Weather · San Juan, Argentina
San Juan Weather in September
San Juan in September runs 23°C / 8°C with 4mm of rain, a reasonable time to visit.
Avg high
23°C
73°F
Avg low
8°C
46°F
Rainfall
4mm
#7 wettest of 12
What to pack
Summer clothes by day; a light layer for evenings. Rain is unlikely to interrupt your plans.
Timing a trip around the weather? A Local Friend in San Juan builds it around the season for you.