Machadinho d'Oeste weather in December

In December, Machadinho d'Oeste sees average daytime highs of 30°C and overnight lows near 23°C, with 282 mm of rain across 28.4 wet days and about 12.5 hours of daylight. It is the 7th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 1% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 12 h 30 min at the start of December to 12 h 30 min by month's end. Set against the rest of the year, December is Machadinho d'Oeste's 9th-clearest and 7th-windiest month. For the whole year in context, see Machadinho d'Oeste's year-round climate.

Daytime high
30°
7th warmest
Overnight low
23°
9th coldest
Rainfall
282 mm
28.4 wet days
Daylight
12 h 30 min
5:48 AM – 6:21 PM
Cloud cover
87%
9th clearest
Wind
5 km/h
7th windiest
Solar energy
4.65 kWh/m²
Travel score
2.7
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical December day in Machadinho d'Oeste reaches about 30°C in the afternoon and slips back to 23°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 33°C. Set against its neighbours, December runs on par with November and on par with January.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13023
23023
33023
43023
53023
63023
73023
83023
93023
103023
113023
123023
133023
143023
153023
163023
173023
183023
193023
203023
213023
223023
233023
243023
253023
263023
273023
283023
293023
303023
313023

How December really feels in Machadinho d'Oeste

Once humidity and wind are folded in, December averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in December is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Machadinho d'Oeste weather by month

How December compares with the rest of the year at a glance. December is the 7th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 23°30229.112.52.7
Feb30° / 23°29026.812.32.7
Mar30° / 23°28629.212.12.7
Apr30° / 23°1992611.83.0
May30° / 22°11119.511.63.9
Jun31° / 22°276.111.54.9
Jul33° / 22°142.911.54.2
Aug34° / 22°325.811.73.3
Sep33° / 23°9514.911.92.9
Oct32° / 23°17122.612.22.7
Nov31° / 23°22525.612.42.7
Dec30° / 23°28228.412.52.7

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 5% of December, with mostly cloudy or overcast conditions the remaining 94%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1694
2595
3595
4595
5595
6694
7694
8694
9793
10793
11793
12793
13793
14793
15793
16793
17793
18793
19793
20793
21793
22793
23694
24694
25694
26694
27694
28595
29595
30595
31595

Chance of precipitation in December

Any precipitation

Machadinho d'Oeste gets around 282 mm of rain over 28.4 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 91% and peaks near 93% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
188
289
389
489
589
690
790
891
991
1091
1191
1291
1392
1492
1592
1692
1792
1892
1992
2092
2192
2292
2392
2492
2593
2693
2793
2893
2993
3093
3193

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the oppressive band about 84% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
17525
27525
37624
47624
57723
67723
77822
87921
97921
108020
118020
128119
138218
148317
158416
168515
178614
188614
198713
208812
218812
228911
238911
248911
258911
268911
278911
288911
298911
308911
318911

Wind in December

Winds average 5 km/h in December.

Across December, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 30 min at the start of December to 12 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over December. Sunrise moves from 5:42 AM to 5:55 AM, and sunset from 6:13 PM to 6:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:426:13
212.55:436:14
312.55:436:14
412.55:436:15
512.55:436:15
612.55:446:16
712.55:446:16
812.55:446:17
912.55:456:17
1012.55:456:18
1112.55:466:18
1212.55:466:19
1312.55:466:19
1412.55:476:20
1512.55:476:20
1612.55:486:21
1712.55:486:21
1812.55:496:22
1912.65:496:22
2012.65:496:22
2112.65:506:23
2212.65:506:23
2312.65:516:24
2412.65:516:24
2512.65:526:25
2612.55:526:25
2712.55:536:26
2812.55:536:26
2912.55:546:27
3012.55:546:27
3112.55:556:27

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.65 kWh/m².

For context, solar energy here swings from a low near 4.37 kWh/m² to a high of 5.56 kWh/m² in September across the year — December's 4.65 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.6Bright
174.6Bright
184.6Bright
194.6Bright
204.6Bright
214.6Bright
224.6Bright
234.6Bright
244.6Bright
254.6Bright
264.6Bright
274.6Bright
284.6Bright
294.5Bright
304.5Bright
314.5Bright
Planning a trip in December

Hazard calendar for Machadinho d'Oeste

In seasonPeak

In December, Machadinho d'Oeste sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Machadinho d'Oeste's rainy season runs October–April, when most of the year's rain falls.

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

Is December a good time to visit Machadinho d'Oeste?

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

2.7
Sightseeing
7th-best month of the year
3.8
Beach & pool
9th-best month of the year

December is a weaker month for outdoor sightseeing in Machadinho d'Oeste.

What to pack for Machadinho d'Oeste in December

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

In December, Machadinho d'Oeste sees daytime highs around 30°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 28 days see rain.

light clothesrain gearsun protection

UV index in Machadinho d'Oeste in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Machadinho d'Oeste peaks around March 11 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 12 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateExtremeMar 11UV 15Sep 12UV 4
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar15Extreme
Apr15Extreme
May10Extreme
Jun9Very high
Jul9Very high
Aug6High
Sep4Moderate
Oct11Extreme
Nov13Extreme
Dec13Extreme

Air quality in Machadinho d'Oeste 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 Machadinho d'Oeste is worst in September — around 79 µg/m³ PM2.5 (unhealthy), about 9.7× the cleanest month (June, 8 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecGoodGoodModerateUnhealthyModerateSep 1376 µg/m³Jun 128 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb12Good
Mar12Moderate
Apr10Good
May9Good
Jun8Good
Jul10Good
Aug62Unhealthy
Sep79Unhealthy
Oct33Moderate
Nov20Moderate
Dec14Moderate
Location & terrain

Where is Machadinho d'Oeste?

Machadinho d'Oeste sits at 9.4°S, 62.0°W, 101 m above sea level, in Brazil. The nearest listed city is Jaru, 123 km away.

Topography around Machadinho d'Oeste

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Machadinho d'Oeste.

Within 3 km, the terrain around Machadinho d'Oeste has only modest variations in elevation — a maximum elevation change of 70 m around an average of 125 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 207 m; within 80 km, significant variations in elevation — a maximum elevation change of 420 m.

The land around Machadinho d'Oeste is covered by grassland (50%) and trees (37%) within 3 km, trees (53%) and grassland (45%) within 16 km, and trees (67%) and grassland (32%) within 80 km.

3 km
70 m
16 km
207 m
80 km
420 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Jaru 123 km · Ariquemes 127 km · Ouro Preto do Oeste 147 km · Alto Paraíso 149 km · Ji Paraná 160 km · Presidente Médici 193 km · Candeias do Jamari 201 km · Buritis 220 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 Machadinho d'Oeste (-9.4439°, -61.9814°, elevation 101 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).