Monte Alto weather in September

In September, Monte Alto sees average daytime highs of 30°C and overnight lows near 18°C, with 66 mm of rain across 7 wet days and about 11.9 hours of daylight. It is the 2nd-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 55% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 36 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is Monte Alto's 4th-clearest and 1st-windiest month. For the whole year in context, see Monte Alto's year-round climate.

Daytime high
30°
2nd warmest
Overnight low
18°
5th coldest
Rainfall
66 mm
7 wet days
Daylight
11 h 54 min
7:12 AM – 7:05 PM
Cloud cover
42%
4th clearest
Wind
11 km/h
1st windiest
Solar energy
5.68 kWh/m²
Travel score
5.4
out of 10

Monte Alto 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 30°C through the month.

A typical September day in Monte Alto reaches about 30°C in the afternoon and slips back to 18°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 25°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)
13017
23017
33018
43018
53018
63018
73018
83018
93018
103018
113018
123018
133018
143018
153018
163019
173019
183019
193019
203019
213019
223019
233019
243019
253019
263019
273019
283019
293019
303019

Monte Alto weather by month

How September compares with the rest of the year at a glance. September is the 2nd-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 21°2672313.13.6
Feb30° / 21°19119.512.73.8
Mar29° / 21°17119.212.24.2
Apr29° / 19°659.111.55.9
May26° / 16°455.6117.5
Jun26° / 15°273.310.78.0
Jul27° / 15°202.510.88.2
Aug29° / 16°222.911.37.0
Sep30° / 18°66711.95.4
Oct31° / 20°11913.112.54.4
Nov30° / 20°16917.3134.1
Dec29° / 21°22322.413.33.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 55% 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 33%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17921
27822
37723
47723
57723
67525
77426
87426
97327
107327
117228
127129
137030
146931
156832
166733
176733
186634
196535
206436
216337
226238
236139
246040
255941
265743
275743
285644
295644
305545

Chance of precipitation in September

Any precipitation

Monte Alto gets around 66 mm of rain over 7 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 24% 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 (%)
114
215
315
415
516
616
717
817
918
1019
1119
1220
1320
1421
1522
1623
1724
1825
1926
2027
2128
2229
2330
2431
2532
2633
2733
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 39% of days. Sticky, muggy-or-worse air turns up on roughly 9% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
16025141
25825152
35725162
45625172
55525182
65425183
75226193
85026204
94926214
104727224
114627235
124428235
134228246
144129246
153930257
163830257
173631258
183531268
193331269
2032322710
2130322711
2229322712
2327322813
2426312815
2525312816
2624302817
2723302919
2822292920
2921282921
3020283022

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
410calm
510calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 36 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 36 minutes over September. Sunrise moves from 7:27 AM to 6:58 AM, and sunset from 7:01 PM to 7:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.67:277:01
211.67:267:01
311.67:257:01
411.67:247:02
511.77:237:02
611.77:227:02
711.77:217:02
811.77:207:03
911.77:197:03
1011.87:187:03
1111.87:177:03
1211.87:167:04
1311.87:157:04
1411.87:147:04
1511.97:137:04
1611.97:127:05
1711.97:117:05
1811.97:107:05
1911.97:097:05
2012.07:087:06
2112.07:077:06
2212.07:067:06
2312.07:057:07
2412.07:047:07
2512.17:037:07
2612.17:027:07
2712.17:017:08
2812.17:007:08
2912.26:597:08
3012.26:587:08

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.68 kWh/m².

For context, solar energy here swings from a low near 3.88 kWh/m² to a high of 6.02 kWh/m² in October across the year — September's 5.68 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.6Bright
85.6Bright
95.6Bright
105.6Bright
115.6Bright
125.6Bright
135.7Bright
145.7Bright
155.7Bright
165.7Bright
175.7Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.8Bright
255.8Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
Planning a trip in September

Hazard calendar for Monte Alto

In seasonPeak

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

Monte Alto's monsoon runs November–March, 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 Monte Alto?

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

5.4
Sightseeing
6th-best month of the year
7.5
Beach & pool
4th-best month of the year

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

What to pack for Monte Alto in September

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

In September, Monte Alto sees daytime highs around 30°C and nights near 18°C. Pack light clothes. Worth having: sun protection. About 7 days see rain.

light clothessun protection

UV index in Monte Alto 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 Monte Alto peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 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 21UV 15Jun 21UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Extreme
May8Very high
Jun6High
Jul7High
Aug9Very high
Sep9Very high
Oct10Extreme
Nov13Extreme
Dec14Extreme

Air quality in Monte Alto 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 Monte Alto is worst in September — around 35 µg/m³ PM2.5 (moderate), about 4.0× the cleanest month (November, 9 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1134 µg/m³Nov 229 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar11Good
Apr12Good
May13Moderate
Jun13Moderate
Jul14Moderate
Aug31Moderate
Sep35Moderate
Oct19Moderate
Nov9Good
Dec10Good
Location & terrain

Where is Monte Alto?

Monte Alto sits at 21.3°S, 48.5°W, 723 m above sea level, in Brazil. The nearest listed city is Taquaritinga, 16 km away.

Topography around Monte Alto

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

Within 3 km, the terrain around Monte Alto has only modest variations in elevation — a maximum elevation change of 184 m around an average of 682 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 260 m; within 80 km, significant variations in elevation — a maximum elevation change of 470 m.

The land around Monte Alto is covered by grassland (33%), artificial surfaces (31%) and trees (25%) within 3 km, cropland (55%) and grassland (23%) within 16 km, and cropland (72%) within 80 km.

3 km
184 m
16 km
260 m
80 km
470 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Taquaritinga 16 km · Jaboticabal 18 km · Guariba 30 km · Bebedouro 35 km · Barrinha 35 km · Pitangueiras 40 km · Matão 40 km · Monte Azul Paulista 42 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 Monte Alto (-21.2611°, -48.4964°, elevation 723 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).