Climate - Viedma (Argentina)

The climate of Viedma is subtropical semi-arid, with mild winters (during which it can get cold at night) and hot summers (but with generally cool nights). The wind blows frequently.
The city is located in central Argentina, in the province of Río Negro, at almost 41 degrees south latitude, about 25 km (15 mi) away from the coast, where the town of El Cóndor is located. Across the Río Negro ("Black River") is the town of Carmen de Patagones.
Even though it is located near the coast, the city is exposed both to outbreaks of cold air of Antarctic origin and to invasions of hot air of tropical origin, therefore it is subject to sudden changes in temperature.
The highest recorded temperature was 43.7 °C (110.7 °F) on February 18, 1987, while the lowest was -10.8 °C (12.6 °F) on July 4, 1988.
In summer, it can sometimes get cold at night, while in other circumstances there can be heat waves. In any case, the wind blows frequently even in this season, moreover, the sea is not warm.
In winter, snow is very rare, but at night the temperature can drop below freezing.

The average temperature of the coldest month (July) is of 7.3 °C (45.1 °F), that of the warmest month (January) is of 22.9 °C (73.2 °F). Here are the average temperatures.
Precipitation amounts to 375 millimeters (14.8 inches) per year: it is therefore quite scarce. It ranges from 20 mm (0.8 in) in the driest months (August, December) to 55 mm (2.2 in) in the wettest one (March). Here is the average precipitation.
The sea temperature ranges from 11 °C (11 °F) in August to 21 °C (21 °F) in February. Here are the average sea temperatures.
On average, there are around 2620 sunshine hours per year. Here are the average sunshine hours per day.

Viedma - 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 22.9 °C (73 °F), with a minimum of 14.8 °C (58.6 °F) and a maximum of 30.9 °C (87.7 °F).
On the coldest nights of the month, the temperature usually drops to around 6 °C (43 °F). However, in January 2013, it dropped to 2.9 °C (37.2 °F).
On the warmest days of the month, the temperature usually reaches around 38.5 °C (101.5 °F). However, in January 2012, it reached 42.7 °C (108.9 °F).
Precipitation amounts to 30 mm (1.2 in), distributed over 5 days.
On average, there are 290 hours of sunshine per month, i.e. 9.5 hours per day.
The average humidity is 47%.
The average wind speed is 22 kph (14 kph).
The average sea temperature is of 20 °C (68.5 °F).

In February, the average temperature is of 22.0 °C (72 °F), with a minimum of 14.2 °C (57.6 °F) and a maximum of 29.8 °C (85.6 °F).
On the coldest nights of the month, the temperature usually drops to around 6 °C (42.5 °F). However, in February 1998, it dropped to 2.4 °C (36.3 °F).
On the warmest days of the month, the temperature usually reaches around 37.5 °C (99.5 °F). However, in February 2013, it reached 40.5 °C (104.9 °F).
Precipitation amounts to 45 mm (1.8 in), distributed over 6 days.
On average, there are 255 hours of sunshine per month, i.e. 9 hours per day.
The average humidity is 52%.
The average wind speed is 21 kph (13 kph).
The average sea temperature is of 21 °C (70 °F).

In March, the average temperature is of 19.6 °C (67 °F), with a minimum of 12.2 °C (53.9 °F) and a maximum of 27.1 °C (80.8 °F).
On the coldest nights of the month, the temperature usually drops to around 3.5 °C (38 °F). However, in March 2001, it dropped to 0.5 °C (32.9 °F).
On the warmest days of the month, the temperature usually reaches around 35 °C (95 °F). However, in March 2020, it reached 38.6 °C (101.5 °F).
Precipitation amounts to 55 mm (2.2 in), distributed over 6 days.
On average, there are 275 hours of sunshine per month, i.e. 9 hours per day.
The average humidity is 58%.
The average wind speed is 19 kph (12 kph).
The average sea temperature is of 20.5 °C (69 °F).

In April, the average temperature is of 14.9 °C (59 °F), with a minimum of 7.7 °C (45.9 °F) and a maximum of 22.2 °C (71.9 °F).
On the coldest nights of the month, the temperature usually drops to around 0 °C (32 °F). However, in April 2010, it dropped to -3.1 °C (26.4 °F).
On the warmest days of the month, the temperature usually reaches around 29.5 °C (85.5 °F). However, in April 2018, it reached 34.2 °C (93.6 °F).
Precipitation amounts to 40 mm (1.6 in), distributed over 6 days.
On average, there are 200 hours of sunshine per month, i.e. 6.5 hours per day.
The average humidity is 62%.
The average wind speed is 17 kph (11 kph).
The average sea temperature is of 19 °C (66 °F).

In May, the average temperature is of 10.9 °C (52 °F), with a minimum of 4.5 °C (40 °F) and a maximum of 17.4 °C (63.4 °F).
On the coldest nights of the month, the temperature usually drops to around -2.5 °C (27.5 °F). However, in May 2009, it dropped to -4.9 °C (23.2 °F).
On the warmest days of the month, the temperature usually reaches around 24 °C (75.5 °F). However, in May 2010, it reached 29.9 °C (85.8 °F).
Precipitation amounts to 30 mm (1.2 in), distributed over 7 days.
On average, there are 150 hours of sunshine per month, i.e. 5 hours per day.
The average humidity is 71%.
The average wind speed is 16 kph (10 kph).
The average sea temperature is of 16.5 °C (61.5 °F).

