Climate averages 1991–2020
San Rafael weather
in January.
A hot, moderately wet month: the warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a hot month in San Rafael: daytime highs average 30.5°C and nights cool to about 18.3°C. By daytime temperature it is the warmest month of the year.
Expect about 45 mm of rain on roughly 9 days, which makes January a moderately wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 11 min on an average January day.
The nearest other city in this atlas is San Martín (171 km away). In January its highs average 31.3°C, 0.9°C warmer than San Rafael, with 48 mm of rain.
Among the 67 cities listed in Argentina, San Rafael ranks joint 16th of 67 for the warmest January highs and 10th of 67 for the driest January (rainfall, lowest first). The mean January high of those 67 cities is 29.0°C; San Rafael is 1.4°C warmer than that mean.
From January to February, average highs fall by 1.8°C to 28.7°C, and monthly rainfall rises from 45 mm to 48 mm.
The annual picture
January 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, selected | 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 | 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
January in nearby cities
- San Martín in JanuaryArgentina · 171 kmHigh 31.3°C · Low 20.0°C · 48 mm rain
- Mendoza in JanuaryArgentina · 198 kmHigh 28.4°C · Low 17.8°C · 48 mm rain
- Rancagua in JanuaryChile · 226 kmHigh 28.0°C · Low 16.8°C · 6.2 mm rain
- Puente Alto in JanuaryChile · 235 kmHigh 27.7°C · Low 15.8°C · 15 mm rain
- San Luis in JanuaryArgentina · 237 kmHigh 29.7°C · Low 19.2°C · 107 mm rain
- Paine in JanuaryChile · 239 kmHigh 30.0°C · Low 17.6°C · 3.4 mm rain
- Peñalolén in JanuaryChile · 240 kmHigh 26.8°C · Low 15.9°C · 15 mm rain
- San Bernardo in JanuaryChile · 246 kmHigh 28.9°C · Low 16.1°C · 2.7 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.