Cerquilho weather in September

In September, Cerquilho sees average daytime highs of 27°C and overnight lows near 16°C, with 82 mm of rain across 8.6 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 27°C through the month. The sky is clear or mostly clear about 43% of the time in September, and the air most often feels comfortable.

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 Cerquilho's 5th-clearest and 1st-windiest month. For the whole year in context, see Cerquilho's year-round climate.

Daytime high
27°
8th warmest
Overnight low
16°
5th coldest
Rainfall
82 mm
8.6 wet days
Daylight
11 h 54 min
7:09 AM – 7:01 PM
Cloud cover
51%
5th clearest
Wind
11 km/h
1st windiest
Solar energy
5.19 kWh/m²
Travel score
6.7
out of 10

Cerquilho 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 27°C through the month.

A typical September day in Cerquilho reaches about 27°C in the afternoon and slips back to 16°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 21°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)
12715
22715
32715
42715
52715
62715
72815
82815
92815
102815
112815
122816
132816
142816
152816
162716
172716
182716
192716
202716
212716
222716
232716
242716
252716
262716
272716
282716
292716
302716

Cerquilho 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°25822.213.33.8
Feb30° / 20°17318.312.83.9
Mar29° / 20°13016.512.24.7
Apr28° / 18°597.811.56.5
May25° / 15°626.510.97.5
Jun24° / 13°495.310.68.0
Jul24° / 13°424.610.78.1
Aug26° / 14°394.511.27.9
Sep27° / 16°828.611.96.7
Oct28° / 17°11412.612.55.5
Nov29° / 18°14514.613.14.9
Dec29° / 20°19219.313.44.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 12% of September, with mostly cloudy or overcast conditions the remaining 45%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16832
26733
36535
46535
56436
66337
76139
86040
96040
105941
115743
125743
135644
145644
155644
165545
175545
185446
195347
205347
215248
225149
235050
244951
254951
264753
274654
284555
294456
304357

Chance of precipitation in September

Any precipitation

Cerquilho gets around 82 mm of rain over 8.6 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 29% and peaks near 37% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
120
220
321
422
522
623
723
824
925
1025
1126
1226
1327
1427
1528
1628
1729
1829
1930
2031
2132
2233
2333
2434
2535
2636
2736
2837
2937
3037

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the comfortable band about 39% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14538171
24438171
34338181
44238191
54138201
64138211
74038221
83938221
93738231
103639231
113540242
123340252
133241252
143141262
153041262
162941273
172841283
182741284
192641294
202541295
212440306
222340307
232339318
242238319
2521373210
2620363211
2720363312
2819353412
2919343413
3018333514

Wind in September

Winds average 11 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm

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 6:55 AM, and sunset from 6:57 PM to 7:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.57:256:57
211.67:246:57
311.67:236:57
411.67:226:58
511.67:216:58
611.67:206:58
711.77:196:58
811.77:186:59
911.77:176:59
1011.77:166:59
1111.87:157:00
1211.87:137:00
1311.87:127:00
1411.87:117:01
1511.87:107:01
1611.97:097:01
1711.97:087:02
1811.97:077:02
1911.97:067:02
2012.07:057:03
2112.07:047:03
2212.07:037:03
2312.07:027:04
2412.17:017:04
2512.17:007:04
2612.16:597:05
2712.16:587:05
2812.16:577:05
2912.26:567:06
3012.26:557:06

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.19 kWh/m².

For context, solar energy here swings from a low near 3.48 kWh/m² to a high of 5.97 kWh/m² in December across the year — September's 5.19 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.1Bright
45.1Bright
55.1Bright
65.1Bright
75.1Bright
85.2Bright
95.2Bright
105.2Bright
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.2Bright
205.2Bright
215.2Bright
225.2Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
Planning a trip in September

Hazard calendar for Cerquilho

In seasonPeak

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

Cerquilho'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 Cerquilho?

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

6.7
Sightseeing
5th-best month of the year
7.0
Beach & pool
3rd-best month of the year

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

What to pack for Cerquilho in September

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

In September, Cerquilho sees daytime highs around 27°C and nights near 16°C. Pack light clothes. Worth having: rain gear and sun protection. About 9 days see rain.

light clothesrain gearsun protection

UV index in Cerquilho 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 Cerquilho peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 5 (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 5
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar11Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug8Very high
Sep8Very high
Oct11Extreme
Nov13Extreme
Dec13Extreme

Air quality in Cerquilho 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 Cerquilho is worst in September — around 22 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (November, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodSep 922 µg/m³Nov 2312 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb13Moderate
Mar13Moderate
Apr14Moderate
May17Moderate
Jun20Moderate
Jul21Moderate
Aug22Moderate
Sep22Moderate
Oct17Moderate
Nov12Good
Dec12Good
Location & terrain

Where is Cerquilho?

Cerquilho sits at 23.2°S, 47.7°W, 587 m above sea level, in Brazil. The nearest listed city is Tietê, 8.0 km away.

Topography around Cerquilho

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

Within 3 km, the terrain around Cerquilho has only modest variations in elevation — a maximum elevation change of 112 m around an average of 561 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 194 m; within 80 km, large variations in elevation — a maximum elevation change of 838 m.

The land around Cerquilho is covered by artificial surfaces (32%), cropland (29%) and grassland (23%) within 3 km, cropland (44%), grassland (30%) and trees (20%) within 16 km, and trees (37%), cropland (29%) and grassland (27%) within 80 km.

3 km
112 m
16 km
194 m
80 km
838 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Tietê 8.0 km · Boituva 15 km · Laranjal Paulista 16 km · Iperó 21 km · Cesário Lange 22 km · Porto Feliz 23 km · Tatuí 24 km · Capivari 31 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 Cerquilho (-23.165°, -47.7436°, elevation 587 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).