Goiânia weather in May
In May, Goiânia has an average high of 26 °C80 °F and an average low of 15 °C59 °F, with about 24 mm0.9 in of precipitation. It is the 11th warmest month of the year and ranks 9th for precipitation.
How May compares with other months
Compared with April, May is 1.8 °C3.3 °F cooler on average and drier by 85 mm3.3 in. Compared with June, May is about the same temperature and wetter by 18 mm0.7 in. Daylight lasts about 11.3 hours around the middle of the month. Average relative humidity is 76% and the average cloud amount 37%.
Is May a good time to visit Goiânia?
Yes — May is one of the most comfortable months to visit Goiânia by our comfort score, which favours average highs of 21–28 °C, lows above 5 °C, little rain and moderate humidity.
What to wear in May
For Goiânia in May, pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
May in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Goiânia | 2680 | 1559 | 240.9 |
| Aparecida de Goiânia | 2679 | 1458 | 251.0 |
| Anápolis | 2577 | 1457 | 251.0 |
| Gama | 2678 | 1457 | 251.0 |
| Luziânia | 2680 | 1458 | 301.2 |
| Valparaíso de Goiás | 2678 | 1457 | 251.0 |
| Ceilândia | 2577 | 1356 | 251.0 |
| Brasília | 2577 | 1356 | 251.0 |
| Itumbiara | 2984 | 1762 | 301.2 |
Nearby places that are more than 1 °C1.8 °F warmer in May: Itumbiara; cooler: Anápolis, Gama, Valparaíso de Goiás and Ceilândia.
Other months in Goiânia
- January28 °C82 °F / 19 °C67 °F
- February28 °C82 °F / 19 °C67 °F
- March28 °C82 °F / 19 °C66 °F
- April27 °C81 °F / 18 °C64 °F
- May26 °C80 °F / 15 °C59 °F
- June27 °C80 °F / 14 °C57 °F
- July28 °C83 °F / 14 °C57 °F
- August32 °C89 °F / 16 °C61 °F
- September34 °C93 °F / 19 °C67 °F
- October33 °C91 °F / 20 °C68 °F
- November29 °C85 °F / 20 °C67 °F
- December28 °C83 °F / 20 °C67 °F
Frequently asked questions
How warm is Goiânia in May?
In May the average high in Goiânia is 26 °C (80 °F) and the average low is 15 °C (59 °F).
Does it rain a lot in Goiânia in May?
On average about 24 mm (0.9 in) of precipitation falls in May; it ranks 9th of the 12 months.
Is May the warmest month in Goiânia?
No. The warmest month in Goiânia is September, with an average high of 34 °C (93 °F). The coldest month is July, with an average low of 14 °C (57 °F).
How long is the day in Goiânia in May?
In the middle of May the day in Goiânia lasts about 11.3 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Goiânia in May?
The average relative humidity in May is about 76%. Combined with warm days, it can feel muggy.
How cloudy is Goiânia in May?
On average about 37% of the sky is covered by cloud in May. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.