Rocinha tides today
- Tide now 2.8 ft ↑ rising · high 4:31 am (3.1 ft)
- Best time to fish 3:10–4:00 pm good day · 7/10
- Beach tomorrow 9:00 am–2:00 pm Poor beach day · 4/10
- Waves · water 4.3 ft · 74 °F moderate · 7.7 s from the southeast
- Wind · air 2 mph · 70 °F from the ENE, gusts 5 · overcast
- Surf today 1.9–2.9 ft Fair day · 4/10 · 5:00–9:00 am
- Sun 5:10 am–6:04 pm 12 h 55 min of daylight
- Moon 84% · 10:09 pm waning gibbous · rises at 10:09 pm
Today in Rocinha there are high tides at 4:31 am (3.1 ft) and 4:14 pm (2.6 ft) and low tide at 11:55 am. Tide coefficient 74. Right now the tide is rising toward the high tide at 4:31 am. The sun rises at 5:10 am and sets at 6:04 pm: 12 h 55 min of daylight. The moon is 84% illuminated (waning gibbous) and rises at 10:09 pm. Major solunar periods run from 1:26 am to 3:26 am and from 1:58 pm to 3:58 pm. The next spring tides arrive from November 9 to 11. The sea is moderate, with 4.3 ft waves. There's a light air from the east-northeast (2 mph). Overcast, 70 °F.
Fishing in Rocinha today
Best time to fish
Solunar activity today: medium- High tide at 4:14 pm, coefficient 66
- Major period 1:58–3:58 pm
- Falling pressure (−0.12 inHg in 24 h), light cross-shore wind (5 mph) and some swell (3.9 ft waves) to stir the water
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 74 (average tides)
Your day at a glance
The best window, 3:10 pm to 4:00 pm, combines the 4:14 pm high tide, a major period, falling pressure and some swell. Also good from 4:50 am to 5:30 am, with the 4:31 am high tide, sunrise, falling pressure and some swell. Also good from 10:50 am to 12:50 pm, with the 11:55 am low tide, falling pressure, a light onshore breeze and some swell.
Species with the most records nearby: whitemouth croaker, Florida pompano, southern kingfish and bonefish. October is one of the months when these are seen most: Florida pompano and southern kingfish. What you can catch
Beach day in Rocinha
Is it a beach day?
- Feels like 80 °F: pleasant
- Cross-shore breeze (5 mph)
- UV 6 (moderate): SPF 30 sunscreen
- Water at 74 °F (nice)
- Low tide at 11:55 am: more sand
- Cloudy (99% cloud cover)
Today, hour by hour
- Swimming Use care · 4.0 ft
4.0 ft waves every 8 s: swim with care and stay where you can stand. 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 74 °F
Nice for swimming.
- Sun & sunscreen UV 6 · SPF 30
Max UV 6 (moderate): SPF 30 sunscreen, reapplied every 2 hours.
- Wind 5 mph
Cross-shore breeze (5 mph).
- Tide & sand 11:55 am
Low tide at 11:55 am: that's when there's the most sand. High tide at 4:31 am and 4:14 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 Rocinha
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Praia do Vidigal 1.1 mi · E
- Parking
- Praia do Pepino 1.3 mi · SW
- Restrooms
- Parking
- Cossetti's Playground 1.7 mi · E
- Lifeguard
- Parking
- Praia do Leblon 1.8 mi · E
- Restrooms
- Parking
- Praia de Ipanema 2.8 mi · E
- Restrooms
- Parking
- Praia da Joatinga 3.2 mi · SW
- Parking
- Praia dos Amores 3.4 mi · SW
- Parking
- Praia do Arpoador 3.6 mi · E
- Restrooms
- 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 Rocinha
Webcams provided by windy.com — add a webcam
Tides in Rocinha
Today's high and low tides
- ▲ Next high tide 4:31 am 3.1 ft · coef. 74
- ▼ Low tide 11:55 am 0.9 ft
- ▲ High tide 4:14 pm 2.6 ft · coef. 66
↑ Rising The tide is rising. 1 h 3 min to high tide at 4:31 am.
Tide coefficient 74 for the 4:31 am high tide and 66 for the 4:14 pm high tide. Average coefficient. The water rises and falls 2.3 ft between the highest high and the lowest low: an average 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 (4.2 ft) and the lowest, on August 12 (-1.0 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 25 to 26 (coefficient 108, 4.1 ft range). The smallest, on October 18 (coefficient 20, 1.4 ft).
