Climate normals · 1970–2000
San Juan Climate
San Juan is a city in Argentina (18) with a population of about 109,123. Its average annual temperature is 17.5°C (64°F), with roughly 278 mm of rain per year.
17.5°C
Avg Temp
278
Precip (mm/yr)
Jan
Hottest Month
Jul
Coldest Month
San Juan Climate
San Juan has an average annual temperature of 17.5°C (64°F) and receives about 278 mm of precipitation per year. The warmest month is January and the coldest is July. Figures are 1970–2000 climate normals.
17.5°C
Avg Temp
278
Precip (mm/yr)
Jan
Hottest Month
Jul
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 26° / 78° | 63 mm |
| February | 25° / 76° | 53 mm |
| March | 22° / 71° | 37 mm |
| April | 17° / 63° | 14 mm |
| May | 13° / 55° | 7 mm |
| June | 9° / 47° | 3 mm |
| July | 8° / 47° | 4 mm |
| August | 11° / 52° | 4 mm |
| September | 14° / 58° | 8 mm |
| October | 19° / 66° | 15 mm |
| November | 22° / 72° | 29 mm |
| December | 25° / 77° | 41 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit San Juan
The most comfortable months to visit San Juan are typically March, October and November, when temperatures are mildest and rainfall is relatively low. The hottest month is January (around 33°C high). The coldest is July (near 1°C low). January is usually the wettest month.
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Frequently Asked Questions
The most comfortable months to visit San Juan are typically March, October and November, when temperatures are mildest and rainfall is relatively low (1970–2000 climate normals).
San Juan, Argentina has an average annual temperature of 17.5°C and about 278 mm of precipitation per year. The warmest month is January and the coldest is July.
In January, the hottest month, daily highs in San Juan average about 33°C (92°F).
Monthly climate normals (1970–2000) sampled from WorldClim 2.1 at ~9 km resolution. Humidity derived from vapor pressure. City coordinates and population from GeoNames.