Climate - Treinta Y Tres (Uruguay)

The climate of Treinta Y Tres is subtropical, with mild winters (from June to August) and hot summers (from December to March). The rains are well distributed throughout the year.
The city is located in the east of Uruguay, at 33 degrees south latitude, on the banks of the Olimar Grande River, 80 km (50 mi) from the border with Brazil and 110 km (68 mi) from the Atlantic Ocean coast.
During the day it can get hot all year round, in fact the heat records are around 30 °C (86 °F) even in winter. Instead, from December to March, in summer, there can be heat waves, in which the temperature reaches 38/39 °C (100/102 °F). However, the south wind is able to interrupt the hot and sultry periods, bringing pleasant (and sometimes very cool) weather for two or three days.
In winter, 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 10 °C (50 °F) during the day. Also, fog can sometimes form.

The average temperature of the coldest month (July) is of 11.4 °C (52.6 °F), that of the warmest month (January) is of 24.3 °C (75.7 °F). Here are the average temperatures.
Precipitation amounts to 1410 millimeters (55.5 inches) per year: it is therefore quite abundant. It ranges from 105 mm (4.1 in) in the driest months (January, September) to 135 mm (5.3 in) in the wettest ones (April, May) Here is the average precipitation.
On average, there are around 2385 sunshine hours per year. Here are the average sunshine hours per day.

Treinta Y Tres - Weather by month

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

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In January, the warmest month of the year, the average temperature in Treinta Y Tres is of 24.3 °C (76 °F), with a minimum of 17.9 °C (64.2 °F) and a maximum of 30.6 °C (87.2 °F).
On the coldest nights of the month, the temperature usually drops to around 10 °C (50 °F). However, in January 1992, it dropped to 7.4 °C (45.3 °F).
On the warmest days of the month, the temperature usually reaches around 36 °C (97 °F). However, in January 2006, it reached 39 °C (102.2 °F).
Precipitation amounts to 105 mm (4.1 in), distributed over 6 days.
On average, there are 265 hours of sunshine per month, i.e. 8.5 hours per day.
The average humidity is 68%.
The average wind speed is 9 kph (5 kph).

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In February, the average temperature in Treinta Y Tres is of 23.4 °C (74 °F), with a minimum of 17.5 °C (63.4 °F) and a maximum of 29.4 °C (84.8 °F).
On the coldest nights of the month, the temperature usually drops to around 9.5 °C (48.5 °F). However, in February 2001, it dropped to 7.4 °C (45.3 °F).
On the warmest days of the month, the temperature usually reaches around 35.5 °C (95.5 °F). However, in February 1991, it reached 38.1 °C (100.6 °F).
Precipitation amounts to 130 mm (5.1 in), distributed over 7 days.
On average, there are 215 hours of sunshine per month, i.e. 7.5 hours per day.
The average humidity is 71%.
The average wind speed is 8 kph (5 kph).

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In March, the average temperature in Treinta Y Tres is of 22.2 °C (72 °F), with a minimum of 16.3 °C (61.4 °F) and a maximum of 28.1 °C (82.6 °F).
On the coldest nights of the month, the temperature usually drops to around 8.5 °C (47.5 °F). However, in March 1995, it dropped to 4.7 °C (40.5 °F).
On the warmest days of the month, the temperature usually reaches around 33.5 °C (92.5 °F). However, in March 2005, it reached 39 °C (102.2 °F).
Precipitation amounts to 110 mm (4.3 in), distributed over 5 days.
On average, there are 220 hours of sunshine per month, i.e. 7 hours per day.
The average humidity is 74%.
The average wind speed is 7 kph (4 kph).

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In April, the average temperature in Treinta Y Tres is of 18.7 °C (66 °F), with a minimum of 13.1 °C (55.6 °F) and a maximum of 24.2 °C (75.6 °F).
On the coldest nights of the month, the temperature usually drops to around 5 °C (41 °F). However, in April 1994, it dropped to 3 °C (37.4 °F).
On the warmest days of the month, the temperature usually reaches around 31 °C (87.5 °F). However, in April 2004, it reached 35.9 °C (96.6 °F).
Precipitation amounts to 135 mm (5.3 in), distributed over 5 days.
On average, there are 185 hours of sunshine per month, i.e. 6 hours per day.
The average humidity is 77%.
The average wind speed is 8 kph (5 kph).

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In May, the average temperature in Treinta Y Tres is of 15.0 °C (59 °F), with a minimum of 9.6 °C (49.4 °F) and a maximum of 20.3 °C (68.5 °F).
On the coldest nights of the month, the temperature usually drops to around 2 °C (36 °F). However, in May 1997, it dropped to -0.4 °C (31.3 °F).
On the warmest days of the month, the temperature usually reaches around 27 °C (80.5 °F). However, in May 1999, it reached 30.8 °C (87.4 °F).
Precipitation amounts to 135 mm (5.3 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 81%.
The average wind speed is 6 kph (4 kph).

