Weather in Goiânia in October

A hard month. October asks something of you. Go in knowing what. You should expect rain on 17 days of the month, which is more days wet than dry.

October ranks 12 of 12 — near the bottom of Goiânia's year. June is the month that works, and the swing between the two is 56 points, which is a different holiday rather than a slightly better one.

Rain on 17 days, 4 of them heavy. Enough to need a plan B, not enough to need a plan around it. Pack for 33 °C days and 20.7 °C nights; the spread matters more here than any single number.

What the averages hide

Averages flatten a month, and this one hides a few things: 10 days clear 35 °C, so a serious heatwave is normal rather than notable. Across the twenty years measured, the hottest October day reached 41.8 °C and the coldest night fell to 13.9 °C, and the wettest single day dropped 39 mm — roughly 32% of the month's rain in one day.

October is moderately variable: 56 mm in the driest year against 257 mm in the wettest, around an average of 122 mm. Roughly two Octobers in three land near that average, and the third does something else entirely.

Wind is light at 7.3 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 59%.

How October sits in the year

Temperatures hold steady either side: 34.4 °C in September, 33 here, 29.6 in November. Nothing about the timing within the month matters much. Rain is the thing that moves: November brings 7 days more of it, so the earlier half of a flexible trip is the safer half.

Daylight in October

12.4 hours of daylight, gaining 0.5 hours across the month. That is between Goiânia's extremes of 13.1 and 11.1 hours, so days are long enough not to constrain the plan.

An inland climate

Despite being inland, the year stays fairly even: 19.8 °C between the year's warmest afternoons and coldest nights. At 766 m the air is thin enough to matter — sun that burns faster than the temperature suggests, and nights that cool off quickly.

How busy it gets

Off season. The genuine off season: cheapest by a distance, with the caveat that some tours and restaurants close entirely.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

October in Goiânia versus nearby

If Goiânia is one option among several, the nearby comparison is worth making. Brasília is a better bet in October — 2.1 °C cooler, the same number of rain days. Belo Horizonte is a better bet in October — 2.6 °C cooler, 4 days less rain.

So: October is a compromise. June is 56 points better and is what Goiânia is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Goiânia

See all twelve months in Goiânia, or where else to go in October.