Tide and solunar table · this week
| Day | Sun | Tide 1 | Tide 2 | Tide 3 | Tide 4 | Tide 5 | Tide 6 | Coef. | Moon | Major periods | Activity |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Today, Thu 29 | 5:10 am · 6:04 pm | High tide 4:31 am · 3.1 ft | Low tide 11:55 am · 0.9 ft | High tide 4:14 pm · 2.6 ft | — | — | — | Coef. 74 | 84% | Major periods 1:26 am · 1:58 pm | Medium |
| Fri 30 | 5:09 am · 6:05 pm | Low tide 12:06 am · 0.0 ft | High tide 5:17 am · 2.8 ft | Low tide 1:07 pm · 1.2 ft | High tide 4:52 pm · 2.5 ft | — | — | Coef. 55 | 75% | Major periods 2:31 am · 3:02 pm | Low |
| Sat 31 | 5:08 am · 6:05 pm | Low tide 1:21 am · 0.1 ft | High tide 6:09 am · 2.4 ft | Low tide 8:41 am · 2.1 ft | High tide 10:50 am · 2.2 ft | Low tide 2:22 pm · 1.5 ft | High tide 5:38 pm · 2.3 ft | Coef. 37 | 64% | Major periods 3:33 am · 4:03 pm | Medium |
| Sun 1 | 5:08 am · 6:06 pm | Low tide 2:34 am · 0.2 ft | High tide 11:46 am · 2.5 ft | Low tide 3:30 pm · 1.5 ft | High tide 6:37 pm · 2.1 ft | — | — | Coef. 30 | Last quarter | Major periods 4:31 am · 4:59 pm | Medium |
| Mon 2 | 5:07 am · 6:06 pm | Low tide 3:43 am · 0.2 ft | High tide 12:26 pm · 2.7 ft | Low tide 4:29 pm · 1.3 ft | High tide 7:59 pm · 2.1 ft | — | — | Coef. 41 | 42% | Major periods 5:25 am · 5:50 pm | Medium |
| Tue 3 | 5:06 am · 6:07 pm | Low tide 4:45 am · 0.1 ft | High tide 12:52 pm · 2.7 ft | Low tide 5:19 pm · 1.0 ft | High tide 9:56 pm · 2.3 ft | — | — | Coef. 56 | 31% | Major periods 6:14 am · 6:37 pm | Low |
| Wed 4 | 5:06 am · 6:08 pm | Low tide 5:42 am · 0.0 ft | High tide 12:54 pm · 2.6 ft | Low tide 6:01 pm · 0.7 ft | High tide 11:18 pm · 2.7 ft | — | — | Coef. 69 | 22% | Major periods 7:00 am · 7:22 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
Rocinha has no station of its own, so we use the tide at Ilha Fiscal (Rio de Janeiro, TICON-4), 8.3 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 Rocinha
Sea stateSea state: moderate
The waves you may find
- Most commonMost common2.2 ft
- Significant4.3 ft
- Highest expectedHighest8.8 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 8.8 ft. Before heading out, expect waves of up to 8.8 ft.
Wind on the coast and offshore
Cross-shore wind. The coast faces south and the wind blows along the shore: drift and current run parallel to the beach.
Wave height, next 7 daysWaves, next 7 days
Waves stay much the same all week. The biggest waves arrive on Thursday 29: 4.7 ft with a period of 7 s, from the southeast (moderate).
Water temperature
Water temperature →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 78.6 °F by Wednesday 4.
Water warmer than normal for late October (+2.0 °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 3:28 am (local time).
Surf in Rocinha today
Surf today
Fair- 1.9–2.9 ft surf at the shore, a fun size for most surfers
- 2.2 ft swell at 8 s from the southeast, short: weak, messy waves
- Almost no wind (1 mph): glassy water
- Falling tide (low tide at 11:55 am)
- Light: First light 4:46 am · sunrise 5:10 am · sunset 6:04 pm · last light 6:28 pm
- Tide: high 4:31 am (3.1 ft), low 11:55 am (0.9 ft) and high 4:14 pm (2.6 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 74.1 °F: a rash guard or a neoprene top.
- Energy: 52 kJ · Low power
Today’s surf at a glance
The best window, 5:00 am to 9:00 am, has a good size and glassy water, though with a short-period swell. 3:00 pm to 4:00 pm 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 Rocinha today
Diving and snorkeling today
Likely visibility: fair- Slack water around low tide (11:55 am): little current from 11:20 am to 12:20 pm
- 2.2 ft swell at 8 s from the southeast: some surge on the bottom
- Light onshore wind (4 mph)
- 0.4 mph current toward the west-southwest, weak (model)
- Sun high: more light underwater
- Slack water today: high tide 4:31 am (4:16–4:50 am), low tide 11:55 am (11:20 am–12:20 pm), high tide 4:14 pm (3:59–4:30 pm) and low tide 12:06 am (11:10 pm–12:30 am)
- Likely visibility: fair. Swell (up to 5.8 ft at 8 s) over the last few days has stirred up the water. Based on the last 24 hours of data.
- Water at 74.1 °F: a 3 mm wetsuit.
- Snorkeling: better not, with these waves, wind or current.
