Santa Bárbara d'Oeste weather in January

In January, Santa Bárbara d'Oeste sees average daytime highs of 30°C and overnight lows near 21°C, with 266 mm of rain across 22.5 wet days and about 13.2 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 16% 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 Santa Bárbara d'Oeste's 12th-clearest and 9th-windiest month. For the whole year in context, see Santa Bárbara d'Oeste's year-round climate.

Daytime high
30°
2nd warmest
Overnight low
21°
12th coldest
Rainfall
266 mm
22.5 wet days
Daylight
13 h 18 min
6:41 AM – 7:57 PM
Cloud cover
74%
12th clearest
Wind
8 km/h
9th windiest
Solar energy
5.64 kWh/m²
Travel score
3.6
out of 10

Santa Bárbara d'Oeste 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 Santa Bárbara d'Oeste 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

Santa Bárbara d'Oeste 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°26622.513.23.6
Feb30° / 21°18718.612.83.8
Mar29° / 20°14717.112.24.5
Apr28° / 18°607.711.56.3
May26° / 15°566.210.97.5
Jun25° / 14°404.610.68.0
Jul25° / 13°35410.78.1
Aug27° / 14°32411.27.7
Sep29° / 16°708.111.96.1
Oct29° / 18°11512.612.55.0
Nov29° / 19°16015.413.14.6
Dec30° / 20°2082013.43.9

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% of the time in January, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 14% of January, with mostly cloudy or overcast conditions the remaining 70%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12971
22971
32971
42872
52872
62773
72872
82872
92872
102872
112872
122971
132971
142971
152971
163070
173169
183169
193169
203169
213070
223169
233169
243169
253169
263268
273367
283466
293466
303565
313565

Chance of precipitation in January

Any precipitation

Santa Bárbara d'Oeste gets around 266 mm of rain over 22.5 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 72% and peaks near 73% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
168
268
369
469
570
671
771
871
972
1072
1172
1272
1372
1472
1572
1672
1772
1872
1973
2073
2173
2273
2373
2473
2573
2673
2773
2872
2972
3072
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 55% 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 (%)
101156024
201155925
301146025
401145926
501135927
601135927
701125928
801125829
901125829
1001125730
1101125730
1201125631
1301125631
1401125532
1501125532
1601125532
1701125532
1801125532
1901125433
2001135333
2101135333
2202135233
2312135133
2412135034
2512135034
2612135034
2712125233
2812125233
2912125233
3023115133
3123115133

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

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
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 6:51 AM, and sunset from 7:54 PM to 7:55 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.46:327:54
213.46:327:54
313.46:337:55
413.46:337:55
513.46:347:55
613.36:357:55
713.36:357:56
813.36:367:56
913.36:377:56
1013.36:377:56
1113.36:387:56
1213.36:397:56
1313.36:397:56
1413.36:407:57
1513.36:417:57
1613.36:417:57
1713.26:427:57
1813.26:437:57
1913.26:437:57
2013.26:447:57
2113.26:457:56
2213.26:457:56
2313.26:467:56
2413.26:477:56
2513.16:477:56
2613.16:487:56
2713.16:497:56
2813.16:497:55
2913.16:507:55
3013.16:517:55
3113.16:517:55

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.64 kWh/m².

For context, solar energy here swings from a low near 3.62 kWh/m² to a high of 6.02 kWh/m² in November across the year — January's 5.64 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.8Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
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
305.8Bright
315.8Bright
Planning a trip in January

Hazard calendar for Santa Bárbara d'Oeste

In seasonPeak

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

Santa Bárbara d'Oeste'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 Santa Bárbara d'Oeste?

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 Santa Bárbara d'Oeste.

What to pack for Santa Bárbara d'Oeste in January

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

In January, Santa Bárbara d'Oeste sees daytime highs around 30°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 23 days see rain.

light clothesrain gearsun protection

UV index in Santa Bárbara d'Oeste 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 Santa Bárbara d'Oeste peaks around January 20 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 20UV 15Jul 12UV 5
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug8Very high
Sep8Very high
Oct11Extreme
Nov13Extreme
Dec13Extreme

Air quality in Santa Bárbara d'Oeste 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 Santa Bárbara d'Oeste is worst in September — around 32 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (December, 16 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateSep 1032 µg/m³Dec 1516 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb17Moderate
Mar19Moderate
Apr22Moderate
May26Moderate
Jun28Moderate
Jul30Moderate
Aug31Moderate
Sep32Moderate
Oct22Moderate
Nov16Moderate
Dec16Moderate
Location & terrain

Where is Santa Bárbara d'Oeste?

Santa Bárbara d'Oeste sits at 22.8°S, 47.4°W, 565 m above sea level, in Brazil. The nearest listed city is Americana, 9.0 km away.

Topography around Santa Bárbara d'Oeste

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Santa Bárbara d'Oeste.

Within 3 km, the terrain around Santa Bárbara d'Oeste has only modest variations in elevation — a maximum elevation change of 100 m around an average of 560 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 173 m; within 80 km, large variations in elevation — a maximum elevation change of 845 m.

The land around Santa Bárbara d'Oeste is covered by artificial surfaces (48%) and trees (21%) within 3 km, cropland (45%) and trees (23%) within 16 km, and cropland (35%), trees (32%) and grassland (25%) within 80 km.

3 km
100 m
16 km
173 m
80 km
845 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Americana 9.0 km · Nova Odessa 12 km · Sumaré 17 km · Limeira 21 km · Iracemápolis 22 km · Rio das Pedras 22 km · Hortolândia 23 km · Monte Mor 24 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 Santa Bárbara d'Oeste (-22.7536°, -47.4136°, elevation 565 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).