Igaraçu do Tietê weather in December

In December, Igaraçu do Tietê sees average daytime highs of 29°C and overnight lows near 20°C, with 183 mm of rain across 19.8 wet days and about 13.4 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 17% of the time in December, and the air most often feels muggy.

Daylight stretches from about 13 h 18 min at the start of December to 13 h 24 min by month's end. Set against the rest of the year, December is Igaraçu do Tietê's 11th-clearest and 5th-windiest month. For the whole year in context, see Igaraçu do Tietê's year-round climate.

Daytime high
29°
2nd warmest
Overnight low
20°
10th coldest
Rainfall
183 mm
19.8 wet days
Daylight
13 h 24 min
6:29 AM – 7:52 PM
Cloud cover
70%
11th clearest
Wind
10 km/h
5th windiest
Solar energy
5.91 kWh/m²
Travel score
4.1
out of 10

Igaraçu do Tietê 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 29°C through the month.

A typical December day in Igaraçu do Tietê reaches about 29°C in the afternoon and slips back to 20°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
62920
72920
82920
92920
102920
112920
122920
132920
142920
152920
162920
172920
182920
192920
202920
212920
222920
232920
242920
252920
262920
272921
282921
292921
302921
312921

Igaraçu do Tietê 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
Jan29° / 21°24122.313.23.8
Feb29° / 21°17518.912.83.9
Mar29° / 20°13216.712.24.7
Apr28° / 18°567.411.56.6
May25° / 15°566.210.97.6
Jun25° / 14°404.410.68.1
Jul25° / 14°313.810.88.3
Aug27° / 14°32411.27.9
Sep28° / 16°657.511.96.4
Oct29° / 18°11212.512.55.1
Nov29° / 19°1471513.14.8
Dec29° / 20°18319.813.44.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% 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 65%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13565
23565
33466
43367
53268
63268
73367
83268
93268
103367
113367
123466
133565
143565
153763
163763
173862
183862
193862
203961
213961
223961
233862
243763
253565
263466
273466
283367
293268
303169
313070

Chance of precipitation in December

Any precipitation

Igaraçu do Tietê gets around 183 mm of rain over 19.8 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 64% and peaks near 67% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
157
258
359
460
561
661
762
863
963
1064
1164
1265
1365
1465
1565
1666
1766
1866
1965
2065
2165
2265
2365
2465
2566
2666
2766
2866
2966
3067
3167

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 60% of days. Sticky, muggy-or-worse air turns up on roughly 73% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
121029527
21928548
31927558
41826569
518265510
618255610
717245711
817245711
917235712
1016235812
1116225912
1216225912
1306216013
1405216113
1505216113
1605206114
1705206114
1805206114
1904206214
2004206115
2104196215
2204196215
2303196216
2403186316
2503186217
2602176417
2702176318
2802176219
2902176219
3002166220
3101166320

Wind in December

Winds average 10 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
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 18 min at the start of December to 13 h 24 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 6:26 AM to 6:37 AM, and sunset from 7:42 PM to 7:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.36:267:42
213.36:267:43
313.36:267:44
413.36:267:44
513.36:267:45
613.36:267:46
713.36:277:46
813.36:277:47
913.36:277:47
1013.36:277:48
1113.46:287:49
1213.46:287:49
1313.46:287:50
1413.46:297:50
1513.46:297:51
1613.46:297:52
1713.46:307:52
1813.46:307:53
1913.46:307:53
2013.46:317:54
2113.46:317:54
2213.46:327:55
2313.46:327:55
2413.46:337:56
2513.46:337:56
2613.46:347:56
2713.46:347:57
2813.46:357:57
2913.46:357:58
3013.46:367:58
3113.46:377:58

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.91 kWh/m².

For context, solar energy here swings from a low near 3.64 kWh/m² to a high of 5.98 kWh/m² in November across the year — December's 5.91 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.0Bright
25.9Bright
35.9Bright
45.9Bright
55.9Bright
65.9Bright
75.9Bright
85.8Bright
95.8Bright
105.8Bright
115.8Bright
125.8Bright
135.8Bright
145.9Bright
155.9Bright
165.9Bright
175.9Bright
185.9Bright
195.9Bright
205.9Bright
215.9Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
265.9Bright
275.9Bright
285.8Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in December

Hazard calendar for Igaraçu do Tietê

In seasonPeak

In December, Igaraçu do Tietê sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Igaraçu do Tietê'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 Igaraçu do Tietê?

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

4.1
Sightseeing
10th-best month of the year
5.4
Beach & pool
10th-best month of the year

December is a reasonable time to visit Igaraçu do Tietê for sightseeing.

What to pack for Igaraçu do Tietê in December

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

In December, Igaraçu do Tietê sees daytime highs around 29°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 20 days see rain.

light clothesrain gearsun protection

UV index in Igaraçu do Tietê 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 Igaraçu do Tietê peaks around January 22 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 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 22UV 15Jul 11UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Very high
May7High
Jun6High
Jul6High
Aug8Very high
Sep9Very high
Oct11Extreme
Nov13Extreme
Dec14Extreme

Air quality in Igaraçu do Tietê 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 Igaraçu do Tietê is worst in September — around 22 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (November, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1022 µg/m³Nov 239 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb10Good
Mar10Good
Apr11Good
May13Moderate
Jun14Moderate
Jul14Moderate
Aug22Moderate
Sep22Moderate
Oct17Moderate
Nov9Good
Dec9Good
Location & terrain

Where is Igaraçu do Tietê?

Igaraçu do Tietê sits at 22.5°S, 48.6°W, 496 m above sea level, in Brazil. The nearest listed city is Barra Bonita, 2.0 km away.

Topography around Igaraçu do Tietê

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

Within 3 km, the terrain around Igaraçu do Tietê has only modest variations in elevation — a maximum elevation change of 126 m around an average of 480 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 330 m; within 80 km, large variations in elevation — a maximum elevation change of 679 m.

The land around Igaraçu do Tietê is covered by cropland (32%), artificial surfaces (27%) and trees (20%) within 3 km, cropland (65%) within 16 km, and cropland (44%) and trees (38%) within 80 km.

3 km
126 m
16 km
330 m
80 km
679 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Barra Bonita 2.0 km · Macatuba 16 km · Jaú 24 km · Dois Córregos 24 km · São Manuel 25 km · Lençóis Paulista 27 km · Pederneiras 28 km · Botucatu 43 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 Igaraçu do Tietê (-22.5092°, -48.5578°, elevation 496 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).