Best Time to Visit San Juan, San Juan, Argentina
San Juan is at its sunniest and driest in March–November.
The best time to visit San Juan for sunny, dry weather is March–April and September–November — 5 months of the year fit our sunny profiles at this specific location. The drier stretch runs through April–October; the wetter half falls in November–March. At the city itself, monthly average temperatures range from 8.3°C / 46.9°F in July to 25.9°C / 78.6°F in January, with rainfall from 3 mm / 0.1 in (June) to 66 mm / 2.6 in (January). These are point-value climate normals sampled at San Juan, San Juan, Argentina's coordinates — usually more actionable for travellers than the country-wide average. San Juan's climate is broadly seasonal. The full month-by-month table below lets you match your travel window against our five weather profiles.
Recommended months
| Month | Temp | Rain | Feels like |
|---|---|---|---|
| March | 21.9°C71.4°F | 38 mm1.5″ | Sunny & Warm, Sunny & Mild |
| April | 17.1°C62.8°F | 14 mm0.6″ | Sunny & Mild |
| September | 14.5°C58.1°F | 9 mm0.4″ | Sunny & Mild |
| October | 19.1°C66.4°F | 15 mm0.6″ | Sunny & Mild |
| November | 22.5°C72.5°F | 30 mm1.2″ | Sunny & Warm |
Frequently asked questions
When is the best time to visit San Juan?
The best time to visit San Juan for sunny, dry weather is March, April, September, October, November. At the city itself, the warmest month is January averaging 25.9°C / 78.6°F, and the driest is June with about 3 mm / 0.1 in of rain. These are point-value climate normals sampled at San Juan's coordinates.
When is the rainy season in San Juan?
The rainy season at San Juan, San Juan runs through November–March, when monthly rainfall exceeds the annual median of about 15 mm / 0.6 in. The wettest single month is January (66 mm / 2.6 in).
What is the driest month in San Juan?
The driest month in San Juan is June, averaging about 3 mm / 0.1 in of rainfall. Temperature that month averages 8.6°C / 47.5°F.
What months should I avoid visiting San Juan?
The least comfortable months for travel to San Juan — based on point-value climate at the city — are January, February, May, June, July, August, December. These are the wettest or coolest months at this location. Rainfall peaks at 66 mm / 2.6 in in January, and the coldest month averages 8.3°C / 46.9°F.
Is San Juan climate different from Argentina overall?
Yes, usually. Our San Juan figures are point-value climate normals sampled at the city itself, while our Argentina figures are area-weighted averages across the whole country. The two can diverge substantially in geographically diverse or elevation-varied countries. The month-by-month table below reflects San Juan specifically — usually the more actionable data for a traveller planning to spend time in the city.