Bauru weather in September

In September, Bauru sees average daytime highs of 29°C and overnight lows near 17°C, with 64 mm of rain across 7.9 wet days and about 11.9 hours of daylight. It is the 7th-warmest and 7th-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 53% 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 Bauru's 4th-clearest and 1st-windiest month. For the whole year in context, see Bauru's year-round climate.

Daytime high
29°
7th warmest
Overnight low
17°
5th coldest
Rainfall
64 mm
7.9 wet days
Daylight
11 h 54 min
7:14 AM – 7:07 PM
Cloud cover
43%
4th clearest
Wind
12 km/h
1st windiest
Solar energy
5.53 kWh/m²
Travel score
5.8
out of 10

Bauru is human settlement in Brazil.

Air quality
Good
PM10 24 µg/m³ · 2019

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 29°C through the month.

A typical September day in Bauru reaches about 29°C in the afternoon and slips back to 17°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 35°C. Set against its neighbours, September runs about 2°C warmer than August and on par with October.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12916
22916
32917
42917
52917
62917
72917
82917
92917
102917
113017
123017
133017
143017
153017
163017
172917
182917
192917
202917
212918
222918
232918
242918
252918
262918
272918
282918
292918
302918

How September really feels in Bauru

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Bauru weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 21°25322.513.23.5
Feb30° / 21°18418.512.83.7
Mar30° / 21°13216.812.24.4
Apr29° / 19°597.511.56.1
May26° / 16°576.210.97.5
Jun25° / 15°404.210.78.0
Jul26° / 14°273.710.88.1
Aug28° / 15°323.811.27.5
Sep29° / 17°647.911.95.8
Oct30° / 19°11012.212.54.6
Nov30° / 20°15215.413.14.3
Dec30° / 21°19219.913.33.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 53% 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 35%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17723
27624
37525
47426
57327
67228
77129
87030
97030
106832
116733
126733
136634
146634
156535
166436
176535
186436
196337
206238
216139
226040
235941
245842
255743
265644
275545
285446
295446
305347

Chance of precipitation in September

Any precipitation

Bauru gets around 64 mm of rain over 7.9 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 26% 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 (%)
116
217
318
418
519
619
720
821
921
1022
1122
1223
1323
1424
1524
1625
1726
1826
1927
2028
2129
2230
2331
2432
2533
2633
2734
2834
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 36% of days. Sticky, muggy-or-worse air turns up on roughly 9% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
15529142
25329153
35328163
45228173
55128174
65127184
74927194
84827205
94628215
104528225
114329226
124130236
133931246
143832246
153632257
163433257
173234268
183134268
192935279
2028352710
2127352810
2225352811
2324352912
2423342914
2522342915
2621333016
2720323017
2820323118
2919313119
3018303120

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
1111calm
1211calm
1311calm
1411calm
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 7:30 AM to 7:00 AM, and sunset from 7:02 PM to 7:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.57:307:02
211.67:297:03
311.67:287:03
411.67:277:03
511.67:267:04
611.77:257:04
711.77:247:04
811.77:237:04
911.77:227:05
1011.77:217:05
1111.87:207:05
1211.87:187:06
1311.87:177:06
1411.87:167:06
1511.97:157:06
1611.97:147:07
1711.97:137:07
1811.97:127:07
1911.97:117:08
2012.07:107:08
2112.07:097:08
2212.07:087:09
2312.07:077:09
2412.07:067:09
2512.17:057:09
2612.17:047:10
2712.17:037:10
2812.17:027:10
2912.27:017:11
3012.27:007:11

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.53 kWh/m².

For context, solar energy here swings from a low near 3.69 kWh/m² to a high of 6.04 kWh/m² in November across the year — September's 5.53 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.4Bright
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.5Bright
155.5Bright
165.5Bright
175.5Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
Planning a trip in September

Hazard calendar for Bauru

In seasonPeak

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

Bauru's rainy season runs November–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 Bauru?

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

5.8
Sightseeing
6th-best month of the year
7.6
Beach & pool
3rd-best month of the year

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

What to pack for Bauru in September

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

In September, Bauru sees daytime highs around 29°C and nights near 17°C. Pack light clothes. Worth having: sun protection. About 8 days see rain.

light clothessun protection

UV index in Bauru in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks 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 Bauru peaks around January 22 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 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 11UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Very high
May7High
Jun6High
Jul6High
Aug8Very high
Sep9Very high
Oct11Extreme
Nov13Extreme
Dec14Extreme

Air quality in Bauru 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 Bauru is worst in September — around 22 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (November, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1022 µg/m³Nov 239 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb10Good
Mar10Good
Apr11Good
May13Moderate
Jun14Moderate
Jul14Moderate
Aug22Moderate
Sep22Moderate
Oct17Moderate
Nov9Good
Dec9Good
Location & terrain

Where is Bauru?

Bauru sits at 22.3°S, 49.1°W, 530 m above sea level, in Brazil. The nearest listed city is Piratininga, 13 km away.

Topography around Bauru

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

Within 3 km, the terrain around Bauru has only modest variations in elevation — a maximum elevation change of 125 m around an average of 546 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 210 m; within 80 km, significant variations in elevation — a maximum elevation change of 520 m.

The land around Bauru is covered by artificial surfaces (76%) within 3 km, trees (40%) and cropland (32%) within 16 km, and cropland (50%) and trees (33%) within 80 km.

3 km
125 m
16 km
210 m
80 km
520 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Piratininga 13 km · Agudos 19 km · Pederneiras 30 km · Lençóis Paulista 41 km · Macatuba 42 km · Bariri 42 km · Jaú 52 km · Pirajuí 54 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 Bauru (-22.3147°, -49.0606°, elevation 530 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).