Tide
Heights retain the vertical reference supplied by the source and are not an official hydrographic zero.
Tidal range
Difference in height between one high tide and the following low tide.
Translated from the cited source.
Source: Shom — Définitions des mots clefs (GT TSH, mars 2025)
- Low03:24 PM · -1.5 m
- High08:23 PM · 1.7 m
- Low03:57 AM · -1.8 m
- High09:08 AM · 1.7 m
Hover or touch the curve to read the time and height. Use arrow keys on a keyboard.
Sea conditions
sea model sampled 12 km from the beach
- Estimated surface08:00 PM
- ≈ 19.2 °C
- Waves
- 0.4 m
- Period
- 7.3 s
- Swell
- 0.4 m W
- Modelled current
- 0.8 km/h
Local conditions
- Humidity
- 65 %
- UV
- 0.1
- Cloud cover
- 0 %
- Sunrise
- 07:38 AM
- Sunset
- 07:54 PM
Open‑Meteo forecast at the nearest grid point.
Practical information
- Surface
- Pebblesrecorded by the source · Source record 9/15/2026 · Open source
- Length
- 225 mSource record 9/15/2026 · Open source
- Shade features nearby
- Not documentedNearby, does not guarantee shade on the beach.recorded by the source · Source record 9/15/2026 · Open source
- Horizon (relief)
- N 0° · NE 4° · E 16° · SE 13° · S 12° · SW 4° · W 0° · NW 0°Relief only, excludes vegetation and buildings.Source record 9/15/2026 · Open source
- Distance to town
- 0.6 kmSource record 9/11/2026 · Open source
- Shore axis
- 20°Source record 9/15/2026 · Open source
Sun and shore orientation
September 21, 2026 · Estimated times · local time
Sunrise
Shore orientation unavailable
Sunset
Shore orientation unavailable
Estimated position for this date. Terrain, buildings and clouds may hide the sun; an unobstructed view has not been verified. Calculation method
Do you know this beach?
These answers come from visitors, not from a source we cite. They describe the place, not today's conditions.
Practical information recorded by the source
This information is source-recorded and may not describe the current situation.
- Nearby services
- toilets 1 · parking 7 · restaurant 2 · shop 1recorded by the source · Source record 9/15/2026 · Open source
Show catalogue context
- Local area
- 080recorded by the source · Source record 8/25/2026 · Open source
- Catalogue record
- Designated bathing waterrecorded by the source · Source record 8/25/2026 · Open source
- Coast
- Côte d'OpaleSource record 8/25/2026 · Open source
- Water body
- SeaSource record 8/25/2026 · Open source
Today’s windows
06:00 — 22:00 · select a row for details
photography05:54 PM – 07:54 PM
photography
Very good window05:54 PM – 07:54 PM
- moderate wind
- low rain risk
- late-day light
Confidence 70 % · rules coast-v4
Sources eot20-8c5f6e92a1b21128-82159c60-c82d-5d0b-a027-f225a59f7963 · open-meteo-weather-2026092117
sunset07:09 PM – 08:39 PM
sunset
Very good window07:09 PM – 08:39 PM
- moderate wind
- low rain risk
- around sunset
Confidence 70 % · rules coast-v4
Sources eot20-8c5f6e92a1b21128-82159c60-c82d-5d0b-a027-f225a59f7963 · open-meteo-weather-2026092117
shore gathering01:57 AM – 04:57 AM
shore gathering
Check first01:57 AM – 04:57 AM
- physical window around low tide
Confidence 40 % · rules coast-v4
Sources eot20-8c5f6e92a1b21128-82159c60-c82d-5d0b-a027-f225a59f7963 · open-meteo-weather-2026092117
beach run08:00 AM – 09:30 AM
beach run
Very good window08:00 AM – 09:30 AM
- moderate wind
- low rain risk
- cooler hour for running
Confidence 70 % · rules coast-v4
Sources eot20-8c5f6e92a1b21128-82159c60-c82d-5d0b-a027-f225a59f7963 · open-meteo-weather-2026092117
coastal walk10:00 AM – 12:00 PM
coastal walk
Very good window10:00 AM – 12:00 PM
- moderate wind
- low rain risk
- comfortable walking hour
Confidence 70 % · rules coast-v4
Sources eot20-8c5f6e92a1b21128-82159c60-c82d-5d0b-a027-f225a59f7963 · open-meteo-weather-2026092117
family beach time02:00 PM – 05:00 PM
family beach time
Check first02:00 PM – 05:00 PM
- moderate wind
- low rain risk
- mild temperature
- health sample expired
Confidence 0 % · rules coast-v4
Sources eot20-8c5f6e92a1b21128-82159c60-c82d-5d0b-a027-f225a59f7963 · open-meteo-weather-2026092117
Explore nearby
Beaches nearby
Nearby alternatives ranked from the information available in the catalogue.
