Alumínio weather in January

In January, Alumínio sees average daytime highs of 28°C and overnight lows near 19°C, with 229 mm of rain across 22.3 wet days and about 13.3 hours of daylight. It is the 2nd-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 12% of the time in January, and the air most often feels muggy.

Daylight stretches from about 13 h 24 min at the start of January to 13 h 06 min by month's end. Set against the rest of the year, January is Alumínio's 12th-clearest and 9th-windiest month. For the whole year in context, see Alumínio's year-round climate.

Daytime high
28°
2nd warmest
Overnight low
19°
12th coldest
Rainfall
229 mm
22.3 wet days
Daylight
13 h 18 min
6:39 AM – 7:57 PM
Cloud cover
76%
12th clearest
Wind
10 km/h
9th windiest
Solar energy
5.51 kWh/m²
Travel score
4.4
out of 10

Alumínio 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 28°C through the month.

A typical January day in Alumínio reaches about 28°C in the afternoon and slips back to 19°C overnight — a 9°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)
12819
22819
32819
42819
52819
62819
72819
82819
92819
102819
112819
122819
132819
142819
152819
162819
172819
182819
192819
202819
212819
222819
232819
242819
252819
262819
272819
282819
292819
302819
312819

Alumínio weather by month

How January compares with the rest of the year at a glance. January is the 2nd-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 19°22922.313.34.4
Feb28° / 19°16118.812.84.4
Mar28° / 19°12617.712.25.3
Apr26° / 17°608.511.56.9
May24° / 14°596.910.97.4
Jun23° / 13°485.310.67.7
Jul23° / 12°454.910.77.9
Aug24° / 13°374.711.28.1
Sep26° / 15°82911.97.0
Oct26° / 17°10913.112.66.0
Nov27° / 17°14115.613.15.5
Dec28° / 19°17920.113.44.8

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% of the time in January, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 15% of January, with mostly cloudy or overcast conditions the remaining 73%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12773
22773
32575
42476
52476
62377
72377
82476
92476
102476
112575
122575
132674
142674
152773
162773
172773
182773
192872
202872
212872
222872
232872
242971
252872
262872
272971
283070
293070
303169
313169

Chance of precipitation in January

Any precipitation

Alumínio gets around 229 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 73% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
169
270
370
471
571
672
772
873
973
1073
1173
1273
1373
1472
1572
1672
1772
1871
1971
2071
2171
2271
2370
2470
2570
2670
2770
2870
2970
3070
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 69% of days. Sticky, muggy-or-worse air turns up on roughly 74% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1527626
2426646
3425656
4425656
5424666
6423676
7423676
8322696
9322696
10321706
11421696
12421696
13421705
14422695
15422695
16422695
17422695
18422695
19423685
20422704
21422704
22422704
23422704
24521695
25521695
26520705
27520705
28519715
29518725
30518725
31518725

Wind in January

Winds average 10 km/h in January.

Across January, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 13 h 24 min at the start of January to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over January. Sunrise moves from 6:29 AM to 6:50 AM, and sunset from 7:55 PM to 7:55 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.46:297:55
213.46:307:55
313.46:317:56
413.46:317:56
513.46:327:56
613.46:327:56
713.46:337:57
813.46:347:57
913.46:347:57
1013.46:357:57
1113.46:367:57
1213.36:367:57
1313.36:377:57
1413.36:387:57
1513.36:397:57
1613.36:397:57
1713.36:407:57
1813.36:417:57
1913.36:417:57
2013.36:427:57
2113.26:437:57
2213.26:437:57
2313.26:447:57
2413.26:457:57
2513.26:467:57
2613.26:467:56
2713.26:477:56
2813.16:487:56
2913.16:487:56
3013.16:497:55
3113.16:507:55

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.51 kWh/m².

For context, solar energy here swings from a low near 3.43 kWh/m² to a high of 5.85 kWh/m² in December across the year — January's 5.51 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
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
175.6Bright
185.6Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.6Bright
315.6Bright
Planning a trip in January

Hazard calendar for Alumínio

In seasonPeak

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

Alumínio'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 Alumínio?

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

January is a reasonable time to visit Alumínio for sightseeing.

What to pack for Alumínio in January

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

In January, Alumínio sees daytime highs around 28°C and nights near 19°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.

light clothesrain gearsun protection

UV index in Alumínio 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 Alumínio peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 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 12UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug8Very high
Sep8Very high
Oct11Extreme
Nov12Extreme
Dec14Extreme

Air quality in Alumínio 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 Alumínio is worst in July — around 38 µg/m³ PM2.5 (poor), about 2.1× the cleanest month (January, 18 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateJul 1838 µg/m³Jan 1018 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb20Moderate
Mar22Moderate
Apr26Moderate
May31Moderate
Jun35Poor
Jul38Poor
Aug36Poor
Sep35Poor
Oct25Moderate
Nov18Moderate
Dec18Moderate
Location & terrain

Where is Alumínio?

Alumínio sits at 23.5°S, 47.3°W, 789 m above sea level, in Brazil. The nearest listed city is Mairinque, 8.0 km away.

Topography around Alumínio

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

Within 3 km, the terrain around Alumínio has significant variations in elevation — a maximum elevation change of 295 m around an average of 826 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 530 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,291 m.

The land around Alumínio is covered by trees (68%) within 3 km, trees (61%) and grassland (27%) within 16 km, and trees (56%) within 80 km.

3 km
295 m
16 km
530 m
80 km
1,291 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Mairinque 8.0 km · São Roque 13 km · Ibiúna 14 km · Votorantim 18 km · Sorocaba 20 km · Araçariguama 23 km · Vargem Grande Paulista 25 km · Piedade 26 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 Alumínio (-23.535°, -47.2619°, elevation 789 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).