Barretos weather in January

In January, Barretos sees average daytime highs of 30°C and overnight lows near 22°C, with 259 mm of rain across 23.1 wet days and about 13.1 hours of daylight. It is the 8th-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 14% of the time in January, and the air most often feels oppressive.

Daylight stretches from about 13 h 12 min at the start of January to 12 h 54 min by month's end. Set against the rest of the year, January is Barretos's 12th-clearest and 10th-windiest month. For the whole year in context, see Barretos's year-round climate.

Daytime high
30°
8th warmest
Overnight low
22°
12th coldest
Rainfall
259 mm
23.1 wet days
Daylight
13 h 06 min
6:50 AM – 7:57 PM
Cloud cover
76%
12th clearest
Wind
7 km/h
10th windiest
Solar energy
5.7 kWh/m²
Travel score
3.4
out of 10

Barretos 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 Barretos reaches about 30°C in the afternoon and slips back to 22°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 33°C. Set against its neighbours, January runs on par with December and on par with February.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13022
23022
33022
43022
53022
63022
73022
83022
93022
103022
113022
123022
133022
143022
153022
163022
173022
183022
193022
203022
213022
223022
233022
243022
253022
263022
273022
283022
293022
303022
313022

How January really feels in Barretos

Once humidity and wind are folded in, January 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 January is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Barretos weather by month

How January compares with the rest of the year at a glance. January is the 8th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 22°25923.113.13.4
Feb30° / 22°18819.312.73.6
Mar30° / 21°17119.512.13.9
Apr30° / 20°638.511.55.4
May28° / 17°355.1117.2
Jun27° / 16°212.610.88.0
Jul28° / 16°131.710.97.9
Aug30° / 17°152.311.36.3
Sep32° / 19°556.411.94.8
Oct32° / 21°10512.412.53.9
Nov31° / 21°16017.8133.7
Dec30° / 22°22622.713.23.4

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% of the time in January, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 13% of January, with mostly cloudy or overcast conditions the remaining 73%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12872
22773
32674
42575
52575
62476
72476
82575
92575
102476
112476
122476
132575
142575
152674
162674
172773
182773
192773
202872
212872
222872
232872
242971
252971
262971
273070
283070
293169
303169
313169

Chance of precipitation in January

Any precipitation

Barretos gets around 259 mm of rain over 23.1 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 74% and peaks near 76% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
176
276
376
476
575
675
775
875
974
1074
1174
1273
1373
1473
1573
1673
1773
1874
1974
2074
2174
2274
2374
2474
2574
2674
2774
2874
2973
3073
3173

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the oppressive band about 53% of days. Sticky, muggy-or-worse air turns up on roughly 96% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1034848
2034849
3034750
4044650
5044551
6044551
7044551
8044452
9044452
10044452
11044452
12044452
13044452
14044353
15044353
16044353
17044254
18044254
19044155
20044056
21044056
22043957
23043957
24043957
25143857
26143857
27143857
28143857
29143857
30143857
31243856

Wind in January

Winds average 7 km/h in January.

Across January, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 13 h 12 min at the start of January to 12 h 54 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 6:41 AM to 6:59 AM, and sunset from 7:54 PM to 7:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.26:417:54
213.26:417:55
313.26:427:55
413.26:427:55
513.26:437:55
613.26:447:56
713.26:447:56
813.26:457:56
913.26:457:56
1013.26:467:57
1113.26:477:57
1213.26:477:57
1313.16:487:57
1413.16:497:57
1513.16:497:57
1613.16:507:57
1713.16:517:57
1813.16:517:57
1913.16:527:57
2013.16:537:57
2113.16:537:57
2213.16:547:57
2313.06:547:57
2413.06:557:57
2513.06:567:57
2613.06:567:57
2713.06:577:57
2813.06:587:56
2913.06:587:56
3013.06:597:56
3112.96:597:56

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.7 kWh/m².

For context, solar energy here swings from a low near 4 kWh/m² to a high of 6.14 kWh/m² in October across the year — January's 5.7 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.7Bright
145.7Bright
155.8Bright
165.8Bright
175.8Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.8Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
315.9Bright
Planning a trip in January

Hazard calendar for Barretos

In seasonPeak

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

Barretos'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 January a good time to visit Barretos?

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

3.4
Sightseeing
11th-best month of the year
4.7
Beach & pool
12th-best month of the year

January is a weaker month for outdoor sightseeing in Barretos.

What to pack for Barretos in January

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

In January, Barretos sees daytime highs around 30°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 23 days see rain.

light clothesrain gearsun protection

UV index in Barretos 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 Barretos peaks around January 23 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 23UV 15Jun 21UV 7
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Extreme
May8Very high
Jun7High
Jul7High
Aug9Very high
Sep10Very high
Oct11Extreme
Nov14Extreme
Dec14Extreme

Air quality in Barretos 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 Barretos is worst in September — around 34 µg/m³ PM2.5 (moderate), about 4.9× the cleanest month (November, 7 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1533 µg/m³Nov 227 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb9Good
Mar9Good
Apr9Good
May10Good
Jun10Good
Jul9Good
Aug21Moderate
Sep34Moderate
Oct18Moderate
Nov7Good
Dec8Good
Location & terrain

Where is Barretos?

Barretos sits at 20.6°S, 48.6°W, 538 m above sea level, in Brazil. The nearest listed city is Colina, 18 km away.

Topography around Barretos

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

Within 3 km, the terrain around Barretos has only modest variations in elevation — a maximum elevation change of 92 m around an average of 551 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 191 m; within 80 km, significant variations in elevation — a maximum elevation change of 431 m.

The land around Barretos is covered by artificial surfaces (61%) within 3 km, cropland (69%) and trees (20%) within 16 km, and cropland (72%) within 80 km.

3 km
92 m
16 km
191 m
80 km
431 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Colina 18 km · Guaíra 38 km · Monte Azul Paulista 40 km · Olímpia 41 km · Bebedouro 45 km · Viradouro 45 km · Morro Agudo 56 km · Pitangueiras 62 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 Barretos (-20.5572°, -48.5678°, elevation 538 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).