Climate of San Juan, Argentina
Area-weighted average across San Juan. For where people actually live and travel, see the cities below.
San Juan, a subdivision of Argentina, has a seasonal climate on average. Area-weighted monthly temperatures across the whole territory range from 3.1°C / 37.6°F in July to 16°C / 60.8°F in January, with rainfall from 9 mm / 0.4 in to 35 mm / 1.4 in depending on the season (213 mm / 8.4 in total across the year). See the city listed below for point-value climate at specific locations — these often differ from the area-weighted average, especially in geographically diverse subdivisions.
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | 16°C60.8°F | 35 mm1.4″ | Sunny & Mild |
| February | 15.1°C59.2°F | 34 mm1.3″ | Sunny & Mild |
| March | 13.1°C55.6°F | 23 mm0.9″ | — |
| April | 9.6°C49.3°F | 9 mm0.4″ | — |
| May | 6.5°C43.7°F | 12 mm0.5″ | — |
| June | 3.5°C38.3°F | 12 mm0.5″ | — |
| July | 3.1°C37.6°F | 14 mm0.6″ | — |
| August | 4.6°C40.3°F | 12 mm0.5″ | — |
| September | 7°C44.6°F | 11 mm0.4″ | — |
| October | 9.9°C49.8°F | 12 mm0.5″ | — |
| November | 12.9°C55.2°F | 17 mm0.7″ | — |
| December | 15.3°C59.5°F | 22 mm0.9″ | Sunny & Mild |
Frequently asked questions
What is the best time to visit San Juan?
The best months to visit San Juan, Argentina for sunny, dry weather are January, February, December. The warmest month is January at an area-wide average of 16°C / 60.8°F, and the driest is April with about 9 mm / 0.4 in of rainfall.
What is the climate of San Juan?
San Juan, Argentina has area-weighted monthly average temperatures ranging from 3.1°C / 37.6°F in July to 16°C / 60.8°F in January. Annual rainfall averages about 213 mm / 8.4 in, with the wettest month being January (35 mm / 1.4 in) and the driest April (9 mm / 0.4 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in San Juan?
The hottest month in San Juan is January, with an area-wide average temperature of 16°C / 60.8°F.
What is the coldest month in San Juan?
The coldest month in San Juan is July, with an area-wide average temperature of 3.1°C / 37.6°F.
When does it rain most in San Juan?
The wettest month in San Juan is January, averaging about 35 mm / 1.4 in of rainfall. The driest is April with about 9 mm / 0.4 in.