About SwimPass

Know before you swim.

SwimPass started with one question every open-water swimmer asks before they leave the house: is it good out there? It reads the forecast for your spot, weighs it for the kind of water and for how you swim, and gives you one number and a straight answer.

What we believe

01

A straight answer.

Swimmers check the tide, wind, waves, weather and local warnings in five places before a swim. SwimPass reads it all and says it plainly: get in, or stay dry. The detail is one tap away when you want it.

02

Fewer spots, better water.

We start where people really swim. In our four home waters every spot is researched by hand (access, lifeguards, water quality, hazards) before it’s listed. We add regions as we check them, and say clearly when a spot hasn’t been checked.

03

Honest about limits.

Every number shows where it came from and when. SwimScore is a guide to conditions, not a lifeguard, and we say what it can’t see: water quality, rips that form anywhere, local closures.

Where the numbers come from

Open data, checked by people.

Spot pages pull the live forecast when you open them. Hand-checked spots are also re-scored every two hours for alerts and the weekly email.

Weather and marine forecast
Open-Meteo
Wind, waves, air temperature, rain, UV and visibility, hour by hour.
Air quality
Open-Meteo
Smoke and pollution, as a US AQI.
Tides
NOAA
Tide predictions for US coastal spots with a nearby station.
Spot research
Official sources
Park, council and health-department pages, and national bathing-water data, linked from each hand-checked spot and local guide.
Photos
Wikimedia Commons
Openly licensed and credited on every page.
On the water
Swimmers on SwimPass
Condition reports and feedback on whether a score was right.

How the score is put together: How SwimScore works. Before any swim: Swim safety.

What’s next

More water, checked the same way.

  • More regions, each researched spot by spot before it’s listed.
  • An iPhone app with the same score and alerts.
  • A SwimScore that keeps learning from swimmers’ feedback.

Spotted something wrong?

A closed beach, a score that missed, a spot we should check. Tell us and we’ll look at it.

Get in touch

Your water,
scored for you.

Save your spots, set how you like it, and hear about it when your swim window opens.

Start free

Free to start · No card needed