Question 1

How far ahead does Isobar forecast?

Accepted Answer

Isobar provides 30-day surf forecasts — twice as long as premium apps that max out at 7-16 days. We track storms 3,000+ miles out using GFS, ECMWF, and DWD-EWAM weather models.

Question 2

What weather models does Isobar use?

Accepted Answer

We fuse GFS, ECMWF, and DWD-EWAM weather models with live data from 6+ global buoy networks — NDBC, KNMI, EMODnet, BoM, JMA, and ERA5 reanalysis — then cross-verify against independent sources.

Question 3

How accurate are 30-day surf forecasts?

Accepted Answer

Our machine learning algorithms continuously compare predictions to live buoy readings, achieving 87% average accuracy. Every prediction is verified against real buoy data, automatically refining accuracy over time.

Question 4

How much does Isobar cost?

Accepted Answer

Isobar offers a 14-day free preview for any surf spot. Unlock the full 30-day forecast from just $0.99 one-time, or subscribe from $3.99/month for unlimited access to all 300+ spots.