Assis Chateaubriand weather in September

In September, Assis Chateaubriand sees average daytime highs of 27°C and overnight lows near 16°C, with 150 mm of rain across 9.8 wet days and about 11.8 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 48% of the time in September, and the air most often feels dry.

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 Assis Chateaubriand's 3rd-clearest and 1st-windiest month. For the whole year in context, see Assis Chateaubriand's year-round climate.

Daytime high
27°
8th warmest
Overnight low
16°
5th coldest
Rainfall
150 mm
9.8 wet days
Daylight
11 h 54 min
7:33 AM – 7:24 PM
Cloud cover
47%
3rd clearest
Wind
10 km/h
1st windiest
Solar energy
5.01 kWh/m²
Travel score
6.7
out of 10

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 Assis Chateaubriand reaches about 27°C in the afternoon and slips back to 16°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 33°C. Set against its neighbours, September runs about 2°C warmer than August and about 1°C cooler than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12715
22715
32715
42715
52715
62715
72715
82715
92716
102716
112716
122716
132716
142716
152716
162716
172716
182716
192716
202716
212716
222716
232716
242716
252716
262716
272716
282717
292717
302717

How September really feels in Assis Chateaubriand

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

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Assis Chateaubriand 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
Jan30° / 21°18418.713.34.0
Feb30° / 20°18016.912.94.1
Mar30° / 20°12714.812.24.8
Apr27° / 18°1229.411.46.4
May24° / 14°1519.310.87.1
Jun23° / 13°1359.110.57.0
Jul23° / 13°977.310.67.5
Aug25° / 14°936.911.27.7
Sep27° / 16°1509.811.86.7
Oct28° / 18°19413.412.65.4
Nov29° / 19°16213.213.25.0
Dec30° / 20°19517.313.54.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 11% of September, with mostly cloudy or overcast conditions the remaining 41%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16832
26832
36733
46634
56535
66436
76436
86238
96238
106238
116139
126040
136040
146040
155941
166040
175941
185941
195941
205842
215842
225743
235545
245446
255347
265248
275149
285050
294951
304852

Chance of precipitation in September

Any precipitation

Assis Chateaubriand gets around 150 mm of rain over 9.8 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 32% 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 (%)
123
224
324
425
526
627
727
828
929
1029
1130
1230
1331
1431
1532
1632
1733
1833
1934
2035
2135
2236
2337
2438
2539
2640
2741
2841
2941
3042

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 33% of days. Sticky, muggy-or-worse air turns up on roughly 10% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14335183
24335193
34235193
44135204
54135214
64034214
73934224
83934235
93833245
103733255
113732256
123632266
133532277
143431277
153431278
163430279
1733302810
1833292810
1932282811
2032282812
2131272913
2230272914
2329263015
2428263116
2527253117
2625253217
2724253318
2823243419
2922243519
3021233620

Wind in September

Winds average 10 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 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

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 7:49 AM to 7:17 AM, and sunset from 7:19 PM to 7:29 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.57:497:19
211.57:487:19
311.57:477:20
411.67:467:20
511.67:457:20
611.67:447:21
711.67:427:21
811.77:417:21
911.77:407:22
1011.77:397:22
1111.77:387:22
1211.87:377:23
1311.87:367:23
1411.87:357:23
1511.87:347:24
1611.97:337:24
1711.97:327:25
1811.97:307:25
1911.97:297:25
2012.07:287:26
2112.07:277:26
2212.07:267:26
2312.07:257:27
2412.17:247:27
2512.17:237:27
2612.17:227:28
2712.17:217:28
2812.27:197:29
2912.27:187:29
3012.27:177:29

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.01 kWh/m².

For context, solar energy here swings from a low near 3.07 kWh/m² to a high of 6.26 kWh/m² in December across the year — September's 5.01 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
64.9Bright
74.9Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.1Bright
275.1Bright
285.1Bright
295.1Bright
305.2Bright
Planning a trip in September

Is September a good time to visit Assis Chateaubriand?

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
6.8
Beach & pool
3rd-best month of the year

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

What to pack for Assis Chateaubriand in September

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

In September, Assis Chateaubriand sees daytime highs around 27°C and nights near 16°C. Pack light clothes. Worth having: rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

UV index in Assis Chateaubriand in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Assis Chateaubriand peaks around January 19 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighExtremeJan 19UV 15Jul 10UV 5
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar12Extreme
Apr9Very high
May6High
Jun5High
Jul5High
Aug7Very high
Sep5High
Oct10Extreme
Nov12Extreme
Dec14Extreme

Air quality in Assis Chateaubriand 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 Assis Chateaubriand is worst in September — around 19 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (March, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1718 µg/m³Mar 156 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb7Good
Mar6Good
Apr7Good
May8Good
Jun8Good
Jul8Good
Aug11Good
Sep19Moderate
Oct12Good
Nov8Good
Dec7Good
Location & terrain

Where is Assis Chateaubriand?

Assis Chateaubriand sits at 24.4°S, 53.5°W, 440 m above sea level, in Brazil. The nearest listed city is Cafelândia, 30 km away.

Topography around Assis Chateaubriand

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

Within 3 km, the terrain around Assis Chateaubriand has only modest variations in elevation — a maximum elevation change of 112 m around an average of 377 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 315 m; within 80 km, large variations in elevation — a maximum elevation change of 633 m.

The land around Assis Chateaubriand is covered by cropland (47%), artificial surfaces (23%) and trees (21%) within 3 km, cropland (78%) within 16 km, and cropland (68%) within 80 km.

3 km
112 m
16 km
315 m
80 km
633 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Cafelândia 30 km · Palotina 36 km · Toledo 40 km · Corbélia 47 km · Iporã 50 km · Ubiratã 56 km · Marechal Cândido Rondon 56 km · Goioerê 56 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 Assis Chateaubriand (-24.42°, -53.5214°, elevation 440 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).