Salto weather in September

In September, Salto sees average daytime highs of 27°C and overnight lows near 15°C, with 82 mm of rain across 8.4 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 45% 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 Salto's 5th-clearest and 1st-windiest month. For the whole year in context, see Salto's year-round climate.

Daytime high
27°
8th warmest
Overnight low
15°
5th coldest
Rainfall
82 mm
8.4 wet days
Daylight
11 h 54 min
7:07 AM – 6:59 PM
Cloud cover
50%
5th clearest
Wind
12 km/h
1st windiest
Solar energy
5.21 kWh/m²
Travel score
6.9
out of 10

Salto 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 Salto reaches about 27°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 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)
12714
22715
32715
42715
52715
62715
72715
82715
92715
102715
112715
122715
132715
142716
152716
162716
172716
182716
192716
202716
212716
222716
232716
242716
252716
262716
272716
282716
292716
302716

Salto 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°23721.813.34.1
Feb29° / 20°1621812.84.3
Mar28° / 19°12516.412.25.1
Apr27° / 17°617.911.56.9
May24° / 15°636.710.97.5
Jun24° / 13°485.110.68.0
Jul24° / 13°434.510.78.2
Aug25° / 13°364.411.28.1
Sep27° / 15°828.411.96.9
Oct28° / 17°11212.612.55.9
Nov28° / 18°1421513.15.5
Dec28° / 19°1851913.44.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 45% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 13% of September, with mostly cloudy or overcast conditions the remaining 43%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16931
26832
36832
46733
56535
66436
76436
86337
96238
106139
116040
125941
135941
145842
155842
165743
175743
185644
195545
205545
215446
225347
235248
245149
255050
264951
274852
284753
294654
304654

Chance of precipitation in September

Any precipitation

Salto gets around 82 mm of rain over 8.4 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 28% and peaks near 38% 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
520
621
722
822
923
1023
1124
1225
1325
1426
1527
1627
1728
1829
1930
2031
2132
2233
2334
2434
2535
2636
2736
2837
2937
3038

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 37% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
15334130
25234140
35134150
45134150
54934160
64834170
74734181
84535191
94435201
104236211
114037221
123938231
133738241
143639251
153439261
163339261
173240272
183140272
193040282
202940293
212840293
222740294
232639305
242539306
252538316
262437327
272337328
282336338
292235349
302135359

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
1512light breeze
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 7:23 AM to 6:53 AM, and sunset from 6:55 PM to 7:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.57:236:55
211.67:226:55
311.67:216:55
411.67:206:56
511.67:196:56
611.67:186:56
711.77:176:57
811.77:166:57
911.77:156:57
1011.77:146:58
1111.87:136:58
1211.87:126:58
1311.87:116:59
1411.87:106:59
1511.87:096:59
1611.97:076:59
1711.97:067:00
1811.97:057:00
1911.97:047:00
2012.07:037:01
2112.07:027:01
2212.07:017:01
2312.07:007:02
2412.16:597:02
2512.16:587:02
2612.16:577:03
2712.16:567:03
2812.16:557:03
2912.26:547:04
3012.26:537:04

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.21 kWh/m².

For context, solar energy here swings from a low near 3.53 kWh/m² to a high of 5.94 kWh/m² in November across the year — September's 5.21 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.1Bright
45.1Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.2Bright
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
Planning a trip in September

Hazard calendar for Salto

In seasonPeak

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

Salto'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 Salto?

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
6.9
Beach & pool
3rd-best month of the year

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

What to pack for Salto in September

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

In September, Salto sees daytime highs around 27°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 Salto 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 Salto peaks around January 22 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 22UV 15Jul 12UV 5
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug8Very high
Sep8Very high
Oct11Extreme
Nov13Extreme
Dec14Extreme

Air quality in Salto 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 Salto 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 Salto?

Salto sits at 23.2°S, 47.3°W, 562 m above sea level, in Brazil. The nearest listed city is Itu, 7.0 km away.

Topography around Salto

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

Within 3 km, the terrain around Salto has only modest variations in elevation — a maximum elevation change of 128 m around an average of 550 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 423 m; within 80 km, large variations in elevation — a maximum elevation change of 936 m.

The land around Salto is covered by artificial surfaces (47%), trees (23%) and grassland (21%) within 3 km, grassland (32%), trees (31%) and cropland (24%) within 16 km, and trees (40%), grassland (24%) and cropland (24%) within 80 km.

3 km
128 m
16 km
423 m
80 km
936 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Itu 7.0 km · Indaiatuba 15 km · Elias Fausto 20 km · Cabreúva 20 km · Itupeva 24 km · Porto Feliz 24 km · Monte Mor 28 km · Capivari 32 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 Salto (-23.2008°, -47.2869°, elevation 562 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).