Caiapônia weather in September

In September, Caiapônia sees average daytime highs of 32°C and overnight lows near 19°C, with 40 mm of rain across 6.5 wet days and about 11.9 hours of daylight. It is the 1st-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 51% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 42 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Caiapônia's 5th-clearest and 2nd-windiest month. For the whole year in context, see Caiapônia's year-round climate.

Daytime high
32°
1st warmest
Overnight low
19°
6th coldest
Rainfall
40 mm
6.5 wet days
Daylight
11 h 54 min
7:24 AM – 7:19 PM
Cloud cover
43%
5th clearest
Wind
9 km/h
2nd windiest
Solar energy
5.9 kWh/m²
Travel score
4.4
out of 10

Caiapônia is 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 32°C through the month.

A typical September day in Caiapônia reaches about 32°C in the afternoon and slips back to 19°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 35°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C warmer than October.

15°20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13218
23218
33218
43219
53219
63219
73219
83219
93219
103219
113219
123219
133219
143219
153219
163219
173220
183220
193220
203220
213220
223220
233220
243220
253220
263220
273220
283220
293220
303220

How September really feels in Caiapônia

Once humidity and wind are folded in, September averages 23 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
23
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.

Caiapônia weather by month

How September compares with the rest of the year at a glance. September is the 1st-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 20°29124.912.93.8
Feb28° / 20°22222.412.63.7
Mar29° / 20°19623.112.13.9
Apr29° / 19°7612.411.65.2
May29° / 17°213.811.26.7
Jun29° / 16°51117.3
Jul29° / 15°20.611.17.2
Aug31° / 17°71.111.45.8
Sep32° / 19°406.511.94.4
Oct31° / 20°10916.812.43.7
Nov29° / 20°2052312.83.6
Dec28° / 20°26626133.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 51% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 20% of September, with mostly cloudy or overcast conditions the remaining 28%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18119
28020
38020
48020
57921
67921
77921
87822
97822
107723
117624
127624
137525
147426
157327
167327
177228
187129
197030
206931
216832
226733
236535
246436
256337
266238
276139
286040
295941
305842

Chance of precipitation in September

Any precipitation

Caiapônia gets around 40 mm of rain over 6.5 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 22% 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 (%)
19
29
310
410
511
611
712
813
913
1014
1115
1216
1317
1418
1519
1620
1722
1823
1924
2026
2128
2230
2331
2433
2535
2637
2738
2840
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 42% of days. Sticky, muggy-or-worse air turns up on roughly 13% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
16519142
26420142
36220153
46220153
56120154
66020164
75920165
85721166
95622166
105422177
115223178
125123188
134924199
1447241910
1544252010
1642252111
1740262212
1838262313
1935262414
2033262515
2130262617
2228262719
2326252820
2424252922
2522243024
2621233126
2719223128
2818213130
2917203132
3016193134

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
278calm
288calm
298calm
308calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 42 min at the start of September to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over September. Sunrise moves from 7:37 AM to 7:13 AM, and sunset from 7:17 PM to 7:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.77:377:17
211.77:367:17
311.77:357:17
411.77:357:17
511.77:347:17
611.77:337:18
711.87:327:18
811.87:317:18
911.87:307:18
1011.87:307:18
1111.87:297:18
1211.87:287:18
1311.97:277:18
1411.97:267:19
1511.97:257:19
1611.97:247:19
1711.97:247:19
1811.97:237:19
1912.07:227:19
2012.07:217:19
2112.07:207:19
2212.07:197:19
2312.07:187:20
2412.07:187:20
2512.17:177:20
2612.17:167:20
2712.17:157:20
2812.17:147:20
2912.17:137:20
3012.17:137:21

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.9 kWh/m².

For context, solar energy here swings from a low near 4.47 kWh/m² to a high of 6.01 kWh/m² in October across the year — September's 5.9 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.8Bright
45.8Bright
55.8Bright
65.8Bright
75.8Bright
85.8Bright
95.8Bright
105.8Bright
115.9Bright
125.9Bright
135.9Bright
145.9Bright
155.9Bright
165.9Bright
175.9Bright
185.9Bright
195.9Bright
205.9Bright
215.9Bright
225.9Bright
236.0Bright
246.0Bright
256.0Bright
266.0Bright
276.0Bright
286.0Bright
296.0Intense
306.0Intense
Planning a trip in September

Hazard calendar for Caiapônia

In seasonPeak

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

Caiapônia'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 Caiapônia?

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

4.4
Sightseeing
6th-best month of the year
7.1
Beach & pool
5th-best month of the year

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

What to pack for Caiapônia in September

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

In September, Caiapônia sees daytime highs around 32°C and nights near 19°C. Pack light clothes. Worth having: sun protection. About 7 days see rain.

light clothessun protection

UV index in Caiapônia 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 Caiapônia peaks around January 24 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeJan 24UV 15Jun 22UV 8
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar14Extreme
Apr11Extreme
May9Very high
Jun8Very high
Jul8Very high
Aug9Very high
Sep12Extreme
Oct12Extreme
Nov15Extreme
Dec14Extreme

Air quality in Caiapônia 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 Caiapônia is worst in September — around 18 µg/m³ PM2.5 (moderate), about 6.4× the cleanest month (July, 3 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1817 µg/m³Jul 113 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb7Good
Mar6Good
Apr5Good
May5Good
Jun4Good
Jul3Good
Aug7Good
Sep18Moderate
Oct11Good
Nov6Good
Dec6Good
Location & terrain

Where is Caiapônia?

Caiapônia sits at 17.0°S, 51.8°W, 720 m above sea level, in Brazil. The nearest listed city is Iporá, 93 km away.

Topography around Caiapônia

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

Within 3 km, the terrain around Caiapônia has only modest variations in elevation — a maximum elevation change of 131 m around an average of 702 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 422 m; within 80 km, large variations in elevation — a maximum elevation change of 719 m.

The land around Caiapônia is covered by grassland (43%) and trees (26%) within 3 km, grassland (33%), trees (31%) and cropland (28%) within 16 km, and grassland (36%), cropland (32%) and trees (28%) within 80 km.

3 km
131 m
16 km
422 m
80 km
719 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Iporá 93 km · Jataí 103 km · Mineiros 104 km · Aragarças 127 km · Barra do Garças 128 km · Rio Verde 132 km · Alto Araguaia 155 km · Jussara 158 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 Caiapônia (-16.9567°, -51.8103°, elevation 720 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).