Climate averages 1991–2020
San Luis 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 Luis: daytime highs average 16.4°C and nights cool to about 6.2°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 8.3 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 9 h 59 min on an average June day.
The nearest other city in this atlas is Villa Mercedes, Argentina (91 km away). In June its highs average 16.0°C, about as warm as San Luis, with 11 mm of rain.
Among the 67 cities listed in Argentina, San Luis ranks 19th of 67 for the warmest June highs and 4th of 67 for the driest June (rainfall, lowest first). The mean June high of those 67 cities is 15.3°C; San Luis is 1.1°C warmer than that mean.
From June to July, average highs fall by 0.5°C to 15.9°C, and monthly rainfall rises from 8.3 mm to 9.1 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 Luis climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.7°C19.2°C | 19.2°C | 107 | 13.2 | 14.114 h |
| February | 28.2°C18.1°C | 18.1°C | 82 | 10.9 | 13.313 h |
| March | 26.0°C16.4°C | 16.4°C | 80 | 10.0 | 12.312 h |
| April | 21.8°C12.5°C | 12.5°C | 53 | 7.0 | 11.311 h |
| May | 18.6°C9.1°C | 9.1°C | 25 | 4.2 | 10.410 h |
| June, selected | 16.4°C6.2°C | 6.2°C | 8.3 | 1.9 | 10.010 h |
| July | 15.9°C5.0°C | 5.0°C | 9.1 | 2.1 | 10.210 h |
| August | 18.9°C7.0°C | 7.0°C | 15 | 2.6 | 10.911 h |
| September | 21.3°C9.4°C | 9.4°C | 30 | 4.6 | 11.912 h |
| October | 23.9°C12.5°C | 12.5°C | 66 | 8.7 | 12.913 h |
| November | 26.6°C15.5°C | 15.5°C | 89 | 11.7 | 13.814 h |
| December | 28.9°C18.0°C | 18.0°C | 101 | 13.1 | 14.314 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
- Villa Mercedes, Argentina in JuneArgentina · 91 kmHigh 16.0°C · Low 5.6°C · 11 mm rain
- Río Cuarto in JuneArgentina · 184 kmHigh 15.6°C · Low 6.1°C · 14 mm rain
- San Martín in JuneArgentina · 201 kmHigh 14.9°C · Low 4.4°C · 5.5 mm rain
- San Rafael in JuneArgentina · 237 kmHigh 14.6°C · Low 2.7°C · 18 mm rain
- Mendoza in JuneArgentina · 239 kmHigh 13.0°C · Low 2.7°C · 21 mm rain
- Rawson in JuneArgentina · 282 kmHigh 17.1°C · Low 3.5°C · 7.8 mm rain
- San Juan, Argentina in JuneArgentina · 284 kmHigh 17.4°C · Low 4.1°C · 7.8 mm rain
- Córdoba in JuneArgentina · 290 kmHigh 16.6°C · Low 6.4°C · 16 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 Luis) is explained once on the San Luis year overview and on the Sources, method and limits page.