Itaiópolis weather in September

In September, Itaiópolis sees average daytime highs of 22°C and overnight lows near 12°C, with 163 mm of rain across 11.1 wet days and about 11.8 hours of daylight. It is the 8th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 22°C through the month. The sky is clear or mostly clear about 28% 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 Itaiópolis's 5th-clearest and 1st-windiest month. For the whole year in context, see Itaiópolis's year-round climate.

Daytime high
22°
8th warmest
Overnight low
12°
5th coldest
Rainfall
163 mm
11.1 wet days
Daylight
11 h 48 min
7:19 AM – 7:09 PM
Cloud cover
66%
5th clearest
Wind
10 km/h
1st windiest
Solar energy
4.13 kWh/m²
Travel score
6.3
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 22°C through the month.

A typical September day in Itaiópolis reaches about 22°C in the afternoon and slips back to 12°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 28°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°151015202530
Avg high (°C)Avg low (°C)
12211
22211
32211
42211
52211
62211
72212
82212
92212
102212
112212
122212
132212
142212
152212
162212
172212
182212
192212
202212
212212
222212
232212
242212
252212
262213
272213
282213
292213
302213

Itaiópolis weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 18°20321.113.54.8
Feb26° / 18°17618.912.94.8
Mar26° / 17°12115.312.25.8
Apr23° / 15°809.311.46.8
May20° / 11°1028.910.76.4
Jun19° / 10°1149.410.46.1
Jul19° / 958.910.56.3
Aug21° / 10°957.911.16.8
Sep22° / 12°16311.111.86.3
Oct23° / 14°17015.312.65.8
Nov25° / 15°13614.413.36.0
Dec26° / 17°16317.413.65.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% 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 61%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15248
25149
35050
44951
54753
64654
74654
84456
94357
104258
114159
124060
134060
144060
154060
163862
173763
183763
193664
203565
213466
223565
233367
243367
253268
263268
273070
283169
293070
303070

Chance of precipitation in September

Any precipitation

Itaiópolis gets around 163 mm of rain over 11.1 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 36% and peaks near 46% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
126
226
327
427
528
629
730
830
931
1032
1133
1233
1334
1435
1536
1637
1738
1839
1940
2041
2141
2242
2343
2444
2544
2645
2745
2845
2946
3046

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 48% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1583660
2573760
3563770
4543880
5543880
6533890
7523990
85139100
95139100
105040100
114940110
124840110
134740121
144740121
154640131
164640131
174640141
184639141
194639141
204639151
214638151
224638161
234538161
244538170
254438180
264338190
274238200
284238200
294138210
304038221

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 7:36 AM to 7:02 AM, and sunset from 7:03 PM to 7:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.57:367:03
211.57:357:03
311.57:337:04
411.57:327:04
511.67:317:05
611.67:307:05
711.67:297:06
811.67:287:06
911.77:277:06
1011.77:267:07
1111.77:247:07
1211.77:237:08
1311.87:227:08
1411.87:217:09
1511.87:207:09
1611.87:197:09
1711.97:177:10
1811.97:167:10
1911.97:157:11
2012.07:147:11
2112.07:137:11
2212.07:127:12
2312.07:107:12
2412.17:097:13
2512.17:087:13
2612.17:077:14
2712.17:067:14
2812.27:057:15
2912.27:037:15
3012.27:027:16

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.13 kWh/m².

For context, solar energy here swings from a low near 2.68 kWh/m² to a high of 5.65 kWh/m² in December across the year — September's 4.13 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.2Bright
24.2Bright
34.2Bright
44.2Bright
54.2Bright
64.2Bright
74.2Bright
84.2Bright
94.2Bright
104.2Bright
114.2Bright
124.2Bright
134.2Bright
144.2Bright
154.2Bright
164.2Bright
174.2Bright
184.2Bright
194.2Bright
204.2Bright
214.2Bright
224.1Bright
234.1Bright
244.1Bright
254.1Bright
264.1Bright
274.1Bright
284.1Bright
294.2Bright
304.2Bright
Planning a trip in September

Is September a good time to visit Itaiópolis?

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

6.3
Sightseeing
4th-best month of the year
4.3
Beach & pool
8th-best month of the year

September is a reasonable time to visit Itaiópolis for sightseeing.

What to pack for Itaiópolis in September

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

In September, Itaiópolis sees daytime highs around 22°C and nights near 12°C. Worth packing: rain gear. About 11 days see rain.

rain gear

UV index in Itaiópolis in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Itaiópolis peaks around January 19 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 19UV 15Jul 12UV 5
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar12Extreme
Apr9Very high
May6High
Jun5High
Jul5Moderate
Aug6High
Sep8Very high
Oct11Extreme
Nov13Extreme
Dec14Extreme

Air quality in Itaiópolis 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 Itaiópolis is worst in September — around 15 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (March, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1415 µg/m³Mar 107 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb7Good
Mar7Good
Apr8Good
May8Good
Jun8Good
Jul10Good
Aug12Moderate
Sep15Moderate
Oct10Good
Nov8Good
Dec7Good
Location & terrain

Where is Itaiópolis?

Itaiópolis sits at 26.3°S, 49.9°W, 932 m above sea level, in Brazil. The nearest listed city is Papanduva, 24 km away.

Topography around Itaiópolis

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

Within 3 km, the terrain around Itaiópolis has only modest variations in elevation — a maximum elevation change of 147 m around an average of 921 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 384 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,348 m.

The land around Itaiópolis is covered by trees (61%) within 3 km, trees (59%) and cropland (33%) within 16 km, and trees (73%) within 80 km.

3 km
147 m
16 km
384 m
80 km
1,348 m
treesgrasslandcroplandartificial surfaces
September weather nearby: Papanduva 24 km · Mafra 27 km · Rio Negro 28 km · Rio Negrinho 40 km · Três Barras 49 km · Canoinhas 51 km · São Bento do Sul 53 km · Quitandinha 66 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 Itaiópolis (-26.3364°, -49.9064°, elevation 932 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).