(Köppen classification: humid subtropical climate - Cfa), with very mild winters (June to August) and hot summers (December to March). Rainfall is abundant and there is no dry season, however, winter is the relatively driest season, while in summer, rainfall often occurs in the form of thunderstorms. In fact, we are in the rainiest area of the country, where rainfall exceeds 1,500 mm (60 in) per year.
The city is located in the north-east of Uruguay, at almost 31 degrees south latitude and 200 meters (650 feet) above sea level, on the border with Brazil, beyond which lies the city of Santana do Livramento.
all year round, in fact the heat records are around 30 °C (86 °F) even in winter. Instead, from November to March, in summer, there can be heat waves, in which the temperature reaches 38/40 °C (100/104 °F). But the Pampero, 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.
It is difficult to find the best time to visit Rivera. Winter is a very mild and relatively dry season, but it can sometimes be cold, especially at night, and there can also be periods of bad weather.
Spring and autumn are pleasantly warm seasons, and therefore can be preferred (for example,
), however they are very rainy, and there can be sudden changes in temperature.
Summer is the sunniest season, but it is hot and muggy, and thunderstorms can break out.
. Here are the average temperatures.
January, the hottest month of the year, is generally a warm to hot month. The average temperature is of
25.1 °C, with a minimum of
18.8 °C and a maximum of
31.4 °C.

On the coldest nights of the month, the temperature usually drops to around
12.5 °C. However, it dropped to
9.7 °C in January 1991.

On the warmest days of the month, the temperature usually reaches around
37 °C. However, it reached
40 °C in January 2006.

Precipitation amounts to
135 mm, distributed over 8 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 66%.
The average wind speed is of
12.5 kph.
February is generally a warm to hot month. The average temperature is of
24.2 °C, with a minimum of
18.2 °C and a maximum of
30.1 °C.

On the coldest nights of the month, the temperature usually drops to around
12 °C. However, it dropped to
7 °C in February 1992.

On the warmest days of the month, the temperature usually reaches around
35 °C. However, it reached
37.9 °C in February 2012.

Precipitation amounts to
160 mm, distributed over 7 days.
The day lasts on average 13 hours and 5 minutes.

There are on average 8 hours of sunshine per day. So, the sun shines 59% of the time.
The average humidity is 69%.
The average wind speed is of
11.8 kph.
March is generally a warm to hot, muggy month. The average temperature is of
22.6 °C, with a minimum of
16.7 °C and a maximum of
28.6 °C.

On the coldest nights of the month, the temperature usually drops to around
10 °C. However, it dropped to
6.8 °C in March 2014.

On the warmest days of the month, the temperature usually reaches around
34 °C. However, it reached
39.8 °C in March 2006.

Precipitation amounts to
135 mm, distributed over 8 days.
The day lasts on average 12 hours and 10 minutes.

There are on average 7 hours of sunshine per day. So, the sun shines 59% of the time.
The average humidity is 70%. Hence, the air is normally humid.
The average wind speed is of
11.3 kph.
April is generally a warm month. The average temperature is of
19.5 °C, with a minimum of
13.7 °C and a maximum of
25.2 °C.

On the coldest nights of the month, the temperature usually drops to around
6 °C. However, it dropped to
0 °C in April 1996.

On the warmest days of the month, the temperature usually reaches around
32 °C. However, it reached
34.9 °C in April 2004.

Precipitation amounts to
180 mm, distributed over 7 days.
The day lasts on average 11 hours and 20 minutes.

There are on average 6 hours of sunshine per day. So, the sun shines 52% of the time.
The average humidity is 74%. Hence, the air is normally humid.
The average wind speed is of
10.9 kph.
May is generally a very mild month. The average temperature is of
15.8 °C, with a minimum of
10.6 °C and a maximum of
21 °C.

On the coldest nights of the month, the temperature usually drops to around
3 °C. However, it dropped to
-0.6 °C in May 2008.

On the warmest days of the month, the temperature usually reaches around
27.5 °C. However, it reached
31 °C in May 2009.

Precipitation amounts to
150 mm, distributed over 7 days.
The day lasts on average 10 hours and 30 minutes.

