Alumínio in Fall

In fall (March, April and May), Alumínio sees average daytime highs around 26°C and overnight lows near 17°C, with 245 mm of rain over about 33 wet days across the season. It is the 3rd-warmest season and the 3rd-wettest season.

Over the season highs ease from about 28°C in early March to 22°C by late May. The sky is clear or mostly clear about 34% of the time across fall, and the air most often feels muggy.

Fall is Alumínio's 2nd-best season to visit on our travel score. For the whole year in context, see Alumínio's year-round climate.

Avg daytime high: 26°C; 3rd-warmest season
Avg overnight low: 17°C
Rainfall: 245 mm; 33 wet days
Avg wind: 10 km/h
Travel score: 6.5; 2nd-best season
Months: Mar · Apr · May

← Summer Alumínio year-round climate Winter →

Spring Summer Fall Winter

Temperature in Alumínio in Fall

Average highAverage lowShaded bands: 10–90% of days

Over the season highs ease from about 28°C in early March to 22°C by late May.

A typical fall day in Alumínio reaches about 26°C and drops to 17°C overnight. The warmest of the three months is March, the coolest May.

Alumínio weather by month

How the three fall months (March, April and May) compare with the rest of the year — the season's months are highlighted.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	28° / 19°	229	22.3	13.3	4.4
Feb	28° / 19°	161	18.8	12.8	4.4
Mar	28° / 19°	126	17.7	12.2	5.3
Apr	26° / 17°	60	8.5	11.5	6.9
May	24° / 14°	59	6.9	10.9	7.4
Jun	23° / 13°	48	5.3	10.6	7.7
Jul	23° / 12°	45	4.9	10.7	7.9
Aug	24° / 13°	37	4.7	11.2	8.1
Sep	26° / 15°	82	9	11.9	7.0
Oct	26° / 17°	109	13.1	12.6	6.0
Nov	27° / 17°	141	15.6	13.1	5.5
Dec	28° / 19°	179	20.1	13.4	4.8

Cloud cover in Fall

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time across fall.

Chance of precipitation in Fall

Any precipitation

Alumínio gets around 245 mm of rain over 33 wet days across fall. The line is the day-by-day chance of measurable precipitation.

Humidity in Fall

DryComfortableHumidMuggyOppressiveMiserable

Most of fall feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

Wind in Fall

Winds average 10 km/h across fall.

Sunrise & sunset in Fall

DaylightNight

Daylight runs from about 12 h 30 min in early March to 10 h 42 min by late May. The lit band spans sunrise to sunset each day.

Solar energy in Fall

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day across fall, about 4.5 kWh/m².

Planning a trip in fall

Hazard calendar for Alumínio

In seasonPeak

In fall, Alumínio overlaps 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 fall a good time to visit Alumínio?

Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.

6.5

Sightseeing

2nd-best month of the year

6.1

Beach & pool

2nd-best month of the year

fall is a reasonable time to visit Alumínio for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Alumínio in Fall

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

In fall, Alumínio sees daytime highs around 26°C and nights near 17°C. Pack light clothes and rain gear. Worth having: sun protection. About 33 days see rain.

light clothesrain gearsun protection

UV index in Alumínio in Fall

LowModerateHighVery highExtreme

Clear-sky midday UV across fall averages around 9 (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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	15	15	12	9	7	6	5	8	8	11	12	14
Level	Extreme	Extreme	Extreme	Very high	High	High	High	Very high	Very high	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	15	Extreme
Feb	15	Extreme
Mar	12	Extreme
Apr	9	Very high
May	7	High
Jun	6	High
Jul	5	High
Aug	8	Very high
Sep	8	Very high
Oct	11	Extreme
Nov	12	Extreme
Dec	14	Extreme

Air quality in Alumínio in Fall

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where fall 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).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	18	20	22	26	31	35	38	36	35	25	18	18
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Poor	Poor	Poor	Poor	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	18	Moderate
Feb	20	Moderate
Mar	22	Moderate
Apr	26	Moderate
May	31	Moderate
Jun	35	Poor
Jul	38	Poor
Aug	36	Poor
Sep	35	Poor
Oct	25	Moderate
Nov	18	Moderate
Dec	18	Moderate

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

trees 68%

16 km

530 m

trees 61%

80 km

1,291 m

trees 56%

treesgrasslandcroplandartificial surfacesbare terrainwater

← Summer Alumínio year-round climate Winter →

Fall 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

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.