Plage Surveillee De Woignarue, Somme
A very close alternative
Annual classification: Excellent
Plage Surveillee De Mers Les Bains, Somme
A very close alternative
Annual classification: Excellent
Le Treport-Plage, Seine-Maritime
Different coast: Normandie
Annual classification: Excellent
Plage De La Ville De Cayeux Sur Mer, Somme
A very close alternative
Annual classification: Excellent
Puys, Seine-Maritime
Different coast: Normandie
Annual classification: Excellent
Dieppe-Plage, Seine-Maritime
Different coast: Normandie
Annual classification: Excellent
Discovery score: distance, available annual classification and catalogue quality. It is neither real-time health advice nor a safety conclusion.
Seven-day tide
Modelled tidal range · source reference| Monday | Tuesday | 23 Wednesday | 24 Thursday | 25 Friday | 26 Saturday | 27 Sunday |
|---|---|---|---|---|---|---|
Modelled tidal range3.17 m Low tide02:47 AM-1.50 m High tide07:49 AM1.60 m Low tide03:24 PM-1.45 m High tide08:23 PM1.67 m | Modelled tidal range3.83 m Low tide03:57 AM-1.82 m High tide09:08 AM1.73 m Low tide04:25 PM-1.88 m High tide09:38 PM1.96 m | Modelled tidal range4.90 m Low tide04:51 AM-2.34 m High tide10:16 AM2.18 m Low tide05:14 PM-2.43 m High tide10:37 PM2.47 m | Modelled tidal range6.08 m Low tide05:35 AM-2.92 m High tide11:06 AM2.77 m Low tide05:55 PM-3.00 m High tide11:23 PM3.08 m | Modelled tidal range6.92 m Low tide06:13 AM-3.47 m High tide11:47 AM3.39 m Low tide06:31 PM-3.53 m | Modelled tidal range7.95 m High tide12:03 AM3.68 m Low tide06:48 AM-3.94 m High tide12:25 PM3.97 m Low tide07:05 PM-3.99 m | Modelled tidal range8.73 m High tide12:41 AM4.21 m Low tide07:22 AM-4.29 m High tide01:02 PM4.43 m Low tide07:39 PM-4.30 m |
The range is calculated from each day’s modelled heights. Heights retain the source reference and do not replace official times.
Tide calendarBrowse the month day by day with the modelled tidal range when available.Temperature over 48 hours
Updated at 07:00 PMModelled forecasts may change. Hourly values are spaced three hours apart; scroll to view all 48 hours.
Official information
SommeAnnual classification : Excellent
Latest sample : Sep 2, 2025, 12:00 AMOpen the health profile ↗An annual classification or the absence of an event in the feed does not mean bathing is currently permitted. Local signs and published orders take priority.
The place in pictures
View on Google Maps ↗Real photographs of Onival. They provide context but do not show current conditions.


Country profile
- Languages
- French
- Emergency
- General number 112Police 17Fire 18Ambulance 15
- Currency
- Euro
- Driving side
- right
Wikidata · CC0 · Retrieved on Sep 18, 2026
Sources and method
How to read the figures on this page, and what they do not say.
- Tide heights
- Heights retain the vertical reference supplied by the source and are not an official hydrographic zero.
- Sea temperature and conditions
- Temperature and conditions come from a limited-resolution coastal model, not an observation at the beach. Do not use for navigation or to conclude that bathing is safe.
- Beach characteristics
- These place characteristics are recorded from the linked sources. They describe the place, not current conditions.
Source & freshness
Modelled data · tide
Method and source ↗Licence ↗Modelled data · weather
Method and source ↗Licence ↗Modelled data · waves
Method and source ↗Licence ↗regulation · regulation
Method and source ↗Licence ↗Official catalogue · bathing
Method and source ↗Licence ↗Official catalogue · bathing
Method and source ↗Licence ↗Official catalogue · bathing
Method and source ↗Licence ↗Official catalogue · bathing
Method and source ↗Licence ↗derived_gazetteer · derived_gazetteer
Method and source ↗Licence ↗catalogue_review · catalogue_review
Method and source ↗Licence ↗derived_dataset · derived_dataset
Method and source ↗administrative_directory · administrative_directory
Method and source ↗Niveau marin modélisé, précision côtière limitée et référentiel différent du zéro hydrographique.
Modelled data and this estimate do not replace an official source. Mareloa is not a navigation tool.