Beach forecast for Praia do Laboratório
Today, Wednesday, October 28, 2026 · local time (GMT-3) · Río de Janeiro, Brazil Today, Wed, Oct 28 · GMT-3- Swimming
- Calm · 2.6 ft
- Water
- 77 °F · warm
- Max UV
- 5 · SPF 30
- Wind
- 7 mph
Today, Wednesday, October 28, it's a fair beach day in Praia do Laboratório (6/10). The best hours are from 11:00 am to 2:00 pm: pleasant temperatures, little wind and water at 77 °F. The best day this week is Monday, November 2, at 8/10.
Beach forecast for the next 7 days
| Day | Rating | Best hours | Swimming | Water | UV |
|---|---|---|---|---|---|
| Today | 6Fair beach day | 11:00 am–2:00 pm | Calm · 2.6 ft | 77 °F | 5 |
| Thu 29 | 5Fair beach day | 6:00–9:00 am | Calm · 2.4 ft | 76 °F | 4 |
| Fri 30 | 5Fair beach day | 3:00–6:00 pm6:00–9:00 am | Calm · 1.9 ft | 76 °F | 7 |
| Sat 31 | 5Fair beach day | 6:00–9:00 am | Calm · 1.8 ft | 77 °F | 9 |
| Sun 1 | 5Fair beach day | 9:00 am–12:00 pm | Calm · 2.1 ft | 77 °F | 7 |
| Mon 2 | 8Good beach day | 6:00–11:00 am | Calm · 1.8 ft | 78 °F | — |
| Tue 3 | 8Good beach day | 7:00 am–12:00 pm3:00–6:00 pm | Calm · 1.9 ft | 79 °F | — |
Each rating comes from sun, temperature, rain, wind, waves, UV, water temperature and, where there is one, the tide.
Today in detail
3 good hours- Sun and clouds
- Feels like 78 °F: pleasant
- Onshore breeze (7 mph)
- UV 5 (moderate): SPF 30 sunscreen
- Water at 77 °F (warm)
- Calm for swimming: 2.6 ft waves; moderate rip current risk
Today, hour by hour
- Swimming Calm · 2.6 ft
2.6 ft waves: calm for swimming. Moderate rip current risk. Always follow the lifeguard's flags.
- Water 77 °F
Warm: very pleasant.
- Sun & sunscreen UV 5 · SPF 30
Max UV 5 (moderate): SPF 30 sunscreen, reapplied every 2 hours.
- Wind 7 mph
Onshore breeze (7 mph).
- Tide & sand
We don't show the tide for Praia do Laboratório, so it doesn't count in the rating.
The best window, 11:00 am to 2:00 pm, brings pleasant temperatures, little wind and water at 77 °F.
We don't have data on jellyfish, sargassum or beach closures: ask the lifeguard or check with the local beach authority.
Today, hour by hour
| Time | Rating | Sky | Feels like | Wind | Waves | UV |
|---|---|---|---|---|---|---|
| 6:00 am | 2 | Overcast | 72 °F | 3 mph | 2.8 ft | 0 |
| 7:00 am | 2 | Light drizzle | 73 °F | 3 mph | 2.7 ft | 1 |
| 8:00 am | 2 | Light drizzle | 73 °F | 4 mph | 2.7 ft | 2 |
| 9:00 am | 2 | Light drizzle | 74 °F | 4 mph | 2.6 ft | 3 |
| 10:00 am | 2 | Overcast | 75 °F | 5 mph | 2.6 ft | 4 |
| 11:00 am | 7 | Partly cloudy | 76 °F | 6 mph | 2.6 ft | 4 |
| 12:00 pm | 7 | Partly cloudy | 77 °F | 7 mph | 2.6 ft | 5 |
| 1:00 pm | 7 | Partly cloudy | 78 °F | 6 mph | 2.6 ft | 5 |
| 2:00 pm | 3 | Overcast | 77 °F | 4 mph | 2.6 ft | 3 |
| 3:00 pm | 3 | Overcast | 76 °F | 4 mph | 2.6 ft | 1 |
| 4:00 pm | 3 | Overcast | 76 °F | 3 mph | 2.7 ft | 1 |
| 5:00 pm | 3 | Overcast | 76 °F | 2 mph | 2.8 ft | 0 |
Beach hours only: from one hour after sunrise to half an hour before sunset.
Beaches near Praia do Laboratório
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Praia das Águas Quentes 0.1 mi · SW
- Praia do Casarão 0.2 mi · NE
- Praia Secreta 0.3 mi · NE
- Praia do Guariba 0.3 mi · S
- Praia de Fora do Mamede 0.6 mi · SW
- Praia de Piraquara de Dentro 0.8 mi · S
- Parking
- Praia do Saco 1.0 mi · N
- Praia do Pingo d'Água 1.1 mi · NE
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 Praia do Laboratório
Webcams provided by windy.com — add a webcam
How we rate a beach day
We rate every beach hour from 0 to 10 with simple, fixed rules:
- Adds: sunshine (up to 3 points, fewer with more clouds), warmth (up to 4, from the feels-like temperature; ideal between 81 °F and 91 °F), a calm sea (1), water at 70 °F or warmer (1; from 64 °F, half) and low or mid tide (1: more sand). Anything without data is left out and the rest is scaled to 10.
- Takes away: cold (feels-like below 64 °F, 1 to 4 points), rain (half a point if likely, up to 6 if it rains; thunderstorms, 8), wind from force 4, about 12 mph (1 to 6 points; half a point more if offshore, which blows inflatables out to sea, or onshore, which churns the water), waves (1 to swim with care, 4 if dangerous, 1 more for high rip current risk), very high UV (half a point; extreme, 1), water below 59 °F (1) and spring high tides (1: little sand left).
- Swimming: calm, use care (waves from 2.6 ft, or long swell) or dangerous (from 6.6 ft, or 4.9 ft with a long period), based on how much of the wave reaches this shore given the way it faces. In the U.S., today's and tomorrow's rip current risk comes from the National Weather Service surf zone forecast when it issues one; otherwise we estimate it from the waves.
- Best windows: runs of 2 to 5 hours rated 4 or more and close to the best hour, at least one hour apart.
- Day rating: the average of the best window; a 2-hour window keeps 85% of it and a 3-hour window 95%.
Today, in the best window: sun 1 of 3, warmth 3 of 4, calm sea 1 of 1 and water 1 of 1; short window: the rating keeps 95%.
It's a guide, not a guarantee: weather changes and every beach is different. Always follow the lifeguard's flags.
Questions about the beach in Praia do Laboratório
Is it a beach day in Praia do Laboratório today?
A fair beach day: 6/10. Best from 11:00 am to 2:00 pm, with pleasant temperatures, little wind and water at 77 °F.
What are the swimming conditions in Praia do Laboratório today?
2.6 ft waves: calm for swimming. Moderate rip current risk. Always follow the lifeguard's flags.
How warm is the water in Praia do Laboratório?
About 77 °F today: warm. That's the sea surface temperature offshore; it can differ a little at the shoreline.
How much sun protection do I need in Praia do Laboratório today?
UV reaches 5 (moderate): SPF 30 sunscreen, sunglasses and a hat.
What about tomorrow? Will it be a beach day in Praia do Laboratório?
Tomorrow, Thursday, October 29: a fair beach day (5/10), best from 6:00 am to 9:00 am.
What beaches are near Praia do Laboratório?
Praia das Águas Quentes (0.1 mi), Praia do Casarão (0.2 mi), Praia Secreta (0.3 mi), Praia do Guariba (0.3 mi) and Praia de Fora do Mamede (0.6 mi). See below for amenities and water quality.
Are there jellyfish or sargassum today?
We don't know: there's no open data on jellyfish, sargassum or closures for each beach. Ask the lifeguard, check the flags or the local beach authority's website.
How is the rating worked out?
From the hourly forecast: sun and clouds, feels-like temperature, rain, wind (and whether it blows onshore or offshore), waves and their period, UV, water temperature and, where there is one, the tide. Each factor adds or takes away a fixed number of points and the rating sums them up out of 10.
More about Praia do Laboratório today
Learn more
Our own calculation, using the Open-Meteo forecast (ECMWF, NOAA GFS, Météo-France, Copernicus Marine and CAMS, CC BY 4.0) and the sun from astronomy-engine.