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In June, the average temperature in Treinta Y Tres is of 12.7 °C (55 °F), with a minimum of 7.7 °C (45.9 °F) and a maximum of 17.7 °C (63.8 °F).
On the coldest nights of the month, the temperature usually drops to around -0.5 °C (31 °F). However, in June 2002, it dropped to -6 °C (21.2 °F).
On the warmest days of the month, the temperature usually reaches around 24.5 °C (76 °F). However, in June 2004, it reached 28.2 °C (82.8 °F).
Precipitation amounts to 130 mm (5.1 in), distributed over 6 days.
On average, there are 130 hours of sunshine per month, i.e. 4.5 hours per day.
The average humidity is 83%.
The average wind speed is 7 kph (4 kph).

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In July, the coldest month of the year, the average temperature in Treinta Y Tres is of 11.4 °C (53 °F), with a minimum of 6 °C (42.9 °F) and a maximum of 16.9 °C (62.3 °F).
On the coldest nights of the month, the temperature usually drops to around -1.5 °C (29.5 °F). However, in July 1993, it dropped to -3 °C (26.6 °F).
On the warmest days of the month, the temperature usually reaches around 26 °C (79 °F). However, in July 2005, it reached 30.2 °C (86.4 °F).
Precipitation amounts to 120 mm (4.7 in), distributed over 6 days.
On average, there are 145 hours of sunshine per month, i.e. 4.5 hours per day.
The average humidity is 81%.
The average wind speed is 7 kph (5 kph).

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In August, the average temperature in Treinta Y Tres is of 13.6 °C (57 °F), with a minimum of 7.8 °C (46.1 °F) and a maximum of 19.4 °C (67 °F).
On the coldest nights of the month, the temperature usually drops to around 0 °C (32 °F). However, in August 1992, it dropped to -2.4 °C (27.7 °F).
On the warmest days of the month, the temperature usually reaches around 28.5 °C (83 °F). However, in August 2002, it reached 34.7 °C (94.5 °F).
Precipitation amounts to 115 mm (4.5 in), distributed over 7 days.
On average, there are 165 hours of sunshine per month, i.e. 5.5 hours per day.
The average humidity is 78%.
The average wind speed is 8 kph (5 kph).

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In September, the average temperature in Treinta Y Tres is of 14.8 °C (59 °F), with a minimum of 9.1 °C (48.4 °F) and a maximum of 20.5 °C (68.9 °F).
On the coldest nights of the month, the temperature usually drops to around 1.5 °C (34.5 °F). However, in September 2003, it dropped to -1 °C (30.2 °F).
On the warmest days of the month, the temperature usually reaches around 29 °C (84.5 °F). However, in September 1994, it reached 37.6 °C (99.7 °F).
Precipitation amounts to 105 mm (4.1 in), distributed over 7 days.
On average, there are 175 hours of sunshine per month, i.e. 6 hours per day.
The average humidity is 75%.
The average wind speed is 9 kph (6 kph).

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In October, the average temperature in Treinta Y Tres is of 17.9 °C (64 °F), with a minimum of 12.2 °C (53.9 °F) and a maximum of 23.5 °C (74.4 °F).
On the coldest nights of the month, the temperature usually drops to around 4 °C (39 °F). However, in October 1999, it dropped to 0.2 °C (32.4 °F).
On the warmest days of the month, the temperature usually reaches around 31 °C (88 °F). However, in October 1993, it reached 34.1 °C (93.4 °F).
Precipitation amounts to 110 mm (4.3 in), distributed over 6 days.
On average, there are 210 hours of sunshine per month, i.e. 7 hours per day.
The average humidity is 74%.
The average wind speed is 9 kph (6 kph).

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In November, the average temperature in Treinta Y Tres is of 19.8 °C (68 °F), with a minimum of 13.6 °C (56.4 °F) and a maximum of 26 °C (78.9 °F).
On the coldest nights of the month, the temperature usually drops to around 6 °C (42.5 °F). However, in November 2003, it dropped to 2.2 °C (36 °F).
On the warmest days of the month, the temperature usually reaches around 33 °C (91.5 °F). However, in November 1996, it reached 35.8 °C (96.4 °F).
Precipitation amounts to 110 mm (4.3 in), distributed over 6 days.
On average, there are 240 hours of sunshine per month, i.e. 8 hours per day.
The average humidity is 69%.
The average wind speed is 10 kph (6 kph).

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In December, the average temperature in Treinta Y Tres is of 22.7 °C (73 °F), with a minimum of 16.2 °C (61.2 °F) and a maximum of 29.1 °C (84.4 °F).
On the coldest nights of the month, the temperature usually drops to around 8.5 °C (47.5 °F). However, in December 1995, it dropped to 5.2 °C (41.4 °F).
On the warmest days of the month, the temperature usually reaches around 35 °C (95.5 °F). However, in December 1995, it reached 40.7 °C (105.3 °F).
Precipitation amounts to 110 mm (4.3 in), distributed over 5 days.
On average, there are 265 hours of sunshine per month, i.e. 8.5 hours per day.
The average humidity is 66%.
The average wind speed is 9 kph (6 kph).