São João del Rei weather in December

In December, São João del Rei sees average daytime highs of 26°C and overnight lows near 18°C, with 238 mm of rain across 22.3 wet days and about 13.3 hours of daylight. It is the 4th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 8% of the time in December, and the air most often feels humid.

Daylight stretches from about 13 h 12 min at the start of December to 13 h 18 min by month's end. Set against the rest of the year, December is São João del Rei's 12th-clearest and 5th-windiest month. For the whole year in context, see São João del Rei's year-round climate.

Daytime high
26°
4th warmest
Overnight low
18°
10th coldest
Rainfall
238 mm
22.3 wet days
Daylight
13 h 18 min
6:15 AM – 7:32 PM
Cloud cover
78%
12th clearest
Wind
9 km/h
5th windiest
Solar energy
5.35 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 26°C through the month.

A typical December day in São João del Rei reaches about 26°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 23°C and 29°C. Set against its neighbours, December runs on par with November and on par with January.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12618
22618
32618
42618
52618
62618
72618
82618
92618
102618
112618
122618
132618
142618
152618
162618
172618
182618
192718
202718
212718
222718
232718
242718
252718
262718
272718
282718
292718
302718
312718

São João del Rei weather by month

How December compares with the rest of the year at a glance. December is the 4th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 18°22820.613.14.8
Feb27° / 18°13515.812.75.2
Mar27° / 18°14717.512.15.3
Apr26° / 16°498.711.56.9
May23° / 14°315.3117.6
Jun23° / 12°152.510.78.1
Jul23° / 12°10210.88.4
Aug24° / 13°172.811.38.5
Sep26° / 15°607.411.97.2
Oct26° / 16°10012.612.56.1
Nov26° / 17°18618.9135.1
Dec26° / 18°23822.313.34.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 8% of the time in December, the cloudiest month of the year.

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 (%)
11981
21882
31882
41783
51684
61684
71684
81684
91783
101882
111882
121882
131882
142179
152179
162179
172179
182278
192278
202278
212377
222377
232377
242278
252179
262278
272179
282179
292080
302080
312080

Chance of precipitation in December

Any precipitation

São João del Rei gets around 238 mm of rain over 22.3 wet days in December, the wettest month. 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 74% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
168
268
369
469
569
670
770
870
971
1071
1171
1271
1371
1471
1571
1671
1772
1872
1972
2072
2173
2273
2373
2473
2574
2674
2774
2874
2974
3074
3173

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the humid band about 51% of days. Sticky, muggy-or-worse air turns up on roughly 41% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11145530
21135432
31125334
41115335
51115137
61105138
70105139
8095140
9085141
10085141
11085141
12075142
13075142
14075142
15065242
16065242
17065242
18065242
19065242
20065242
21055342
22055342
23055243
24055144
25055144
26055045
27055046
28054946
29054946
30054847
31054847

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 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
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 12 min at the start of December to 13 h 18 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 6:11 AM to 6:22 AM, and sunset from 7:23 PM to 7:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.26:117:23
213.26:117:23
313.26:117:24
413.26:117:25
513.26:127:25
613.26:127:26
713.26:127:26
813.26:127:27
913.36:137:28
1013.36:137:28
1113.36:137:29
1213.36:137:29
1313.36:147:30
1413.36:147:30
1513.36:147:31
1613.36:157:32
1713.36:157:32
1813.36:167:33
1913.36:167:33
2013.36:177:34
2113.36:177:34
2213.36:177:35
2313.36:187:35
2413.36:187:36
2513.36:197:36
2613.36:197:36
2713.36:207:37
2813.36:207:37
2913.36:217:38
3013.36:227:38
3113.36:227:38

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.35 kWh/m².

For context, solar energy here swings from a low near 3.69 kWh/m² to a high of 5.74 kWh/m² in February across the year — December's 5.35 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.2Bright
115.2Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
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
305.4Bright
315.4Bright
Planning a trip in December

Hazard calendar for São João del Rei

In seasonPeak

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

São João del Rei's monsoon runs November–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 São João del Rei?

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

4.6
Sightseeing
12th-best month of the year
4.5
Beach & pool
12th-best month of the year

December is a reasonable time to visit São João del Rei for sightseeing.

What to pack for São João del Rei in December

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

In December, São João del Rei sees daytime highs around 26°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 João del Rei 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 João del Rei peaks around February 9 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeFeb 9UV 15Jun 22UV 7
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar13Extreme
Apr10Extreme
May8Very high
Jun7High
Jul7High
Aug9Very high
Sep9Very high
Oct12Extreme
Nov14Extreme
Dec14Extreme

Air quality in São João del Rei 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 João del Rei is worst in September — around 17 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (January, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1616 µg/m³Jan 118 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar9Good
Apr9Good
May10Good
Jun10Good
Jul9Good
Aug11Good
Sep17Moderate
Oct11Good
Nov9Good
Dec8Good
Location & terrain

Where is São João del Rei?

São João del Rei sits at 21.1°S, 44.3°W, 911 m above sea level, in Brazil. The nearest listed city is Barroso, 30 km away.

Topography around São João del Rei

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São João del Rei.

Within 3 km, the terrain around São João del Rei has significant variations in elevation — a maximum elevation change of 301 m around an average of 956 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 531 m; within 80 km, large variations in elevation — a maximum elevation change of 1,184 m.

The land around São João del Rei is covered by grassland (42%), trees (28%) and artificial surfaces (28%) within 3 km, grassland (53%) and trees (38%) within 16 km, and grassland (56%) and trees (34%) within 80 km.

3 km
301 m
16 km
531 m
80 km
1,184 m
treesgrasslandcroplandartificial surfaces
December weather nearby: Barroso 30 km · Carandaí 51 km · Barbacena 52 km · Bom Sucesso 53 km · Santo Antônio do Amparo 71 km · Conselheiro Lafaiete 72 km · Oliveira 76 km · Carmópolis de Minas 77 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 João del Rei (-21.1356°, -44.2617°, elevation 911 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).