São Benedito do Rio Preto weather in September

In September, São Benedito do Rio Preto sees average daytime highs of 35°C and overnight lows near 24°C, with 4 mm of rain across 0.8 wet days and about 12 hours of daylight. It is the 3rd-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 35°C through the month. The sky is clear or mostly clear about 73% of the time in September, and the air most often feels muggy.

Daylight stretches from about 11 h 54 min at the start of September to 12 hours by month's end. Set against the rest of the year, September is São Benedito do Rio Preto's 1st-clearest and 2nd-windiest month. For the whole year in context, see São Benedito do Rio Preto's year-round climate.

Daytime high
35°
3rd warmest
Overnight low
24°
9th coldest
Rainfall
4 mm
0.8 wet days
Daylight
12 hours
5:49 AM – 5:48 PM
Cloud cover
34%
1st clearest
Wind
13 km/h
2nd windiest
Solar energy
6.39 kWh/m²
Travel score
3.4
out of 10

São Benedito do Rio Preto 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 35°C through the month.

A typical September day in São Benedito do Rio Preto reaches about 35°C in the afternoon and slips back to 24°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 33°C and 36°C. Set against its neighbours, September runs about 1°C warmer than August and on par with October.

20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13424
23424
33424
43424
53424
63424
73524
83524
93524
103524
113524
123524
133524
143524
153524
163524
173524
183524
193524
203524
213524
223524
233524
243524
253524
263524
273524
283524
293524
303524

How September really feels in São Benedito do Rio Preto

Once humidity and wind are folded in, September averages 30 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
30
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

São Benedito do Rio Preto weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 24°19221.612.22.8
Feb31° / 23°24823.412.12.7
Mar31° / 23°33228.5122.5
Apr31° / 23°31826.811.92.6
May31° / 23°19520.511.93.4
Jun31° / 23°5610.811.84.5
Jul32° / 23°325.711.84.8
Aug33° / 23°61.211.94.2
Sep35° / 24°40.8123.4
Oct35° / 25°132.512.12.9
Nov35° / 25°234.212.22.9
Dec34° / 25°6510.212.22.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 73% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 20% of September, with mostly cloudy or overcast conditions the remaining 8%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1955
2955
3955
4955
5955
6955
7955
8955
9955
10937
11937
12937
13937
14928
15928
16928
17928
18919
19919
209010
219010
229010
239010
249010
259010
269010
279010
288911
298911
308911

Chance of precipitation in September

Any precipitation

São Benedito do Rio Preto gets around 4 mm of rain over 0.8 wet days in September, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 3% and peaks near 6% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
12
22
31
41
51
62
72
82
92
102
112
122
132
143
153
163
173
183
193
203
214
224
234
244
255
265
275
285
295
306

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 58% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)
105347
205446
315544
415643
515841
615940
716039
816138
916138
1016138
1116138
1216138
1316138
1416039
1516039
1615940
1706040
1805941
1905842
2005842
2105743
2205743
2305743
2405743
2505743
2605743
2705644
2805644
2905644
3005644

Wind in September

Winds average 13 km/h in September.

Across September, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 54 min at the start of September to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over September. Sunrise moves from 5:56 AM to 5:43 AM, and sunset from 5:52 PM to 5:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:565:52
211.95:555:52
311.95:555:51
411.95:545:51
511.95:545:51
612.05:545:51
712.05:535:50
812.05:535:50
912.05:525:50
1012.05:525:50
1112.05:515:49
1212.05:515:49
1312.05:505:49
1412.05:505:48
1512.05:495:48
1612.05:495:48
1712.05:495:48
1812.05:485:47
1912.05:485:47
2012.05:475:47
2112.05:475:47
2212.05:465:46
2312.05:465:46
2412.05:455:46
2512.05:455:45
2612.05:445:45
2712.05:445:45
2812.05:445:45
2912.05:435:44
3012.05:435:44

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.39 kWh/m².

For context, solar energy here swings from a low near 4.39 kWh/m² to a high of 6.44 kWh/m² in October across the year — September's 6.39 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.2Intense
46.3Intense
56.3Intense
66.3Intense
76.3Intense
86.3Intense
96.3Intense
106.3Intense
116.4Intense
126.4Intense
136.4Intense
146.4Intense
156.4Intense
166.4Intense
176.4Intense
186.4Intense
196.4Intense
206.4Intense
216.4Intense
226.4Intense
236.4Intense
246.4Intense
256.4Intense
266.5Intense
276.5Intense
286.5Intense
296.5Intense
306.5Intense
Planning a trip in September

Hazard calendar for São Benedito do Rio Preto

In seasonPeak

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

São Benedito do Rio Preto's monsoon runs January–May, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit São Benedito do Rio Preto?

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

3.4
Sightseeing
4th-best month of the year
7.1
Beach & pool
3rd-best month of the year

September is a weaker month for outdoor sightseeing in São Benedito do Rio Preto. The water and warmth also suit a beach or pool day.

What to pack for São Benedito do Rio Preto in September

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

In September, São Benedito do Rio Preto sees daytime highs around 35°C and nights near 24°C. Pack light clothes and sun protection.

light clothessun protection

UV index in São Benedito do Rio Preto in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in São Benedito do Rio Preto peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 18 at about 10 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 16UV 15Jul 18UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Extreme
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in São Benedito do Rio Preto 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 São Benedito do Rio Preto is worst in February — around 15 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (June, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateGoodModerateFeb 1815 µg/m³Jun 108 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb15Moderate
Mar14Moderate
Apr12Good
May8Good
Jun8Good
Jul14Moderate
Aug12Good
Sep10Good
Oct11Good
Nov14Moderate
Dec14Moderate
Location & terrain

Where is São Benedito do Rio Preto?

São Benedito do Rio Preto sits at 3.3°S, 43.5°W, 34 m above sea level, in Brazil. The nearest listed city is Urbano Santos, 20 km away.

Topography around São Benedito do Rio Preto

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São Benedito do Rio Preto.

Within 3 km, the terrain around São Benedito do Rio Preto has only modest variations in elevation — a maximum elevation change of 73 m around an average of 63 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 99 m; within 80 km, only modest variations in elevation — a maximum elevation change of 130 m.

The land around São Benedito do Rio Preto is covered by trees (78%) within 3 km, trees (83%) within 16 km, and trees (74%) within 80 km.

3 km
73 m
16 km
99 m
80 km
130 m
treesshrubsgrasslandcroplandartificial surfaces
September weather nearby: Urbano Santos 20 km · Vargem Grande 49 km · Chapadinha 49 km · Mata Roma 57 km · Morros 77 km · Humberto de Campos 82 km · Icatu 86 km · Pirapemas 89 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 São Benedito do Rio Preto (-3.3336°, -43.5283°, elevation 34 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).