, with a cool, dry season from mid-May to mid-August and a hot, rainy season from November to March.
The city is located in southern Brazil, in the state of São Paulo, in the Paraíba valley, at almost 23 degrees south latitude and 550 meters (1,800 feet) above sea level.
From mid-May to mid-August is the winter of the southern hemisphere. During this period, there can sometimes be outbursts of cold air from the south, and the night temperature can drop to about 5 °C (41 °F) or even below.
From mid-August to October, in spring, the temperature rises and there can be very hot periods, however, sometimes cool, winter-like weather can return. The rains become more frequent, although they are not yet as frequent as in the summer.
The best time to visit Guaratinguetá is from mid-May to mid-August, being the coolest and driest of the year. It must be said that at night it can be a bit cold, so you can choose the month of April, when temperatures are higher, although the rains are more abundant. In September, temperatures are similar to those of April, but it is more likely to be very hot.
. Here are the average temperatures.
January is generally a warm to hot month. The average temperature is of
25.7 °C, with a minimum of
20.7 °C and a maximum of
30.6 °C.

On the coldest nights of the month, the temperature usually drops to around
18 °C.

On the warmest days of the month, the temperature usually reaches around
35.5 °C.

Precipitation amounts to
305 mm, distributed over 13 days.
The day lasts on average 13 hours and 20 minutes.
The average humidity is 67%.
The average wind speed is of
6.2 kph.
February, the hottest month of the year, is generally a warm to hot month. The average temperature is of
25.9 °C, with a minimum of
20.8 °C and a maximum of
31 °C.

On the coldest nights of the month, the temperature usually drops to around
18.5 °C.

On the warmest days of the month, the temperature usually reaches around
35 °C.

Precipitation amounts to
215 mm, distributed over 11 days.
The day lasts on average 12 hours and 50 minutes.
The average humidity is 67%.
The average wind speed is of
6 kph.
March is generally a warm to hot month. The average temperature is of
25 °C, with a minimum of
20.4 °C and a maximum of
29.7 °C.

On the coldest nights of the month, the temperature usually drops to around
16.5 °C.

On the warmest days of the month, the temperature usually reaches around
34 °C.

Precipitation amounts to
205 mm, distributed over 13 days.
The day lasts on average 12 hours and 10 minutes.
The average humidity is 69%.
The average wind speed is of
5.7 kph.
April is generally a warm to hot month. The average temperature is of
23.3 °C, with a minimum of
18.6 °C and a maximum of
28 °C.

On the coldest nights of the month, the temperature usually drops to around
14 °C.

On the warmest days of the month, the temperature usually reaches around
32.5 °C.

Precipitation amounts to
90 mm, distributed over 6 days.
The day lasts on average 11 hours and 30 minutes.
The average humidity is 68%.
The average wind speed is of
5.5 kph.
May is generally a warm month. The average temperature is of
20.6 °C, with a minimum of
15.6 °C and a maximum of
25.7 °C.

On the coldest nights of the month, the temperature usually drops to around
9.5 °C.

On the warmest days of the month, the temperature usually reaches around
30.5 °C.

Precipitation amounts to
60 mm, distributed over 4 days.
The day lasts on average 11 hours and 0 minutes.
The average humidity is 67%.
The average wind speed is of
5.3 kph.
June is generally a warm month. The average temperature is of
19.1 °C, with a minimum of
13.4 °C and a maximum of
24.8 °C.

On the coldest nights of the month, the temperature usually drops to around
7 °C.

On the warmest days of the month, the temperature usually reaches around
30 °C.

Precipitation amounts to
35 mm, distributed over 4 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.
The average humidity is 67%.
The average wind speed is of
5.3 kph.
July, the coldest month of the year, is generally a warm month. The average temperature is of
19 °C, with a minimum of
13 °C and a maximum of
25.1 °C.

On the coldest nights of the month, the temperature usually drops to around
6.5 °C.

On the warmest days of the month, the temperature usually reaches around
31 °C.

Precipitation amounts to
40 mm, distributed over 3 days.
The day lasts on average 10 hours and 55 minutes.
The average humidity is 63%.
The average wind speed is of
5.7 kph.
August is generally a warm month. The average temperature is of
20.2 °C, with a minimum of
13.9 °C and a maximum of
26.4 °C.

On the coldest nights of the month, the temperature usually drops to around
8 °C.

On the warmest days of the month, the temperature usually reaches around
33 °C.

Precipitation amounts to
40 mm, distributed over 3 days.
The day lasts on average 11 hours and 25 minutes.
The average humidity is 58%.
The average wind speed is of
7.2 kph.
September is generally a warm month. The average temperature is of
22.1 °C, with a minimum of
16.4 °C and a maximum of
27.8 °C.

On the coldest nights of the month, the temperature usually drops to around
11.5 °C.

On the warmest days of the month, the temperature usually reaches around
35 °C.

Precipitation amounts to
100 mm, distributed over 6 days.
The day lasts on average 12 hours and 0 minutes.
The average humidity is 59%.
The average wind speed is of
8.1 kph.
October is generally a warm to hot month. The average temperature is of
23.5 °C, with a minimum of
18.4 °C and a maximum of
28.6 °C.

On the coldest nights of the month, the temperature usually drops to around
13.5 °C.

On the warmest days of the month, the temperature usually reaches around
35.5 °C.

Precipitation amounts to
155 mm, distributed over 10 days.
The day lasts on average 12 hours and 40 minutes.
The average humidity is 63%.
The average wind speed is of
8.1 kph.
November is generally a warm to hot month. The average temperature is of
24 °C, with a minimum of
19.3 °C and a maximum of
28.7 °C.

On the coldest nights of the month, the temperature usually drops to around
15 °C.

On the warmest days of the month, the temperature usually reaches around
34.5 °C.

Precipitation amounts to
215 mm, distributed over 12 days.
The day lasts on average 13 hours and 10 minutes.
The average humidity is 65%.
The average wind speed is of
7.8 kph.
December is generally a warm to hot month. The average temperature is of
25.2 °C, with a minimum of
20.3 °C and a maximum of
30.1 °C.

On the coldest nights of the month, the temperature usually drops to around
16.5 °C.

On the warmest days of the month, the temperature usually reaches around
35 °C.

Precipitation amounts to
250 mm, distributed over 13 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.
The average humidity is 66%.
The average wind speed is of
6.8 kph.