Boa Viagem weather in January

In January, Boa Viagem sees average daytime highs of 32°C and overnight lows near 23°C, with 89 mm of rain across 13.8 wet days and about 12.3 hours of daylight. It is the 5th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 22% of the time in January, and the air most often feels muggy.

Daylight stretches from about 12 h 18 min at the start of January to 12 h 12 min by month's end. Set against the rest of the year, January is Boa Viagem's 9th-clearest and 8th-windiest month. For the whole year in context, see Boa Viagem's year-round climate.

Daytime high
32°
5th warmest
Overnight low
23°
11th coldest
Rainfall
89 mm
13.8 wet days
Daylight
12 h 18 min
5:40 AM – 5:56 PM
Cloud cover
66%
9th clearest
Wind
12 km/h
8th windiest
Solar energy
5.64 kWh/m²
Travel score
3.5
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical January day in Boa Viagem reaches about 32°C in the afternoon and slips back to 23°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 35°C. Set against its neighbours, January runs about 1°C cooler than December and about 1°C warmer than February.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13323
23323
33323
43323
53323
63323
73323
83323
93323
103323
113323
123223
133223
143223
153223
163223
173223
183223
193223
203223
213223
223223
233223
243223
253223
263223
273223
283223
293223
303223
313223

How January really feels in Boa Viagem

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.

Boa Viagem weather by month

How January compares with the rest of the year at a glance. January is the 5th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 23°8913.812.33.5
Feb32° / 22°8215.612.23.5
Mar31° / 22°12019.5123.5
Apr30° / 22°1092011.93.7
May30° / 22°6913.211.84.6
Jun30° / 21°318.211.75.3
Jul31° / 21°184.411.75.5
Aug32° / 21°8211.85.1
Sep33° / 22°30.9124.5
Oct34° / 22°90.812.14.0
Nov34° / 23°51.212.23.8
Dec33° / 23°204.612.33.7

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 19% of January, with mostly cloudy or overcast conditions the remaining 59%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
24852
34852
44753
54654
64555
74456
84456
94456
104159
114159
124060
133961
143862
153763
163763
173763
183763
193763
203763
213763
223862
233862
243862
253862
263961
273961
283961
293961
304159
314159

Chance of precipitation in January

Any precipitation

Boa Viagem gets around 89 mm of rain over 13.8 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 44% and peaks near 49% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
131
232
334
435
536
638
739
840
941
1042
1143
1245
1346
1447
1547
1648
1748
1849
1949
2049
2149
2249
2349
2449
2549
2649
2749
2849
2948
3048
3147

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 58% of days. Sticky, muggy-or-worse air turns up on roughly 85% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
11256410
21246411
30236611
40226612
50216613
60206614
70206515
80196516
90186517
100176518
110176320
120166321
130166123
140156124
150155926
160145828
170145729
180135631
190135532
200135334
210125335
220125236
230125137
240115138
250115138
260105139
270105139
280105139
290105238
300105238
31095437

Wind in January

Winds average 12 km/h in January.

Across January, daily wind ranges from about 12 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 12 h 18 min at the start of January to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over January. Sunrise moves from 5:33 AM to 5:46 AM, and sunset from 5:51 PM to 5:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:335:51
212.35:345:51
312.35:345:52
412.35:355:52
512.35:355:52
612.35:365:53
712.35:365:53
812.35:375:54
912.35:375:54
1012.35:385:54
1112.35:385:55
1212.35:385:55
1312.35:395:55
1412.35:395:56
1512.35:405:56
1612.35:405:56
1712.35:415:57
1812.35:415:57
1912.35:415:57
2012.35:425:57
2112.35:425:57
2212.35:435:58
2312.25:435:58
2412.25:435:58
2512.25:445:58
2612.25:445:58
2712.25:445:59
2812.25:455:59
2912.25:455:59
3012.25:455:59
3112.25:465:59

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 4.8 kWh/m² to a high of 6.99 kWh/m² in October across the year — January's 5.64 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.0Bright
25.9Bright
35.9Bright
45.9Bright
55.8Bright
65.8Bright
75.8Bright
85.8Bright
95.7Bright
105.7Bright
115.7Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in January

Hazard calendar for Boa Viagem

In seasonPeak

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

Boa Viagem's rainy season runs January–May, 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 Boa Viagem?

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

3.5
Sightseeing
10th-best month of the year
5.7
Beach & pool
9th-best month of the year

January is a weaker month for outdoor sightseeing in Boa Viagem.

What to pack for Boa Viagem in January

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

In January, Boa Viagem sees daytime highs around 32°C and nights near 23°C. Pack light clothes. Worth having: rain gear and sun protection. About 14 days see rain.

light clothesrain gearsun protection

UV index in Boa Viagem in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 13 (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 Viagem peaks around March 14 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 14UV 15Jun 22UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar16Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul10Extreme
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec12Extreme
Location & terrain

Where is Boa Viagem?

Boa Viagem sits at 5.1°S, 39.7°W, 288 m above sea level, in Brazil. The nearest listed city is Madalena, 35 km away.

Topography around Boa Viagem

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

Within 3 km, the terrain around Boa Viagem has only modest variations in elevation — a maximum elevation change of 64 m around an average of 292 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 437 m; within 80 km, large variations in elevation — a maximum elevation change of 982 m.

The land around Boa Viagem is covered by grassland (50%) and shrubs (37%) within 3 km, shrubs (74%) and grassland (24%) within 16 km, and shrubs (75%) and grassland (21%) within 80 km.

3 km
64 m
16 km
437 m
80 km
982 m
treesshrubsgrasslandcroplandartificial surfaces
January weather nearby: Madalena 35 km · Pedra Branca 36 km · Quixeramobim 49 km · Monsenhor Tabosa 53 km · Senador Pompeu 65 km · Itatira 68 km · Mombaça 69 km · Independência 70 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 Viagem (-5.1275°, -39.7322°, elevation 288 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).