Live tide data, forecasts, and coastal conditions for the Galician coast of Spain.
Built for fishermen, coastal explorers, and ocean enthusiasts who need reliable, real-time tide information without the complexity of scientific portals.
tides galicia oceanography nextjs pwa opendap tide-forecast coastal leaflet d3js meteogalicia fishing vedas marine-weather spain
| Home | Forecast | Map | Vedas | Dark mode |
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Maree pulls live tide gauge readings from Spain's national port authority and forecast models from MeteoGalicia, then presents them in a clean, mobile-first interface. Open the app, pick a station (or let GPS find the nearest one), and you immediately see:
- Current tide height -- whether it's rising or falling, and how far along the cycle it is
- Next high and low tides -- with exact times and heights
- Interactive tide curve -- a D3.js chart showing today's tide or a 7-day overview, with observed data overlaid on forecasts
- Spring and neap tide alerts -- computed from lunar phase, so you know when tidal ranges will be extreme
- Wind, waves, and sea temperature -- sourced from Open-Meteo
- Sunrise and sunset -- calculated algorithmically from station coordinates
- Species fishing closures (Vedas) -- an annual calendar showing which species are open or closed, with links to official Diario Oficial de Galicia publications
Seven tide gauge stations along the Galician coast:
| Station | Location |
|---|---|
| Vigo | Ria de Vigo |
| Marin | Ria de Pontevedra |
| Vilagarcia de Arousa | Ria de Arousa |
| Langosteira | Porto Exterior |
| A Coruna | Golfo Artabro |
| Ferrol | Ria de Ferrol |
| San Cibrao | Costa da Marina |
| Source | What it provides |
|---|---|
| Puertos del Estado (THREDDS/OPeNDAP) | Real-time tide gauge observations |
| MeteoGalicia (MOHID/ROMS models) | 2--4 day tide forecasts per ria |
| Open-Meteo | Wind, waves, sea surface temperature |
| DOG RSS | Official fishing closure regulations |
All external requests are proxied through Next.js API routes -- the browser never calls THREDDS or OPeNDAP directly.
Next.js 15 (App Router) -- React 19 -- TypeScript -- Tailwind CSS v4 -- D3.js -- Leaflet -- Vitest
Installable as a PWA with offline support. All UI text is in Spanish.
nvm use # Node 22 (see .nvmrc)
npm install
npm run dev # http://localhost:3000| Command | Purpose |
|---|---|
npm run dev |
Start dev server |
npm run build |
Production build (includes type checking) |
npm run lint |
ESLint |
npm test |
Run all tests |
npm run test:watch |
Tests in watch mode |
Verification order: lint -> build -> test.
src/
app/ # Pages and API routes (App Router)
api/ # Server-side proxies to external data sources
forecast/ # 7-day tide forecast
map/ # Interactive Leaflet map
search/ # Station search and favorites
vedas/ # Species fishing closures
components/ # React components (tide curve, cards, nav)
lib/ # Domain logic and data fetching
tides/ # Tide analysis, interpolation, alerts
thredds/ # OPeNDAP parsers, caching, retry logic
species/ # Species registry and closure calendar
CC BY-NC 4.0 -- Creative Commons Attribution-NonCommercial 4.0 International.