Climate - Santa Maria (Brazil)

The climate of Santa Maria is subtropical, with very mild winters (from June to August) and hot summers (from December to March). The rains are abundant and quite frequent all year round.
The city is located in the center of Rio Grande do Sul, the southernmost of the Brazilian states, at 29 degrees south latitude.
In winter, from June to August, there can be cold waves from the south, during which the temperature can drop to the freezing point or a little below at night, and can remain around 8/12 °C (46/54 °F) during the day. In July 1975 it dropped to -3 °C (26.5 °F).
In autumn and winter, fog can form at night and in the early morning.
In summer, on the other hand, there can be heat waves.

The average temperature of the coldest month (July) is of 14.1 °C (57.4 °F), that of the warmest month (January) is of 25.7 °C (78.2 °F). Here are the average temperatures.
Precipitation amounts to 1615 millimeters (63.6 inches) per year: it is therefore abundant. It ranges from 120 mm (4.7 in) in the driest months (April, November) to 165 mm (6.5 in) in the wettest one (January). Here is the average precipitation.
The sea temperature ranges from 20.5 °C (20.5 °F) in July, August to 26.5 °C (26.5 °F) in February, March. Here are the average sea temperatures.
On average, there are around 2165 sunshine hours per year. Here are the average sunshine hours per day.

Santa Maria - 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 25.7 °C (78 °F), with a minimum of 20.7 °C (69.2 °F) and a maximum of 30.7 °C (87.2 °F).
On the coldest nights of the month, the temperature usually drops to around 15.5 °C (60 °F). However, in January 2013, it dropped to 12 °C (53.6 °F).
On the warmest days of the month, the temperature usually reaches around 36.5 °C (97.5 °F). However, in January 2006, it reached 38.6 °C (101.5 °F).
Precipitation amounts to 165 mm (6.5 in), distributed over 9 days.
On average, there are 225 hours of sunshine per month, i.e. 7.5 hours per day.
The average humidity is 74%.
The average wind speed is 11 kph (7 kph).

In February, the average temperature is of 25.4 °C (78 °F), with a minimum of 20.4 °C (68.8 °F) and a maximum of 30.4 °C (86.6 °F).
On the coldest nights of the month, the temperature usually drops to around 14.5 °C (57.5 °F). However, in February 2020, it dropped to 10 °C (50 °F).
On the warmest days of the month, the temperature usually reaches around 36 °C (97 °F). However, in February 2012, it reached 40 °C (104 °F).
Precipitation amounts to 125 mm (4.9 in), distributed over 8 days.
On average, there are 195 hours of sunshine per month, i.e. 7 hours per day.
The average humidity is 76%.
The average wind speed is 10 kph (6 kph).

In March, the average temperature is of 23.5 °C (74 °F), with a minimum of 18.3 °C (65 °F) and a maximum of 28.6 °C (83.6 °F).
On the coldest nights of the month, the temperature usually drops to around 11 °C (51.5 °F). However, in March 2012, it dropped to 8 °C (46.4 °F).
On the warmest days of the month, the temperature usually reaches around 35.5 °C (96 °F). However, in March 2020, it reached 40 °C (104 °F).
Precipitation amounts to 135 mm (5.3 in), distributed over 8 days.
On average, there are 185 hours of sunshine per month, i.e. 6 hours per day.
The average humidity is 76%.
The average wind speed is 9 kph (6 kph).

In April, the average temperature is of 20.6 °C (69 °F), with a minimum of 15.3 °C (59.6 °F) and a maximum of 26 °C (78.7 °F).
On the coldest nights of the month, the temperature usually drops to around 8 °C (46.5 °F). However, in April 2008, it dropped to 4 °C (39.2 °F).
On the warmest days of the month, the temperature usually reaches around 33.5 °C (92 °F). However, in April 2012, it reached 37 °C (98.6 °F).
Precipitation amounts to 120 mm (4.7 in), distributed over 6 days.
On average, there are 170 hours of sunshine per month, i.e. 5.5 hours per day.
The average humidity is 77%.
The average wind speed is 8 kph (5 kph).

In May, the average temperature is of 17 °C (63 °F), with a minimum of 12.4 °C (54.4 °F) and a maximum of 21.6 °C (70.8 °F).
On the coldest nights of the month, the temperature usually drops to around 4 °C (39 °F). However, in May 2008, it dropped to 1 °C (33.8 °F).
On the warmest days of the month, the temperature usually reaches around 29.5 °C (85.5 °F). However, in May 1992, it reached 32.5 °C (90.5 °F).
Precipitation amounts to 130 mm (5.1 in), distributed over 8 days.
On average, there are 150 hours of sunshine per month, i.e. 5 hours per day.
The average humidity is 82%.
The average wind speed is 8 kph (5 kph).

