. 64 | 64% | Major periods 3:38 am · 4:07 pm | Medium |
| Sun 1 | 5:35 am · 5:47 pm | Low tide 5:29 am · 2.2 ft | High tide 11:53 am · 14.0 ft | Low tide 5:53 pm · 3.6 ft | — | Coef. 56 | Last quarter | Major periods 4:36 am · 5:03 pm | Medium |
| Mon 2 | 5:35 am · 5:47 pm | High tide 12:19 am · 14.6 ft | Low tide 6:41 am · 2.9 ft | High tide 1:14 pm · 13.9 ft | Low tide 7:11 pm · 3.8 ft | Coef. 54 | 42% | Major periods 5:29 am · 5:54 pm | Medium |
| Tue 3 | 5:35 am · 5:47 pm | High tide 1:41 am · 14.6 ft | Low tide 8:00 am · 2.8 ft | High tide 2:32 pm · 14.6 ft | Low tide 8:30 pm · 3.2 ft | Coef. 58 | 31% | Major periods 6:18 am · 6:42 pm | Low |
▲ 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
São Luís has no station of its own, so we use the tide at Ponta da Madeira (São Luís, TICON-4), 5.7 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 São Luís
Sea state
The wave model doesn't reach São Luís: it's on inland water (an estuary, sound or sheltered bay) or far from the open sea. Wind is still available right here.
Wind on the coast and offshore
Cross-onshore wind. The coast faces north 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.
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.
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 6:53 pm (local time).
Weather in São Luís
Now in São Luís
- Low / high
- 80 / 88 °F
- Rain
- 0.12 in · 100%
- Clouds
- 100%
- Humidity
- 81%
- Dew pointDew point
- 75 °F
- Visibility
- 13 mi
- UV indexUV
- 0 · low
- Air qualityAir
- Fair · 21
- 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 (+0.02 inHg in 3 hours). Over the next 48 hours: −0.06 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 | Partly cloudy | Overcast | Overcast | Partly cloudy | Light drizzle | Drizzle | Overcast | Overcast |
| Temperature | 80° | 80° | 80° | 87° | 88° | 85° | 82° | 81° |
| Wind (mph) | 9 NE | 9 NE | 9 NE | 11 ENE | 10 NE | 11 NE | 10 NE | 10 NE |
| Gusts | 17 | 17 | 16 | 23 | 27 | 26 | 22 | 19 |
| Rain | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.02 in | 0.02 in | 0.00 in | 0.00 in |
- 6:00 pm 82° 10 NE
- 9:00 pm 81° 10 NE
- 12:00 am 81° 10 NE
- 3:00 am 80° 9 ENE
- 6:00 am 80° 9 ENE
- 9:00 am 86° 11 ENE
- 12:00 pm 87° 12 NE
- 3:00 pm 85° 14 NE
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | High tides |
|---|---|---|---|---|
| Today · 28 | 80 / 88 °F | 11 mph NE | 8:17 am · 8:31 pm | |
| Thu 29 | 80 / 87 °F | 14 mph NE | 9:02 am · 9:16 pm | |
| Fri 30 | 80 / 88 °F | 13 mph ENE | 9:50 am · 10:07 pm | |
| Sat 31 | 79 / 89 °F | 13 mph NE | 10:46 am · 11:07 pm | |
| Sun 1 | 80 / 90 °F | 13 mph NE | 11:53 am | |
| Mon 2 | 81 / 90 °F | 15 mph ENE | 12:19 am · 1:14 pm | |
| Tue 3 | 80 / 88 °F | 15 mph NE | 1:41 am · 2:32 pm | |
| Wed 4 | 80 / 88 °F | 14 mph NE | 2:58 am · 3:35 pm | |
| Thu 5 | 80 / 88 °F | 13 mph NE | 3:59 am · 4:26 pm | |
| Fri 6 | 80 / 88 °F | 15 mph NE | 4:50 am · 5:10 pm | |
| Sat 7 | 80 / 88 °F | 13 mph NE | 5:35 am · 5:50 pm | |
| Sun 8 | 81 / 88 °F | 11 mph NE | 6:16 am · 6:27 pm | |
| Mon 9 | 81 / 88 °F | 12 mph NE | 6:53 am · 7:03 pm | |
| Tue 10 | 81 / 88 °F | 13 mph ENE | 7:28 am · 7:37 pm |
- Thu 29 Light drizzle 80° / 87° 14 mph
- Fri 30 Overcast 80° / 88° 13 mph
- Sat 31 Mainly clear 79° / 89° 13 mph
- Sun 1 Overcast 80° / 90° 13 mph
- Mon 2 Overcast 81° / 90° 15 mph
- Tue 3 Partly cloudy 80° / 88° 15 mph
- Wed 4 Overcast 80° / 88° 14 mph
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.
