Matão weather in December

In December, Matão sees average daytime highs of 29°C and overnight lows near 21°C, with 237 mm of rain across 21.9 wet days and about 13.3 hours of daylight. It is the 7th-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 14% of the time in December, and the air most often feels muggy.

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 Matão's 11th-clearest and 8th-windiest month. For the whole year in context, see Matão's year-round climate.

Daytime high
29°
7th warmest
Overnight low
21°
10th coldest
Rainfall
237 mm
21.9 wet days
Daylight
13 h 18 min
6:30 AM – 7:49 PM
Cloud cover
72%
11th clearest
Wind
9 km/h
8th windiest
Solar energy
5.79 kWh/m²
Travel score
3.8
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 Matão reaches about 29°C in the afternoon and slips back to 21°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 32°C. Set against its neighbours, December runs on par with November and on par with January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12920
22920
32920
42920
52920
62921
72921
82921
92921
102921
112921
122921
132921
142921
152921
162921
172921
182921
192921
202921
212921
222921
232921
242921
252921
262921
272921
282921
292921
302921
312921

Matão weather by month

How December compares with the rest of the year at a glance. December is the 7th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 21°28823.313.23.6
Feb30° / 21°20019.612.73.8
Mar29° / 20°17919.212.24.3
Apr29° / 19°718.911.56.0
May26° / 16°525.7117.5
Jun26° / 15°313.210.78.1
Jul26° / 15°232.910.88.2
Aug28° / 16°243.211.37.4
Sep30° / 18°717.711.95.6
Oct30° / 19°12613.312.54.5
Nov30° / 20°18417.2134.3
Dec29° / 21°23721.913.33.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 16% of December, with mostly cloudy or overcast conditions the remaining 70%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13367
23268
33268
43070
52971
62971
72971
82971
92872
102971
112971
123070
133070
143169
153268
163268
173268
183367
193367
203268
213268
223268
233169
243169
253070
263070
272872
282872
292773
302773
312674

Chance of precipitation in December

Any precipitation

Matão gets around 237 mm of rain over 21.9 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 70% and peaks near 75% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
163
264
366
466
567
668
769
869
969
1070
1170
1270
1370
1470
1571
1671
1771
1871
1971
2071
2171
2271
2372
2472
2573
2673
2774
2874
2974
3075
3175

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 65% of days. Sticky, muggy-or-worse air turns up on roughly 86% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
117205814
216195816
316185817
415176017
515175918
614166019
714156119
813156219
903146320
1002146420
1102136520
1202136520
1301136620
1401126720
1501126720
1601126720
1701126720
1801116820
1901116820
2001106920
2100106921
220097021
230096922
240086923
250086824
260076825
270076726
280076726
290076627
300076528
310076528

Wind in December

Winds average 9 km/h in December.

Across December, daily wind ranges from about 8 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
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

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 6:27 AM to 6:38 AM, and sunset from 7:40 PM to 7:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.26:277:40
213.26:277:41
313.26:277:41
413.26:277:42
513.36:277:42
613.36:277:43
713.36:287:44
813.36:287:44
913.36:287:45
1013.36:287:46
1113.36:297:46
1213.36:297:47
1313.36:297:47
1413.36:307:48
1513.36:307:48
1613.36:307:49
1713.36:317:49
1813.36:317:50
1913.36:327:51
2013.36:327:51
2113.36:327:52
2213.36:337:52
2313.36:337:52
2413.36:347:53
2513.36:347:53
2613.36:357:54
2713.36:357:54
2813.36:367:55
2913.36:367:55
3013.36:377:55
3113.36:387:56

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.79 kWh/m².

For context, solar energy here swings from a low near 3.86 kWh/m² to a high of 5.98 kWh/m² in October across the year — December's 5.79 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.8Bright
55.8Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.7Bright
145.8Bright
155.8Bright
165.8Bright
175.8Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.8Bright
265.8Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
315.6Bright
Planning a trip in December

Hazard calendar for Matão

In seasonPeak

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

Matão'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 Matão?

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

3.8
Sightseeing
10th-best month of the year
5.0
Beach & pool
11th-best month of the year

December is a weaker month for outdoor sightseeing in Matão.

What to pack for Matão in December

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

In December, Matão sees daytime highs around 29°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.

light clothesrain gearsun protection

UV index in Matão 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 Matão peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 21UV 15Jun 23UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Very high
May7Very high
Jun6High
Jul6High
Aug8Very high
Sep9Very high
Oct11Extreme
Nov13Extreme
Dec14Extreme

Air quality in Matão 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 Matão is worst in September — around 37 µg/m³ PM2.5 (poor), about 3.6× the cleanest month (November, 10 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModeratePoorModerateGoodSep 1037 µg/m³Nov 2310 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb12Moderate
Mar13Moderate
Apr14Moderate
May16Moderate
Jun17Moderate
Jul18Moderate
Aug35Poor
Sep37Poor
Oct18Moderate
Nov10Good
Dec11Good
Location & terrain

Where is Matão?

Matão sits at 21.6°S, 48.4°W, 574 m above sea level, in Brazil. The nearest listed city is Taquaritinga, 26 km away.

Topography around Matão

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

Within 3 km, the terrain around Matão has only modest variations in elevation — a maximum elevation change of 99 m around an average of 583 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 206 m; within 80 km, significant variations in elevation — a maximum elevation change of 595 m.

The land around Matão is covered by artificial surfaces (45%) and trees (24%) within 3 km, cropland (64%) and trees (24%) within 16 km, and cropland (66%) and trees (21%) within 80 km.

3 km
99 m
16 km
206 m
80 km
595 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Taquaritinga 26 km · Araraquara 29 km · Américo Brasiliense 30 km · Guariba 31 km · Jaboticabal 39 km · Monte Alto 40 km · Pradópolis 41 km · Itápolis 46 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 Matão (-21.6033°, -48.3658°, elevation 574 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).