In June, the average temperature is of 15.1 °C (59 °F), with a minimum of 10.6 °C (51 °F) and a maximum of 19.6 °C (67.3 °F).
On the coldest nights of the month, the temperature usually drops to around 0.5 °C (33 °F). However, in June 1996, it dropped to -2.5 °C (27.5 °F).
On the warmest days of the month, the temperature usually reaches around 28.5 °C (83.5 °F). However, in June 2001, it reached 33 °C (91.4 °F).
Precipitation amounts to 140 mm (5.5 in), distributed over 8 days.
On average, there are 125 hours of sunshine per month, i.e. 4 hours per day.
The average humidity is 82%.
The average wind speed is 9 kph (6 kph).

In July, the coldest month of the year, the average temperature is of 14.1 °C (57 °F), with a minimum of 9.4 °C (48.9 °F) and a maximum of 18.9 °C (65.9 °F).
On the coldest nights of the month, the temperature usually drops to around 0.5 °C (32.5 °F). However, in July 2009, it dropped to -2 °C (28.4 °F).
On the warmest days of the month, the temperature usually reaches around 29 °C (84 °F). However, in July 2001, it reached 33 °C (91.4 °F).
Precipitation amounts to 145 mm (5.7 in), distributed over 9 days.
On average, there are 135 hours of sunshine per month, i.e. 4.5 hours per day.
The average humidity is 80%.
The average wind speed is 10 kph (6 kph).

In August, the average temperature is of 16.7 °C (62 °F), with a minimum of 11.2 °C (52.2 °F) and a maximum of 22.1 °C (71.8 °F).
On the coldest nights of the month, the temperature usually drops to around 2 °C (36 °F). However, in August 1991, it dropped to -1 °C (30.2 °F).
On the warmest days of the month, the temperature usually reaches around 32.5 °C (90.5 °F). However, in August 2000, it reached 35 °C (95 °F).
Precipitation amounts to 140 mm (5.5 in), distributed over 9 days.
On average, there are 140 hours of sunshine per month, i.e. 4.5 hours per day.
The average humidity is 76%.
The average wind speed is 11 kph (7 kph).

In September, the average temperature is of 17.7 °C (64 °F), with a minimum of 12.7 °C (54.9 °F) and a maximum of 22.7 °C (72.9 °F).
On the coldest nights of the month, the temperature usually drops to around 4.5 °C (40 °F). However, in September 2006, it dropped to -1.4 °C (29.5 °F).
On the warmest days of the month, the temperature usually reaches around 33 °C (91 °F). However, in September 2011, it reached 37 °C (98.6 °F).
Precipitation amounts to 125 mm (4.9 in), distributed over 8 days.
On average, there are 160 hours of sunshine per month, i.e. 5.5 hours per day.
The average humidity is 77%.
The average wind speed is 11 kph (7 kph).

In October, the average temperature is of 20.4 °C (69 °F), with a minimum of 15.5 °C (59.9 °F) and a maximum of 25.4 °C (77.7 °F).
On the coldest nights of the month, the temperature usually drops to around 8 °C (46.5 °F). However, in October 2010, it dropped to 4 °C (39.2 °F).
On the warmest days of the month, the temperature usually reaches around 34.5 °C (93.5 °F). However, in October 2019, it reached 38 °C (100.4 °F).
Precipitation amounts to 130 mm (5.1 in), distributed over 8 days.
On average, there are 205 hours of sunshine per month, i.e. 6.5 hours per day.
The average humidity is 74%.
The average wind speed is 12 kph (7 kph).

In November, the average temperature is of 22.7 °C (73 °F), with a minimum of 16.9 °C (62.4 °F) and a maximum of 28.4 °C (83.2 °F).
On the coldest nights of the month, the temperature usually drops to around 10.5 °C (51 °F). However, in November 1999, it dropped to 7 °C (44.6 °F).
On the warmest days of the month, the temperature usually reaches around 36 °C (97 °F). However, in November 2010, it reached 40 °C (104 °F).
Precipitation amounts to 120 mm (4.7 in), distributed over 7 days.
On average, there are 225 hours of sunshine per month, i.e. 7.5 hours per day.
The average humidity is 67%.
The average wind speed is 12 kph (7 kph).

In December, the average temperature is of 25.0 °C (77 °F), with a minimum of 19.3 °C (66.7 °F) and a maximum of 30.8 °C (87.4 °F).
On the coldest nights of the month, the temperature usually drops to around 12.5 °C (55 °F). However, in December 2018, it dropped to 9 °C (48.2 °F).
On the warmest days of the month, the temperature usually reaches around 38 °C (100.5 °F). However, in December 1995, it reached 41.2 °C (106.2 °F).
Precipitation amounts to 140 mm (5.5 in), distributed over 8 days.
On average, there are 245 hours of sunshine per month, i.e. 8 hours per day.
The average humidity is 66%.
The average wind speed is 11 kph (7 kph).