Rio das Ostras tides today
- Tide now -1.8 ft ↓ falling · low 10:13 pm (-2.0 ft)
- Best time to fish 9:10–11:10 pm average day · 6/10
- Beach tomorrow 9:00 am–12:00 pm Poor beach day · 4/10
- Waves · water 3.2 ft · 76 °F slight · 6.0 s from the east-southeast
- Wind · air 9 mph · 71 °F from the NE, gusts 21 · overcast
- Surf tomorrow 2.0–3.0 ft Poor day · 1/10 · 8:00 am–12:00 pm
- Sun 5:06 am–5:58 pm 12 h 52 min of daylight
- Moon 92% · 8:57 pm waning gibbous · rises at 8:57 pm
Today in Rio das Ostras there are high tides at 3:42 am (2.1 ft) and 3:33 pm (1.4 ft) and low tides at 10:12 am and 10:13 pm. Tide coefficient 95. Right now the tide is falling toward the low tide at 10:13 pm. The sun rises at 5:06 am and sets at 5:58 pm: 12 h 52 min of daylight. The moon is 92% illuminated (waning gibbous) and rises at 8:57 pm. Major solunar periods run from 12:17 am to 2:17 am and from 12:48 pm to 2:48 pm. The next spring tides arrive from October 26 to 28. The sea is slight, with 3.2 ft waves. There's a gentle breeze from the northeast (9 mph). Overcast, 71 °F.
Fishing in Rio das Ostras today
Best time to fish
Solunar activity today: medium- Low tide at 10:13 pm
- Minor period 8:27–9:27 pm (moonrise)
- Falling pressure (−0.14 inHg in 24 h), light onshore wind (9 mph) and some swell (3.2 ft waves) to stir the water
- 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, 9:10 pm to 11:10 pm, combines the 10:13 pm low tide, moonrise, falling pressure, a light onshore breeze and some swell. Also good from 9:10 am to 11:10 am, with the 10:12 am low tide, a light onshore breeze and some swell. Also good from 5:30 pm to 6:20 pm, with sunset, falling pressure, a light onshore breeze and some swell.
Species with the most records nearby: bluefish, gray triggerfish, red porgy and permit. What you can catch
Beach day in Rio das Ostras
Is it a beach day?
- Feels like 75 °F: mild
- UV 5 (moderate): SPF 30 sunscreen
- Water at 76 °F (warm)
- Low tide at 10:12 am: more sand
- Cloudy (88% cloud cover)
- Moderate onshore wind (15 mph): choppy water
Today, hour by hour
- Swimming Use care · 2.8 ft
2.8 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 76 °F
Warm: very pleasant.
- Sun & sunscreen UV 5 · SPF 30
Max UV 5 (moderate): SPF 30 sunscreen, reapplied every 2 hours.
- Wind 15 mph
Moderate onshore wind (15 mph).
- Tide & sand 10:13 pm
Low tide at 10:12 am and 10:13 pm: that's when there's the most sand. High tide at 3:42 am and 3:33 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 Rio das Ostras
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Praia do Centro 0.1 mi · SE
- Parking
- Praia do Pica-pau 0.5 mi · SW
- Praia do Cemitério 0.6 mi · SE
- Praia da Joana 0.8 mi · SE
- Praia Virgem 1.1 mi · SE
- Praia das Areias Negras 1.2 mi · E
- Praia Costa Azul 1.9 mi · E
- Costazul beach 3.0 mi · NE
- Lifeguard
- Parking
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 Rio das Ostras
Webcams provided by windy.com — add a webcam
Tides in Rio das Ostras
Today's high and low tides
- ▲ High tide 3:42 am 2.1 ft · coef. 95
- ▼ Low tide 10:12 am -1.3 ft
- ▲ High tide 3:33 pm 1.4 ft · coef. 88
- ▼ Next low tide 10:13 pm -2.0 ft
↓ Falling The tide is falling. 1 h 11 min to low tide at 10:13 pm.
Tide coefficient 95 for the 3:42 am high tide and 88 for the 3:33 pm high tide. Spring tides. The water rises and falls 4.1 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 September 27 (2.4 ft) and the lowest, on December 24 (-2.7 ft).
Mixed: two high and two low tides a day, but of quite different heights.
