Weather · San Juan, Argentina
San Juan Weather in May
May in San Juan averages 20°C by day and 8°C at night, with about 1mm of rain. That makes it one of the best months to visit.
Avg high
20°C
68°F
Avg low
8°C
46°F
Rainfall
1mm
#10 wettest of 12
What to pack
Layers, plus a jacket for mornings and nights. 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.