Tietê weather in January

In January, Tietê sees average daytime highs of 30°C and overnight lows near 21°C, with 246 mm of rain across 22.4 wet days and about 13.3 hours of daylight. It is the 2nd-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 15% of the time in January, and the air most often feels muggy.

Daylight stretches from about 13 h 24 min at the start of January to 13 h 06 min by month's end. Set against the rest of the year, January is Tietê's 12th-clearest and 9th-windiest month. For the whole year in context, see Tietê's year-round climate.

Daytime high
30°
2nd warmest
Overnight low
21°
12th coldest
Rainfall
246 mm
22.4 wet days
Daylight
13 h 18 min
6:42 AM – 7:58 PM
Cloud cover
74%
12th clearest
Wind
8 km/h
9th windiest
Solar energy
5.66 kWh/m²
Travel score
3.6
out of 10

Tietê is human settlement in Brazil.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical January day in Tietê reaches about 30°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 33°C. Set against its neighbours, January runs on par with December and on par with February.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13021
23021
33021
43021
53021
63021
73021
83021
93021
103021
113021
123021
133021
143021
153021
163021
173021
183021
193021
203021
213021
223021
233021
243021
253021
263021
273021
283021
293021
303021
313021

How January really feels in Tietê

Once humidity and wind are folded in, January averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

January sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Tietê weather by month

How January compares with the rest of the year at a glance. January is the 2nd-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 21°24622.413.33.6
Feb30° / 21°16918.312.83.8
Mar30° / 20°12816.712.24.5
Apr28° / 18°537.311.56.3
May26° / 15°556.310.97.4
Jun25° / 14°424.910.68.0
Jul25° / 13°344.210.78.1
Aug27° / 14°344.211.27.7
Sep28° / 16°687.911.96.2
Oct29° / 18°10312.212.55.0
Nov29° / 19°14014.713.14.6
Dec30° / 20°18719.513.43.9

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 15% of the time in January, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 16% of January, with mostly cloudy or overcast conditions the remaining 69%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13367
23268
33169
42971
52971
62971
72971
82971
92971
102971
112971
122971
132971
142971
153070
163070
173070
183070
193169
203169
213169
223070
233169
243169
253169
263268
273367
283466
293466
303466
313565

Chance of precipitation in January

Any precipitation

Tietê gets around 246 mm of rain over 22.4 wet days in January, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 71% and peaks near 72% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
166
267
368
468
569
670
771
872
972
1072
1172
1272
1372
1472
1572
1672
1772
1872
1972
2072
2172
2272
2372
2472
2572
2672
2772
2872
2971
3071
3171

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the muggy band about 52% of days. Sticky, muggy-or-worse air turns up on roughly 85% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
102175526
202165626
302165527
402155528
501145629
601135729
701125730
801125730
901115731
1001115731
1101115632
1201115632
1301115533
1401115533
1501115533
1601125334
1701125334
1801125334
1901135135
2001135135
2102134936
2202134936
2302134836
2412134737
2512134737
2612134737
2713134737
2813124737
2913124737
3013124737
3114124737

Wind in January

Winds average 8 km/h in January.

Across January, 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
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 13 h 24 min at the start of January to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over January. Sunrise moves from 6:32 AM to 6:52 AM, and sunset from 7:56 PM to 7:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.46:327:56
213.46:337:56
313.46:337:57
413.46:347:57
513.46:357:57
613.46:357:57
713.46:367:57
813.46:367:58
913.36:377:58
1013.36:387:58
1113.36:387:58
1213.36:397:58
1313.36:407:58
1413.36:407:58
1513.36:417:58
1613.36:427:58
1713.36:437:58
1813.36:437:58
1913.26:447:58
2013.26:457:58
2113.26:457:58
2213.26:467:58
2313.26:477:58
2413.26:477:58
2513.26:487:58
2613.16:497:58
2713.16:497:57
2813.16:507:57
2913.16:517:57
3013.16:517:57
3113.16:527:56

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.66 kWh/m².

For context, solar energy here swings from a low near 3.54 kWh/m² to a high of 6.02 kWh/m² in November across the year — January's 5.66 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.8Bright
55.8Bright
65.8Bright
75.8Bright
85.8Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.7Bright
145.7Bright
155.7Bright
165.7Bright
175.7Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
315.8Bright
Planning a trip in January

Hazard calendar for Tietê

In seasonPeak

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

Tietê's rainy season runs November–March, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is January a good time to visit Tietê?

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

3.6
Sightseeing
12th-best month of the year
4.9
Beach & pool
12th-best month of the year

January is a weaker month for outdoor sightseeing in Tietê.

What to pack for Tietê in January

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

In January, Tietê sees daytime highs around 30°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 Tietê in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 15 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tietê peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 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 21UV 15Jul 12UV 5
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar11Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug8Very high
Sep8Very high
Oct11Extreme
Nov13Extreme
Dec13Extreme

Air quality in Tietê in January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.

Air quality in Tietê is worst in September — around 22 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (November, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodSep 922 µg/m³Nov 2312 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb13Moderate
Mar13Moderate
Apr14Moderate
May17Moderate
Jun20Moderate
Jul21Moderate
Aug22Moderate
Sep22Moderate
Oct17Moderate
Nov12Good
Dec12Good
Location & terrain

Where is Tietê?

Tietê sits at 23.1°S, 47.7°W, 513 m above sea level, in Brazil. The nearest listed city is Cerquilho, 8.0 km away.

Topography around Tietê

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

Within 3 km, the terrain around Tietê has only modest variations in elevation — a maximum elevation change of 100 m around an average of 503 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 187 m; within 80 km, large variations in elevation — a maximum elevation change of 845 m.

The land around Tietê is covered by grassland (31%), trees (26%) and artificial surfaces (25%) within 3 km, cropland (44%), grassland (31%) and trees (20%) within 16 km, and trees (35%), cropland (30%) and grassland (27%) within 80 km.

3 km
100 m
16 km
187 m
80 km
845 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Cerquilho 8.0 km · Laranjal Paulista 14 km · Boituva 21 km · Porto Feliz 23 km · Capivari 24 km · Iperó 28 km · Cesário Lange 28 km · Rio das Pedras 31 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 Tietê (-23.1019°, -47.7147°, elevation 513 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).