, with a relatively cool and dry season from June to August, and a hot and rainy season from November to March.
The city is located in southern Brazil, in the state of São Paulo, at 21 degrees south latitude and 570 meters (1,870 feet) above sea level.
From June to August, the dry period, is the winter of the southern hemisphere, and in fact the temperature decreases, especially at night. During this period, there can sometimes be outbursts of cold air from the south, and the temperature can drop below 5 °C (41 °F) at night and below 20 °C (68 °F) during the day.
Instead, from mid-August the temperature begins to rise, and until November, before the wettest period, the highest values of the year can be reached. However, it can sometimes be very hot even in summer and autumn, from November to April.
The best time to visit Ribeirão Preto is from June to August, being the cool and dry season. At night it can get a little cold. May is a similar month, just a little rainier. In August, the likelihood of cold weather decreases, but the likelihood of encountering very hot days increases.
. Here are the average temperatures.
January is generally a warm to hot, muggy month. The average temperature is of
25.6 °C, with a minimum of
21.3 °C and a maximum of
29.8 °C.

On the coldest nights of the month, the temperature usually drops to around
19 °C. However, it dropped to
17 °C in January 2001.

On the warmest days of the month, the temperature usually reaches around
34 °C. However, it reached
35 °C in January 1998.

Precipitation amounts to
265 mm, distributed over 18 days.
The day lasts on average 13 hours and 10 minutes.
The average humidity is 80%. Hence, the air is normally humid.
The average wind speed is of
7.6 kph.
February is generally a warm to hot, muggy month. The average temperature is of
25.7 °C, with a minimum of
21.3 °C and a maximum of
30 °C.

On the coldest nights of the month, the temperature usually drops to around
19 °C. However, it dropped to
17 °C in February 2000.

On the warmest days of the month, the temperature usually reaches around
34.5 °C. However, it reached
36 °C in February 1998.

Precipitation amounts to
210 mm, distributed over 14 days.
The day lasts on average 12 hours and 50 minutes.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is of
6.8 kph.
March is generally a warm to hot, muggy month. The average temperature is of
25.3 °C, with a minimum of
20.6 °C and a maximum of
30 °C.

On the coldest nights of the month, the temperature usually drops to around
18 °C. However, it dropped to
16 °C in March 1997.

On the warmest days of the month, the temperature usually reaches around
34.5 °C. However, it reached
37 °C in March 1998.

Precipitation amounts to
160 mm, distributed over 14 days.
The day lasts on average 12 hours and 10 minutes.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is of
6.4 kph.
April is generally a warm to hot, muggy month. The average temperature is of
23.4 °C, with a minimum of
18 °C and a maximum of
28.7 °C.

On the coldest nights of the month, the temperature usually drops to around
13 °C. However, it dropped to
11 °C in April 1995.

On the warmest days of the month, the temperature usually reaches around
32.5 °C. However, it reached
35 °C in April 2007.

Precipitation amounts to
65 mm, distributed over 6 days.
The day lasts on average 11 hours and 35 minutes.
The average humidity is 74%. Hence, the air is normally humid.
The average wind speed is of
6.6 kph.
May is generally a warm month. The average temperature is of
20.6 °C, with a minimum of
15 °C and a maximum of
26.2 °C.

On the coldest nights of the month, the temperature usually drops to around
9.5 °C. However, it dropped to
7 °C in May 1999.

On the warmest days of the month, the temperature usually reaches around
30.5 °C. However, it reached
34 °C in May 2001.

Precipitation amounts to
60 mm, distributed over 5 days.
The day lasts on average 11 hours and 5 minutes.
The average humidity is 74%. Hence, the air is normally humid.
The average wind speed is of
6.5 kph.
June, the coldest month of the year, is generally a warm month. The average temperature is of
19.6 °C, with a minimum of
13.2 °C and a maximum of
26.1 °C.

On the coldest nights of the month, the temperature usually drops to around
7 °C. However, it dropped to
4 °C in June 2009.

On the warmest days of the month, the temperature usually reaches around
30 °C. However, it reached
32 °C in June 2001.

Precipitation amounts to
25 mm, distributed over 3 days.
The day lasts on average 10 hours and 55 minutes. June 21, the winter solstice, is the shortest day of the year in the Southern Hemisphere.
The average humidity is 70%. Hence, the air is normally humid.
The average wind speed is of
6.7 kph.
July is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of
20.5 °C, with a minimum of
13.3 °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
3 °C in July 2000.

On the warmest days of the month, the temperature usually reaches around
32 °C. However, it reached
34 °C in July 1998.

Precipitation amounts to
15 mm, distributed over 2 days.
The day lasts on average 11 hours and 0 minutes.
The average humidity is 62%.
The average wind speed is of
7.4 kph.
August is generally a warm to hot month. However, there are remarkable differences between night and day. The average temperature is of
22.7 °C, with a minimum of
15.1 °C and a maximum of
30.2 °C.

On the coldest nights of the month, the temperature usually drops to around
10.5 °C. However, it dropped to
6 °C in August 1999.

On the warmest days of the month, the temperature usually reaches around
35 °C. However, it reached
37 °C in August 2006.

Precipitation amounts to
15 mm, distributed over 3 days.
The day lasts on average 11 hours and 25 minutes.
The average humidity is 52%.
The average wind speed is of
8.5 kph.
September is generally a warm to hot month. However, there are remarkable differences between night and day. The average temperature is of
24.1 °C, with a minimum of
17.4 °C and a maximum of
30.7 °C.

On the coldest nights of the month, the temperature usually drops to around
12 °C. However, it dropped to
7 °C in September 2006.

On the warmest days of the month, the temperature usually reaches around
36.5 °C. However, it reached
38 °C in September 2006.

Precipitation amounts to
60 mm, distributed over 6 days.
The day lasts on average 12 hours and 0 minutes.
The average humidity is 58%.
The average wind speed is of
9.5 kph.
October is generally a warm to hot month. The average temperature is of
25.6 °C, with a minimum of
20 °C and a maximum of
31.2 °C.

On the coldest nights of the month, the temperature usually drops to around
16 °C. However, it dropped to
13 °C in October 1993.

On the warmest days of the month, the temperature usually reaches around
37 °C. However, it reached
39 °C in October 2008.

Precipitation amounts to
105 mm, distributed over 10 days.
The day lasts on average 12 hours and 35 minutes.
The average humidity is 64%.
The average wind speed is of
9.5 kph.
November is generally a warm to hot, muggy month. The average temperature is of
25.1 °C, with a minimum of
20.1 °C and a maximum of
30.1 °C.

On the coldest nights of the month, the temperature usually drops to around
16 °C. However, it dropped to
14 °C in November 1995.

On the warmest days of the month, the temperature usually reaches around
35 °C. However, it reached
36 °C in November 1994.

Precipitation amounts to
175 mm, distributed over 13 days.
The day lasts on average 13 hours and 5 minutes.
The average humidity is 70%. Hence, the air is normally humid.
The average wind speed is of
9.5 kph.
December is generally a warm to hot, muggy month. The average temperature is of
25.9 °C, with a minimum of
21.1 °C and a maximum of
30.7 °C.

On the coldest nights of the month, the temperature usually drops to around
17.5 °C. However, it dropped to
14 °C in December 2001.

On the warmest days of the month, the temperature usually reaches around
34.5 °C. However, it reached
36 °C in December 2007.

Precipitation amounts to
235 mm, distributed over 16 days.
The day lasts on average 13 hours and 25 minutes. December 21, the summer solstice, is the longest day of the year in the Southern Hemisphere.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is of
8.3 kph.