Best time to visit San Isidro

February is the best month in San Isidro, scoring 76 out of 100, with September the weakest at 56. The 20-point spread means timing is worth planning around without being decisive. The good window runs January to March — 3 months within ten points of the best.

March is the warmest month at 29.2 °C and October the coolest at 25.6 °C — a 3.6 °C spread across the year.

There is a real wet season here. May to November carry the rain — up to 27 wet days in a month — while January to March drop as low as 12. That 15-day gap is the biggest single difference between a good month and a bad one in San Isidro, and it moves further than the temperature does.

Daylight barely moves: about 12.7 hours whatever the month, which removes one variable from the decision entirely.

The three strongest months are February, January, March. The one to think twice about is September. Each month below has its own page with rainfall reliability, extremes, daylight and crowd levels.

San Isidro month by month