In June, the average temperature is of 8.0 °C (46 °F), with a minimum of 1.9 °C (35.4 °F) and a maximum of 14.2 °C (57.5 °F).
On the coldest nights of the month, the temperature usually drops to around -4.5 °C (23.5 °F). However, in June 1991, it dropped to -7 °C (19.4 °F).
On the warmest days of the month, the temperature usually reaches around 19.5 °C (67 °F). However, in June 2013, it reached 23.9 °C (75 °F).
Precipitation amounts to 25 mm (1 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 71%.
The average wind speed is 18 kph (11 kph).
The average sea temperature is of 14 °C (57 °F).

In July, the coldest month of the year, the average temperature is of 7.3 °C (45 °F), with a minimum of 0.7 °C (33.3 °F) and a maximum of 13.8 °C (56.8 °F).
On the coldest nights of the month, the temperature usually drops to around -5.5 °C (22 °F). However, in July 1995, it dropped to -9.5 °C (14.9 °F).
On the warmest days of the month, the temperature usually reaches around 19.5 °C (67.5 °F). However, in July 2008, it reached 24.2 °C (75.6 °F).
Precipitation amounts to 25 mm (1 in), distributed over 7 days.
On average, there are 135 hours of sunshine per month, i.e. 4.5 hours per day.
The average humidity is 69%.
The average wind speed is 18 kph (11 kph).
The average sea temperature is of 12 °C (54 °F).

In August, the average temperature is of 9.1 °C (48 °F), with a minimum of 2 °C (35.6 °F) and a maximum of 16.2 °C (61.2 °F).
On the coldest nights of the month, the temperature usually drops to around -4.5 °C (23.5 °F). However, in August 1998, it dropped to -7 °C (19.4 °F).
On the warmest days of the month, the temperature usually reaches around 23.5 °C (74 °F). However, in August 2014, it reached 28 °C (82.4 °F).
Precipitation amounts to 20 mm (0.8 in), distributed over 6 days.
On average, there are 180 hours of sunshine per month, i.e. 6 hours per day.
The average humidity is 62%.
The average wind speed is 18 kph (11 kph).
The average sea temperature is of 11 °C (52 °F).

In September, the average temperature is of 11.3 °C (52 °F), with a minimum of 4 °C (39.2 °F) and a maximum of 18.7 °C (65.6 °F).
On the coldest nights of the month, the temperature usually drops to around -4 °C (25 °F). However, in September 2008, it dropped to -6.5 °C (20.3 °F).
On the warmest days of the month, the temperature usually reaches around 26.5 °C (79.5 °F). However, in September 1996, it reached 32.3 °C (90.1 °F).
Precipitation amounts to 25 mm (1 in), distributed over 6 days.
On average, there are 200 hours of sunshine per month, i.e. 6.5 hours per day.
The average humidity is 59%.
The average wind speed is 19 kph (12 kph).
The average sea temperature is of 11.5 °C (52.5 °F).

In October, the average temperature is of 14.9 °C (59 °F), with a minimum of 7.3 °C (45.1 °F) and a maximum of 22.5 °C (72.6 °F).
On the coldest nights of the month, the temperature usually drops to around -2 °C (28.5 °F). However, in October 1991, it dropped to -4.6 °C (23.7 °F).
On the warmest days of the month, the temperature usually reaches around 30.5 °C (87 °F). However, in October 1999, it reached 35.4 °C (95.7 °F).
Precipitation amounts to 30 mm (1.2 in), distributed over 6 days.
On average, there are 250 hours of sunshine per month, i.e. 8 hours per day.
The average humidity is 54%.
The average wind speed is 20 kph (12 kph).
The average sea temperature is of 13 °C (55 °F).

In November, the average temperature is of 18.4 °C (65 °F), with a minimum of 10.5 °C (50.9 °F) and a maximum of 26.3 °C (79.3 °F).
On the coldest nights of the month, the temperature usually drops to around 1.5 °C (35 °F). However, in November 1992, it dropped to -1.8 °C (28.8 °F).
On the warmest days of the month, the temperature usually reaches around 34.5 °C (94 °F). However, in November 1996, it reached 39.5 °C (103.1 °F).
Precipitation amounts to 25 mm (1 in), distributed over 5 days.
On average, there are 270 hours of sunshine per month, i.e. 9 hours per day.
The average humidity is 49%.
The average wind speed is 21 kph (13 kph).
The average sea temperature is of 15 °C (59.5 °F).

In December, the average temperature is of 21.2 °C (70 °F), with a minimum of 13.1 °C (55.5 °F) and a maximum of 29.4 °C (84.8 °F).
On the coldest nights of the month, the temperature usually drops to around 4 °C (39.5 °F). However, in December 1995, it dropped to 1.4 °C (34.5 °F).
On the warmest days of the month, the temperature usually reaches around 37 °C (98.5 °F). However, in December 1995, it reached 40.2 °C (104.4 °F).
Precipitation amounts to 20 mm (0.8 in), distributed over 5 days.
On average, there are 290 hours of sunshine per month, i.e. 9.5 hours per day.
The average humidity is 45%.
The average wind speed is 22 kph (14 kph).
The average sea temperature is of 18 °C (64.5 °F).