Heights above mean sea level. Astronomical prediction: wind and air pressure can raise or lower the water by a few inches, and more in a storm. Not for navigation. mean sea level
Tide coefficient and range in October
The biggest tides of the month came from October 25 to 26 (coefficient 109, 4.4 ft range). The smallest, on October 18 (coefficient 20, 1.2 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 | 5:06 am · 5:58 pm | High tide 3:42 am · 2.1 ft | Low tide 10:12 am · -1.3 ft | High tide 3:33 pm · 1.4 ft | Low tide 10:13 pm · -2.0 ft | Coef. 95 | 92% | Major periods 12:17 am · 12:48 pm | Medium |
| Thu 29 | 5:05 am · 5:58 pm | High tide 4:28 am · 1.8 ft | Low tide 10:56 am · -0.8 ft | High tide 4:07 pm · 1.2 ft | Low tide 11:01 pm · -1.8 ft | Coef. 80 | 84% | Major periods 1:21 am · 1:53 pm | Medium |
| Fri 30 | 5:04 am · 5:59 pm | High tide 5:21 am · 1.3 ft | Low tide 11:49 am · -0.4 ft | High tide 4:46 pm · 1.0 ft | — | Coef. 62 | 75% | Major periods 2:25 am · 2:57 pm | Low |
| Sat 31 | 5:04 am · 5:59 pm | Low tide 12:04 am · -1.5 ft | High tide 6:32 am · 0.9 ft | Low tide 1:03 pm · -0.1 ft | High tide 5:36 pm · 0.8 ft | Coef. 44 | 64% | Major periods 3:28 am · 3:57 pm | Medium |
| Sun 1 | 5:03 am · 6:00 pm | Low tide 1:31 am · -1.3 ft | High tide 9:03 am · 0.7 ft | Low tide 2:38 pm · 0.0 ft | High tide 6:56 pm · 0.6 ft | Coef. 32 | Last quarter | Major periods 4:26 am · 4:53 pm | Medium |
| Mon 2 | 5:02 am · 6:01 pm | Low tide 3:07 am · -1.2 ft | High tide 11:02 am · 0.8 ft | Low tide 4:01 pm · -0.2 ft | High tide 9:14 pm · 0.7 ft | Coef. 39 | 42% | Major periods 5:19 am · 5:44 pm | Medium |
| Tue 3 | 5:02 am · 6:01 pm | Low tide 4:25 am · -1.3 ft | High tide 11:48 am · 1.0 ft | Low tide 4:59 pm · -0.4 ft | High tide 10:54 pm · 1.0 ft | Coef. 53 | 31% | Major periods 6:08 am · 6:32 pm | Low |
▲ high tide · ▼ low tide · heights above mean sea level. Major periods: start time; they last 2 hours. Activity: based on the moon phase and the solunar periods.
Where this tide comes from
Rio das Ostras has no tide station nearby: its tide is calculated with the global EOT20 model, from the nearest model cells offshore (the first one 4.8 mi away). It may differ from the real tide by a few minutes and inches, and more with wind or storms. Heights are above mean sea level, not chart datum, so low tides are negative. Not for navigation.
Model attribution: Hart-Davis et al. (2021), EOT20 global empirical ocean tide model, SEANOE, https://doi.org/10.17882/79489, CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Modified by TidePlanet: constants interpolated from the nearest model cells offshore; heights above mean sea level.
The sea at Rio das Ostras
Sea stateSea state: slight
The waves you may find
- Most commonMost common1.6 ft
- Significant3.2 ft
- Highest expectedHighest6.6 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 6.6 ft. Before heading out, expect waves of up to 6.6 ft.
Wind on the coast and offshore
Cross-onshore wind. The coast faces east 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 Tuesday 3: 4.3 ft with a period of 6 s, from the east (moderate).
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 warms over the next few days: about 78.1 °F by Tuesday 3.
Water warmer than normal for late October (+4.1 °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 9:02 pm (local time).
Surf in Rio das Ostras today
Surf today
Fair- 1.8–2.8 ft surf at the shore, a fun size for most surfers
- 2.5 ft swell at 6 s from the south-southeast, short: weak, messy waves
- Almost no wind (3 mph): glassy water
- Falling tide (low tide at 10:12 am)
- Light: First light 4:42 am · sunrise 5:06 am · sunset 5:58 pm · last light 6:21 pm
- Tide: high 3:42 am (2.1 ft), low 10:12 am (-1.3 ft), high 3:33 pm (1.4 ft) and low 10:13 pm (-2.0 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 76.1 °F: boardshorts or a swimsuit and a rash guard.
- Energy: 45 kJ · Low power
Today’s surf at a glance
The best window, 5:00 am to 7:00 am, has a good size and glassy water, though with a short-period swell. 8:00 am to 9:00 am can also work, with a good size, 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 Rio das Ostras today
Diving and snorkeling today
Likely visibility: good- Slack water around low tide (10:12 am): little current from 9:50 am to 10:30 am
- 2.6 ft swell at 6 s from the southeast: some surge on the bottom
- Light onshore wind (10 mph)
- 0.3 mph current toward the southwest, weak (model)
- Sun high: more light underwater
- Slack water today: high tide 3:42 am (3:20–4:00 am), low tide 10:12 am (9:50–10:30 am), high tide 3:33 pm (3:10–4:00 pm) and low tide 10:13 pm (9:50–10:40 pm)
- Likely visibility: good. Swell (up to 3.2 ft at 6 s) over the last few days has stirred up the water. Based on the last 24 hours of data.
