Wave, wind, tide and live cams for west-coast beaches. One page, one question: is it worth going right now?
A single static HTML file. No build step, no backend, no API keys — every source is fetched straight from the browser and works without registration.
| Source | Provides |
|---|---|
| Open-Meteo Marine | swell height, period, direction, wind wave: DWD GWAM, MeteoFrance WAM, NOAA GFS-Wave 0.16°, ECMWF WAM |
| Open-Meteo Forecast | wind, gusts, precipitation: ICON, GFS, ECMWF, ARPEGE, JMA |
| Open-Meteo Marine | tide and sea temperature |
| Open-Meteo Forecast | general weather, sunrise, UV |
| MET Norway | wind, independent of Open-Meteo |
| NOAA WaveWatch III (PacIOOS ERDDAP) | total wave height, independent of Open-Meteo |
| Open-Meteo | wave and wind at three ocean watchpoints |
Each value is the median across models, not the mean — a single outlier cannot drag the result. Directions are averaged as vectors. The spread between sources is shown next to the result; when it is wide, the forecast is unreliable and the page says so.
Sources load independently with a 15 s timeout. A failed one does not break the
page — it is marked in the header (sources 7/8) and drops out of the median.
Kata (SSS Dive & Surf), Patong (Patong Tower), Karon (Marina Phuket Resort) — direct links to the original streams, no keys. Other beaches have no public camera pointing at the water.
The region comes from the URL hash: /#phuket. Phuket is the default and
currently the only one. Everything location-dependent lives in REGIONS
(coordinates, timezone, daylight hours); beaches live in SPOTS.
0–10 per hour, weighted: swell size against the spot's working range (34%), wind direction and strength (30%), period (20%), swell direction relative to the shore (16%), plus a tide adjustment.
- 10-day horizon. No wave forecast exists beyond that anywhere — the atmosphere is not modelled that far out.
- Phuket is shielded by islands. The Andaman and Nicobar chain lets through roughly 40% of ocean swell and cuts the period from 10 s to 5–6 s. Low numbers here are geography, not a broken model.
- No wave ensemble for this region — Open-Meteo returns empty nodes.
- No cyclone feed. GDACS and JTWC do not allow browser access, and a made-up warning would be worse than none.
- Spot thresholds are not calibrated. The working swell range and preferred
tide for each break in
SPOTSare estimates and need real sessions to verify.
Code in this repository is MIT (see LICENSE). The data is not — each provider
sets its own terms, and they are met as follows.
Open-Meteo — data is CC BY 4.0 and requires attribution. The free tier is limited to non-commercial use and 10 000 calls per day. This site is non-commercial: no subscriptions, no advertising. Requests are made from each visitor's own browser, so the daily limit applies per visitor, not to the site as a whole. Adding ads or paid features would require a paid plan.
MET Norway — data is CC BY 4.0 and requires attribution. Their terms also require an identifying User-Agent; a browser cannot set one, so requests carry the Origin header instead, which their terms accept as the fallback. Data is requested once per page load, far below their limits. Their terms forbid using the Yr name or logo, or implying any affiliation — this site does neither.
NOAA WaveWatch III via PacIOOS ERDDAP — a work of the US government, in the public domain. Credited in the footer.
Webcams — the streams belong to SSS Phuket Dive & Surf (Kata), Patong Tower (Patong) and Marina Phuket Resort (Karon). They are embedded from the original sources and credited on every frame. Nothing is re-hosted, recorded or passed off as this site's own. If an operator asks for their stream to be removed, remove it.
Visit counter — hits.sh, a third-party service. It sees visitors' IP
addresses, as any external analytics does. Remove the .hits block to drop it.
Not fines — none of these providers issue them. The realistic outcomes are: rate limiting or a block from MET Norway if their terms are broken, a request from a camera operator to stop embedding, and a requirement to move to a paid Open-Meteo plan if the site ever becomes commercial. Attribution is a licence condition in all three cases and is present in the page footer.
Forecasts are model output and can be wrong — the page shows the spread between sources precisely because they often disagree. Do not use it as the sole basis for decisions about entering the water.