Tafi Viejo climate — normals and trends
Tafi Viejo (Argentina) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 17.5 °C and it receives 2,416 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is January (22.5 °C on average) and the coldest is July (11.3 °C). Rainfall peaks in January.
Tafi Viejo averages 2 frost days, 34 hot days (≥ 30 °C) and 192 rainy days per year.
Tafi Viejo has warmed by +1.1 °C between 1940 and 2025, or +0.13 °C per decade. This trend is statistically significant.
The number of frost days there went from about 1 to 3 per year over the period.
The hottest day of the period reached 40.2 °C (on 31 October 2009) and the coldest -6.2 °C (on 15 June 1961).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
Tafi ViejoTucuman
- coords
- -26.73°, -65.26°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.5°C
Average daily high
22.7°C
Average daily low
13.2°C
Annual rainfall
2,416mm
Sunshine / day
9.6h
Mean relative humidity
78%
Average peak wind
8.7km/h
Seasonal range
11.2°C
Frost days (< 0 °C)
2 d/yr
Hot days (≥ 30 °C)
34 d/yr
Rainy days (≥ 1 mm)
192 d/yr
Annual snowfall
1.0 cm
Average feels-like high
24.3 °C
Average feels-like low
13.2 °C
Average peak gust
26.9 km/h
Tropical nights (≥ 20 °C)
22 d/yr
Solar radiation
16.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.1 °C
since 1940
+0.1 °C per decade · r² = 0.43 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
40.2 °C
31 October 2009
Coldest day
-6.2 °C
15 June 1961
Wettest day
286 mm
19 January 1973
Windiest day
33.6 km/h
12 July 1941
Strongest gust
83.5 km/h
15 November 2013
Hottest feels-like
44.1 °C
12 January 1973
Coldest feels-like
-10.0 °C
15 June 1961
Snowiest day
15.3 cm
16 July 2010
Sunniest day
13.6 h
6 December 2019
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 28.4 °C | +1.2 °C | 213 mm | -138 mm |
| Feb | 31.3 °C | +5.1 °C | 129 mm | -184 mm |
| Mar | 25.1 °C | +0.5 °C | 196 mm | -127 mm |
| Apr | 21.8 °C | -0.1 °C | 98 mm | -105 mm |
| May | 21.3 °C | +2.0 °C | 90 mm | -47 mm |
| Jun | 16.7 °C | -0.3 °C | 22 mm | -60 mm |
| Jul | 18.0 °C | +0.6 °C | 45 mm | -25 mm |
| Aug | 20.0 °C | +0.1 °C | 45 mm | -24 mm |
| Sep | 24.4 °C | +2.4 °C | 54 mm | -58 mm |
| Oct | 25.4 °C | +1.2 °C | 119 mm | -87 mm |
| Nov | 27.2 °C | +1.4 °C | 84 mm | -174 mm |
| Dec | 28.0 °C | +0.9 °C | 307 mm | +13 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Tafi Viejo?
Tafi Viejo has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 17.5 °C and it receives 2,416 mm of precipitation per year.
What is the hottest day ever recorded in Tafi Viejo?
The hottest day measured in Tafi Viejo between 1940 and 2025 was 31 October 2009, reaching 40.2 °C.
What is the coldest day in Tafi Viejo?
The coldest day measured in Tafi Viejo between 1940 and 2025 was 15 June 1961, at -6.2 °C.
Does it snow in Tafi Viejo?
Almost never: Tafi Viejo sees virtually no snow, with about 2 frost days per year.
Has the climate of Tafi Viejo warmed?
Yes: Tafi Viejo warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Tafi Viejo?
The wettest day measured in Tafi Viejo between 1940 and 2025 was 19 January 1973, with 286 mm of rain in 24 hours.
What was the windiest day in Tafi Viejo?
The windiest day measured in Tafi Viejo between 1940 and 2025 was 12 July 1941, with winds reaching 33.6 km/h.
What is the warmest month in Tafi Viejo?
The warmest month in Tafi Viejo is January (22.5 °C on average); the coldest is July (11.3 °C).
How much does it rain in Tafi Viejo?
Tafi Viejo receives on average 2,416 mm of precipitation per year, spread over about 192 rainy days.
Is it sunny in Tafi Viejo?
Tafi Viejo gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.
What is the biggest single-day snowfall in Tafi Viejo?
The heaviest 24-hour snowfall measured in Tafi Viejo between 1940 and 2025 was 16 July 2010, with 15.3 cm.
Are there tropical nights in Tafi Viejo?
Yes: Tafi Viejo has on average 22 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Tafi Viejo?
In Tafi Viejo, between 1940 and 2025, the highest apparent temperature reached 44.1 °C on 12 January 1973, and the lowest was -10.0 °C on 15 June 1961.
Compare Tafi Viejo with another city
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Nearby cities
The climate around Tafi Viejo