San Miguel de Tucumán weather in December
In December, San Miguel de Tucumán has daytime highs averaging 28 °C, nights around 19 °C, with 17 wet days. Figures are 1991–2020 climate normals.
- 28.2°C Average high
- 18.8°C Average low
- 17days Wet days
- 244mm Rainfall
- 14h Daylight
Daily temperatures through December
How December develops
Averages for the first, middle and last part of the month, from daily 1991–2020 normals. Chance of rain is the share of years in which that calendar day recorded more than 1 mm.
| Days | Avg high | Avg low | Chance of rain |
|---|---|---|---|
| 1–10 December | 27.1 °C | 17.9 °C | 56 % |
| 11–20 December | 28.4 °C | 18.9 °C | 52 % |
| 21–31 December | 28.9 °C | 19.6 °C | 55 % |
- Average highs rise from 27.1 °C early in December to 28.9 °C by the end of it.
What to expect
| Measure | Typical December | Share of the month |
|---|---|---|
| Days above 25 °C | 25 of 31 | 80 % |
| Days above 30 °C | 9.8 of 31 | 32 % |
| Days below 0 °C | 0 of 31 | 0 % |
| Days with more than 1 mm rain | 17 of 31 | 54 % |
Conditions in December
| Measure | Average |
|---|---|
| Mean temperature | 23 °C |
| Record high (1991–2020) | 39 °C |
| Record low (1991–2020) | 10 °C |
| Relative humidity | 75 % |
| Wind speed | 10 km/h |
| Cloud cover | 59 % |
December compared with the months around it
| Month | Avg high | Rainfall | Cloud |
|---|---|---|---|
| January | 27.9 °C | 315 mm | 66 % |
| February | 26.7 °C | 261 mm | 65 % |
| October | 26.1 °C | 160 mm | 50 % |
| November | 27.2 °C | 203 mm | 55 % |
| December | 28.2 °C | 244 mm | 59 % |
See all twelve months for San Miguel de Tucumán
- December is the warmest month in San Miguel de Tucumán.
- It is the 9th driest month of the year.
- It ranks 9th for least cloud cover.
- Days last about 14 hours from sunrise to sunset.
- It rains on 17 of 31 days — 54 % of the month.
- Nights are about 9.4 °C cooler than the middle of the day.
- The hottest December day on record since 1991 reached 39 °C, 10 °C above the usual daytime high.
QuestionsDecember in San Miguel de Tucumán, answered
How warm is San Miguel de Tucumán in December?
Daily highs average 28 °C and nights fall to about 19 °C, a spread of 9.4 °C between afternoon and dawn. That makes December the 2nd warmest month of the year here.
Does it rain much in San Miguel de Tucumán in December?
December averages 244 mm of rain, spread over about 17 of the 31 days — 54 % of the month. Cloud cover averages 59 % of the sky.
How long are the days in December?
San Miguel de Tucumán averages 14 hours between sunrise and sunset in December. Day length is computed from latitude and date, so it is exact rather than modelled — but it says nothing about how much of that time is sunny.
Data sources and method
- ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
- Open-Meteo — Open-Meteo.com. CC BY 4.0
- NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
- GeoNames — GeoNames.org. CC BY 4.0
- Normal period
- 1991–2020
- Dataset version
- era5-1991-2020-scores1.1
- Last processed
Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: daylight hours, beach and comfort scores, monthly rankings, threshold day counts, chance of a wet day by date, ten-day averages within the month. Full formulas are on the methodology page.
Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.