- Night dive: dark from 6:28 pm. Waning gibbous (84%), rising at 10:09 pm: a bright night.
Your diving day at a glance
The best window, 9:40 am to 12:40 pm, combines slack water at low tide, light wind, weak current and the sun high. Also good from 3:40 pm to 4:40 pm, with slack water at high tide, light wind and weak current.
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
- Magdalena (fore Section) 8.0 mi
- Wilhelmina 8.4 mi
- Cori Brothers 10 mi
- Monumento Natural do Arquipélago das Ilhas Cagarras 5.3 mi
- Área de Proteção Ambiental do Morro do Leme, Urubu e Ilha de Cotunduba 6.2 mi
- XDivers Scuba School 1.8 mi
- Cardume Mergulho 3.5 mi
- Mergulho Carioca - Curso de Mergulho Rio de Janeiro 3.6 mi
- Tiburón Dive Shop 4.3 mi
- Coral de Fogo Diving Experience SSI 5.2 mi
- Mar do Rio 6.9 mi
- TECNOSUB Mergulho Profissional 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 Rocinha
Now in Rocinha
- Low / high
- 70 / 74 °F
- Rain
- 0.48 in · 99%
- Clouds
- 95%
- Humidity
- 89%
- Dew pointDew point
- 66 °F
- Visibility
- 15 mi
- UV indexUV
- 0 · low
- Air qualityAir
- Moderate · 44
- Saharan dust
- No
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 (−0.05 inHg in 3 hours). Over the next 48 hours: −0.16 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 | Overcast | Overcast | Overcast | Overcast | Light drizzle | Heavy drizzle | Light drizzle | Light rain |
| Temperature | 70° | 70° | 70° | 74° | 72° | 71° | 71° | 71° |
| Wind (mph) | 4 ENE | 2 ENE | 1 ESE | 2 SE | 5 SSE | 5 E | 3 ENE | 5 ENE |
| Gusts | 9 | 5 | 4 | 6 | 11 | 11 | 9 | 11 |
| Waves | 4.7 ft | 4.4 ft | 4.1 ft | 3.9 ft | 3.8 ft | 3.9 ft | 4.1 ft | 4.2 ft |
| Rain | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.01 in | 0.04 in | 0.02 in | 0.05 in |
- 3:00 am 70° 2 ENE 4.4 ft
- 6:00 am 70° 1 ESE 4.1 ft
- 9:00 am 74° 2 SE 3.9 ft
- 12:00 pm 72° 5 SSE 3.8 ft
- 3:00 pm 71° 5 E 3.9 ft
- 6:00 pm 71° 3 ENE 4.1 ft
- 9:00 pm 71° 5 ENE 4.2 ft
- 12:00 am 71° 1 NE 4.2 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 29 | 70 / 74 °F | 5 mph E | 4.7 ft | 4:31 am · 4:14 pm | |
| Fri 30 | 71 / 79 °F | 7 mph SSW | 4.2 ft | 5:17 am · 4:52 pm | |
| Sat 31 | 69 / 75 °F | 10 mph SW | 4.1 ft | 6:09 am · 10:50 am · 5:38 pm | |
| Sun 1 | 71 / 75 °F | 7 mph SSW | 4.0 ft | 11:46 am · 6:37 pm | |
| Mon 2 | 70 / 80 °F | 11 mph E | 3.8 ft | 12:26 pm · 7:59 pm | |
| Tue 3 | 72 / 82 °F | 7 mph SW | 3.7 ft | 12:52 pm · 9:56 pm | |
| Wed 4 | 74 / 83 °F | 8 mph ENE | 3.0 ft | 12:54 pm · 11:18 pm | |
| Thu 5 | 76 / 87 °F | 4 mph W | 2.1 ft | 12:29 pm | |
| Fri 6 | 77 / 92 °F | 6 mph NE | 2.4 ft | 12:04 am · 12:39 pm | |
| Sat 7 | 77 / 90 °F | 14 mph NNW | 2.0 ft | 12:45 am · 1:06 pm | |
| Sun 8 | 73 / 83 °F | 17 mph SW | 4.1 ft | 1:25 am · 1:38 pm | |
| Mon 9 | 71 / 75 °F | 10 mph SSW | 4.1 ft | 2:05 am · 2:11 pm | |
| Tue 10 | 70 / 73 °F | 9 mph SE | 3.3 ft | 2:44 am · 2:44 pm | |
| Wed 11 | 69 / 72 °F | 10 mph ENE | 2.8 ft | 3:23 am · 3:17 pm |
- Fri 30 Light rain 71° / 79° 4.2 ft
- Sat 31 Light drizzle 69° / 75° 4.1 ft
- Sun 1 Light drizzle 71° / 75° 4.0 ft
- Mon 2 Light drizzle 70° / 80° 3.8 ft
- Tue 3 Light drizzle 72° / 82° 3.7 ft
- Wed 4 Overcast 74° / 83° 3.0 ft
- Thu 5 Overcast 76° / 87° 2.1 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 (−7.3 °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 3:28 am (local time).
