Weather in San Miguel de Tucumán in March
Argentina · 20-year averages, March
Shoulder season. March is shoulder season in San Miguel de Tucumán — cheaper, quieter, and a genuine gamble. Highs average 29.8 °C, lows 18.7 °C, and rain falls on 12 days — nothing in the month is working against you.
March ranks 7 of 12 in San Miguel de Tucumán: past the worst of the year but short of July, which is the month to book if the dates are open.
Rain on 12 days, 4 of them heavy. Enough to need a plan B, not enough to need a plan around it. Pack for 29.8 °C days and 18.7 °C nights; the spread matters more here than any single number.
What the averages hide
Averages flatten a month, and this one hides a few things: 15 days top 30 °C — hot spells arrive, but they break. Across the twenty years measured, the hottest March day reached 40.6 °C and the coldest night fell to 11.4 °C, and the wettest single day dropped 102 mm — roughly 80% of the month's rain in one day.
March is moderately variable: 30 mm in the driest year against 253 mm in the wettest, around an average of 127 mm. Roughly two Marchs in three land near that average, and the third does something else entirely.
Wind is light at 8.1 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 72%.
How March sits in the year
The month is on the way down: 1.8 °C cooler than February, with April dropping another 2.6 °C. The first week and the last are not the same trip.
Daylight in March
12.3 hours of daylight, losing 0.8 hours across the month. That is between San Miguel de Tucumán's extremes of 13.8 and 10.5 hours, so days are long enough not to constrain the plan.
An inland climate
With no coast nearby, the year swings a fair way — 26.5 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage.
How busy it gets
Quiet. Few other visitors, cheaper rooms, and a real chance some seasonal operators are shut.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
March in San Miguel de Tucumán versus nearby
If San Miguel de Tucumán is one option among several, the nearby comparison is worth making. Salta is close enough to be a coin toss — within a degree on temperature, 2 days more rain. Córdoba is close enough to be a coin toss — within a degree on temperature, 2 days less rain.
So: March is a compromise. July is 35 points better and is what San Miguel de Tucumán is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.
Every month in San Miguel de Tucumán
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Score |
|---|---|---|---|---|---|---|---|
| January | 33.2 | 21.2 | 13 | 188 | 64 | 13.6 | 43 |
| February | 31.6 | 20.6 | 12 | 155 | 69 | 13 | 53 |
| March | 29.8 | 18.7 | 12 | 127 | 72 | 12.3 | 63 |
| April | 27.2 | 15.7 | 8 | 78 | 73 | 11.5 | 84 |
| May | 23.9 | 11.4 | 4 | 24 | 71 | 10.8 | 94 |
| June | 21.9 | 8.5 | 3 | 20 | 68 | 10.5 | 95 |
| July | 22.1 | 7.5 | 1 | 4 | 59 | 10.6 | 98 |
| August | 25.8 | 9.5 | 1 | 6 | 46 | 11.1 | 98 |
| September | 29.3 | 12.9 | 2 | 14 | 41 | 11.9 | 86 |
| October | 32.8 | 17 | 6 | 52 | 45 | 12.7 | 62 |
| November | 34 | 18.9 | 10 | 102 | 51 | 13.4 | 48 |
| December | 33.6 | 20.5 | 13 | 154 | 60 | 13.8 | 43 |
See all twelve months in San Miguel de Tucumán, or where else to go in March.
Planning the rest of the trip
- Flight time to San Miguel de Tucumán how long you are actually in the air
- San Miguel de Tucumán time zone and the difference from home
- Days until your trip count down to the departure date