Mirassol d'Oeste weather in December

In December, Mirassol d'Oeste sees average daytime highs of 32°C and overnight lows near 24°C, with 199 mm of rain across 24.4 wet days and about 12.9 hours of daylight. It is the 5th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 10% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 12 h 54 min at the start of December to 12 h 54 min by month's end. Set against the rest of the year, December is Mirassol d'Oeste's 10th-clearest and 6th-windiest month. For the whole year in context, see Mirassol d'Oeste's year-round climate.

Daytime high
32°
5th warmest
Overnight low
24°
12th coldest
Rainfall
199 mm
24.4 wet days
Daylight
12 h 54 min
6:21 AM – 7:16 PM
Cloud cover
77%
10th clearest
Wind
7 km/h
6th windiest
Solar energy
5.81 kWh/m²
Travel score
2.6
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical December day in Mirassol d'Oeste reaches about 32°C in the afternoon and slips back to 24°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 35°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)
13224
23224
33224
43224
53224
63224
73224
83224
93224
103224
113224
123224
133224
143224
153224
163224
173224
183224
193224
203224
213224
223224
233224
243224
253224
263224
273224
283224
293224
303224
313224

How December really feels in Mirassol 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.

Mirassol d'Oeste weather by month

How December compares with the rest of the year at a glance. December is the 5th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 24°22324.512.82.6
Feb31° / 24°20522.712.52.7
Mar32° / 24°16322.512.12.9
Apr31° / 23°9313.111.74.0
May30° / 21°466.811.35.5
Jun30° / 19°122.111.16.3
Jul30° / 18°101.411.26.3
Aug33° / 20°142.511.54.7
Sep34° / 23°467.211.93.3
Oct34° / 24°11215.512.42.7
Nov33° / 24°17319.912.72.8
Dec32° / 24°19924.412.92.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 10% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 75%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12278
22179
32080
42080
52080
62080
72278
82278
92377
102476
112476
122674
132674
142773
152872
162872
172971
183070
193070
203070
212971
222872
232872
242773
252674
262674
272575
282476
292377
302278
312278

Chance of precipitation in December

Any precipitation

Mirassol d'Oeste gets around 199 mm of rain over 24.4 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 78% and peaks near 81% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
176
277
377
478
578
678
777
877
977
1077
1177
1277
1377
1477
1577
1677
1777
1877
1977
2078
2178
2278
2379
2480
2580
2681
2781
2881
2981
3081
3181

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 80% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1157816
2157816
3147916
4147916
5147817
6147817
7137917
8137917
9137917
10137917
11137917
12137917
13137917
14137917
15128017
16128017
17128017
18128116
19128116
20128116
21128116
22128116
23128215
24128215
25118315
26018514
27018514
28018514
29018514
30018514
31018514

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 12 h 54 min at the start of December to 12 h 54 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 6:16 AM to 6:28 AM, and sunset from 7:08 PM to 7:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.96:167:08
212.96:167:09
312.96:177:09
412.96:177:10
512.96:177:10
612.96:177:11
712.96:187:11
812.96:187:12
912.96:187:13
1012.96:197:13
1112.96:197:14
1212.96:197:14
1312.96:207:15
1412.96:207:15
1512.96:207:16
1612.96:217:16
1712.96:217:17
1812.96:227:17
1912.96:227:18
2012.96:227:18
2112.96:237:19
2212.96:237:19
2312.96:247:20
2412.96:247:20
2512.96:257:21
2612.96:257:21
2712.96:267:22
2812.96:267:22
2912.96:277:22
3012.96:277:23
3112.96:287:23

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.81 kWh/m².

For context, solar energy here swings from a low near 4.27 kWh/m² to a high of 6 kWh/m² in October across the year — December's 5.81 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.8Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.9Bright
185.9Bright
195.9Bright
205.9Bright
215.9Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
265.9Bright
275.9Bright
285.8Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in December

Hazard calendar for Mirassol d'Oeste

In seasonPeak

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

Mirassol d'Oeste'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 Mirassol d'Oeste?

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

2.6
Sightseeing
11th-best month of the year
4.2
Beach & pool
10th-best month of the year

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

What to pack for Mirassol d'Oeste in December

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

In December, Mirassol d'Oeste sees daytime highs around 32°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 24 days see rain.

light clothesrain gearsun protection

UV index in Mirassol d'Oeste 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 Mirassol d'Oeste peaks around January 22 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 15 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateExtremeJan 22UV 15Sep 15UV 4
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar14Extreme
Apr12Extreme
May9Very high
Jun8Very high
Jul8Very high
Aug9Very high
Sep3Moderate
Oct11Extreme
Nov13Extreme
Dec14Extreme

Air quality in Mirassol 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 Mirassol d'Oeste is worst in September — around 64 µg/m³ PM2.5 (unhealthy), about 10.2× the cleanest month (July, 6 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateSep 1759 µg/m³Jul 106 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb10Good
Mar9Good
Apr7Good
May7Good
Jun7Good
Jul6Good
Aug21Moderate
Sep64Unhealthy
Oct26Moderate
Nov15Moderate
Dec11Good
Location & terrain

Where is Mirassol d'Oeste?

Mirassol d'Oeste sits at 15.7°S, 58.1°W, 292 m above sea level, in Brazil. The nearest listed city is São José dos Quatro Marcos, 11 km away.

Topography around Mirassol d'Oeste

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

Within 3 km, the terrain around Mirassol d'Oeste has only modest variations in elevation — a maximum elevation change of 177 m around an average of 246 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 314 m; within 80 km, large variations in elevation — a maximum elevation change of 600 m.

The land around Mirassol d'Oeste is covered by grassland (57%) and trees (22%) within 3 km, grassland (63%) and trees (29%) within 16 km, and grassland (55%) and trees (39%) within 80 km.

3 km
177 m
16 km
314 m
80 km
600 m
treesshrubsgrasslandcroplandartificial surfaceswetland
December weather nearby: São José dos Quatro Marcos 11 km · Lambari d'Oeste 40 km · Cáceres 62 km · Barra do Bugres 118 km · Nova Olímpia 130 km · Tangará da Serra 134 km · Pontes e Lacerda 143 km · Poconé 170 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 Mirassol d'Oeste (-15.6757°, -58.0902°, elevation 292 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).