Beach forecast for Fontanelas
Today, Thursday, October 29, 2026 · local time (WET) · Lisbon, Portugal Today, Thu, Oct 29 · WET- Swimming
- Dangerous · 7.3 ft
- Water
- 62 °F · cold
- Max UV
- 4 · SPF 30
- Low tide
- 10:15 am and 10:31 pm
Today, Thursday, October 29, it's not a beach day in Fontanelas (1/10). The best day this week is Friday, October 30, at 4/10.
Beach forecast for the next 7 days
| Day | Rating | Best hours | Swimming | Water | UV |
|---|---|---|---|---|---|
| Today | 1Not a beach day | Not today | Dangerous · 7.3 ft | 62 °F | 4 |
| Fri 30 | 4Poor beach day | 11:00 am–2:00 pm | Use care · 4.4 ft | 62 °F | 4 |
| Sat 31 | 1Not a beach day | No good window | Dangerous · 6.0 ft | 62 °F | 3 |
| Sun 1 | 1Not a beach day | No good window | Dangerous · 5.8 ft | 62 °F | 4 |
| Mon 2 | 2Not a beach day | No good window | Use care · 4.7 ft | 62 °F | 3 |
| Tue 3 | 2Not a beach day | No good window | Use care · 3.3 ft | 62 °F | — |
| Wed 4 | 0Not a beach day | No good window | Use care · 4.2 ft | 62 °F | — |
Each rating comes from sun, temperature, rain, wind, waves, UV, water temperature and, where there is one, the tide.
Today in detail
- Sunny
- Feels like 73 °F: mild
- Onshore breeze (5 mph)
- UV 4 (moderate): SPF 30 sunscreen
- Low tide at 10:15 am: more sand
- Dangerous for swimming: 7.3 ft waves every 11 s; high rip current risk
Dangerous surf during beach hours. Stay out if the red flag is up, and never swim where there is no lifeguard.
Today, hour by hour
- Swimming Dangerous · 7.3 ft
7.3 ft waves every 11 s: dangerous for swimming. Stay out if the red flag is up. 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 62 °F
Cold: ease in slowly.
- Sun & sunscreen UV 4 · SPF 30
Max UV 4 (moderate): SPF 30 sunscreen, reapplied every 2 hours.
- Wind 5 mph
Onshore breeze (5 mph).
- Tide & sand 10:15 am
Low tide at 10:15 am and 10:31 pm: that's when there's the most sand. High tide at 4:04 am and 4:32 pm.
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 |
|---|---|---|---|---|---|---|
| 8:00 am | 0 | Clear sky | 58 °F | 4 mph | 7.3 ft | 0 |
| 9:00 am | 0 | Clear sky | 65 °F | 2 mph | 7.1 ft | 1 |
| 10:00 am | 1 | Clear sky | 71 °F | 2 mph | 6.8 ft | 2 |
| 11:00 am | 1 | Clear sky | 72 °F | 2 mph | 6.6 ft | 3 |
| 12:00 pm | 1 | Clear sky | 72 °F | 1 mph | 6.3 ft | 4 |
| 1:00 pm | 1 | Clear sky | 73 °F | 1 mph | 6.0 ft | 4 |
| 2:00 pm | 0 | Clear sky | 72 °F | 4 mph | 5.8 ft | 3 |
| 3:00 pm | 0 | Clear sky | 72 °F | 5 mph | 5.6 ft | 2 |
| 4:00 pm | 0 | Clear sky | 70 °F | 4 mph | 5.4 ft | 1 |
Beach hours only: from one hour after sunrise to half an hour before sunset.
Beaches near Fontanelas
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Praia da Aguda 0.9 mi · W
- Parking
- Praia do Magoito 1.1 mi · NW
- Parking
Excellent water quality 2025 season, EEA
- Praia do Giribeto 1.8 mi · N
- Praia das Maçãs 2.3 mi · SW
- Restrooms
- Showers
- Parking
Excellent water quality 2025 season, EEA
- Praia Pequena do Rodízio 2.7 mi · SW
- Parking
- Praia Grande do Rodízio 3.2 mi · SW
- Restrooms
- Parking
Excellent water quality 2025 season, EEA
- Praia da Samarra 3.4 mi · N
- Praia da Adraga 3.9 mi · SW
- Restrooms
- Parking
Excellent water quality 2025 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 Portuguese Environment Agency (APA).
Webcams near Fontanelas
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 3 of 3, warmth 2 of 4, calm sea 0 of 1, water 0 of 1 and tide 1 of 1; minus waves 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 Fontanelas
Is it a beach day in Fontanelas today?
Not a beach day: 1/10. No good beach time today.
What are the swimming conditions in Fontanelas today?
7.3 ft waves every 11 s: dangerous for swimming. Stay out if the red flag is up. 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.
How warm is the water in Fontanelas?
About 62 °F today: cold. That's the sea surface temperature offshore; it can differ a little at the shoreline.
How much sun protection do I need in Fontanelas today?
UV reaches 4 (moderate): SPF 30 sunscreen, sunglasses and a hat.
When is low tide in Fontanelas?
Today low tide is at 10:15 am and 10:31 pm: that's when there's the most sand. High tide is at 4:04 am and 4:32 pm.
What about tomorrow? Will it be a beach day in Fontanelas?
Tomorrow, Friday, October 30: a poor beach day (4/10), best from 11:00 am to 2:00 pm.
What beaches are near Fontanelas?
Praia da Aguda (0.9 mi), Praia do Magoito (1.1 mi), Praia do Giribeto (1.8 mi), Praia das Maçãs (2.3 mi) and Praia Pequena do Rodízio (2.7 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 Fontanelas 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 Cascais (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