Climate averages 1991–2020
San Rafael weather
in April.
A mild, moderately wet month: the 7th warmest and the 6th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
April is a mild month in San Rafael: daytime highs average 20.9°C and nights cool to about 10.1°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 42 mm of rain on roughly 6 days, which makes April a moderately wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 15 min on an average April day.
The nearest other city in this atlas is San Martín (171 km away). In April its highs average 22.0°C, 1.1°C warmer than San Rafael, with 20 mm of rain.
Among the 67 cities listed in Argentina, San Rafael ranks joint 51st of 67 for the warmest April highs and 11th of 67 for the driest April (rainfall, lowest first). The mean April high of those 67 cities is 21.8°C; San Rafael is 0.9°C cooler than that mean.
From April to May, average highs fall by 3.8°C to 17.1°C, and monthly rainfall falls from 42 mm to 31 mm.
The annual picture
April 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 Rafael climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.5°C18.3°C | 18.3°C | 45 | 8.8 | 14.214 h |
| February | 28.7°C17.0°C | 17.0°C | 48 | 7.2 | 13.413 h |
| March | 25.7°C14.6°C | 14.6°C | 48 | 6.8 | 12.312 h |
| April, selected | 20.9°C10.1°C | 10.1°C | 42 | 6.0 | 11.211 h |
| May | 17.1°C6.5°C | 6.5°C | 31 | 5.0 | 10.310 h |
| June | 14.6°C2.7°C | 2.7°C | 18 | 3.7 | 9.910 h |
| July | 13.8°C1.5°C | 1.5°C | 16 | 3.2 | 10.110 h |
| August | 16.5°C3.2°C | 3.2°C | 22 | 3.4 | 10.811 h |
| September | 19.4°C6.3°C | 6.3°C | 28 | 4.7 | 11.812 h |
| October | 22.7°C10.0°C | 10.0°C | 60 | 7.6 | 12.913 h |
| November | 26.3°C13.7°C | 13.7°C | 53 | 8.0 | 13.914 h |
| December | 29.3°C16.7°C | 16.7°C | 53 | 8.6 | 14.414 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
April in nearby cities
- San Martín in AprilArgentina · 171 kmHigh 22.0°C · Low 11.9°C · 20 mm rain
- Mendoza in AprilArgentina · 198 kmHigh 19.4°C · Low 10.2°C · 40 mm rain
- Rancagua in AprilChile · 226 kmHigh 21.9°C · Low 8.7°C · 44 mm rain
- Puente Alto in AprilChile · 235 kmHigh 21.8°C · Low 8.8°C · 39 mm rain
- San Luis in AprilArgentina · 237 kmHigh 21.8°C · Low 12.5°C · 53 mm rain
- Paine in AprilChile · 239 kmHigh 23.6°C · Low 10.1°C · 29 mm rain
- Peñalolén in AprilChile · 240 kmHigh 21.0°C · Low 10.1°C · 39 mm rain
- San Bernardo in AprilChile · 246 kmHigh 22.8°C · Low 9.5°C · 28 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 Rafael) is explained once on the San Rafael year overview and on the Sources, method and limits page.