Beach forecast for Cayenne
Today, Wednesday, October 28, 2026 · local time (GMT-3) · Guyane, French Guiana Today, Wed, Oct 28 · GMT-3- Swimming
- Calm · 1.6 ft
- Water
- 87 °F · very warm
- Max UV
- 9 · SPF 50
- Low tide
- 11:49 am
Today, Wednesday, October 28, it's a fair beach day in Cayenne (5/10). The best hours are from 7:00 am to 9:00 am: beach weather, little wind, a calm sea and water at 86 °F, though with clouds. The best day this week is Saturday, October 31, at 8/10.
Beach forecast for the next 7 days
| Day | Rating | Best hours | Swimming | Water | UV |
|---|---|---|---|---|---|
| Today | 5Fair beach day | 7:00–9:00 am | Calm · 1.6 ft | 87 °F | 9 |
| Thu 29 | 7Good beach day | 3:00–6:00 pm10:00 am–12:00 pm | Calm · 2.2 ft | 86 °F | 10 |
| Fri 30 | 7Good beach day | 10:00 am–12:00 pm1:00–6:00 pm | Calm · 2.0 ft | 86 °F | 11 |
| Sat 31 | 8Good beach day | 7:00 am–12:00 pm1:00–6:00 pm | Calm · 1.5 ft | 87 °F | 11 |
| Sun 1 | 7Good beach day | 7:00–9:00 am | Calm · 1.6 ft | 87 °F | 11 |
| Mon 2 | 7Good beach day | 3:00–6:00 pm7:00–9:00 am | Calm · 2.2 ft | 87 °F | — |
| Tue 3 | 7Good beach day | 3:00–6:00 pm7:00–9:00 am | Calm · 2.4 ft | 87 °F | — |
Each rating comes from sun, temperature, rain, wind, waves, UV, water temperature and, where there is one, the tide.
Today in detail
- Feels like 93 °F: hot
- Cross-shore breeze (7 mph)
- Calm for swimming: 1.6 ft waves
- Water at 86 °F (very warm)
- Cloudy (82% cloud cover)
Today, hour by hour
- Swimming Calm · 1.6 ft
1.6 ft waves: calm for swimming. Low rip current risk. Always follow the lifeguard's flags.
- Water 87 °F
Very warm: barely refreshing.
- Sun & sunscreen UV 9 · SPF 50
Max UV 9 (very high): SPF 50 sunscreen, reapplied every 2 hours. Seek shade 12:00–2:00 pm (very high UV).
- Wind 10 mph
Onshore breeze (10 mph).
- Tide & sand 11:49 am
Low tide at 11:49 am: that's when there's the most sand. High tide at 6:04 am and 6:13 pm. Coefficient 96 (spring tides): little sand left at high tide.
The best window, 7:00 am to 9:00 am, brings beach weather, little wind, a calm sea and water at 86 °F, though with clouds.
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 |
|---|---|---|---|---|---|---|
| 7:00 am | 5 | Overcast | 90 °F | 5 mph | 1.6 ft | 0 |
| 8:00 am | 6 | Overcast | 93 °F | 7 mph | 1.6 ft | 1 |
| 9:00 am | 3 | Overcast | 94 °F | 9 mph | 1.6 ft | 3 |
| 10:00 am | 3 | Light drizzle | 95 °F | 9 mph | 1.6 ft | 6 |
| 11:00 am | 3 | Light drizzle | 96 °F | 9 mph | 1.6 ft | 8 |
| 12:00 pm | 2 | Light drizzle | 97 °F | 9 mph | 1.7 ft | 9 |
| 1:00 pm | 2 | Drizzle | 98 °F | 9 mph | 1.7 ft | 8 |
| 2:00 pm | 2 | Drizzle | 98 °F | 9 mph | 1.7 ft | 7 |
| 3:00 pm | 2 | Drizzle | 97 °F | 9 mph | 1.7 ft | 4 |
| 4:00 pm | 2 | Light drizzle | 94 °F | 9 mph | 1.8 ft | 1 |
| 5:00 pm | 1 | Light drizzle | 92 °F | 10 mph | 1.8 ft | 0 |
Beach hours only: from one hour after sunrise to half an hour before sunset.
Beaches near Cayenne
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Plage de l'Hôpital 0.3 mi · N
- Parking
- Plage Nadau 0.5 mi · NE
- Restrooms
- Parking
- Montabo Beach 2.7 mi · E
- Restrooms
- Parking
- Plage de Bourda 3.6 mi · E
- Parking
Poor water quality 2024 season, EEA
- Plage Louis Caristan 4.5 mi · E
- Parking
Good water quality 2025 season, EEA
- Plage des Fromagers 5.6 mi · E
- Parking
- Plage de Gosselin 6.1 mi · SE
- Parking
Poor water quality 2024 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 French Ministry of Health (baignades.sante.gouv.fr).
Webcams near Cayenne
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 0 of 3, warmth 3.5 of 4, calm sea 1 of 1, water 1 of 1 and tide 0.4 of 1; minus high tide 0.5; short window: the rating keeps 85%.
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 Cayenne
Is it a beach day in Cayenne today?
A fair beach day: 5/10. Best from 7:00 am to 9:00 am, with beach weather, little wind, a calm sea and water at 86 °F, though with clouds.
What are the swimming conditions in Cayenne today?
1.6 ft waves: calm for swimming. Low rip current risk. Always follow the lifeguard's flags.
How warm is the water in Cayenne?
About 87 °F today: very warm. That's the sea surface temperature offshore; it can differ a little at the shoreline.
How much sun protection do I need in Cayenne today?
UV reaches 9 (very high): SPF 50 sunscreen, sunglasses and a hat, and seek shade from 12:00 pm to 2:00 pm.
When is low tide in Cayenne?
Today low tide is at 11:49 am: that's when there's the most sand. High tide is at 6:04 am and 6:13 pm. Coefficient 96 (spring tides): little sand left at high tide.
What about tomorrow? Will it be a beach day in Cayenne?
Tomorrow, Thursday, October 29: a good beach day (7/10), best from 3:00 pm to 6:00 pm.
What beaches are near Cayenne?
Plage de l'Hôpital (0.3 mi), Plage Nadau (0.5 mi), Montabo Beach (2.7 mi), Plage de Bourda (3.6 mi) and Plage Louis Caristan (4.5 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 Cayenne today
Learn more
Our own calculation, using the Open-Meteo forecast (ECMWF, NOAA GFS, Météo-France, Copernicus Marine and CAMS, CC BY 4.0), the tide from Cayenne (TICON-4) and the sun from astronomy-engine. 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