Tide data
in a single request.
Simple, reliable REST API for tide times, coefficients, and water levels across the entire French coastline.
Enter your email to get your API key.
Zero spam — your email is only used to create your key.
Everything you need
An API built for developers, with professional-grade data.
Full coverage
Over 60 reference ports across the English Channel, Atlantic, and Mediterranean coasts.
Simple endpoints
GET /tides/{port} — times, coefficients, and heights. Clean JSON, built-in pagination.
Reliable data
Official SHOM sources. Daily updates, 99.9%+ uptime.
Quick integration
One API key, one endpoint. Integrate tide data in under 5 minutes.
Simple to use
One call, structured data. Here's what a request looks like.
{
"port": "Brest",
"date": "2026-03-10",
"coefficient": 87,
"tides": [
{
"type": "pleine_mer",
"time": "04:23",
"height_m": 6.82
},
{
"type": "basse_mer",
"time": "10:47",
"height_m": 1.35
}
]
}Simple pricing, no surprises
Choose the plan that fits your usage. Scale when you need to.
Starter
For personal projects and prototyping.
Prices exclude VAT — 20% VAT added at checkout
- 1,000 requests / month
- All ports
- Times & coefficients
- Email support
Pro
For production applications.
Prices exclude VAT — 20% VAT added at checkout
- 50,000 requests / month
- All ports
- Times, coefficients & heights
- 5-year historical data
- Priority support
- 99.9% SLA
Enterprise
For mission-critical needs and high volume.
- Unlimited requests
- All ports
- All data
- Full history
- Dedicated support
- Custom SLA
- Webhooks & alerts
Frequently asked questions about the tide API
Everything you need to know about our French tide API.
What is the Tide Data tide API?+
Tide Data is a REST API that provides tide times, coefficients, and water levels across the entire French coastline. You fetch a port's tide data in a single HTTP request, as JSON, ready to integrate into your app, website, or back office.
Where does the tide data come from?+
Predictions are based on official data from SHOM (the French Naval Hydrographic and Oceanographic Service), the reference for tides in France. Data is updated daily to ensure reliability.
Which French ports does the API cover?+
More than 60 reference ports across the Channel, the Atlantic, and the Mediterranean — from Dunkirk to Menton, including Brest, La Rochelle, and Marseille. Each port provides high and low tide times, coefficients, and water levels.
How do I get a free tide API key?+
Just enter your email on the homepage to receive your API key instantly. The free trial includes 1,000 requests per month for 30 days, no credit card required, so you can test the integration before choosing a plan.
Does the API provide coefficients and water levels?+
Yes. Every response includes tide times, coefficients, and the associated water levels. Higher plans also give access to historical data spanning several years.
How much does the tide API cost?+
Access starts at €9/month excl. VAT (Starter plan, 1,000 requests) and €39/month excl. VAT (Pro plan, 50,000 requests). A free trial is available and subscriptions have no commitment — cancel anytime.