Best time to fly São Paulo to Jaguaruna

Every month pooled across the years on record, so "July" means July generally rather than one particular July. Full GRU to JJG record →

Best month

October

93.9% on time · 34 flights

Worst month

April

73.8% on time · 61 flights

Month Flights On time Cancelled When late, by
January 74 85.1% 0% 44 min
February 68 85.1% 1.47% 43 min
March 82 84.1% 0% 29 min
April 61 73.8% 0% 39 min
May 62 86.4% 4.84% 44 min
June 60 83.1% 1.67% 46 min
July 99 81.3% 8.08% 39 min
August 74 87.1% 5.41% 55 min
September 73 80.6% 1.37% 40 min
October 34 93.9% 2.94% 23 min
November 78 89.6% 1.28% 27 min
December 78 74.3% 5.13% 59 min

What a seasonal pattern can and cannot tell you

Months differ for reasons that repeat — summer thunderstorms in the American interior, winter fog and de-icing in northern Europe, school holidays filling every seat and leaving no slack in the schedule. Those are real and they come back each year.

What the pattern cannot do is forecast a particular flight. A quiet month has late days and a bad month has punctual ones. Treat this as a way to choose between two dates you are indifferent about, not as a promise.