Climate averages 1991–2020
Tandil weather
in January.
A warm, moderately wet month: the warmest and the joint 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a warm month in Tandil: daytime highs average 27.1°C and nights cool to about 15.3°C. By daytime temperature it is the warmest month of the year.
Expect about 81 mm of rain on roughly 9 days, which makes January a moderately wet month (the joint 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 24 min on an average January day.
The nearest other city in this atlas is Olavarría (116 km away). In January its highs average 27.9°C, 0.8°C warmer than Tandil, with 92 mm of rain.
Among the 67 cities listed in Argentina, Tandil ranks 61st of 67 for the warmest January highs and 18th of 67 for the driest January (rainfall, lowest first). The mean January high of those 67 cities is 29.0°C; Tandil is 1.9°C cooler than that mean.
From January to February, average highs fall by 1.4°C to 25.7°C, and monthly rainfall falls from 81 mm to 73 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
Tandil climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 27.1°C15.3°C | 15.3°C | 81 | 9.1 | 14.414 h |
| February | 25.7°C14.9°C | 14.9°C | 73 | 8.0 | 13.514 h |
| March | 23.3°C13.2°C | 13.2°C | 74 | 8.0 | 12.312 h |
| April | 19.2°C10.1°C | 10.1°C | 81 | 7.6 | 11.211 h |
| May | 15.5°C7.4°C | 7.4°C | 42 | 5.6 | 10.210 h |
| June | 12.4°C4.6°C | 4.6°C | 41 | 4.8 | 9.610 h |
| July | 11.6°C3.5°C | 3.5°C | 40 | 5.3 | 9.910 h |
| August | 14.1°C4.6°C | 4.6°C | 51 | 5.5 | 10.711 h |
| September | 16.0°C5.8°C | 5.8°C | 59 | 7.0 | 11.812 h |
| October | 18.9°C8.4°C | 8.4°C | 85 | 9.5 | 13.013 h |
| November | 22.4°C10.9°C | 10.9°C | 90 | 9.5 | 14.114 h |
| December | 25.9°C13.7°C | 13.7°C | 76 | 8.6 | 14.715 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
- Olavarría in JanuaryArgentina · 116 kmHigh 27.9°C · Low 16.4°C · 92 mm rain
- Necochea in JanuaryArgentina · 141 kmHigh 24.7°C · Low 16.8°C · 75 mm rain
- Mar del Plata in JanuaryArgentina · 158 kmHigh 25.1°C · Low 16.7°C · 77 mm rain
- Mar del Tuyú in JanuaryArgentina · 233 kmHigh 23.5°C · Low 19.3°C · 75 mm rain
- San Vicente in JanuaryArgentina · 264 kmHigh 28.7°C · Low 18.6°C · 89 mm rain
- Ezeiza in JanuaryArgentina · 281 kmHigh 28.8°C · Low 19.0°C · 87 mm rain
- La Plata in JanuaryArgentina · 288 kmHigh 27.4°C · Low 19.9°C · 92 mm rain
- Laferrere in JanuaryArgentina · 291 kmHigh 28.9°C · Low 19.1°C · 87 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 Tandil) is explained once on the Tandil year overview and on the Sources, method and limits page.