About IslandPulse
IslandPulse is a simple weather companion for Koh Phangan. Instead of dumping you a wall of numbers, it tells you what the sky is actually doing right now, and what to expect in the next few hours — in plain English.
Where the data comes from
- Live radar — public tiles from RainViewer, refreshed every ~10 minutes. This is the "what's happening right now" layer.
- Short-range nowcast — machine-learning rain forecast from Tomorrow.io, extending out to about 6 hours.
- Plain-English summary — a small AI model condenses both signals into a single readable call.
- Tide predictions — harmonic model from WorldTides, refreshed daily. Tide phase is essentially identical across the island, so we show one schedule.
What we can and can't see
Radar coverage is reliable from about 2 hours in the past to 2 hours ahead. Beyond that, you're looking at the ML nowcast, which trades precision for range. Anything past 6 hours isn't a forecast we trust enough to put on screen.
Honest about confidence
Every "call" is tagged low / medium / high confidence. We store each one and compare it against what actually happened, so the system learns where it's reliable and where it isn't. You can see the running scorecard on the home page under "How accurate are our calls?".
Not an official forecast
IslandPulse is a hobby-grade tool built to help you decide whether to grab an umbrella or head to the beach. Don't use it for boat trips, severe weather safety decisions, or anything where being wrong has real consequences. Check the Thai Meteorological Department for official warnings.