Itapevi weather in September

In September, Itapevi sees average daytime highs of 25°C and overnight lows near 15°C, with 86 mm of rain across 9.3 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 25°C through the month. The sky is clear or mostly clear about 36% 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 Itapevi's 6th-clearest and 1st-windiest month. For the whole year in context, see Itapevi's year-round climate.

Daytime high
25°
8th warmest
Overnight low
15°
5th coldest
Rainfall
86 mm
9.3 wet days
Daylight
11 h 54 min
7:06 AM – 6:58 PM
Cloud cover
57%
6th clearest
Wind
12 km/h
1st windiest
Solar energy
4.9 kWh/m²
Travel score
7.0
out of 10

Itapevi 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 25°C through the month.

A typical September day in Itapevi reaches about 25°C in the afternoon and slips back to 15°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 31°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)
12514
22514
32514
42514
52514
62514
72514
82514
92514
102514
112514
122514
132515
142515
152515
162515
172515
182515
192515
202515
212515
222515
232515
242515
252515
262515
272515
282515
292515
302515

Itapevi 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
Jan27° / 19°23022.713.34.4
Feb28° / 19°16819.312.84.7
Mar27° / 18°13618.612.25.3
Apr26° / 17°639.111.56.9
May23° / 14°60710.97.3
Jun22° / 13°485.310.67.6
Jul22° / 12°48510.77.7
Aug24° / 13°384.911.28.0
Sep25° / 15°869.311.97.0
Oct26° / 16°11413.712.66.0
Nov26° / 17°15016.113.15.5
Dec27° / 18°18120.613.44.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% 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 51%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16337
26238
36139
46040
55941
65842
75743
85545
95446
105446
115347
125248
135248
145050
154951
164852
174753
184753
194654
204555
214357
224258
234159
244060
253961
263862
273862
283763
293664
303565

Chance of precipitation in September

Any precipitation

Itapevi gets around 86 mm of rain over 9.3 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 30% and peaks near 42% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
120
221
321
422
522
623
724
824
925
1025
1126
1226
1327
1427
1528
1629
1730
1831
1932
2034
2135
2236
2337
2438
2539
2640
2741
2841
2942
3042

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 43% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
15139100
25040110
34940110
44840120
54741130
64541130
74442140
84342150
94143160
104043170
113844170
123745180
133545190
143446201
153346211
163246221
173146221
183046231
192945241
202845251
212845262
222744272
232644282
242543293
252443303
262342314
272242324
282241334
292140345
302040355

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
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze

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 7:22 AM to 6:51 AM, and sunset from 6:53 PM to 7:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.57:226:53
211.57:216:53
311.67:206:54
411.67:196:54
511.67:186:54
611.67:176:55
711.77:166:55
811.77:156:55
911.77:146:56
1011.77:136:56
1111.77:116:56
1211.87:106:57
1311.87:096:57
1411.87:086:57
1511.87:076:58
1611.97:066:58
1711.97:056:58
1811.97:046:59
1911.97:036:59
2012.07:026:59
2112.07:017:00
2212.07:007:00
2312.06:597:00
2412.16:587:01
2512.16:567:01
2612.16:557:01
2712.16:547:02
2812.16:537:02
2912.26:527:02
3012.26:517:03

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.9 kWh/m².

For context, solar energy here swings from a low near 3.39 kWh/m² to a high of 5.76 kWh/m² in December across the year — September's 4.9 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.9Bright
44.9Bright
54.9Bright
64.9Bright
74.9Bright
84.9Bright
94.9Bright
104.9Bright
114.9Bright
124.9Bright
134.9Bright
144.9Bright
154.9Bright
164.9Bright
174.9Bright
184.9Bright
194.9Bright
204.9Bright
214.9Bright
224.9Bright
234.9Bright
244.9Bright
254.9Bright
264.9Bright
274.9Bright
285.0Bright
295.0Bright
305.0Bright
Planning a trip in September

Hazard calendar for Itapevi

In seasonPeak

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

Itapevi'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 Itapevi?

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

7.0
Sightseeing
5th-best month of the year
6.3
Beach & pool
3rd-best month of the year

September is one of the better times to visit Itapevi for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Itapevi in September

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

In September, Itapevi sees daytime highs around 25°C and nights near 15°C. Worth packing: light clothes, rain gear and sun protection. About 9 days see rain.

light clothesrain gearsun protection

UV index in Itapevi in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Itapevi peaks around January 22 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 13 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 22UV 15Jul 13UV 5
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar11Extreme
Apr9Very high
May7High
Jun6High
Jul5Moderate
Aug8Very high
Sep8Very high
Oct10Extreme
Nov12Extreme
Dec14Extreme

Air quality in Itapevi 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 Itapevi 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 Itapevi?

Itapevi sits at 23.5°S, 46.9°W, 772 m above sea level, in Brazil. The nearest listed city is Jandira, 4.0 km away.

Topography around Itapevi

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

Within 3 km, the terrain around Itapevi has only modest variations in elevation — a maximum elevation change of 198 m around an average of 784 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 529 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,434 m.

The land around Itapevi is covered by artificial surfaces (58%) and trees (26%) within 3 km, trees (57%) and artificial surfaces (26%) within 16 km, and trees (59%) within 80 km.

3 km
198 m
16 km
529 m
80 km
1,434 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Jandira 4.0 km · Cotia 6.0 km · Barueri 7.0 km · Carapicuíba 11 km · Vargem Grande Paulista 11 km · Santana de Parnaíba 12 km · Embu das Artes 14 km · Osasco 15 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 Itapevi (-23.5489°, -46.9342°, elevation 772 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).