Climate - Yacuiba (Bolivia)

The climate of Yacuiba is subtropical, with a hot, rainy period from November to March and a cool, dry period from May to mid-August.
The city is located in the extreme south of Bolivia, in the department of Tarija, at an altitude of 650 meters (2,130 feet). Beyond the border with Argentina lies the city of Profesor Salvador Mazza.
During the day it can get hot all year round, but especially from mid-August to March, when the temperature can reach 40 °C (104 °F).
From June to August, it is the winter of the southern hemisphere, and unlike in north-central Bolivia, temperatures drop by several degrees. In addition, all year round, cold air masses from the Argentine pampas can arrive here, bringing cool temperatures, and from April to September even cold, with maximums equal to or lower than 10 °C (50 °F). The cold records from June to August are below freezing. In July 2010, when it snowed in Buenos Aires, there was a day with rain and 4 °C (39 °F) as maximum temperature.
By mid-August, the temperature begins to rise again, and from September to November, before the rains, the highest values of the year can be recorded. In October 2014, the temperature reached 43.6 °C (110.5 °F).

Best Time

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The best time to visit Yacuiba is from mid-May to mid-August, being the coolest and driest of the year. It must be said that sometimes it can be a bit cold, so you can choose the period from mid-April to mid-May, when the temperatures are higher, even if the rains are more frequent.

Yacuiba - Climate data

In Yacuiba, the average temperature of the coldest month (July) is of 15.4 °C (59.6 °F), that of the warmest month (January) is of 25.8 °C (78.5 °F). Here are the average temperatures.
In Yacuiba, precipitation amounts to 840 millimeters (33.1 inches) per year: so, it is at an intermediate level. It ranges from 2 mm (0.1 in) in the driest month (July) to 165 mm (6.5 in) in the wettest one (March). Here is the average precipitation.
In Yacuiba, there are on average around 2595 sunshine hours per year. Here are the average hours of sunshine per day.

Yacuiba - Weather by month

Based on the period 1991-2020

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In January, the hottest month of the year, the weather in Yacuiba is usually warm to hot and muggy. The average temperature is of 25.8 °C (78 °F), with a minimum of 19.9 °C (67.8 °F) and a maximum of 31.8 °C (89.2 °F).
On the coldest nights of the month, the temperature usually drops to around 15.5 °C (60 °F). However, it dropped to 12.5 °C (54.5 °F) in January 2001.
On the warmest days of the month, the temperature usually reaches around 38 °C (101 °F). However, it reached 41.6 °C (106.9 °F) in January 2016.
Precipitation amounts to 135 mm (5.3 in), distributed over 7 days.
The day lasts on average 13 hours and 20 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 65% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is 8 kph (5 mph).

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In February, the weather in Yacuiba is usually warm to hot and muggy. The average temperature is of 24.9 °C (77 °F), with a minimum of 19.4 °C (67 °F) and a maximum of 30.5 °C (86.8 °F).
On the coldest nights of the month, the temperature usually drops to around 15 °C (59 °F). However, it dropped to 10 °C (50 °F) in February 2003.
On the warmest days of the month, the temperature usually reaches around 37 °C (99 °F). However, it reached 41.9 °C (107.4 °F) in February 2016.
Precipitation amounts to 140 mm (5.5 in), distributed over 8 days.
The day lasts on average 12 hours and 50 minutes.
There are on average 9.5 hours of sunshine per day. So, the sun shines 75% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is 8 kph (5 mph).

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In March, the weather in Yacuiba is usually warm to hot and muggy. The average temperature is of 23.7 °C (75 °F), with a minimum of 18.7 °C (65.6 °F) and a maximum of 28.8 °C (83.8 °F).
On the coldest nights, the temperature usually drops to around 13.5 °C (56.5 °F). However, it dropped to 9.7 °C (49.5 °F) in March 1998.
On the warmest days, the temperature usually reaches around 35 °C (95 °F). However, it reached 40 °C (104 °F) in March 2020.
Precipitation amounts to 165 mm (6.5 in), distributed over 9 days.
The day lasts on average 12 hours and 10 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 63% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is 7 kph (5 mph).

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In April, the weather in Yacuiba is usually warm. The average temperature is of 21.0 °C (70 °F), with a minimum of 16.1 °C (61 °F) and a maximum of 25.8 °C (78.5 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 9 °C (48.5 °F). However, it dropped to 3 °C (37.4 °F) in April 2016.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 33 °C (91.5 °F). However, it reached 37.8 °C (100 °F) in April 2016.
Precipitation amounts to 65 mm (2.6 in), distributed over 9 days.
The day lasts on average 11 hours and 30 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 63% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is 7 kph (5 mph).

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In May, the weather in Yacuiba is usually very mild. The average temperature is of 17.9 °C (64 °F), with a minimum of 13.1 °C (55.5 °F) and a maximum of 22.7 °C (72.8 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 5 °C (41 °F). However, it dropped to 1.5 °C (34.7 °F) in May 2007.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 30.5 °C (86.5 °F). However, it reached 38.5 °C (101.3 °F) in May 2013.
Precipitation amounts to 50 mm (2 in), distributed over 8 days.
The day lasts on average 11 hours and 0 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 55% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is 7 kph (4 mph).

