Jataí climate

Goiás, Brazil · 17.88°S, 51.72°W · elevation 741 m · population 105,729

Warmest month
October
high 32 °C89 °F
Coldest month
June
low 13 °C56 °F
Wettest month
December
226 mm8.9 in
Best time to visit
May–August
by our comfort score
Annual precipitation
1,398 mm55 in
July driest
Year average
23 °C73 °F
tropical savanna (dry winter) (Aw)

Jataí (Goiás, Brazil) has a tropical savanna (dry winter) climate (Köppen Aw). The average temperature over the year is 23 °C73 °F, and about 1,398 mm55 in of precipitation falls in an average year.

Temperature by month

Average highAverage low
10°15°20°25°30°35°50°60°70°80°90°JFMAMJJASOND33°91°13°55°January: high 28 °C / 82 °F, low 20 °C / 67 °FFebruary: high 28 °C / 82 °F, low 19 °C / 67 °FMarch: high 28 °C / 82 °F, low 19 °C / 66 °FApril: high 27 °C / 81 °F, low 18 °C / 64 °FMay: high 26 °C / 79 °F, low 14 °C / 58 °FJune: high 26 °C / 79 °F, low 13 °C / 56 °FJuly: high 27 °C / 81 °F, low 13 °C / 55 °FAugust: high 30 °C / 86 °F, low 14 °C / 58 °FSeptember: high 33 °C / 91 °F, low 18 °C / 64 °FOctober: high 32 °C / 89 °F, low 20 °C / 67 °FNovember: high 29 °C / 85 °F, low 19 °C / 67 °FDecember: high 28 °C / 83 °F, low 20 °C / 67 °F

Precipitation by month

Precipitation per month (mminches)
05010015020025002468JJanuary: 221 mm / 8.7 inFFebruary: 215 mm / 8.4 inMMarch: 211 mm / 8.3 inAApril: 89 mm / 3.5 inMMay: 40 mm / 1.6 inJJune: 12 mm / 0.5 inJJuly: 10 mm / 0.4 inAAugust: 13 mm / 0.5 inSSeptember: 43 mm / 1.7 inOOctober: 121 mm / 4.8 inNNovember: 197 mm / 7.7 inDDecember: 226 mm / 8.9 in2268.9

Jataí climate table

Monthly averages, 2001–2025
MonthHigh °C°FLow °C°FMean °C°FPrecip. mmin
Jan2882206724752218.7
Feb2882196724752158.4
Mar2882196623742118.3
Apr278118642373893.5
May267914582068401.6
Jun267913562067120.5
Jul278113552068100.4
Aug308614582272130.5
Sep339118642577431.7
Oct3289206726781214.8
Nov2985196724761977.7
Dec2883206724752268.9
Year3391135523731,39855

“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.

Humidity, cloud, sun and daylight
MonthHumid.CloudSolarDaylight
Jan82%80%5.713:05
Feb82%79%5.612:42
Mar83%72%5.512:14
Apr81%54%5.211:43
May77%41%4.811:17
Jun72%28%4.511:04
Jul63%23%4.811:09
Aug53%27%5.511:31
Sep52%47%5.612:01
Oct65%73%5.512:32
Nov76%79%5.712:59
Dec81%81%5.813:12

Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.

What the climate of Jataí is like

The warmest month is October, with an average high of 32 °C89 °F and a low of 20 °C67 °F. The coldest is June, when highs average 26 °C79 °F and lows 13 °C56 °F. Seasonal differences are small — just 6 °C10.7 °F between the warmest and the coolest month.

It is wet, with about 1,398 mm55 in of precipitation per year. The wettest three-month stretch is December–February, which brings 47% of the annual total. Months with less than 20 mm0.8 in on average: June–August. The wettest month is December (226 mm8.9 in), the driest is July (10 mm0.4 in).

Relative humidity ranges from 52% in September to 83% in March. The clearest skies (lowest average cloud amount, 23%) are typical of July. Average wind speed near the ground ranges from 5 km/h (3 mph) in April to 8 km/h (5 mph) in September. Daylight lasts from about 11.1 hours in June to 13.2 hours in December.

Best time to visit Jataí

Based on these averages, the most comfortable months for sightseeing and outdoor activities are May–August: average highs of 26 °C79 °F to 30 °C86 °F with 10 mm0.4 in to 40 mm1.6 in of precipitation per month.

The most challenging month is December, which is very wet (226 mm8.9 in) and humid (81% relative humidity).

Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.

What to pack for Jataí

  • Wetter months (October–March) — highs 2882 to 32 °C89 °F, lows 1966 to 20 °C67 °F, about 198 mm7.8 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an umbrella or light rain jacket.
  • Drier months (April–September) — highs 2679 to 33 °C91 °F, lows 1355 to 18 °C64 °F, about 35 mm1.4 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.

How Jataí compares

Compared with Rio Verde, about 84 km to the east, Jataí is on average 0.7 °C1.3 °F cooler and receives 12% more precipitation (1,398 mm55 in vs 1,252 mm49 in). The difference is largest in August (1.5 °C2.6 °F cooler).

Of the 223 places in Brazil covered by World Climates, Jataí is the 126th warmest by annual mean temperature and the 79th wettest by annual precipitation. See all of them on the Brazil climate page.

Places in other countries with the most similar temperature and rainfall pattern (seasons shifted for the other hemisphere where needed): Geita (Tanzania, Aw), Nsukka (Nigeria, Aw) and Kasulu (Tanzania, Aw).

Nearby places

All places in Brazil

Frequently asked questions

What is the warmest month in Jataí?

October is the warmest month in Jataí, with an average high of 32 °C (89 °F) and an average low of 20 °C (67 °F).

What is the coldest month in Jataí?

June is the coldest month, with an average high of 26 °C (79 °F) and an average low of 13 °C (56 °F).

When does it rain the most in Jataí?

December is the wettest month with about 226 mm (8.9 in) of precipitation; July is the driest with about 10 mm (0.4 in).

What is the best time to visit Jataí?

Judging by long-term averages, the most comfortable months are May–August.

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.

Sources and method