Santa Rosa de Viterbo weather in January

In January, Santa Rosa de Viterbo sees average daytime highs of 29°C and overnight lows near 21°C, with 239 mm of rain across 22.3 wet days and about 13.2 hours of daylight. It is the 5th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 14% 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 Santa Rosa de Viterbo's 12th-clearest and 10th-windiest month. For the whole year in context, see Santa Rosa de Viterbo's year-round climate.

Daytime high
29°
5th warmest
Overnight low
21°
12th coldest
Rainfall
239 mm
22.3 wet days
Daylight
13 h 12 min
6:43 AM – 7:54 PM
Cloud cover
75%
12th clearest
Wind
7 km/h
10th windiest
Solar energy
5.58 kWh/m²
Travel score
3.7
out of 10

Santa Rosa de Viterbo 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 29°C through the month.

A typical January day in Santa Rosa de Viterbo reaches about 29°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)
12921
22921
32921
42921
52921
62921
72921
82921
92921
102921
112921
122921
132921
142921
152921
163021
173021
183021
193021
203021
213021
223021
233021
243021
253021
263021
273021
283021
293021
303021
313021

Santa Rosa de Viterbo weather by month

How January compares with the rest of the year at a glance. January is the 5th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 21°23922.313.23.7
Feb30° / 20°16718.112.73.9
Mar29° / 20°14417.212.24.5
Apr29° / 18°598.311.56.1
May26° / 15°446.1117.5
Jun26° / 14°263.210.78.1
Jul26° / 13°212.410.88.3
Aug28° / 15°192.911.37.6
Sep30° / 17°677.311.95.7
Oct30° / 19°10413.112.54.6
Nov30° / 20°15917134.3
Dec29° / 20°20321.713.33.8

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%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12674
22575
32674
42674
52674
62476
72476
82575
92476
102476
112476
122575
132575
142575
152674
162674
172674
182773
192773
202773
212773
222872
232971
242971
253070
263169
273169
283169
293268
303367
313367

Chance of precipitation in January

Any precipitation

Santa Rosa de Viterbo gets around 239 mm of rain over 22.3 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 71% and peaks near 72% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
172
272
371
471
571
671
771
870
970
1070
1170
1269
1369
1469
1570
1670
1770
1870
1971
2071
2171
2272
2372
2472
2572
2672
2772
2872
2971
3071
3170

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 86% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
10147412
20147412
30147412
40147412
50147313
60147313
70147313
80147313
90147214
100147214
110147214
120157114
130157114
141157014
151147114
161147114
171147114
181137214
191137214
201137214
211127314
222127214
232117314
242117314
252117314
262117314
272117314
282117314
293117214
303117214
313117214

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 6:34 AM to 6:53 AM, and sunset from 7:51 PM to 7:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.36:347:51
213.36:357:52
313.36:357:52
413.36:367:52
513.36:367:52
613.36:377:53
713.36:387:53
813.26:387:53
913.26:397:53
1013.26:407:53
1113.26:407:54
1213.26:417:54
1313.26:417:54
1413.26:427:54
1513.26:437:54
1613.26:437:54
1713.26:447:54
1813.26:457:54
1913.16:457:54
2013.16:467:54
2113.16:477:54
2213.16:477:54
2313.16:487:54
2413.16:497:54
2513.16:497:54
2613.16:507:53
2713.06:517:53
2813.06:517:53
2913.06:527:53
3013.06:537:53
3113.06:537:52

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.58 kWh/m².

For context, solar energy here swings from a low near 3.9 kWh/m² to a high of 5.99 kWh/m² in October across the year — January's 5.58 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.6Bright
55.6Bright
65.6Bright
75.6Bright
85.6Bright
95.6Bright
105.6Bright
115.6Bright
125.6Bright
135.6Bright
145.6Bright
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
305.7Bright
315.7Bright
Planning a trip in January

Hazard calendar for Santa Rosa de Viterbo

In seasonPeak

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

Santa Rosa de Viterbo'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 Santa Rosa de Viterbo?

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

3.7
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 Rosa de Viterbo.

What to pack for Santa Rosa de Viterbo in January

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

In January, Santa Rosa de Viterbo sees daytime highs around 29°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.

light clothesrain gearsun protection

UV index in Santa Rosa de Viterbo 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 Rosa de Viterbo 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
Feb15Extreme
Mar13Extreme
Apr10Very high
May7Very high
Jun6High
Jul6High
Aug8Very high
Sep9Very high
Oct11Extreme
Nov14Extreme
Dec14Extreme

Air quality in Santa Rosa de Viterbo 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 Rosa de Viterbo is worst in September — around 32 µg/m³ PM2.5 (moderate), about 3.2× the cleanest month (November, 10 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1430 µg/m³Nov 2310 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb12Good
Mar12Good
Apr13Moderate
May15Moderate
Jun15Moderate
Jul16Moderate
Aug23Moderate
Sep32Moderate
Oct16Moderate
Nov10Good
Dec10Good
Location & terrain

Where is Santa Rosa de Viterbo?

Santa Rosa de Viterbo sits at 21.5°S, 47.4°W, 677 m above sea level, in Brazil. The nearest listed city is Cajuru, 23 km away.

Topography around Santa Rosa de Viterbo

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Santa Rosa de Viterbo.

Within 3 km, the terrain around Santa Rosa de Viterbo has only modest variations in elevation — a maximum elevation change of 229 m around an average of 688 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 379 m; within 80 km, large variations in elevation — a maximum elevation change of 1,085 m.

The land around Santa Rosa de Viterbo is covered by trees (35%) and cropland (33%) within 3 km, cropland (41%) and trees (40%) within 16 km, and cropland (45%) and trees (36%) within 80 km.

3 km
229 m
16 km
379 m
80 km
1,085 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Cajuru 23 km · Tambaú 27 km · Santa Rita do Passa Quatro 29 km · Mococa 37 km · Serrana 38 km · Cravinhos 41 km · Santa Cruz das Palmeiras 41 km · Casa Branca 44 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 Rosa de Viterbo (-21.4728°, -47.3631°, elevation 677 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).