Jataí weather in December

In December, Jataí sees average daytime highs of 29°C and overnight lows near 20°C, with 232 mm of rain across 26.3 wet days and about 13.1 hours of daylight. It is the 8th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 9% of the time in December, and the air most often feels muggy.

Daylight stretches from about 13 hours at the start of December to 13 h 06 min by month's end. Set against the rest of the year, December is Jataí's 11th-clearest and 7th-windiest month. For the whole year in context, see Jataí's year-round climate.

Daytime high
29°
8th warmest
Overnight low
20°
11th coldest
Rainfall
232 mm
26.3 wet days
Daylight
13 h 06 min
6:51 AM – 7:55 PM
Cloud cover
79%
11th clearest
Wind
7 km/h
7th windiest
Solar energy
5.62 kWh/m²
Travel score
3.4
out of 10

Jataí is human settlement in Brazil.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical December day in Jataí reaches about 29°C in the afternoon and slips back to 20°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 31°C. Set against its neighbours, December runs on par with November and on par with January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12920
22920
32920
42920
52920
62920
72920
82920
92920
102920
112920
122920
132920
142920
152920
162920
172920
182920
192920
202920
212920
222920
232920
242920
252920
262920
272920
282920
292920
302920
312920

Jataí weather by month

How December compares with the rest of the year at a glance. December is the 8th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 20°24325.5133.5
Feb29° / 20°21223.312.63.4
Mar29° / 20°21625.112.13.5
Apr29° / 19°9413.211.65.2
May28° / 16°325.311.27.2
Jun28° / 15°111.510.98.1
Jul28° / 15°61.1117.9
Aug30° / 16°132.111.46.4
Sep31° / 19°608.411.94.7
Oct31° / 20°14318.912.43.7
Nov29° / 20°2032312.83.6
Dec29° / 20°23226.313.13.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 12% of December, with mostly cloudy or overcast conditions the remaining 80%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12377
22179
32080
41981
51981
61882
71882
81783
91882
101882
111981
121981
132080
142080
152179
162278
172278
182278
192377
202377
212278
222377
232377
242278
252179
262179
272080
282080
291882
301882
311882

Chance of precipitation in December

Any precipitation

Jataí gets around 232 mm of rain over 26.3 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 85% and peaks near 86% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
184
285
385
486
586
686
786
886
986
1086
1186
1286
1386
1486
1585
1685
1785
1884
1984
2084
2183
2283
2383
2483
2583
2683
2783
2883
2983
3083
3183

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the muggy band about 87% of days. Sticky, muggy-or-worse air turns up on roughly 96% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
126848
225858
325858
424868
524859
623869
713879
813879
913879
1013879
1113879
1213879
1304879
1404879
1504879
1604879
1704879
1804879
1904888
2004888
2104888
2204888
2304888
2403898
2503898
2603898
2703898
2803898
2903898
3003889
3104879

Wind in December

Winds average 7 km/h in December.

Across December, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 hours at the start of December to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over December. Sunrise moves from 6:47 AM to 6:58 AM, and sunset from 7:46 PM to 8:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.06:477:46
213.06:477:47
313.06:477:48
413.06:477:48
513.06:487:49
613.06:487:49
713.06:487:50
813.06:487:51
913.06:497:51
1013.06:497:52
1113.16:497:52
1213.16:507:53
1313.16:507:53
1413.16:507:54
1513.16:517:54
1613.16:517:55
1713.16:517:56
1813.16:527:56
1913.16:527:57
2013.16:537:57
2113.16:537:58
2213.16:547:58
2313.16:547:58
2413.16:557:59
2513.16:557:59
2613.16:568:00
2713.16:568:00
2813.16:578:01
2913.16:578:01
3013.16:588:01
3113.16:588:02

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.62 kWh/m².

For context, solar energy here swings from a low near 4.26 kWh/m² to a high of 5.97 kWh/m² in October across the year — December's 5.62 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.6Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.5Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
315.6Bright
Planning a trip in December

Hazard calendar for Jataí

In seasonPeak

In December, Jataí sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Jataí's monsoon runs October–March, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Jataí?

Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

3.4
Sightseeing
11th-best month of the year
4.3
Beach & pool
12th-best month of the year

December is a weaker month for outdoor sightseeing in Jataí.

What to pack for Jataí in December

From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In December, Jataí sees daytime highs around 29°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 26 days see rain.

light clothesrain gearsun protection

UV index in Jataí in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Jataí peaks around February 8 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 7 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 8UV 15Jun 21UV 7
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar14Extreme
Apr11Extreme
May9Very high
Jun7Very high
Jul8Very high
Aug9Very high
Sep10Extreme
Oct12Extreme
Nov14Extreme
Dec14Extreme

Air quality in Jataí in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Jataí is worst in September — around 25 µg/m³ PM2.5 (moderate), about 7.9× the cleanest month (July, 3 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1723 µg/m³Jul 113 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb7Good
Mar6Good
Apr5Good
May5Good
Jun4Good
Jul3Good
Aug8Good
Sep25Moderate
Oct11Good
Nov5Good
Dec6Good
Location & terrain

Where is Jataí?

Jataí sits at 17.9°S, 51.7°W, 741 m above sea level, in Brazil. The nearest listed city is Rio Verde, 84 km away.

Topography around Jataí

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Jataí.

Within 3 km, the terrain around Jataí has only modest variations in elevation — a maximum elevation change of 194 m around an average of 723 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 351 m; within 80 km, significant variations in elevation — a maximum elevation change of 583 m.

The land around Jataí is covered by artificial surfaces (54%) and trees (21%) within 3 km, cropland (55%) and trees (27%) within 16 km, and cropland (52%), trees (25%) and grassland (21%) within 80 km.

3 km
194 m
16 km
351 m
80 km
583 m
treesshrubsgrasslandcroplandartificial surfaceswater
December weather nearby: Rio Verde 84 km · Mineiros 94 km · Caiapônia 103 km · Santa Helena de Goiás 119 km · Cassilândia 137 km · Chapadão do Sul 139 km · Quirinópolis 148 km · Acreúna 152 km

Brazil travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / N
127 / 220 V · 60 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$10,713
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
89%
of population, 2024
Homicide rate
19.3
per 100k, 2023
Road deaths
16
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 482
Religion
Roman Catholic 57%Evangelical 27%none 9%other 4%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Jataí (-17.8794°, -51.7217°, elevation 741 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).