Climate averages 1991–2020
General Roca weather
in January.
A hot, fairly dry month: the warmest and the joint 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a hot month in General Roca: daytime highs average 31.8°C and nights cool to about 18.6°C. By daytime temperature it is the warmest month of the year.
Expect about 18 mm of rain on roughly 3 days, which makes January a fairly dry month (the joint 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 34 min on an average January day.
The nearest other city in this atlas is Cipolletti (37 km away). In January its highs average 31.8°C, about as warm as General Roca, with 12 mm of rain.
Among the 67 cities listed in Argentina, General Roca ranks joint 4th of 67 for the warmest January highs and 7th of 67 for the driest January (rainfall, lowest first). The mean January high of those 67 cities is 29.0°C; General Roca is 2.8°C warmer than that mean.
From January to February, average highs fall by 1.8°C to 30.0°C, and monthly rainfall rises from 18 mm to 22 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
General Roca climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 31.8°C18.6°C | 18.6°C | 18 | 3.1 | 14.615 h |
| February | 30.0°C17.4°C | 17.4°C | 22 | 3.0 | 13.614 h |
| March | 26.6°C15.0°C | 15.0°C | 25 | 3.5 | 12.412 h |
| April | 21.2°C10.7°C | 10.7°C | 29 | 3.5 | 11.111 h |
| May | 16.3°C7.1°C | 7.1°C | 27 | 4.9 | 10.010 h |
| June | 12.9°C4.3°C | 4.3°C | 20 | 4.4 | 9.59 h |
| July | 12.3°C3.1°C | 3.1°C | 18 | 3.6 | 9.710 h |
| August | 15.3°C4.6°C | 4.6°C | 14 | 2.9 | 10.611 h |
| September | 18.7°C7.0°C | 7.0°C | 21 | 3.5 | 11.812 h |
| October | 22.4°C10.3°C | 10.3°C | 36 | 4.3 | 13.113 h |
| November | 26.8°C13.9°C | 13.9°C | 22 | 3.2 | 14.214 h |
| December | 30.2°C17.0°C | 17.0°C | 16 | 2.6 | 14.815 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
- Cipolletti in JanuaryArgentina · 37 kmHigh 31.8°C · Low 18.4°C · 12 mm rain
- Neuquén in JanuaryArgentina · 42 kmHigh 31.6°C · Low 18.3°C · 12 mm rain
- San Carlos de Bariloche in JanuaryArgentina · 394 kmHigh 19.9°C · Low 9.2°C · 31 mm rain
- Santa Rosa, Argentina in JanuaryArgentina · 395 kmHigh 30.1°C · Low 19.0°C · 82 mm rain
- Villa Mercedes, Chile in JanuaryChile · 425 kmHigh 24.9°C · Low 12.0°C · 26 mm rain
- Padre Las Casas in JanuaryChile · 435 kmHigh 23.4°C · Low 10.8°C · 29 mm rain
- Temuco in JanuaryChile · 435 kmHigh 23.9°C · Low 11.1°C · 29 mm rain
- Los Ángeles in JanuaryChile · 451 kmHigh 26.5°C · Low 12.9°C · 15 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 General Roca) is explained once on the General Roca year overview and on the Sources, method and limits page.