Climate - Mendoza (Argentina)

The climate of Mendoza is arid subtropical, affected by altitude, with dry, mild winters (but during which it can get cold at night), and very hot, quite rainy summers. In summer, the rains (which, however, are usually not abundant) often occur in the form of thunderstorms. January is the wettest month.
The city is located in north-central Argentina, at 32 degrees south latitude, and 750 meters (2,460 feet) above sea level. About 110 km (70 mi) to the west is Aconcagua, the highest mountain in the Americas with its 6,962 meters (22,841 feet).
Despite the altitude, in summer, from December to February, there can be heat waves.
Since winter is dry, snow in Mendoza is rare, however, it can occur from time to time, such as in July 2007 and in July 2010. On the other hand, night frosts are quite frequent.

The average temperature of the coldest month (July) is of 8.8 °C (47.8 °F), that of the warmest month (January) is of 26.4 °C (79.6 °F). Here are the average temperatures.
Precipitation amounts to 235 millimeters (9.3 inches) per year: it is therefore scarce. It ranges from 6 mm (0.2 in) in the driest month (June) to 50 mm (2 in) in the wettest one (January). Here is the average precipitation.
On average, there are around 2870 sunshine hours per year. Here are the average sunshine hours per day.

Mendoza - Weather by month

Based on the period 1991-2020
(January - February - March - April - May - June - July - August - September - October - November - December)

In January, the warmest month of the year, the average temperature is of 26.4 °C (80 °F), with a minimum of 19.2 °C (66.5 °F) and a maximum of 33.7 °C (92.6 °F).
On the coldest nights of the month, the temperature usually drops to around 13.5 °C (56.5 °F). However, in January 2005, it dropped to 8 °C (46.4 °F).
On the warmest days of the month, the temperature usually reaches around 39 °C (102 °F). However, in January 2003, it reached 44.4 °C (111.9 °F).
Precipitation amounts to 50 mm (2 in), distributed over 6 days.
On average, there are 300 hours of sunshine per month, i.e. 9.5 hours per day.
The average humidity is 46%.
The average wind speed is 10 kph (6 kph).

In February, the average temperature is of 24.7 °C (76 °F), with a minimum of 17.7 °C (63.9 °F) and a maximum of 31.7 °C (89.1 °F).
On the coldest nights of the month, the temperature usually drops to around 11.5 °C (53 °F). However, in February 1995, it dropped to 7.8 °C (46 °F).
On the warmest days of the month, the temperature usually reaches around 37.5 °C (99.5 °F). However, in February 2017, it reached 40.5 °C (104.9 °F).
Precipitation amounts to 35 mm (1.4 in), distributed over 5 days.
On average, there are 255 hours of sunshine per month, i.e. 9 hours per day.
The average humidity is 51%.
The average wind speed is 9 kph (5 kph).

In March, the average temperature is of 22.3 °C (72 °F), with a minimum of 15.5 °C (60 °F) and a maximum of 29 °C (84.2 °F).
On the coldest nights of the month, the temperature usually drops to around 8.5 °C (47.5 °F). However, in March 1999, it dropped to 5.1 °C (41.2 °F).
On the warmest days of the month, the temperature usually reaches around 34.5 °C (94.5 °F). However, in March 1999, it reached 37.7 °C (99.9 °F).
Precipitation amounts to 35 mm (1.4 in), distributed over 5 days.
On average, there are 235 hours of sunshine per month, i.e. 7.5 hours per day.
The average humidity is 57%.
The average wind speed is 7 kph (5 kph).

In April, the average temperature is of 17.3 °C (63 °F), with a minimum of 10.6 °C (51.1 °F) and a maximum of 24 °C (75.2 °F).
On the coldest nights of the month, the temperature usually drops to around 4 °C (39.5 °F). However, in April 2008, it dropped to -0.8 °C (30.6 °F).
On the warmest days of the month, the temperature usually reaches around 29.5 °C (85.5 °F). However, in April 2011, it reached 33.2 °C (91.8 °F).
Precipitation amounts to 15 mm (0.6 in), distributed over 4 days.
On average, there are 220 hours of sunshine per month, i.e. 7.5 hours per day.
The average humidity is 61%.
The average wind speed is 6 kph (4 kph).

In May, the average temperature is of 12.9 °C (55 °F), with a minimum of 6.3 °C (43.3 °F) and a maximum of 19.5 °C (67.1 °F).
On the coldest nights of the month, the temperature usually drops to around 0.5 °C (32.5 °F). However, in May 2008, it dropped to -3.2 °C (26.2 °F).
On the warmest days of the month, the temperature usually reaches around 25.5 °C (78 °F). However, in May 1997, it reached 31.7 °C (89.1 °F).
Precipitation amounts to 10 mm (0.4 in), distributed over 3 days.
On average, there are 195 hours of sunshine per month, i.e. 6.5 hours per day.
The average humidity is 65%.
The average wind speed is 5 kph (3 kph).

