Bom Jardim weather in January

In January, Bom Jardim sees average daytime highs of 27°C and overnight lows near 19°C, with 333 mm of rain across 22.6 wet days and about 13.2 hours of daylight. It is the 2nd-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°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 Bom Jardim's 10th-clearest and 6th-windiest month. For the whole year in context, see Bom Jardim's year-round climate.

Daytime high
27°
2nd warmest
Overnight low
19°
12th coldest
Rainfall
333 mm
22.6 wet days
Daylight
13 h 12 min
6:22 AM – 7:36 PM
Cloud cover
77%
10th clearest
Wind
6 km/h
6th windiest
Solar energy
5.79 kWh/m²
Travel score
4.5
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical January day in Bom Jardim reaches about 27°C in the afternoon and slips back to 19°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 30°C. Set against its neighbours, January runs about 1°C warmer than December and on par with February.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12719
22719
32719
42719
52719
62719
72719
82719
92719
102719
112719
122719
132719
142719
152719
162719
172719
182719
192719
202719
212719
222719
232719
242719
252719
262719
272719
282719
292719
302719
312719

Bom Jardim weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 19°33322.613.24.5
Feb27° / 19°23118.412.84.8
Mar26° / 18°25222.812.24.6
Apr25° / 17°12916.511.55.7
May23° / 14°8112.9116.4
Jun22° / 13°438.310.77.1
Jul22° / 13°42810.87.2
Aug23° / 13°50911.27.1
Sep23° / 15°11713.611.96.3
Oct24° / 16°17918.312.55.5
Nov25° / 17°31022.413.14.6
Dec26° / 18°35224.313.34.4

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 13% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 12% of January, with mostly cloudy or overcast conditions the remaining 75%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12377
22377
32377
42377
52377
62476
72476
82476
92476
102476
112476
122476
132476
142575
152575
162575
172575
182476
192377
202377
212575
222575
232575
242674
252674
262872
272971
282971
293070
303169
313268

Chance of precipitation in January

Any precipitation

Bom Jardim gets around 333 mm of rain over 22.6 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 72% and peaks near 79% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
179
278
377
476
575
675
774
873
973
1072
1172
1271
1371
1471
1571
1671
1772
1872
1972
2072
2172
2272
2372
2471
2571
2671
2770
2870
2969
3069
3168

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 75% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1123733
2124723
3124723
4124723
5025723
6025732
7025732
8025732
9026722
10026722
11026722
12026722
13026722
14026722
15126712
16126703
17125713
18125713
19125713
20124723
21124723
22124714
23123724
24123724
25122734
26022744
27022744
28021754
29021754
30021754
31021754

Wind in January

Winds average 6 km/h in January.

Across January, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

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 6:13 AM to 6:32 AM, and sunset from 7:33 PM to 7:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.36:137:33
213.36:137:33
313.36:147:33
413.36:157:34
513.36:157:34
613.36:167:34
713.36:177:34
813.36:177:35
913.36:187:35
1013.36:187:35
1113.36:197:35
1213.36:207:35
1313.26:207:35
1413.26:217:35
1513.26:227:35
1613.26:227:36
1713.26:237:36
1813.26:247:36
1913.26:247:35
2013.26:257:35
2113.26:267:35
2213.16:267:35
2313.16:277:35
2413.16:287:35
2513.16:287:35
2613.16:297:35
2713.16:307:35
2813.16:307:34
2913.16:317:34
3013.06:327:34
3113.06:327:34

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.79 kWh/m².

For context, solar energy here swings from a low near 3.51 kWh/m² to a high of 6.01 kWh/m² in February across the year — January's 5.79 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.8Bright
55.8Bright
65.8Bright
75.8Bright
85.8Bright
95.8Bright
105.8Bright
115.8Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.8Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
265.9Bright
275.9Bright
285.9Bright
296.0Bright
306.0Bright
316.0Bright
Planning a trip in January

Hazard calendar for Bom Jardim

In seasonPeak

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

Bom Jardim's rainy season runs October–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 Bom Jardim?

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

4.5
Sightseeing
11th-best month of the year
4.6
Beach & pool
9th-best month of the year

January is a reasonable time to visit Bom Jardim for sightseeing.

What to pack for Bom Jardim in January

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

In January, Bom Jardim sees daytime highs around 27°C and nights near 19°C. Pack rain gear. Worth having: light clothes and sun protection. About 23 days see rain.

rain gearlight clothessun protection

UV index in Bom Jardim 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 Bom Jardim peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 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 21UV 15Jul 10UV 6
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar13Extreme
Apr10Very high
May7High
Jun6High
Jul6High
Aug8Very high
Sep8Very high
Oct12Extreme
Nov14Extreme
Dec14Extreme

Air quality in Bom Jardim 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 Bom Jardim is worst in September — around 19 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (March, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1518 µg/m³Mar 1110 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar10Good
Apr12Good
May15Moderate
Jun16Moderate
Jul15Moderate
Aug15Moderate
Sep19Moderate
Oct13Moderate
Nov11Good
Dec10Good
Location & terrain

Where is Bom Jardim?

Bom Jardim sits at 22.2°S, 42.4°W, 584 m above sea level, in Brazil. The nearest listed city is Cordeiro, 15 km away.

Topography around Bom Jardim

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

Within 3 km, the terrain around Bom Jardim has significant variations in elevation — a maximum elevation change of 335 m around an average of 677 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,151 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,252 m.

The land around Bom Jardim is covered by trees (64%) and grassland (31%) within 3 km, trees (60%) and grassland (39%) within 16 km, and grassland (48%) and trees (46%) within 80 km.

3 km
335 m
16 km
1,151 m
80 km
2,252 m
treesgrasslandartificial surfaceswaterwetland
January weather nearby: Cordeiro 15 km · Nova Friburgo 18 km · Cantagalo 20 km · Sumidouro 29 km · Carmo 31 km · Além Paraíba 42 km · Cachoeiras de Macacu 42 km · Casimiro de Abreu 43 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 Bom Jardim (-22.1519°, -42.4194°, elevation 584 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).