Climate averages 1991–2020
San Juan, Argentina weather
in June.
A mild, very dry month: the 11th warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a mild month in San Juan, Argentina: daytime highs average 17.4°C and nights cool to about 4.1°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 7.8 mm of rain on roughly 2 days, which makes June a very dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 10 h 08 min on an average June day.
The nearest other city in this atlas is Rawson (5 km away). In June its highs average 17.1°C, about as warm as San Juan, Argentina, with 7.8 mm of rain.
Among the 67 cities listed in Argentina, San Juan, Argentina ranks 12th of 67 for the warmest June highs and joint 2nd of 67 for the driest June (rainfall, lowest first). The mean June high of those 67 cities is 15.3°C; San Juan, Argentina is 2.1°C warmer than that mean.
From June to July, average highs fall by 1.0°C to 16.4°C, and monthly rainfall rises from 7.8 mm to 8.2 mm.
The annual picture
June in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
San Juan, Argentina climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 31.0°C19.2°C | 19.2°C | 17 | 3.2 | 13.914 h |
| February | 29.7°C18.0°C | 18.0°C | 20 | 3.4 | 13.213 h |
| March | 27.2°C15.8°C | 15.8°C | 24 | 3.9 | 12.312 h |
| April | 23.2°C11.6°C | 11.6°C | 18 | 3.3 | 11.311 h |
| May | 19.6°C7.6°C | 7.6°C | 10 | 2.6 | 10.511 h |
| June, selected | 17.4°C4.1°C | 4.1°C | 7.8 | 2.0 | 10.110 h |
| July | 16.4°C2.9°C | 2.9°C | 8.2 | 2.2 | 10.310 h |
| August | 19.4°C5.0°C | 5.0°C | 10 | 2.3 | 11.011 h |
| September | 21.8°C8.0°C | 8.0°C | 17 | 3.3 | 11.912 h |
| October | 25.1°C11.8°C | 11.8°C | 21 | 3.5 | 12.813 h |
| November | 28.0°C15.0°C | 15.0°C | 16 | 3.2 | 13.714 h |
| December | 30.3°C17.7°C | 17.7°C | 22 | 3.3 | 14.214 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
June in nearby cities
- Rawson in JuneArgentina · 5 kmHigh 17.1°C · Low 3.5°C · 7.8 mm rain
- Mendoza in JuneArgentina · 153 kmHigh 13.0°C · Low 2.7°C · 21 mm rain
- San Martín in JuneArgentina · 172 kmHigh 14.9°C · Low 4.4°C · 5.5 mm rain
- Colina in JuneChile · 274 kmHigh 16.5°C · Low 5.8°C · 116 mm rain
- Ovalle in JuneChile · 275 kmHigh 20.2°C · Low 8.8°C · 47 mm rain
- San Luis in JuneArgentina · 284 kmHigh 16.4°C · Low 6.2°C · 8.3 mm rain
- Peñalolén in JuneChile · 286 kmHigh 13.7°C · Low 2.8°C · 129 mm rain
- Quilicura in JuneChile · 289 kmHigh 15.5°C · Low 4.2°C · 116 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for San Juan) is explained once on the San Juan, Argentina year overview and on the Sources, method and limits page.
Rawson lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.