Serrana weather in January

In January, Serrana sees average daytime highs of 29°C and overnight lows near 20°C, with 269 mm of rain across 23.5 wet days and about 13.1 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 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 Serrana's 12th-clearest and 9th-windiest month. For the whole year in context, see Serrana's year-round climate.

Daytime high
29°
5th warmest
Overnight low
20°
12th coldest
Rainfall
269 mm
23.5 wet days
Daylight
13 h 12 min
6:45 AM – 7:54 PM
Cloud cover
76%
12th clearest
Wind
7 km/h
9th windiest
Solar energy
5.57 kWh/m²
Travel score
3.6
out of 10

Serrana is central town of Serrana Municipality, 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 Serrana reaches about 29°C in the afternoon and slips back to 20°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)
12920
22920
32920
42920
52920
62920
72920
82920
92920
102920
112920
122920
132920
142920
152920
162920
172920
182920
192920
202920
212920
222920
232920
242920
252920
262920
272920
282920
292920
302920
312920

Serrana 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° / 20°26923.513.13.6
Feb29° / 20°18818.812.73.9
Mar29° / 20°16618.912.14.4
Apr28° / 18°689.311.56.0
May26° / 15°475.7117.5
Jun26° / 14°273.110.78.2
Jul26° / 14°192.410.88.3
Aug28° / 15°19311.37.5
Sep30° / 18°697.411.95.6
Oct30° / 19°11613.212.54.6
Nov29° / 20°17217.5134.3
Dec29° / 20°23022.913.33.8

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 13% of January, with mostly cloudy or overcast conditions the remaining 74%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12575
22575
32476
42377
52377
62377
72377
82377
92377
102377
112377
122476
132476
142575
152575
162575
172674
182674
192674
202674
212674
222872
232872
242971
252971
263070
273070
283070
293169
303169
313169

Chance of precipitation in January

Any precipitation

Serrana gets around 269 mm of rain over 23.5 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 75% and peaks near 77% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
177
277
377
477
577
677
776
876
976
1076
1175
1275
1375
1475
1574
1675
1775
1875
1975
2075
2175
2275
2375
2475
2575
2675
2775
2874
2974
3074
3173

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 74% of days. Sticky, muggy-or-worse air turns up on roughly 88% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
10117712
20117712
30117613
40117613
50117613
60127414
70127414
80127414
90127414
100137215
110137215
121137115
131137115
141137115
151137115
161127215
171127215
181127215
191117315
201117315
211107415
222107315
232107414
242107414
25297514
26297514
27297514
28297514
29297514
30297514
31397414

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 6:35 AM to 6:55 AM, and sunset from 7:52 PM to 7:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.36:357:52
213.36:367:52
313.36:377:52
413.36:377:53
513.26:387:53
613.26:387:53
713.26:397:53
813.26:407:53
913.26:407:54
1013.26:417:54
1113.26:427:54
1213.26:427:54
1313.26:437:54
1413.26:447:54
1513.26:447:54
1613.26:457:54
1713.26:467:55
1813.16:467:55
1913.16:477:55
2013.16:477:55
2113.16:487:54
2213.16:497:54
2313.16:497:54
2413.16:507:54
2513.16:517:54
2613.06:517:54
2713.06:527:54
2813.06:537:54
2913.06:537:53
3013.06:547:53
3113.06:557:53

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.57 kWh/m².

For context, solar energy here swings from a low near 3.92 kWh/m² to a high of 5.99 kWh/m² in October across the year — January's 5.57 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
155.6Bright
165.6Bright
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 Serrana

In seasonPeak

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

Serrana'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 Serrana?

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

3.6
Sightseeing
12th-best month of the year
4.8
Beach & pool
12th-best month of the year

January is a weaker month for outdoor sightseeing in Serrana.

What to pack for Serrana in January

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

In January, Serrana sees daytime highs around 29°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 24 days see rain.

light clothesrain gearsun protection

UV index in Serrana 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 Serrana peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 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 21UV 15Jun 22UV 7
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Very high
May8Very high
Jun7High
Jul7High
Aug9Very high
Sep10Very high
Oct11Extreme
Nov14Extreme
Dec14Extreme

Air quality in Serrana 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 Serrana is worst in September — around 43 µg/m³ PM2.5 (poor), about 5.2× the cleanest month (November, 8 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodSep 1540 µg/m³Nov 229 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb10Good
Mar10Good
Apr11Good
May12Good
Jun11Good
Jul11Good
Aug20Moderate
Sep43Poor
Oct15Moderate
Nov8Good
Dec9Good
Location & terrain

Where is Serrana?

Serrana sits at 21.2°S, 47.6°W, 560 m above sea level, in Brazil. The nearest listed city is Cravinhos, 20 km away.

Topography around Serrana

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

Within 3 km, the terrain around Serrana has only modest variations in elevation — a maximum elevation change of 187 m around an average of 585 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 365 m; within 80 km, large variations in elevation — a maximum elevation change of 785 m.

The land around Serrana is covered by cropland (51%) and artificial surfaces (20%) within 3 km, cropland (59%) and trees (27%) within 16 km, and cropland (55%) and trees (31%) within 80 km.

3 km
187 m
16 km
365 m
80 km
785 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Cravinhos 20 km · Ribeirão Preto 23 km · Brodowski 25 km · Jardinópolis 28 km · Altinópolis 31 km · Cajuru 31 km · Batatais 36 km · Santa Rosa de Viterbo 38 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 Serrana (-21.2114°, -47.5956°, elevation 560 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).