San Martín is a city of 80,000 inhabitants located in the center-north of Argentina, about 25 km (15 mi) southeast of Mendoza, at 33 degrees south latitude and 660 meters (2,165 feet) above sea level.
, influenced by the altitude, with mild, dry winters (but during which it can be cold at night), and hot, quite rainy summers. In summer, rainfall (which is generally not abundant) often occurs in the form of thunderstorms.
The climate is similar to that of Mendoza, although it is slightly less hot in summer.
, from December to February (and sometimes also in spring, in October and November), there can be heat waves, in which the temperature can reach or exceed 40 °C (104 °F). In January 2003, it reached 42.7 °C (108.9 °F).
Even in summer, however, there can be outbursts of cool air from the south, perhaps accompanied by a thunderstorm, which can greatly lower the temperature for two or three days, so much so that at night it can be very cool even in midsummer.
is dry, snow in San Martín is rare, however, it can occur from time to time.
On the other hand, night frosts are quite frequent. In July 1965 the temperature dropped to -9.4 °C (15 °F).
On the other hand, the wind that comes down from the mountains, called Zonda and similar to the Föhn and the Chinook, is able to raise the temperature by several degrees, it is no coincidence that the heat records are around 30 °C (86 °F) even in winter.
. Here are the average temperatures.
January, the hottest month of the year, is generally a warm to hot month. However, there are remarkable differences between night and day. The average temperature is of
25.6 °C, with a minimum of
18.3 °C and a maximum of
32.9 °C.
On the coldest nights of the month, the temperature usually drops to around
13 °C. However, it dropped to
9.4 °C in January 2015.
On the warmest days of the month, the temperature usually reaches around
39 °C. However, it reached
42.7 °C in January 2003.
Precipitation amounts to
48 mm, distributed over 5 days.
The day lasts on average 14 hours and 0 minutes.
There are on average 10.5 hours of sunshine per day. So, the sun shines 74% of the time.
The average humidity is 49%.
The average wind speed is of
7.2 kph.
February is generally a warm to hot month. However, there are remarkable differences between night and day. The average temperature is of
24 °C, with a minimum of
16.9 °C and a maximum of
31.2 °C.
On the coldest nights of the month, the temperature usually drops to around
10.5 °C. However, it dropped to
6.7 °C in February 2007.
On the warmest days of the month, the temperature usually reaches around
37 °C. However, it reached
39.8 °C in February 2017.
Precipitation amounts to
45 mm, distributed over 4 days.
The day lasts on average 13 hours and 10 minutes.
There are on average 9.5 hours of sunshine per day. So, the sun shines 71% of the time.
The average humidity is 55%.
The average wind speed is of
6.6 kph.
March is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of
21.8 °C, with a minimum of
15 °C and a maximum of
28.5 °C.
On the coldest nights of the month, the temperature usually drops to around
8.5 °C. However, it dropped to
0.8 °C in March 1994.
On the warmest days of the month, the temperature usually reaches around
35.5 °C. However, it reached
37.9 °C in March 2008.
Precipitation amounts to
47.1 mm, distributed over 3 days.
The day lasts on average 12 hours and 10 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 66% of the time.
The average humidity is 59%.
The average wind speed is of
5.9 kph.
April is generally a very mild month. However, there are remarkable differences between night and day. The average temperature is of
17 °C, with a minimum of
10.5 °C and a maximum of
23.6 °C.
On the coldest nights of the month, the temperature usually drops to around
4 °C. However, it dropped to
-0.3 °C in April 2008.
On the warmest days of the month, the temperature usually reaches around
30.5 °C. However, it reached
35 °C in April 2010.
Precipitation amounts to
19.5 mm, distributed over 2 days.
The day lasts on average 11 hours and 10 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 64% of the time.
The average humidity is 62%.
The average wind speed is of
5.5 kph.
May is generally a mild month. The average temperature is of
12.9 °C, with a minimum of
6.6 °C and a maximum of
19.2 °C.
On the coldest nights of the month, the temperature usually drops to around
0.5 °C. However, it dropped to
-6.6 °C in May 1993.
On the warmest days of the month, the temperature usually reaches around
26 °C. However, it reached
31 °C in May 1994.
Precipitation amounts to
10.9 mm, distributed over 2 days.
The day lasts on average 10 hours and 25 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 61% of the time.
The average humidity is 64%.
The average wind speed is of
4.8 kph.
June is generally a mild month. However, there are remarkable differences between night and day. The average temperature is of
9.6 °C, with a minimum of
3 °C and a maximum of
16.2 °C.
