Santa Fe climate
Santa Fe (Argentina) has a humid subtropical climate (Köppen Cfa). The average temperature over the year is 19 °C67 °F, and about 1,153 mm45 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Santa Fe climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 3492 | 2169 | 2781 | 1144.5 | 0 |
| Feb | 3289 | 2067 | 2678 | 1385.4 | 0 |
| Mar | 2984 | 1763 | 2373 | 1556.1 | 0 |
| Apr | 2576 | 1356 | 1966 | 1305.1 | 0 |
| May | 2068 | 1050 | 1559 | 582.3 | 0 |
| Jun | 1763 | 744 | 1254 | 311.2 | 0 |
| Jul | 1763 | 642 | 1152 | 251.0 | 2 |
| Aug | 2067 | 745 | 1356 | 371.4 | 0 |
| Sep | 2373 | 1049 | 1661 | 572.2 | 0 |
| Oct | 2679 | 1356 | 2068 | 1194.7 | 0 |
| Nov | 3086 | 1661 | 2373 | 1405.5 | 0 |
| Dec | 3290 | 1966 | 2578 | 1495.9 | 0 |
| Year | 3492 | 642 | 1967 | 1,15345 | 2 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 59% | 49% | 7.2 | 13:00 |
| Feb | 65% | 55% | 6.2 | 13:15 |
| Mar | 69% | 46% | 5.3 | 12:22 |
| Apr | 74% | 48% | 3.9 | 11:21 |
| May | 79% | 55% | 3.0 | 10:32 |
| Jun | 80% | 53% | 2.5 | 10:06 |
| Jul | 77% | 51% | 2.8 | 10:16 |
| Aug | 73% | 46% | 3.7 | 10:59 |
| Sep | 69% | 47% | 4.8 | 11:57 |
| Oct | 68% | 51% | 5.7 | 12:56 |
| Nov | 62% | 44% | 6.9 | 13:47 |
| Dec | 60% | 50% | 7.2 | 14:12 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Santa Fe is like
The warmest month is January, with an average high of 34 °C92 °F and a low of 21 °C69 °F. The coldest is July, when highs average 17 °C63 °F and lows 6 °C42 °F. There is a clear seasonal cycle, with 15.8 °C28.4 °F between the average temperature of the warmest and the coolest month.
It is wet, with about 1,153 mm45 in of precipitation per year. The wettest three-month stretch is February–April, which brings 37% of the annual total. The wettest month is March (155 mm6.1 in), the driest is July (25 mm1.0 in).
Relative humidity ranges from 59% in January to 80% in June. The clearest skies (lowest average cloud amount, 44%) are typical of November. Average wind speed near the ground ranges from 9 km/h (5 mph) in May to 11 km/h (7 mph) in October. Daylight lasts from about 10.1 hours in June to 14.2 hours in December.
Best time to visit Santa Fe
Based on these averages, the most comfortable months for sightseeing and outdoor activities are May and August and September: average highs of 20 °C67 °F to 23 °C73 °F with 37 mm1.4 in to 58 mm2.3 in of precipitation per month.
The most challenging month is December, which is hot, with average highs of 32 °C90 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Santa Fe
- Summer (December–February) — highs 3289 to 34 °C92 °F, lows 1966 to 21 °C69 °F, about 134 mm5.3 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and an umbrella or light rain jacket.
- Autumn (March–May) — highs 2068 to 29 °C84 °F, lows 1050 to 17 °C63 °F, about 114 mm4.5 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses, an extra layer for the cooler mornings and evenings and an umbrella or light rain jacket.
- Winter (June–August) — highs 1763 to 20 °C67 °F, lows 642 to 7 °C45 °F, about 31 mm1.2 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
- Spring (September–November) — highs 2373 to 30 °C86 °F, lows 1049 to 16 °C61 °F, about 105 mm4.1 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses, an extra layer for the cooler mornings and evenings and an umbrella or light rain jacket.
How Santa Fe compares
Compared with Rosario, about 144 km to the south, Santa Fe is on average 1.3 °C2.3 °F warmer and receives 6% more precipitation (1,153 mm45 in vs 1,091 mm43 in). The difference is largest in April (1.4 °C2.4 °F warmer).
Of the 31 places in Argentina covered by World Climates, Santa Fe is the 11th warmest by annual mean temperature and the 8th wettest by annual precipitation. See all of them on the Argentina climate page.
Places in other countries with the most similar temperature and rainfall pattern: Salto (Uruguay, Cfa), Maitland (Australia, Cfa) and Uruguaiana (Brazil, Cfa).
The same NASA POWER grid cell also contains Paraná (pop. 247,139). Their long-term averages in this dataset are essentially the same as for Santa Fe, so they do not have separate pages.
Nearby places
- Rosario 144 km · 18 °C64 °F · 1,091 mm43 in
- San Nicolás de los Arroyos 193 km · 17 °C63 °F · 1,178 mm46 in
- Concordia 257 km · 19 °C66 °F · 1,414 mm56 in
- Salto 262 km · 19 °C66 °F · 1,414 mm56 in
- Córdoba 331 km · 19 °C66 °F · 799 mm31 in
- Río Cuarto 380 km · 17 °C62 °F · 811 mm32 in
- Merlo 383 km · 17 °C62 °F · 1,108 mm44 in
- Buenos Aires 395 km · 18 °C64 °F · 1,103 mm43 in
Frequently asked questions
What is the warmest month in Santa Fe?
January is the warmest month in Santa Fe, with an average high of 34 °C (92 °F) and an average low of 21 °C (69 °F).
What is the coldest month in Santa Fe?
July is the coldest month, with an average high of 17 °C (63 °F) and an average low of 6 °C (42 °F).
When does it rain the most in Santa Fe?
March is the wettest month with about 155 mm (6.1 in) of precipitation; July is the driest with about 25 mm (1.0 in).
What is the best time to visit Santa Fe?
Judging by long-term averages, the most comfortable months are May and August and September.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.