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In June, the weather in Yacuiba is usually very mild. The average temperature is of 15.9 °C (61 °F), with a minimum of 10.4 °C (50.7 °F) and a maximum of 21.4 °C (70.6 °F).
On the coldest nights, the temperature usually drops to around 2 °C (35.5 °F). However, it dropped to -3.7 °C (25.3 °F) in June 1996.
On the warmest days, the temperature usually reaches around 30 °C (86 °F). However, it reached 34 °C (93.2 °F) in June 1993.
Precipitation amounts to only 5 mm (0.2 in), distributed over 6 days.
The day lasts on average 10 hours and 50 minutes. June 21, the winter solstice, is the shortest day of the year in the Southern Hemisphere.
There are on average 5.5 hours of sunshine per day. So, the sun shines 49% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is 7 kph (5 mph).

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In July, the coldest month of the year, the weather in Yacuiba is usually very mild. However, there are remarkable differences between night and day. The average temperature is of 15.4 °C (60 °F), with a minimum of 8.4 °C (47.2 °F) and a maximum of 22.3 °C (72.1 °F).
On the coldest nights of the month, the temperature usually drops to around 0 °C (31.5 °F). However, it dropped to -4.5 °C (23.9 °F) in July 1993.
On the warmest days of the month, the temperature usually reaches around 32 °C (89.5 °F). However, it reached 36.7 °C (98.1 °F) in July 1991.
Precipitation amounts to only 2 mm (0.1 in), distributed over 3 days.
The day lasts on average 10 hours and 55 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 49% of the time.
The average humidity is 69%.
The average wind speed is 9 kph (5 mph).

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In August, the weather in Yacuiba is usually warm. However, there are remarkable differences between night and day. The average temperature is of 18.2 °C (65 °F), with a minimum of 10.3 °C (50.6 °F) and a maximum of 26 °C (78.8 °F).
On the coldest nights of the month, the temperature usually drops to around 1 °C (33.5 °F). However, it dropped to -2.5 °C (27.5 °F) in August 1999.
On the warmest days of the month, the temperature usually reaches around 36.5 °C (98 °F). However, it reached 40.3 °C (104.5 °F) in August 1999.
Precipitation amounts to only 3 mm (0.1 in), and all occurs in one day.
The day lasts on average 11 hours and 25 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 49% of the time.
The average humidity is 58%.
The average wind speed is 11 kph (7 mph).

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In September, the weather in Yacuiba is usually warm. However, there are remarkable differences between night and day. The average temperature is of 21 °C (70 °F), with a minimum of 13.6 °C (56.5 °F) and a maximum of 28.4 °C (83.1 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 4.5 °C (40 °F). However, it dropped to 0 °C (32 °F) in September 2003.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 38.5 °C (101.5 °F). However, it reached 42 °C (107.6 °F) in September 1993.
Precipitation amounts to 11 mm (0.4 in), distributed over 2 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 56% of the time.
The average humidity is 56%.
The average wind speed is 12 kph (7 mph).

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In October, the weather in Yacuiba is usually warm to hot. However, there are remarkable differences between night and day. The average temperature is of 23.8 °C (75 °F), with a minimum of 17.1 °C (62.8 °F) and a maximum of 30.4 °C (86.8 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 9.5 °C (49 °F). However, it dropped to 5 °C (41 °F) in October 1995.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 40 °C (103.5 °F). However, it reached 43.6 °C (110.5 °F) in October 2014.
Precipitation amounts to 35 mm (1.4 in), distributed over 4 days.
The day lasts on average 12 hours and 35 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 56% of the time.
The average humidity is 61%.
The average wind speed is 12 kph (7 mph).

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In November, the weather in Yacuiba is usually warm to hot. The average temperature is of 24.6 °C (76 °F), with a minimum of 18.2 °C (64.7 °F) and a maximum of 31 °C (87.8 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 12 °C (54 °F). However, it dropped to 7 °C (44.6 °F) in November 1992.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 39.5 °C (102.5 °F). However, it reached 42 °C (107.6 °F) in November 2003.
Precipitation amounts to 90 mm (3.5 in), distributed over 6 days.
The day lasts on average 13 hours and 10 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 60% of the time.
The average humidity is 66%.
The average wind speed is 10 kph (6 mph).

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In December, the weather in Yacuiba is usually warm to hot and muggy. The average temperature is of 25.5 °C (78 °F), with a minimum of 19.6 °C (67.2 °F) and a maximum of 31.4 °C (88.6 °F).
On the coldest nights of the month, the temperature usually drops to around 14.5 °C (58 °F). However, it dropped to 12 °C (53.6 °F) in December 2010.
On the warmest days of the month, the temperature usually reaches around 38 °C (100.5 °F). However, it reached 41.2 °C (106.2 °F) in December 2010.
Precipitation amounts to 135 mm (5.3 in), distributed over 7 days.
The day lasts on average 13 hours and 30 minutes. December 21, the summer solstice, is the longest day of the year in the Southern Hemisphere.
There are on average 8.5 hours of sunshine per day. So, the sun shines 61% of the time.
The average humidity is 71%. Hence, the air is normally humid.
The average wind speed is 9 kph (5 mph).