Climate zone: The northern part of Brazil is located in the equatorial tropics, the southern parts of the country belong geographically to the subtropics.
High humidity in Brazil and high temperatures are causing a pleasant weather at times, but also and partly tropical hot and humid. It is warm to hot all year round and invites to bathe at average water temperatures of 26 degrees. Dued to the lesser rain the best time for traveling is from July to September. Most precipitation decrease from January to April.
› Duration of daylight and sunshine in Brazil
hours of sunshine per day rainy days per month Precipitation in mm/day Relative humidity in % Water temperature Absolute humidity in g/m³ (approx.)
Temperature records of the last 70 years
The hottest temperature measured from 1949 to December 2019 was reported by the Palmas weather station. In October 2017 the record temperature of 43.0 °C was reported here. The hottest summer from July to September, based on all 163 weather stations in Brazil below 1160 metres altitude, was recorded in 2015 with an average temperature of 24.6 °C. This average temperature will normally be measured every 4 to 6 hours, thus also including the nights. Normally, this value is 23.3 degrees Celsius. The average maximum daily temperature at that time was 30.4 °C.
The coldest day in these 70 years was reported by the weather station Irati. Here the temperature dropped to -3.9 °C in July 2019. Irati lies at an altitude of 837 meters above sea level. The coldest winter (January to March) was in 1965 with an average temperature of 24.4 °C. In Brazil, it is usual to have about 1.1 degrees more at 25.5 °C for this three-month period.
Long-term development of temperatures from 1997 - 2019
In contrast to single record values, a long-term development cannot simply be brought about by all weather stations in the country. Both the number and the locations are constantly changing. A simply calculated average value would give a falsified result. If several measuring stations in particularly cold mountain or coastal regions are added in one year, the average would already decrease as a result of this alone. If a station fails during the summer or winter months, it does not provide any values and falsifies the average again. The subsequent long-term development was therefore reduced to only 3 measuring points in order to have actually comparable data over as long a period as possible.
In the years 1997 to 2019 there were only these 3 weather stations in the whole country, which reported continuous temperature values (Posse, Irati, St Vitoria Do Palmar). From these weather reports we have created a long-term development that shows the monthly average temperatures. The hottest month in this entire period was Februar 2016 with 24.2 °C. Juli 2007 was the coldest month with an average temperature of 14.8 °C.
The average annual temperature was about 19.4 °C in the years after 1997 and about 20.2 °C in the last years before 2019. So in less than 23 years it has increased by about 0.8 °C. This trend only applies to the selected 3 weather stations in Brazil. A considerably more comprehensive evaluation of the global warming
has been provided separately.
More detailed information on global warming with a view by continent can also be found on our topic page on climate change