The sun in Rocinha
Sunrise and sunset
- First light 4:19 am
- Full dark 6:55 pm
- Civil dawn 4:46 am
- Civil dusk 6:28 pm
- Solar noon 11:37 am (81° high)
- Daylight 12 h 55 min (+1 min)
- Evening golden hour 5:34 pm
- Full dark 6:55 pm
Golden hour and the day-night map
Today the sun is 92,332,649 mi away and looks 32′ 11″ across.
The moon in Rocinha
Moon phase and position
Today the moon is 226,718 mi away and looks 32′ 44″ across.
Solunar periods
Today's activity: medium- 1:26–3:26 am Major · the moon passes overhead · high activity
- 1:58–3:58 pm Major · the moon passes underfoot · high activity
- 7:17–8:17 am Minor · moonset · medium activity
- 9:39–10:39 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 · 5:29 pmNov 1 in 3 days
- New moon Mon, Nov 9 · 4:03 amNov 9 in 11 days
- First quarter Tue, Nov 17 · 8:48 amNov 17 in 19 days
- Full moon Tue, Nov 24 · 11:54 amNov 24 in 26 days
Next perigee (the moon at its closest to Earth): November 25, 223,281 mi away.
Where to fish in Rocinha
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Píer João Gilberto 2.3 mi
- Píer André Midani 3.2 mi
- Colônia de pescadores da Vila do Pinheiro 8.5 mi
- Boat ramp 2.6 mi
- Boat ramp 3.5 mi
- Boat ramp 5.5 mi
- Clube de Regatas Guanabara 5.2 mi
- Marina da Glória 7.0 mi
- Empório Do Pescador RJ 5.1 mi
- Boa Isca Pesca Esportiva 5.1 mi
- Lírio Pesca 6.1 mi
- Posto Iate 5.5 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 0.3 mi from shore and 33 ft at 0.35 mi.
From the shoreline (0.75 mi from Rocinha) out to sea, heading south.
How far from shore
- 16 ft deep0.3 mi
- 33 ft deep0.35 mi
- 66 ft deep0.85 mi
- 164 ft deepnot within 3.1 mi
For fishing, swimming and diving
- Shore fishing. Shallow, gradual bottom (16 ft at 0.3 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 0.35 mi and 66 ft at 0.85 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 RocinhaTides nearby
- Vidigal0.7 mi
- São Conrado1.4 mi
- Leblon1.7 mi
- Ipanema3.0 mi
- Copacabana4.3 mi
- Botafogo5.0 mi
- Leme5.5 mi
- Estácio5.7 mi
- Catete6.2 mi
- Cidade Nova6.2 mi
Rocinha at a glance
- Town or city of about 24,543 people. Coordinates: 22.989° S, 43.249° W.
- It is 7.1 mi southwest of Rio de Janeiro, the main place in Río de Janeiro. The sun rises at the same time and sets at the same time than in Rio de Janeiro.
- The nearest tide station, Ilha Fiscal, is 8.3 mi to the northeast.
- Its coast faces south.
- Beaches and harbors nearby: Praia do Vidigal (1.1 mi), Praia da Gávea (1.3 mi), Praia do Leblon (1.9 mi), Praia da Joatinga (3.2 mi).
Questions about RocinhaQuestions
What time is high tide today in Rocinha?
Today in Rocinha there are high tides at 4:31 am (3.1 ft) and 4:14 pm (2.6 ft) and low tide at 11:55 am. Tide coefficient 74.
What time is sunset today in Rocinha?
At 6:04 pm. There is light until the end of civil twilight, at 6:28 pm.
What time is sunrise tomorrow in Rocinha?
At 5:09 am. First light comes at 4:18 am.
What phase is the moon today?
Waning gibbous, 84% illuminated. New moon on Mon, Nov 9 · 4:03 am.
When are the next spring tides?
From November 9 to 11.
What are today's solunar periods?
Major 1:26–3:26 am, Minor 7:17–8:17 am, Major 1:58–3:58 pm, Minor 9:39–10:39 pm. Today's activity is medium.
What's the weather like today in Rocinha?
Light rain, from 70 °F to 74 °F, with a light air from the east-northeast (2 mph) and a 99% chance of rain.
How is the sea today in Rocinha?
Moderate (Douglas 4): 4.3 ft waves with a period of 7.7 s from the southeast. The water is 74.3 °F.
When is the best time to visit Rocinha?
The best time to visit Rocinha is from June to August: highs of 79 °F to 80 °F, about 6 rainy days a month and 5 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: Ilha Fiscal (Rio de Janeiro) 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).