There are on average 5.5 hours of sunshine per day. So, the sun shines 51% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is of
10.6 kph.
June is generally a mild month. The average temperature is of
13.5 °C, with a minimum of
8.4 °C and a maximum of
18.6 °C.

On the coldest nights of the month, the temperature usually drops to around
0.5 °C. However, it dropped to
-2.7 °C in June 1996.

On the warmest days of the month, the temperature usually reaches around
26 °C. However, it reached
29 °C in June 2006.

Precipitation amounts to
110 mm, distributed over 8 days.
The day lasts on average 10 hours and 10 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 44% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is of
11.8 kph.
July, the coldest month of the year, is generally a mild month. The average temperature is of
12.9 °C, with a minimum of
7.5 °C and a maximum of
18.3 °C.

On the coldest nights of the month, the temperature usually drops to around
0 °C. However, it dropped to
-2.5 °C in July 2007.

On the warmest days of the month, the temperature usually reaches around
27.5 °C. However, it reached
29.8 °C in July 2005.

Precipitation amounts to
90 mm, distributed over 9 days.
The day lasts on average 10 hours and 25 minutes.

There are on average 5 hours of sunshine per day. So, the sun shines 49% of the time.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is of
12.5 kph.
August is generally a very mild month. The average temperature is of
14.7 °C, with a minimum of
8.8 °C and a maximum of
20.6 °C.

On the coldest nights of the month, the temperature usually drops to around
1.5 °C. However, it dropped to
-2 °C in August 1991.

On the warmest days of the month, the temperature usually reaches around
29.5 °C. However, it reached
33.6 °C in August 1993.

Precipitation amounts to
85 mm, distributed over 8 days.
The day lasts on average 11 hours and 5 minutes.

There are on average 5.5 hours of sunshine per day. So, the sun shines 51% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is of
12.6 kph.
September is generally a very mild month. The average temperature is of
16 °C, with a minimum of
10.3 °C and a maximum of
21.7 °C.

On the coldest nights of the month, the temperature usually drops to around
3 °C. However, it dropped to
0.4 °C in September 2006.

On the warmest days of the month, the temperature usually reaches around
31 °C. However, it reached
36.1 °C in September 1994.

Precipitation amounts to
130 mm, distributed over 8 days.
The day lasts on average 12 hours and 0 minutes.

There are on average 6 hours of sunshine per day. So, the sun shines 51% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is of
14.2 kph.
October is generally a warm month. The average temperature is of
19 °C, with a minimum of
13.2 °C and a maximum of
24.8 °C.

On the coldest nights of the month, the temperature usually drops to around
6.5 °C. However, it dropped to
2 °C in October 1999.

On the warmest days of the month, the temperature usually reaches around
32.5 °C. However, it reached
36.4 °C in October 1993.

Precipitation amounts to
150 mm, distributed over 8 days.
The day lasts on average 12 hours and 55 minutes.

There are on average 7 hours of sunshine per day. So, the sun shines 54% of the time.
The average humidity is 71%. Hence, the air is normally humid.
The average wind speed is of
14 kph.
November is generally a warm month. The average temperature is of
21.4 °C, with a minimum of
15 °C and a maximum of
27.8 °C.

On the coldest nights of the month, the temperature usually drops to around
8 °C. However, it dropped to
4.1 °C in November 1992.

On the warmest days of the month, the temperature usually reaches around
34.5 °C. However, it reached
37.2 °C in November 2011.

Precipitation amounts to
150 mm, distributed over 7 days.
The day lasts on average 13 hours and 40 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 of
13.6 kph.
December 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
17.4 °C and a maximum of
30.5 °C.

On the coldest nights of the month, the temperature usually drops to around
11 °C. However, it dropped to
7 °C in December 1991.

On the warmest days of the month, the temperature usually reaches around
36 °C. However, it reached
39.7 °C in December 1995.

Precipitation amounts to
125 mm, distributed over 6 days.
The day lasts on average 14 hours and 5 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 8.5 hours of sunshine per day. So, the sun shines 61% of the time.
The average humidity is 64%.
The average wind speed is of
12.8 kph.