Weather in San Juan, Argentina
Historical monthly conditions · 2021–2025
Monthly averages
Average daily air-temperature lows/highs and peak wind gusts. Rain is the average monthly total.
| Month | Avg low | Avg high | Rain | Cloud cover | Avg peak gust |
|---|---|---|---|---|---|
| January | 19°C | 34°C | 14.1 mm | 27% | 39.0 km/h |
| February | 18°C | 33°C | 9.3 mm | 27% | 37.4 km/h |
| March | 15°C | 30°C | 14.1 mm | 24% | 36.4 km/h |
| April | 10°C | 26°C | 5.6 mm | 20% | 33.4 km/h |
| May | 6°C | 21°C | 4.6 mm | 26% | 31.4 km/h |
| June | 3°C | 18°C | 5.3 mm | 29% | 31.4 km/h |
| July | 2°C | 19°C | 3.8 mm | 23% | 31.1 km/h |
| August | 5°C | 21°C | 15.3 mm | 25% | 34.3 km/h |
| September | 8°C | 25°C | 4.4 mm | 17% | 39.5 km/h |
| October | 11°C | 28°C | 25.7 mm | 20% | 41.5 km/h |
| November | 15°C | 31°C | 11.2 mm | 21% | 43.1 km/h |
| December | 17°C | 33°C | 11.1 mm | 22% | 44.4 km/h |
Weather match by month
Feels like 15°C–30°C · cloud ≤60% · rain ≤0.1 mm/h · gust ≤50 km/h
Feels-like temperature accounts for humidity and wind in shade. Percentages cover 08:00–20:00 local solar time.
| Month | Match rate | |
|---|---|---|
| January | 37.2% | |
| February | 41.5% | |
| March | 54.2% | |
| April | 67.0% | |
| May | 36.0% | |
| June | 17.5% | |
| July | 16.0% | |
| August | 31.6% | |
| September | 52.7% | |
| October | 63.2% | |
| November | 61.4% | |
| December | 49.9% |
About this location and data
- Urban-centre population
- 464,466
- Elevation
- 656 m
- Coordinates
- 31.54°S, 68.54°W
- Urban area
- 113 km²
Weather averages use 1 ERA5 grid cells, weighted by the area of the urban centre in each cell.
2021-2025 recent-weather sample (not a 30-year normal).
How the weather scores are calculatedNearby places with higher scores
Annual results for the default weather criteria: