Araçoiaba da Serra weather in September

In September, Araçoiaba da Serra sees average daytime highs of 26°C and overnight lows near 15°C, with 75 mm of rain across 8.3 wet days and about 11.9 hours of daylight. It is the 8th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 42% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 30 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is Araçoiaba da Serra's 6th-clearest and 1st-windiest month. For the whole year in context, see Araçoiaba da Serra's year-round climate.

Daytime high
26°
8th warmest
Overnight low
15°
5th coldest
Rainfall
75 mm
8.3 wet days
Daylight
11 h 54 min
7:09 AM – 7:01 PM
Cloud cover
52%
6th clearest
Wind
12 km/h
1st windiest
Solar energy
5.06 kWh/m²
Travel score
6.9
out of 10

Araçoiaba da Serra is human settlement in Brazil.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical September day in Araçoiaba da Serra reaches about 26°C in the afternoon and slips back to 15°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 33°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C cooler than October.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12614
22615
32615
42615
52715
62715
72715
82715
92715
102715
112715
122715
132715
142715
152715
162715
172615
182616
192616
202616
212616
222616
232616
242616
252616
262616
272616
282616
292616
302616

Araçoiaba da Serra weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 20°21821.313.34.1
Feb29° / 20°14517.612.84.3
Mar28° / 19°10616.112.25.2
Apr27° / 17°537.411.56.9
May24° / 15°576.610.97.6
Jun23° / 13°47510.67.9
Jul23° / 13°424.810.78.1
Aug25° / 13°354.411.28.1
Sep26° / 15°758.311.96.9
Oct27° / 17°9911.812.66.1
Nov28° / 18°12514.113.15.6
Dec29° / 19°16217.813.44.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 11% of September, with mostly cloudy or overcast conditions the remaining 47%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16634
26535
36436
46337
56238
66238
76040
85941
95842
105743
115743
125644
135545
145446
155347
165347
175248
185248
195149
205050
214951
224951
234852
244753
254654
264456
274357
284258
294159
304159

Chance of precipitation in September

Any precipitation

Araçoiaba da Serra gets around 75 mm of rain over 8.3 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 27% and peaks near 35% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
118
219
319
420
521
621
722
823
923
1024
1125
1225
1326
1426
1527
1628
1728
1829
1930
2031
2131
2232
2333
2433
2534
2634
2735
2835
2935
3035

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 38% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
15434120
25434120
35433130
45333140
55233150
65133160
74934171
84834181
94635191
104535191
114336201
124137211
134037221
143938231
153739231
163639241
173540241
183340252
193240252
203141263
213041263
222940274
232840274
242740285
252639296
262539296
272538307
282438318
292337328
302237339

Wind in September

Winds average 12 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 30 min at the start of September to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over September. Sunrise moves from 7:25 AM to 6:54 AM, and sunset from 6:56 PM to 7:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.57:256:56
211.57:246:56
311.67:236:56
411.67:216:57
511.67:206:57
611.67:196:57
711.77:186:58
811.77:176:58
911.77:166:58
1011.77:156:59
1111.77:146:59
1211.87:136:59
1311.87:127:00
1411.87:117:00
1511.87:107:00
1611.97:097:01
1711.97:087:01
1811.97:077:01
1911.97:067:02
2012.07:057:02
2112.07:037:02
2212.07:027:03
2312.07:017:03
2412.17:007:03
2512.16:597:04
2612.16:587:04
2712.16:577:04
2812.16:567:05
2912.26:557:05
3012.26:547:06

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.06 kWh/m².

For context, solar energy here swings from a low near 3.42 kWh/m² to a high of 5.88 kWh/m² in December across the year — September's 5.06 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.1Bright
125.1Bright
135.1Bright
145.1Bright
155.1Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.1Bright
275.1Bright
285.1Bright
295.2Bright
305.2Bright
Planning a trip in September

Hazard calendar for Araçoiaba da Serra

In seasonPeak

None of Araçoiaba da Serra's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Araçoiaba da Serra'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 September a good time to visit Araçoiaba da Serra?

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

6.9
Sightseeing
5th-best month of the year
6.8
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Araçoiaba da Serra for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Araçoiaba da Serra in September

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

In September, Araçoiaba da Serra sees daytime highs around 26°C and nights near 15°C. Worth packing: light clothes, rain gear and sun protection. About 8 days see rain.

light clothesrain gearsun protection

UV index in Araçoiaba da Serra in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Araçoiaba da Serra peaks around January 22 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 22UV 15Jul 12UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug8Very high
Sep8Very high
Oct11Extreme
Nov13Extreme
Dec14Extreme

Air quality in Araçoiaba da Serra in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Araçoiaba da Serra 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 Araçoiaba da Serra?

Araçoiaba da Serra sits at 23.5°S, 47.6°W, 619 m above sea level, in Brazil. The nearest listed city is Capela do Alto, 13 km away.

Topography around Araçoiaba da Serra

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

Within 3 km, the terrain around Araçoiaba da Serra has only modest variations in elevation — a maximum elevation change of 138 m around an average of 636 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 448 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,272 m.

The land around Araçoiaba da Serra is covered by trees (32%), cropland (29%) and grassland (22%) within 3 km, trees (36%), grassland (26%) and cropland (26%) within 16 km, and trees (51%), grassland (23%) and cropland (22%) within 80 km.

3 km
138 m
16 km
448 m
80 km
1,272 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Capela do Alto 13 km · Sorocaba 16 km · Salto de Pirapora 17 km · Votorantim 19 km · Iperó 19 km · Boituva 25 km · Piedade 30 km · Tatuí 30 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 Araçoiaba da Serra (-23.5053°, -47.6142°, elevation 619 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).