Piauí is one of several regions in Brazil, with temperatures that range from 32°C (90°F) in March to 38°C (100°F) during the peak of October. We've based our full climate overview on data from Teresina, the region's most prominent city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.
In Piauí, especially in Teresina, temperatures remain consistently high year-round, with average maximums never dropping below 32°C (90°F).
The hottest season always takes place in September, October and November.
Precipitation in Piauí varies considerably throughout the year. The wettest conditions occur in March with 324 mm (13 in) of rain, while August stays relatively dry with 2 mm (0.1 in). The region experiences its rainy season during January, February, March and April, when monthly rainfall can range from 237 mm (9.3 in) to 324 mm (13 in). The driest conditions can be found during June, July, August, September and October, with rainfall staying below 17 mm (0.7 in).
August is the sunniest period, with ideal conditions for exploring the region and all it has to offer.