On the coldest nights of the month, the temperature usually drops to around
-2.5 °C. However, it dropped to
-4.7 °C in June 1993.
On the warmest days of the month, the temperature usually reaches around
23 °C. However, it reached
30.1 °C in June 2000.
Precipitation amounts to only
3.1 mm, and all occurs in one day.
The day lasts on average 10 hours and 0 minutes. June 21, the winter solstice, is the shortest day of the year in the Southern Hemisphere.
There are on average 6.5 hours of sunshine per day. So, the sun shines 64% of the time.
The average humidity is 62%.
The average wind speed is of
4.6 kph.
July, the coldest month of the year, is generally a mild month. However, there are remarkable differences between night and day. The average temperature is of
8.8 °C, with a minimum of
1.9 °C and a maximum of
15.8 °C.
On the coldest nights of the month, the temperature usually drops to around
-3.5 °C. However, it dropped to
-10 °C in July 2001.
On the warmest days of the month, the temperature usually reaches around
23.5 °C. However, it reached
27.6 °C in July 2011.
Precipitation amounts to only
3.1 mm, and all occurs in one day.
The day lasts on average 10 hours and 10 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 69% of the time.
The average humidity is 56%.
The average wind speed is of
5.3 kph.
August is generally a mild month. However, there are remarkable differences between night and day. The average temperature is of
11.6 °C, with a minimum of
4.1 °C and a maximum of
19 °C.
On the coldest nights of the month, the temperature usually drops to around
-2 °C. However, it dropped to
-9.8 °C in August 1994.
On the warmest days of the month, the temperature usually reaches around
28.5 °C. However, it reached
33.1 °C in August 1996.
Precipitation amounts to only
5.9 mm, and all occurs in one day.
The day lasts on average 11 hours and 0 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 69% of the time.
The average humidity is 50%.
The average wind speed is of
6.1 kph.
September is generally a very mild month. However, there are remarkable differences between night and day. The average temperature is of
14.8 °C, with a minimum of
7.3 °C and a maximum of
22.2 °C.
On the coldest nights of the month, the temperature usually drops to around
0.5 °C. However, it dropped to
-2.8 °C in September 1993.
On the warmest days of the month, the temperature usually reaches around
30.5 °C. However, it reached
36.5 °C in September 2018.
Precipitation amounts to only
8.4 mm, and all occurs in one day.
The day lasts on average 11 hours and 55 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 69% of the time.
The average humidity is 47%.
The average wind speed is of
7.2 kph.
October is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of
18.5 °C, with a minimum of
11.1 °C and a maximum of
25.9 °C.
On the coldest nights of the month, the temperature usually drops to around
4.5 °C. However, it dropped to
-0.4 °C in October 2020.
On the warmest days of the month, the temperature usually reaches around
34.5 °C. However, it reached
40.4 °C in October 2009.
Precipitation amounts to
15.4 mm, distributed over 2 days.
The day lasts on average 13 hours and 0 minutes.
There are on average 9 hours of sunshine per day. So, the sun shines 70% of the time.
The average humidity is 45%.
The average wind speed is of
7.9 kph.
November is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of
21.9 °C, with a minimum of
14.4 °C and a maximum of
29.4 °C.
On the coldest nights of the month, the temperature usually drops to around
7.5 °C. However, it dropped to
-0.3 °C in November 1992.
On the warmest days of the month, the temperature usually reaches around
36.5 °C. However, it reached
39.3 °C in November 2012.
Precipitation amounts to
26.6 mm, distributed over 3 days.
The day lasts on average 13 hours and 50 minutes.
There are on average 10.5 hours of sunshine per day. So, the sun shines 75% of the time.
The average humidity is 45%.
The average wind speed is of
8.3 kph.
December is generally a warm to hot month. However, there are remarkable differences between night and day. The average temperature is of
24.6 °C, with a minimum of
17 °C and a maximum of
32.2 °C.
On the coldest nights of the month, the temperature usually drops to around
10 °C. However, it dropped to
3.8 °C in December 2002.
On the warmest days of the month, the temperature usually reaches around
38.5 °C. However, it reached
41 °C in December 1995.
Precipitation amounts to
29.6 mm, distributed over 4 days.
The day lasts on average 14 hours and 20 minutes. So the days are long. December 21, the summer solstice, is the longest day of the year in the Southern Hemisphere.
There are on average 10.5 hours of sunshine per day. So, the sun shines 74% of the time.
The average humidity is 45%.
The average wind speed is of
7.6 kph.