São João dos Patos weather in December

In December, São João dos Patos sees average daytime highs of 31°C and overnight lows near 23°C, with 147 mm of rain across 17.3 wet days and about 12.4 hours of daylight. It is the 7th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 19% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 12 h 24 min at the start of December to 12 h 24 min by month's end. Set against the rest of the year, December is São João dos Patos's 8th-clearest and 9th-windiest month. For the whole year in context, see São João dos Patos's year-round climate.

Daytime high
31°
7th warmest
Overnight low
23°
9th coldest
Rainfall
147 mm
17.3 wet days
Daylight
12 h 24 min
5:40 AM – 6:02 PM
Cloud cover
68%
8th clearest
Wind
6 km/h
9th windiest
Solar energy
5.23 kWh/m²
Travel score
3.5
out of 10

São João dos Patos is 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 31°C through the month.

A typical December day in São João dos Patos reaches about 31°C in the afternoon and slips back to 23°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 34°C. Set against its neighbours, December runs about 1°C cooler than November and about 1°C warmer than January.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13224
23224
33224
43224
53223
63223
73223
83223
93223
103223
113223
123223
133223
143123
153123
163123
173123
183123
193123
203123
213123
223123
233123
243123
253123
263123
273123
283123
293123
303123
313123

How December really feels in São João dos Patos

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.

São João dos Patos 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°22725.212.33.1
Feb30° / 22°21522.912.23.1
Mar30° / 22°23126123.0
Apr31° / 23°14219.111.93.6
May31° / 23°508.311.74.5
Jun32° / 23°61.211.65.0
Jul32° / 23°40.511.74.9
Aug34° / 23°1011.84.1
Sep35° / 24°100.8123.2
Oct35° / 25°334.712.13.0
Nov33° / 24°9611.312.33.4
Dec31° / 23°14717.312.43.5

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 19% of December, with mostly cloudy or overcast conditions the remaining 61%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24753
34654
44654
54654
64654
74555
84456
94456
104357
114159
124159
134060
143961
153862
163862
173862
183763
193763
203664
213565
223565
233466
243466
253466
263367
273268
283268
293169
303070
313070

Chance of precipitation in December

Any precipitation

São João dos Patos gets around 147 mm of rain over 17.3 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 57% and peaks near 71% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
146
246
347
447
548
648
749
850
951
1052
1153
1254
1355
1456
1557
1658
1759
1859
1960
2061
2161
2262
2362
2463
2564
2665
2766
2868
2969
3070
3171

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 85% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
112574
212475
312376
412376
512277
602179
702080
802080
901882
1001783
1101684
1201585
1301486
1401486
1501387
1601288
1701288
1801189
1901189
2001189
2101189
2201189
2301090
2401090
2501090
260991
270991
280991
290892
300892
310892

Wind in December

Winds average 6 km/h in December.

Across December, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 24 min at the start of December to 12 h 24 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 5:34 AM to 5:47 AM, and sunset from 5:55 PM to 6:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:345:55
212.45:345:56
312.45:355:56
412.45:355:56
512.45:355:57
612.45:365:57
712.45:365:58
812.45:365:58
912.45:375:59
1012.45:375:59
1112.45:386:00
1212.45:386:00
1312.45:386:01
1412.45:396:01
1512.45:396:02
1612.45:406:02
1712.45:406:03
1812.45:416:03
1912.45:416:04
2012.45:426:04
2112.45:426:05
2212.45:426:05
2312.45:436:06
2412.45:436:06
2512.45:446:06
2612.45:446:07
2712.45:456:07
2812.45:456:08
2912.45:466:08
3012.45:466:09
3112.45:476:09

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.23 kWh/m².

For context, solar energy here swings from a low near 4.59 kWh/m² to a high of 6.65 kWh/m² in September across the year — December's 5.23 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.4Bright
55.4Bright
65.4Bright
75.4Bright
85.4Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
304.9Bright
314.9Bright
Planning a trip in December

Hazard calendar for São João dos Patos

In seasonPeak

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

São João dos Patos's monsoon runs December–April, 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 dos Patos?

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

3.5
Sightseeing
6th-best month of the year
5.3
Beach & pool
8th-best month of the year

December is a weaker month for outdoor sightseeing in São João dos Patos.

What to pack for São João dos Patos in December

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

In December, São João dos Patos sees daytime highs around 31°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

light clothesrain gearsun protection

UV index in São João dos Patos in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 11 (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 dos Patos peaks around March 11 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 24 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 11UV 15Jul 24UV 10
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Very high
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec11Extreme

Air quality in São João dos Patos 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 dos Patos is worst in October — around 26 µg/m³ PM2.5 (moderate), about 6.3× the cleanest month (June, 4 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateOct 1525 µg/m³Jun 184 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar11Good
Apr10Good
May7Good
Jun4Good
Jul5Good
Aug10Good
Sep17Moderate
Oct26Moderate
Nov14Moderate
Dec13Moderate
Location & terrain

Where is São João dos Patos?

São João dos Patos sits at 6.5°S, 43.7°W, 346 m above sea level, in Brazil. The nearest listed city is Paraibano, 32 km away.

Topography around São João dos Patos

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

Within 3 km, the terrain around São João dos Patos has only modest variations in elevation — a maximum elevation change of 172 m around an average of 347 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 336 m; within 80 km, significant variations in elevation — a maximum elevation change of 407 m.

The land around São João dos Patos is covered by trees (66%) within 3 km, trees (78%) within 16 km, and trees (72%) within 80 km.

3 km
172 m
16 km
336 m
80 km
407 m
treesshrubsgrasslandcroplandartificial surfaceswater
December weather nearby: Paraibano 32 km · Passagem Franca 36 km · Pastos Bons 43 km · Mirador 74 km · Buriti Bravo 75 km · Colinas 80 km · Barão de Grajaú 80 km · Floriano 81 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 dos Patos (-6.495°, -43.7022°, elevation 346 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).