- Water at 76.1 °F: a 3 mm wetsuit.
- Snorkeling: doable, with some waves or wind.
- Night dive: dark from 6:21 pm. Waning gibbous (92%), rising at 8:57 pm: a bright night.
Your diving day at a glance
The best window, 9:10 am to 11:10 am, combines slack water at low tide, light wind, weak current and the sun high. Also worth a look from 2:50 pm to 4:20 pm, with slack water at high tide and weak current, though with moderate wind.
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
We have no dive sites, dive shops or wrecks on record within 12 mi of Rio das Ostras.
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
Sites: © OpenStreetMap contributors (ODbL).
Weather in Rio das Ostras
Now in Rio das Ostras
- Low / high
- 66 / 75 °F
- Rain
- 0.00 in · 4%
- Clouds
- 99%
- Humidity
- 75%
- Dew pointDew point
- 62 °F
- Visibility
- 15 mi
- UV indexUV
- 0 · low
- Air qualityAir
- Fair · 34
- 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). Over the next 48 hours: −0.25 inHg. 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 | Overcast | Overcast | Overcast | Overcast | Overcast | Partly cloudy | Overcast | Overcast |
| Temperature | 67° | 66° | 67° | 74° | 75° | 74° | 71° | 71° |
| Wind (mph) | 3 NNE | 3 NNE | 4 N | 9 NE | 10 NE | 15 E | 12 ENE | 9 NE |
| Gusts | 6 | 7 | 9 | 23 | 21 | 31 | 26 | 21 |
| Waves | 3.1 ft | 3.0 ft | 2.8 ft | 2.8 ft | 2.8 ft | 3.0 ft | 3.2 ft | 3.2 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 71° 9 NE 3.2 ft
- 12:00 am 69° 9 NNE 3.1 ft
- 3:00 am 69° 10 NE 3.0 ft
- 6:00 am 69° 11 NE 2.9 ft
- 9:00 am 77° 12 NE 2.8 ft
- 12:00 pm 80° 14 E 3.2 ft
- 3:00 pm 78° 14 E 3.5 ft
- 6:00 pm 74° 13 ENE 3.6 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 28 | 66 / 75 °F | 15 mph NE | 3.2 ft | 3:42 am · 3:33 pm | |
| Thu 29 | 69 / 80 °F | 15 mph ENE | 3.6 ft | 4:28 am · 4:07 pm | |
| Fri 30 | 69 / 78 °F | 14 mph NE | 3.3 ft | 5:21 am · 4:46 pm | |
| Sat 31 | 70 / 81 °F | 13 mph SW | 3.1 ft | 6:32 am · 5:36 pm | |
| Sun 1 | 69 / 78 °F | 9 mph S | 3.8 ft | 9:03 am · 6:56 pm | |
| Mon 2 | 68 / 80 °F | 11 mph ENE | 4.1 ft | 11:02 am · 9:14 pm | |
| Tue 3 | 72 / 84 °F | 8 mph NNE | 4.3 ft | 11:48 am · 10:54 pm | |
| Wed 4 | 71 / 89 °F | 6 mph SSE | 3.7 ft | 12:18 pm · 11:47 pm | |
| Thu 5 | 74 / 91 °F | 7 mph SSW | 3.4 ft | 12:41 pm | |
| Fri 6 | 74 / 92 °F | 11 mph NE | 3.1 ft | 12:28 am · 1:00 pm | |
| Sat 7 | 76 / 92 °F | 8 mph WSW | 3.1 ft | 1:03 am · 1:19 pm | |
| Sun 8 | 72 / 92 °F | 15 mph SW | 3.9 ft | 1:36 am · 1:40 pm | |
| Mon 9 | 72 / 77 °F | 15 mph SW | 4.2 ft | 2:08 am · 2:03 pm | |
| Tue 10 | 68 / 75 °F | 8 mph SSE | 3.4 ft | 2:40 am · 2:29 pm |
- Thu 29 Light rain 69° / 80° 3.6 ft
- Fri 30 Rain 69° / 78° 3.3 ft
- Sat 31 Light drizzle 70° / 81° 3.1 ft
- Sun 1 Overcast 69° / 78° 3.8 ft
- Mon 2 Light showers 68° / 80° 4.1 ft
- Tue 3 Heavy drizzle 72° / 84° 4.3 ft
- Wed 4 Overcast 71° / 89° 3.7 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.
