(according to the Köppen classification: humid subtropical climate - Cfa), with mild, fairly dry winters (from June to August) and hot, rainy summers (from December to March). In summer, the rains often occur in the form of a thunderstorm.
The city is the capital of the Soriano department and is located in southwestern Uruguay, at 33 degrees south latitude, on the banks of the Río Negro, a tributary of the Uruguay River.
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 or exceeds 35 °C (95 °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.
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.
To visit Mercedes you can choose spring and autumn (in particular, the months of October and April), even though they are quite rainy seasons.
If you want you can also choose the summer, since the city is mitigated by the ocean, however, sometimes it can get very hot. Even in the height of summer, it is advisable to bring a sweatshirt for cooler evenings.
However, the winter is not a prohibitive season, and it rarely gets very cold.
. 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
25.1 °C, with a minimum of
18 °C and a maximum of
32.2 °C.
On the coldest nights of the month, the temperature usually drops to around
10.5 °C. However, it dropped to
6.5 °C in January 2005.
On the warmest days of the month, the temperature usually reaches around
38 °C. However, it reached
41.5 °C in January 2012.
Precipitation amounts to
105 mm, distributed over 5 days.
The day lasts on average 14 hours and 0 minutes.
There are on average 9.5 hours of sunshine per day. So, the sun shines 66% of the time.
The average humidity is 62%.
The average wind speed is of
11.4 kph.
February is generally a warm to hot month. However, there are remarkable differences between night and day. The average temperature is of
23.9 °C, with a minimum of
17.3 °C and a maximum of
30.4 °C.
On the coldest nights of the month, the temperature usually drops to around
9 °C. However, it dropped to
6 °C in February 2019.
On the warmest days of the month, the temperature usually reaches around
36 °C. However, it reached
40 °C in February 2003.
Precipitation amounts to
130 mm, 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 62% of the time.
The average humidity is 68%.
The average wind speed is of
10.9 kph.
March is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of
22 °C, with a minimum of
15.2 °C and a maximum of
28.8 °C.
On the coldest nights of the month, the temperature usually drops to around
7 °C. However, it dropped to
3.6 °C in March 2018.
On the warmest days of the month, the temperature usually reaches around
34 °C. However, it reached
36.6 °C in March 2018.
Precipitation amounts to
140 mm, distributed over 6 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 62% of the time.
The average humidity is 69%.
The average wind speed is of
10.3 kph.
April 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
12 °C and a maximum of
25.1 °C.
On the coldest nights of the month, the temperature usually drops to around
3 °C. However, it dropped to
0.5 °C in April 2012.
On the warmest days of the month, the temperature usually reaches around
31.5 °C. However, it reached
37.2 °C in April 2018.
Precipitation amounts to
115 mm, distributed over 5 days.
The day lasts on average 11 hours and 10 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 54% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is of
10.2 kph.
May is generally a very mild month. The average temperature is of
14.8 °C, with a minimum of
8.9 °C and a maximum of
20.8 °C.
On the coldest nights of the month, the temperature usually drops to around
0 °C. However, it dropped to
-3.8 °C in May 2006.
On the warmest days of the month, the temperature usually reaches around
27 °C. However, it reached
30.9 °C in May 1997.
Precipitation amounts to
80 mm, distributed over 5 days.
The day lasts on average 10 hours and 25 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 53% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is of
9.4 kph.
June is generally a mild month. The average temperature is of
12 °C, with a minimum of
6 °C and a maximum of
18 °C.
On the coldest nights of the month, the temperature usually drops to around
-2.5 °C. However, it dropped to
-8.2 °C in June 2015.
On the warmest days of the month, the temperature usually reaches around
25 °C. However, it reached
30.2 °C in June 2015.
Precipitation amounts to
70 mm, distributed over 5 days.
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 4.5 hours of sunshine per day. So, the sun shines 45% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is of
10.4 kph.
July, the coldest month of the year, is generally a mild month. The average temperature is of
11.1 °C, with a minimum of
5 °C and a maximum of
17.3 °C.
On the coldest nights of the month, the temperature usually drops to around
-4 °C. However, it dropped to
-7.6 °C in July 2007.
On the warmest days of the month, the temperature usually reaches around
26 °C. However, it reached
29.5 °C in July 2005.
Precipitation amounts to
60 mm, distributed over 5 days.
The day lasts on average 10 hours and 10 minutes.
There are on average 5 hours of sunshine per day. So, the sun shines 50% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is of
11.2 kph.
August is generally a mild month. However, there are remarkable differences between night and day. The average temperature is of
13.2 °C, with a minimum of
6.4 °C and a maximum of
20 °C.
On the coldest nights of the month, the temperature usually drops to around
-2.5 °C. However, it dropped to
-4.9 °C in August 2013.
On the warmest days of the month, the temperature usually reaches around
29 °C. However, it reached
33.3 °C in August 1996.
Precipitation amounts to
65 mm, distributed over 5 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 54% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is of
11.5 kph.
September is generally a very mild month. However, there are remarkable differences between night and day. The average temperature is of
14.9 °C, with a minimum of
8.2 °C and a maximum of
21.5 °C.
On the coldest nights of the month, the temperature usually drops to around
0 °C. However, it dropped to
-3.5 °C in September 2019.
On the warmest days of the month, the temperature usually reaches around
29.5 °C. However, it reached
36.1 °C in September 2013.
Precipitation amounts to
75 mm, distributed over 5 days.
The day lasts on average 11 hours and 55 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 56% of the time.
The average humidity is 70%.
The average wind speed is of
13.2 kph.
October is generally a very mild month. However, there are remarkable differences between night and day. The average temperature is of
17.9 °C, with a minimum of
11.4 °C and a maximum of
24.5 °C.
On the coldest nights of the month, the temperature usually drops to around
3 °C. However, it dropped to
-2.8 °C in October 1999.
On the warmest days of the month, the temperature usually reaches around
31.5 °C. However, it reached
36 °C in October 2014.
Precipitation amounts to
120 mm, distributed over 6 days.
The day lasts on average 13 hours and 0 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 57% of the time.
The average humidity is 70%.
The average wind speed is of
13.2 kph.
November is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of
20.9 °C, with a minimum of
13.6 °C and a maximum of
28.2 °C.
On the coldest nights of the month, the temperature usually drops to around
6.5 °C. However, it dropped to
0.9 °C in November 1992.
On the warmest days of the month, the temperature usually reaches around
35 °C. However, it reached
39.3 °C in November 2020.
Precipitation amounts to
115 mm, distributed over 6 days.
The day lasts on average 13 hours and 55 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 62% of the time.
The average humidity is 62%.
The average wind speed is of
12.9 kph.
December is generally a warm to hot month. However, there are remarkable differences between night and day. The average temperature is of
23.6 °C, with a minimum of
16.3 °C and a maximum of
31 °C.
On the coldest nights of the month, the temperature usually drops to around
8.5 °C. However, it dropped to
2.9 °C in December 2011.
On the warmest days of the month, the temperature usually reaches around
36.5 °C. However, it reached
41.7 °C in December 2013.
Precipitation amounts to
115 mm, distributed over 5 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 9 hours of sunshine per day. So, the sun shines 61% of the time.
The average humidity is 59%.
The average wind speed is of
12.1 kph.