San Juan Cancellations: Drop History
Our scanner has recorded 17 availability changes for San Juan. Here's when they actually happened.
PermitCast forecast
Odds of an opening for San Juan
Your chance of an opening in the window ahead, based on how often this permit has opened before.
Next 7 days
Low chance
Next 14 days
Moderate chance
Next 30 days
Moderate chance
Based on 14 weeks of our scan history. Forecast last updated Sep 29, 2026.
Changes by month
Every month is a real count of scanner-detected availability changes for San Juan, not an estimate.
| Month | Changes detected |
|---|---|
| March 2026 | 0 |
| April 2026 | 0 |
| May 2026 | 0 |
| June 2026 | 0 |
| July 2026 | 15 |
| August 2026 | 0 |
| September 2026so far this month | 2 |
Last scanned Sep 29, 7:20 PM PDT. Counts respect our availability-change epoch (2026-07-03): earlier scanner history isn't comparable and is excluded.
Best times to check
This grid plots every opening the scanner catches for San Juan by day of week and time of day, so you can see when the cancellations actually land. It draws at 140 recorded openings across its 28 squares. Under that, the darkest square is chance rather than a pattern. Set an alert and every opening counts toward it.
San Juan drop report questions
How often does San Juan availability actually move?
Our scanner has recorded 17 availability changes for San Juan since it started tracking, broken down by month above. A change is any shift in the open-date set, so it counts dates closing as well as dates opening.
When is the best time to check for San Juan cancellations?
Set an alert and every opening the scanner catches for San Juan counts toward the grid above. It draws once there are at least 140 recorded openings spread across its 28 squares, so the darkest square points at a real pattern rather than at chance.
How fast will I find out if a San Juan date opens up?
Paid plans are scanned about every minute and we tell you within seconds. Free accounts are scanned hourly. Either way, PermitSnag catches the change, so you don't have to refresh the page yourself.