São Miguel Arcanjo weather in December

In December, São Miguel Arcanjo sees average daytime highs of 27°C and overnight lows near 18°C, with 207 mm of rain across 22.2 wet days and about 13.4 hours of daylight. It is the 3rd-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 10% of the time in December, and the air most often feels muggy.

Daylight stretches from about 13 h 24 min at the start of December to 13 h 30 min by month's end. Set against the rest of the year, December is São Miguel Arcanjo's 9th-clearest and 4th-windiest month. For the whole year in context, see São Miguel Arcanjo's year-round climate.

Daytime high
27°
3rd warmest
Overnight low
18°
9th coldest
Rainfall
207 mm
22.2 wet days
Daylight
13 h 30 min
6:24 AM – 7:52 PM
Cloud cover
77%
9th clearest
Wind
9 km/h
4th windiest
Solar energy
5.37 kWh/m²
Travel score
4.5
out of 10

São Miguel Arcanjo 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 27°C through the month.

A typical December day in São Miguel Arcanjo reaches about 27°C in the afternoon and slips back to 18°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 31°C. Set against its neighbours, December runs about 2°C warmer than November and on par with January.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12617
22617
32617
42618
52618
62618
72618
82618
92618
102618
112618
122618
132718
142718
152718
162718
172718
182718
192718
202719
212719
222719
232719
242719
252719
262719
272719
282719
292719
302719
312719

São Miguel Arcanjo weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 19°29825.313.34.1
Feb28° / 19°22922.312.84.1
Mar27° / 19°17523.112.24.6
Apr25° / 17°8612.811.56.2
May22° / 14°8610.410.96.5
Jun21° / 13°707.710.66.9
Jul21° / 12°757.710.76.9
Aug22° / 12°577.511.27.1
Sep23° / 14°12212.911.96.3
Oct24° / 16°14416.912.65.6
Nov25° / 17°16919.213.25.1
Dec27° / 18°20722.213.44.5

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 12% of December, with mostly cloudy or overcast conditions the remaining 77%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12476
22377
32278
42278
52278
62377
72377
82278
92278
102278
112377
122377
132377
142377
152476
162476
172476
182575
192575
202575
212575
222575
232476
242377
252377
262278
272278
282080
292080
302080
311882

Chance of precipitation in December

Any precipitation

São Miguel Arcanjo gets around 207 mm of rain over 22.2 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 72% and peaks near 77% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
166
267
367
468
569
669
770
870
971
1071
1171
1272
1372
1472
1573
1673
1774
1874
1974
2074
2174
2274
2374
2474
2575
2675
2776
2876
2976
3077
3177

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 58% of days. Sticky, muggy-or-worse air turns up on roughly 69% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
11331515
21230526
31230526
41130536
51129546
61029547
71028557
8928567
9927577
10927568
11827578
12826588
13826588
14825589
15725599
16724609
177236010
187236010
196226111
206226012
216225913
225216113
234216114
244206115
253206116
263196117
273196018
282186119
292186119
302186020
312176021

Wind in December

Winds average 9 km/h in December.

Across December, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 24 min at the start of December to 13 h 30 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 6:21 AM to 6:31 AM, and sunset from 7:43 PM to 7:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.46:217:43
213.46:217:43
313.46:217:44
413.46:217:45
513.46:217:45
613.46:217:46
713.46:227:47
813.46:227:47
913.46:227:48
1013.46:227:49
1113.46:237:49
1213.56:237:50
1313.56:237:50
1413.56:237:51
1513.56:247:52
1613.56:247:52
1713.56:257:53
1813.56:257:53
1913.56:257:54
2013.56:267:54
2113.56:267:55
2213.56:277:55
2313.56:277:56
2413.56:287:56
2513.56:287:57
2613.56:297:57
2713.56:297:57
2813.56:307:58
2913.56:307:58
3013.56:317:58
3113.56:317:59

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.37 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.94 kWh/m² to a high of 5.37 kWh/m² in December across the year — December's 5.37 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.2Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.4Bright
175.4Bright
185.4Bright
195.4Bright
205.4Bright
215.4Bright
225.4Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.3Bright
315.3Bright
Planning a trip in December

Hazard calendar for São Miguel Arcanjo

In seasonPeak

In December, São Miguel Arcanjo sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

São Miguel Arcanjo's rainy season runs October–March, 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 São Miguel Arcanjo?

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

4.5
Sightseeing
10th-best month of the year
4.5
Beach & pool
8th-best month of the year

December is a reasonable time to visit São Miguel Arcanjo for sightseeing.

What to pack for São Miguel Arcanjo in December

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

In December, São Miguel Arcanjo sees daytime highs around 27°C and nights near 18°C. Pack rain gear. Worth having: light clothes and sun protection. About 22 days see rain.

rain gearlight clothessun protection

UV index in São Miguel Arcanjo 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 São Miguel Arcanjo peaks around January 20 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 20UV 15Jul 11UV 5
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug8Very high
Sep8Very high
Oct11Extreme
Nov13Extreme
Dec14Extreme

Air quality in São Miguel Arcanjo 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 Arcanjo is worst in September — around 18 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (January, 10 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1017 µg/m³Jan 1410 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb10Good
Mar10Good
Apr11Good
May14Moderate
Jun15Moderate
Jul16Moderate
Aug17Moderate
Sep18Moderate
Oct13Moderate
Nov10Good
Dec10Good
Location & terrain

Where is São Miguel Arcanjo?

São Miguel Arcanjo sits at 23.9°S, 48.0°W, 666 m above sea level, in Brazil. The nearest listed city is Pilar do Sul, 29 km away.

Topography around São Miguel Arcanjo

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

Within 3 km, the terrain around São Miguel Arcanjo has only modest variations in elevation — a maximum elevation change of 125 m around an average of 677 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 202 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,202 m.

The land around São Miguel Arcanjo is covered by trees (34%), grassland (32%) and cropland (22%) within 3 km, trees (51%), cropland (28%) and grassland (21%) within 16 km, and trees (64%) within 80 km.

3 km
125 m
16 km
202 m
80 km
1,202 m
treesgrasslandcroplandartificial surfaces
December weather nearby: Pilar do Sul 29 km · Itapetininga 32 km · Capão Bonito 38 km · Salto de Pirapora 50 km · Capela do Alto 53 km · Araçoiaba da Serra 57 km · Guareí 59 km · Tatuí 60 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 Arcanjo (-23.8783°, -47.9972°, elevation 666 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).