- Normal Today, cooler than normal for late October (−3.0 °F; normal high: 91 °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 6:53 pm (local time).
The sun in São Luís
Sunrise and sunset
- First light 4:49 am
- Full dark 6:33 pm
- Civil dawn 5:14 am
- Civil dusk 6:08 pm
- Solar noon 11:41 am (79° high)
- Daylight 12 h 12 min (+0 min)
- Evening golden hour 5:19 pm
- Full dark 6:33 pm
Golden hour and the day-night map
Today the sun is 92,356,854 mi away and looks 32′ 11″ across.
The moon in São Luís
Moon phase and position
Today the moon is 226,432 mi away and looks 32′ 47″ across.
Solunar periods
Today's activity: medium- 12:27–2:27 am Major · the moon passes overhead · high activity
- 12:58–2:58 pm Major · the moon passes underfoot · high activity
- 7:06–8:06 am Minor · moonset · medium activity
- 7:50–8:50 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 · 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 São Luís
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Jetty 2.2 mi
- PESQUEIRO ESPIGÃO COSTEIRO 2.4 mi
- Boat ramp 1.9 mi
- Rampa da AVEN 1.9 mi
- Boat ramp 2.0 mi
- Marina Ilha Boat 1.9 mi
- Porto do Itaqui 5.5 mi
- Pesca e Companhia 0.4 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.
Nearest lighthouse
Ponta de Sao Marcos 2.9 mi north
- Light
- A white flash every 10 s · Fl W 10s
- Range
- 23 nautical miles (26 mi)
- Light height
- 118 ft above sea level
- Tower height
- 26 ft
Other lighthouses nearby: Ilha do Medo (4.4 mi west).
Light details: NGA List of Lights (USA); the rest from Wikidata. For reference only: not for navigation. Wikidata · Sources and licenses
Tides near São LuísTides nearby
- Alcântara12 mi
- Paço do Lumiar13 mi
- Raposa16 mi
- São José de Ribamar17 mi
- Icatu24 mi
- Axixá27 mi
- Rosário29 mi
- Morros29 mi
- Bequimão34 mi
- Guimarães34 mi
São Luís at a glance
- Town or city of about 917,237 people. Coordinates: 2.530° S, 44.303° W.
- The nearest tide station, Ponta da Madeira, is 5.7 mi to the southwest.
- Its coast faces north.
Questions about São LuísQuestions
What time is high tide today in São Luís?
Today in São Luís there are high tides at 8:17 am (16.9 ft) and 8:31 pm (17.3 ft) and low tides at 2:06 am and 2:20 pm. Tide coefficient 86.
What time is sunset today in São Luís?
At 5:47 pm. There is light until the end of civil twilight, at 6:08 pm.
What time is sunrise tomorrow in São Luís?
At 5:35 am. First light comes at 4:49 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 12:27–2:27 am, Minor 7:06–8:06 am, Major 12:58–2:58 pm, Minor 7:50–8:50 pm. Today's activity is medium.
What's the weather like today in São Luís?
Drizzle, from 80 °F to 88 °F, with a gentle breeze from the northeast (10 mph) and a 100% chance of rain.
When is the best time to visit São Luís?
The best time to visit São Luís is from August to November: highs of 91 °F, about 3 rainy days a month and 6 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: Ponta da Madeira (São Luís) 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).