- Normal Today, cooler than normal for late October (−7.0 °F; normal high: 82 °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 9:02 pm (local time).
The sun in Rio das Ostras
Sunrise and sunset
- First light 4:15 am
- Full dark 6:49 pm
- Civil dawn 4:42 am
- Civil dusk 6:21 pm
- Solar noon 11:32 am (81° high)
- Daylight 12 h 52 min (+1 min)
- Evening golden hour 5:27 pm
- Full dark 6:49 pm
Golden hour and the day-night map
Today the sun is 92,357,014 mi away and looks 32′ 11″ across.
The moon in Rio das Ostras
Moon phase and position
Today the moon is 226,432 mi away and looks 32′ 47″ across.
Solunar periods
Today's activity: medium- 12:17–2:17 am Major · the moon passes overhead · high activity
- 12:48–2:48 pm Major · the moon passes underfoot · high activity
- 6:13–7:13 am Minor · moonset · medium activity
- 8:27–9:27 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 Rio das Ostras
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Pier Pescador Antonio Miranda 0.3 mi
- Píer de Costazul 1.8 mi
- Boat ramp 5.3 mi
- Marina 5.0 mi
- Iate Clube Barra de Sao Joao 5.4 mi
- Amigo Do Pescador 0.7 mi
- Fardas Pesca e Cia 0.8 mi
- Barracuda Pesca 8.2 mi
- Barracuda Pesca 8.8 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
Deepens quicklyThe bottom deepens quickly: 33 ft of water 1,000 ft from shore.
From the shoreline (1.4 mi from Rio das Ostras) out to sea, heading east.
How far from shore
- 16 ft deep100 ft
- 33 ft deep1,000 ft
- 66 ft deepnot within 3.1 mi
- 164 ft deepnot within 3.1 mi
For fishing, swimming and diving
- Shore fishing. Deep water close in: about 30 ft just 330 ft out. Good for casting from rocks, jetties or the beach itself; current and surf hit harder here.
- Swimming. The bottom drops quickly near the shore and you are soon out of your depth. Keep an eye on kids and weak swimmers.
- Diving. 33 ft deep 1,000 ft from shore; 66 ft is far out (beyond 3.1 mi): for deeper dives, 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.
Tides near Rio das OstrasTides nearby
- Costa14 mi
- Macaé14 mi
- Armação dos Búzios16 mi
- Saco Fora18 mi
- Manguinhos (Armação dos Búzios)18 mi
- Itapeba20 mi
- Cabo Frio25 mi
- Arraial do Cabo31 mi
- Rodagem32 mi
- Praia Seca36 mi
Rio das Ostras at a glance
- Town or city of about 168,099 people. Coordinates: 22.527° S, 41.945° W.
- It is 83 mi east of Rio de Janeiro, the main place in Río de Janeiro. The sun rises 5 min earlier and sets 5 min earlier than in Rio de Janeiro.
- Its coast faces east.
- Beaches and harbors nearby: Praia do Bosque (0.3 mi), Praia do Cemitério (0.6 mi), Praia Brava (0.8 mi).
Questions about Rio das OstrasQuestions
What time is high tide today in Rio das Ostras?
Today in Rio das Ostras there are high tides at 3:42 am (2.1 ft) and 3:33 pm (1.4 ft) and low tides at 10:12 am and 10:13 pm. Tide coefficient 95.
What time is sunset today in Rio das Ostras?
At 5:58 pm. There is light until the end of civil twilight, at 6:21 pm.
What time is sunrise tomorrow in Rio das Ostras?
At 5:05 am. First light comes at 4:14 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 12:17–2:17 am, Minor 6:13–7:13 am, Major 12:48–2:48 pm, Minor 8:27–9:27 pm. Today's activity is medium.
What's the weather like today in Rio das Ostras?
Overcast, from 66 °F to 75 °F, with a gentle breeze from the northeast (9 mph) and a 4% chance of rain.
How is the sea today in Rio das Ostras?
Slight (Douglas 3): 3.2 ft waves with a period of 6.0 s from the east-southeast. The water is 76.3 °F.
When is the best time to visit Rio das Ostras?
The best time to visit Rio das Ostras is from June to August: highs of 79 °F, about 6 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: global EOT20 model (DGFI-TUM), licensed CC BY 4.0; constants for this place computed by TidePlanet from the nearest model cells offshore. Sun and moon: our own calculation with astronomy-engine. Places: GeoNames (CC BY 4.0). Coastline: © OpenStreetMap contributors (ODbL).