Boa Esperança weather in January

In January, Boa Esperança sees average daytime highs of 28°C and overnight lows near 20°C, with 245 mm of rain across 21.8 wet days and about 13.1 hours of daylight. It is the 3rd-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 13% of the time in January, and the air most often feels muggy.

Daylight stretches from about 13 h 18 min at the start of January to 13 hours by month's end. Set against the rest of the year, January is Boa Esperança's 12th-clearest and 7th-windiest month. For the whole year in context, see Boa Esperança's year-round climate.

Daytime high
28°
3rd warmest
Overnight low
20°
12th coldest
Rainfall
245 mm
21.8 wet days
Daylight
13 h 12 min
6:37 AM – 7:46 PM
Cloud cover
77%
12th clearest
Wind
7 km/h
7th windiest
Solar energy
5.59 kWh/m²
Travel score
4.4
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical January day in Boa Esperança reaches about 28°C in the afternoon and slips back to 20°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 31°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)
12820
22820
32820
42820
52820
62820
72820
82820
92820
102820
112820
122820
132820
142820
152820
162820
172820
182820
192820
202820
212820
222820
232820
242820
252820
262820
272820
282820
292820
302820
312820

Boa Esperança weather by month

How January compares with the rest of the year at a glance. January is the 3rd-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 20°24521.813.14.4
Feb28° / 19°14216.912.74.6
Mar28° / 19°15918.412.15.2
Apr27° / 17°588.711.56.7
May24° / 15°405.4117.7
Jun24° / 13°162.710.78.4
Jul24° / 13°12210.88.7
Aug26° / 13°162.811.38.3
Sep27° / 16°597.311.97.0
Oct28° / 18°10012.812.55.7
Nov27° / 18°18619134.9
Dec27° / 19°24322.913.34.4

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 13% of the time in January, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 11% of January, with mostly cloudy or overcast conditions the remaining 76%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12080
22080
32080
42080
52080
62080
72179
82179
92278
102278
112377
122476
132476
142575
152575
162674
172674
182674
192674
202674
212674
222674
232674
242674
252773
262773
272773
282872
292971
302971
312971

Chance of precipitation in January

Any precipitation

Boa Esperança gets around 245 mm of rain over 21.8 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 70% and peaks near 74% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
174
274
373
473
572
672
771
870
970
1069
1169
1269
1369
1469
1569
1669
1769
1870
1970
2070
2170
2270
2370
2470
2570
2670
2769
2869
2968
3067
3167

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 72% of days. Sticky, muggy-or-worse air turns up on roughly 73% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1124741
2124741
3124741
4125731
5125731
6126721
7126721
8127702
9127702
10127702
11128692
12128692
13128692
14127711
15127711
16127711
17226711
18226711
19226711
20225721
21225721
22224731
23224731
24223741
25223741
26123751
27123751
28124741
29124741
30124741
31124732

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 18 min at the start of January to 13 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over January. Sunrise moves from 6:28 AM to 6:47 AM, and sunset from 7:43 PM to 7:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.36:287:43
213.36:287:44
313.36:297:44
413.26:297:44
513.26:307:44
613.26:317:45
713.26:317:45
813.26:327:45
913.26:327:45
1013.26:337:46
1113.26:347:46
1213.26:347:46
1313.26:357:46
1413.26:367:46
1513.26:367:46
1613.26:377:46
1713.16:387:46
1813.16:387:46
1913.16:397:46
2013.16:407:46
2113.16:407:46
2213.16:417:46
2313.16:427:46
2413.16:427:46
2513.06:437:46
2613.06:437:46
2713.06:447:45
2813.06:457:45
2913.06:457:45
3013.06:467:45
3113.06:477:45

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.59 kWh/m².

For context, solar energy here swings from a low near 3.86 kWh/m² to a high of 5.78 kWh/m² in February across the year — January's 5.59 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.6Bright
105.6Bright
115.6Bright
125.6Bright
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
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in January

Hazard calendar for Boa Esperança

In seasonPeak

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

Boa Esperança'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 Boa Esperança?

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

4.4
Sightseeing
11th-best month of the year
4.9
Beach & pool
11th-best month of the year

January is a reasonable time to visit Boa Esperança for sightseeing.

What to pack for Boa Esperança in January

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

In January, Boa Esperança sees daytime highs around 28°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.

light clothesrain gearsun protection

UV index in Boa Esperança 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 Boa Esperança peaks around January 22 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 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 15Jun 21UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Extreme
May8Very high
Jun6High
Jul7High
Aug9Very high
Sep9Very high
Oct12Extreme
Nov14Extreme
Dec14Extreme

Air quality in Boa Esperança 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 Boa Esperança is worst in September — around 23 µg/m³ PM2.5 (moderate), about 3.3× the cleanest month (November, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1622 µg/m³Nov 237 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb8Good
Mar8Good
Apr8Good
May8Good
Jun8Good
Jul8Good
Aug12Good
Sep23Moderate
Oct12Good
Nov7Good
Dec7Good
Location & terrain

Where is Boa Esperança?

Boa Esperança sits at 21.1°S, 45.6°W, 780 m above sea level, in Brazil. The nearest listed city is Campos Gerais, 26 km away.

Topography around Boa Esperança

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

Within 3 km, the terrain around Boa Esperança has only modest variations in elevation — a maximum elevation change of 125 m around an average of 801 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 547 m; within 80 km, large variations in elevation — a maximum elevation change of 728 m.

The land around Boa Esperança is covered by trees (26%), grassland (21%) and artificial surfaces (21%) within 3 km, trees (43%), grassland (31%) and cropland (21%) within 16 km, and grassland (40%) and trees (38%) within 80 km.

3 km
125 m
16 km
547 m
80 km
728 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
January weather nearby: Campos Gerais 26 km · Três Pontas 31 km · Campo Belo 37 km · Nepomuceno 38 km · Perdões 49 km · Varginha 53 km · Paraguaçu 54 km · Alfenas 55 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 Boa Esperança (-21.09°, -45.5658°, elevation 780 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).