Your coast
Try your spot.
Type any coastal place and we’ll show a 3-day conditions preview. No signup required.
Today · Live
Three spots. Viz first, everything else in context.
ALGARVE, PORTUGAL
Sagres
Conditions unavailable right now. Upstream buoy or NOAA feed hiccuping.
Feed offline
CALIFORNIA, USA
Santa Cruz
Conditions unavailable right now. Upstream buoy or NOAA feed hiccuping.
Feed offline
SOUTH SINAI, EGYPT
Dahab
Conditions unavailable right now. Upstream buoy or NOAA feed hiccuping.
Feed offline
Scores refresh every 15 minutes · Model: Slacktide v0.4 · Sources: Open-Meteo marine + weather forecast
How it works
Three decisions the model makes for you.
01
Pick your spots and discipline
Save the coastline you dive — mark each site as reef, wall, kelp, wreck, or shore. Tell us whether you're spearing, freediving, or on scuba. Scoring adjusts.
02
We model viz, current, and column temp hourly
Swell period, runoff, river plumes, pressure, and moon feed a per-hour viz forecast. Current and thermocline come from tide model + buoys.
03
Pings only when a window opens
Push or Telegram when viz, current, and surface line up for your discipline and depth range. No daily digest. No surf hype.