Weather in Brasília in May

Prime time. If you get to pick your dates, May is the one. Highs average 25.8 °C, lows 13.9 °C, and rain falls on 5 days — nothing in the month is working against you.

May ranks 3 of 12 in Brasília. Only June scores clearly higher, and the difference is small enough to be settled by price rather than weather.

Rain falls on only 5 days, so an itinerary with no wet-weather fallback is a reasonable risk. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.

What the averages hide

The averages here are honest — no hidden extremes worth planning around. Across the twenty years measured, the hottest May day reached 31.9 °C and the coldest night fell to 6.6 °C, and the wettest single day dropped 26 mm — roughly 104% of the month's rain in one day.

May is moderately variable: 3 mm in the driest year against 62 mm in the wettest, around an average of 25 mm. Roughly two Mays in three land near that average, and the third does something else entirely.

Wind is light at 6.7 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 75%, high enough to notice on the warm days without dominating them.

How May sits in the year

Temperatures hold steady either side: 25.7 °C in April, 25.8 here, 26.3 in June. Nothing about the timing within the month matters much. Rain has already shifted: 11 days fewer than April had.

Daylight in May

Brasília sits close enough to the equator that daylight barely moves all year — 11.4 hours in May, against a range of just 1.9 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.

An inland climate

Despite being inland, the year stays fairly even: 19.3 °C between the year's warmest afternoons and coldest nights. At 1136 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

Busy. Popular without being frantic; book the things you care about, improvise the rest.

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

May in Brasília versus nearby

If Brasília is one option among several, the nearby comparison is worth making. Goiânia is close enough to be a coin toss — within a degree on temperature, 1 day less rain. Belo Horizonte is close enough to be a coin toss — within a degree on temperature, the same number of rain days.

So: May works, with June the better month by 7 points if the dates can move. If they cannot, nothing here should stop you booking.

Every month in Brasília

See all twelve months in Brasília, or where else to go in May.