In June, the average temperature is of 9.5 °C (49 °F), with a minimum of 2.4 °C (36.3 °F) and a maximum of 16.5 °C (61.7 °F).
On the coldest nights of the month, the temperature usually drops to around -2.5 °C (27.5 °F). However, in June 1994, it dropped to -5.6 °C (21.9 °F).
On the warmest days of the month, the temperature usually reaches around 23.5 °C (74 °F). However, in June 2006, it reached 30.4 °C (86.7 °F).
Precipitation amounts to only 6 mm (0.2 in), distributed over 2 days.
On average, there are 170 hours of sunshine per month, i.e. 5.5 hours per day.
The average humidity is 63%.
The average wind speed is 5 kph (3 kph).

In July, the coldest month of the year, the average temperature is of 8.8 °C (48 °F), with a minimum of 1.4 °C (34.5 °F) and a maximum of 16.1 °C (61 °F).
On the coldest nights of the month, the temperature usually drops to around -3.5 °C (25.5 °F). However, in July 2007, it dropped to -7.5 °C (18.5 °F).
On the warmest days of the month, the temperature usually reaches around 23.5 °C (74.5 °F). However, in July 2011, it reached 29 °C (84.2 °F).
Precipitation amounts to only 8 mm (0.3 in), distributed over 3 days.
On average, there are 185 hours of sunshine per month, i.e. 6 hours per day.
The average humidity is 58%.
The average wind speed is 6 kph (4 kph).

In August, the average temperature is of 11.5 °C (53 °F), with a minimum of 3.8 °C (38.8 °F) and a maximum of 19.2 °C (66.6 °F).
On the coldest nights of the month, the temperature usually drops to around -2 °C (28.5 °F). However, in August 1999, it dropped to -5.3 °C (22.5 °F).
On the warmest days of the month, the temperature usually reaches around 27.5 °C (81.5 °F). However, in August 2015, it reached 33 °C (91.4 °F).
Precipitation amounts to only 8 mm (0.3 in), distributed over 2 days.
On average, there are 230 hours of sunshine per month, i.e. 7.5 hours per day.
The average humidity is 49%.
The average wind speed is 7 kph (4 kph).

In September, the average temperature is of 15.0 °C (59 °F), with a minimum of 7.5 °C (45.4 °F) and a maximum of 22.6 °C (72.7 °F).
On the coldest nights of the month, the temperature usually drops to around 1 °C (33.5 °F). However, in September 2019, it dropped to -2 °C (28.4 °F).
On the warmest days of the month, the temperature usually reaches around 31 °C (87.5 °F). However, in September 2018, it reached 36 °C (96.8 °F).
Precipitation amounts to 15 mm (0.6 in), distributed over 4 days.
On average, there are 225 hours of sunshine per month, i.e. 7.5 hours per day.
The average humidity is 45%.
The average wind speed is 8 kph (5 kph).

In October, the average temperature is of 19.2 °C (67 °F), with a minimum of 11.8 °C (53.2 °F) and a maximum of 26.6 °C (79.9 °F).
On the coldest nights of the month, the temperature usually drops to around 5 °C (40.5 °F). However, in October 2002, it dropped to 1 °C (33.8 °F).
On the warmest days of the month, the temperature usually reaches around 34 °C (93.5 °F). However, in October 2009, it reached 40.1 °C (104.2 °F).
Precipitation amounts to 10 mm (0.4 in), distributed over 3 days.
On average, there are 280 hours of sunshine per month, i.e. 9 hours per day.
The average humidity is 43%.
The average wind speed is 9 kph (6 kph).

In November, the average temperature is of 22.6 °C (73 °F), with a minimum of 15.1 °C (59.2 °F) and a maximum of 30.1 °C (86.2 °F).
On the coldest nights of the month, the temperature usually drops to around 8 °C (46.5 °F). However, in November 1992, it dropped to 2.7 °C (36.9 °F).
On the warmest days of the month, the temperature usually reaches around 36.5 °C (98 °F). However, in November 1991, it reached 40 °C (104 °F).
Precipitation amounts to 15 mm (0.6 in), distributed over 4 days.
On average, there are 295 hours of sunshine per month, i.e. 10 hours per day.
The average humidity is 41%.
The average wind speed is 10 kph (6 kph).

In December, the average temperature is of 25.4 °C (78 °F), with a minimum of 18 °C (64.4 °F) and a maximum of 32.8 °C (91.1 °F).
On the coldest nights of the month, the temperature usually drops to around 11 °C (52 °F). However, in December 2001, it dropped to 6.3 °C (43.3 °F).
On the warmest days of the month, the temperature usually reaches around 39 °C (102 °F). However, in December 2012, it reached 43 °C (109.4 °F).
Precipitation amounts to 25 mm (1 in), distributed over 4 days.
On average, there are 285 hours of sunshine per month, i.e. 9 hours per day.
The average humidity is 42%.
The average wind speed is 10 kph (6 kph).