Cuiaba Hot Days Per Month

Hot weather in Cuiabá by month

Cuiabá, the capital of Mato Grosso, usually shows up on any list of Brazil's hottest cities. Pick a month and this tool gives you the typical mean maximum temperature for it, drawn from the INMET climatological normals 1991–2020. The simplified model returns Tmax_avg(month) in °C. You'll see it climb to ~38–42°C during the September–October stretch when the dry season is giving way to the wet one, then settle back to a gentler ~30–32°C in the cool, dry June–July window.

The city has a tropical savanna climate (Aw under Köppen): a sharply defined dry season from April to September and a rainy one from October to March. Low altitude (~165 m), a position deep inland, and clear skies late in the winter all stack up to push heat spikes past 43°C now and then.

Applications

Handy when you're scheduling outdoor events, gauging heat-stress risk for people who work on the street, fitting school PE into cooler hours, planning a trip, or working out when athletes should arrive to acclimatize. Civil-defense agencies lean on monthly climatologies too, sizing hydration campaigns and figuring out how many shaded transit shelters they need.

FAQ

Which month is hottest? September and October. They tend to post the highest mean Tmax (33–36°C) and the most extreme absolute peaks, since the parched ground bakes hard before the rains finally show up.

Is the value a record or an average? It's the mean monthly maximum from the 1991–2020 normals, not a single-day record. On a hot day the actual high can run 5–8°C above it.

Does humidity matter? It does. From October through March the air holds more moisture, so the heat index feels hotter than the thermometer suggests, even when Tmax lands near its dry-season figures.