Weather · San Jose, Costa Rica
San Jose Weather in September
San Jose in September runs 30°C / 23°C with 384mm of rain, a reasonable time to visit.
Avg high
30°C
86°F
Avg low
23°C
73°F
Rainfall
384mm
#6 wettest of 12
What to pack
Light, breathable clothes and strong sun protection. Pack a rain jacket or travel umbrella, showers are frequent this month.
Timing a trip around the weather? A Local Friend in San Jose builds it around the season for you.