São Miguel d'Oeste weather in December

In December, São Miguel d'Oeste sees average daytime highs of 29°C and overnight lows near 19°C, with 170 mm of rain across 16.1 wet days and about 13.6 hours of daylight. It is the 2nd-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 33% of the time in December, and the air most often feels muggy.

Daylight stretches from about 13 h 36 min at the start of December to 13 h 42 min by month's end. Set against the rest of the year, December is São Miguel d'Oeste's 9th-clearest and 8th-windiest month. For the whole year in context, see São Miguel d'Oeste's year-round climate.

Daytime high
29°
2nd warmest
Overnight low
19°
10th coldest
Rainfall
170 mm
16.1 wet days
Daylight
13 h 42 min
6:40 AM – 8:20 PM
Cloud cover
59%
9th clearest
Wind
8 km/h
8th windiest
Solar energy
6.36 kWh/m²
Travel score
4.6
out of 10

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 São Miguel d'Oeste reaches about 29°C in the afternoon and slips back to 19°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 33°C. Set against its neighbours, December runs about 1°C warmer than November and on par with January.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12918
22918
32918
42918
52918
62918
72918
82918
92918
102919
112919
122919
132919
142919
152919
162919
172919
183019
193019
203019
213019
223019
233019
243019
253019
263019
273020
283020
293020
303020
313020

São Miguel d'Oeste weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 20°15817.713.54.2
Feb29° / 19°14916.612.94.3
Mar29° / 18°14013.712.25.3
Apr26° / 16°13011.111.46.6
May22° / 13°14210.110.76.7
Jun21° / 12°1469.910.46.5
Jul21° / 11°1299.510.56.7
Aug23° / 12°1007.711.17.5
Sep25° / 14°16811.211.86.8
Oct26° / 16°21114.612.65.9
Nov28° / 17°15312.813.35.7
Dec29° / 19°17016.113.64.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 18% of December, with mostly cloudy or overcast conditions the remaining 49%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25050
35050
45050
55050
64951
75050
85050
95149
105149
115149
125248
135248
145248
155248
165248
175347
185347
195347
205347
215248
225248
235248
245149
255050
265050
275050
284951
294951
304951
314951

Chance of precipitation in December

Any precipitation

São Miguel d'Oeste gets around 170 mm of rain over 16.1 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 52% and peaks near 56% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
148
249
349
450
550
650
750
850
950
1050
1150
1250
1350
1450
1551
1651
1751
1851
1951
2052
2152
2253
2354
2454
2555
2655
2755
2855
2956
3056
3156

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 46% of days. Sticky, muggy-or-worse air turns up on roughly 59% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
171631415
271631425
361531435
461430436
561429446
661429456
761328467
861328467
961327477
1061327478
1151227488
1251226488
1351226489
1441226499
1541126499
16411264910
17411264911
18311264812
19311254813
20310254814
21310254815
22210244717
2329244718
2429234719
2529234620
2618234622
2718234523
2818234524
2918234424
3017224425
3117224426

Wind in December

Winds average 8 km/h in December.

Across December, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 36 min at the start of December to 13 h 42 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 6:37 AM to 6:47 AM, and sunset from 8:11 PM to 8:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.66:378:11
213.66:378:11
313.66:378:12
413.66:378:13
513.66:378:13
613.66:388:14
713.66:388:15
813.66:388:15
913.66:388:16
1013.66:388:17
1113.66:398:17
1213.76:398:18
1313.76:398:19
1413.76:398:19
1513.76:408:20
1613.76:408:20
1713.76:408:21
1813.76:418:21
1913.76:418:22
2013.76:428:23
2113.76:428:23
2213.76:438:23
2313.76:438:24
2413.76:448:24
2513.76:448:25
2613.76:458:25
2713.76:458:26
2813.76:468:26
2913.76:468:26
3013.76:478:27
3113.76:478:27

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.36 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.75 kWh/m² to a high of 6.36 kWh/m² in December across the year — December's 6.36 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.4Intense
46.4Intense
56.4Intense
66.4Intense
76.4Intense
86.4Intense
96.4Intense
106.4Intense
116.4Intense
126.4Intense
136.4Intense
146.4Intense
156.4Intense
166.4Intense
176.4Intense
186.4Intense
196.4Intense
206.4Intense
216.4Intense
226.4Intense
236.4Intense
246.4Intense
256.4Intense
266.4Intense
276.4Intense
286.4Intense
296.4Intense
306.4Intense
316.4Intense
Planning a trip in December

Is December a good time to visit São Miguel d'Oeste?

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

4.6
Sightseeing
10th-best month of the year
6.1
Beach & pool
4th-best month of the year

December is a reasonable time to visit São Miguel d'Oeste for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for São Miguel d'Oeste in December

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

In December, São Miguel d'Oeste sees daytime highs around 29°C and nights near 19°C. Pack light clothes, rain gear and sun protection. About 16 days see rain.

light clothesrain gearsun protection

UV index in São Miguel 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 São Miguel d'Oeste peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighModerateHighVery highExtremeJan 21UV 15Jun 22UV 5
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar11Extreme
Apr8Very high
May6High
Jun5Moderate
Jul5Moderate
Aug6High
Sep7Very high
Oct8Very high
Nov11Extreme
Dec13Extreme

Air quality in São Miguel 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 São Miguel d'Oeste is worst in September — around 17 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (March, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1616 µg/m³Mar 116 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb6Good
Mar6Good
Apr7Good
May7Good
Jun7Good
Jul8Good
Aug11Good
Sep17Moderate
Oct11Good
Nov8Good
Dec7Good
Location & terrain

Where is São Miguel d'Oeste?

São Miguel d'Oeste sits at 26.7°S, 53.5°W, 642 m above sea level, in Brazil. The nearest listed city is Maravilha, 35 km away.

Topography around São Miguel d'Oeste

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

Within 3 km, the terrain around São Miguel d'Oeste has significant variations in elevation — a maximum elevation change of 262 m around an average of 627 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 523 m; within 80 km, large variations in elevation — a maximum elevation change of 850 m.

The land around São Miguel d'Oeste is covered by trees (49%) and artificial surfaces (28%) within 3 km, trees (54%) and grassland (26%) within 16 km, and trees (68%) within 80 km.

3 km
262 m
16 km
523 m
80 km
850 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Maravilha 35 km · Palmitos 52 km · Itapiranga 53 km · Dionísio Cerqueira 54 km · Pinhalzinho 54 km · San Pedro 60 km · San Vicente 62 km · Frederico Westphalen 72 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 São Miguel d'Oeste (-26.7253°, -53.5181°, elevation 642 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).