Arapongas weather in September

In September, Arapongas sees average daytime highs of 27°C and overnight lows near 16°C, with 126 mm of rain across 9.7 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 49% 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 Arapongas's 4th-clearest and 1st-windiest month. For the whole year in context, see Arapongas's year-round climate.

Daytime high
27°
8th warmest
Overnight low
16°
5th coldest
Rainfall
126 mm
9.7 wet days
Daylight
11 h 54 min
7:24 AM – 7:16 PM
Cloud cover
46%
4th clearest
Wind
11 km/h
1st windiest
Solar energy
5.2 kWh/m²
Travel score
6.8
out of 10

Arapongas 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 Arapongas 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 21°C and 32°C. Set against its neighbours, September runs about 2°C warmer than August and about 1°C cooler than October.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12615
22715
32715
42715
52715
62715
72715
82715
92715
102715
112716
122716
132716
142716
152716
162716
172716
182716
192716
202716
212716
222716
232716
242716
252716
262716
272716
282716
292716
302716

Arapongas 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
Jan28° / 20°27822.613.34.1
Feb28° / 20°22520.612.84.1
Mar28° / 19°15517.712.25.0
Apr27° / 17°929.311.56.7
May23° / 14°1048.710.97.2
Jun22° / 13°987.810.67.3
Jul23° / 13°716.310.77.7
Aug25° / 14°726.211.27.9
Sep27° / 16°1269.711.96.8
Oct28° / 17°16714.212.55.8
Nov28° / 18°17314.913.15.3
Dec28° / 19°21419.513.44.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 49% 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 39%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17228
27129
37030
46931
56832
66832
76733
86634
96535
106436
116436
126436
136337
146238
156238
166238
176139
186040
196040
205941
215842
225644
235644
245545
255446
265347
275248
285149
295050
305050

Chance of precipitation in September

Any precipitation

Arapongas gets around 126 mm of rain over 9.7 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 32% and peaks near 41% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
122
223
324
424
525
626
727
827
928
1028
1129
1230
1330
1431
1531
1632
1733
1833
1934
2035
2136
2236
2337
2438
2539
2640
2740
2841
2941
3041

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 35% of days. Sticky, muggy-or-worse air turns up on roughly 6% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14735152
24735162
34634173
44534183
54533193
64433203
74432213
84332223
94232234
104132244
114032244
123932254
133832264
143732264
153633275
163533275
173433285
183333296
193233296
203132306
213032317
222932318
232831329
2427313310
2526303311
2625303412
2724293413
2823283514
2922283515
3021273516

Wind in September

Winds average 11 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 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm

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 7:40 AM to 7:09 AM, and sunset from 7:11 PM to 7:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.57:407:11
211.57:397:11
311.67:387:12
411.67:377:12
511.67:367:12
611.67:357:13
711.77:347:13
811.77:337:13
911.77:317:14
1011.77:307:14
1111.87:297:14
1211.87:287:15
1311.87:277:15
1411.87:267:15
1511.87:257:16
1611.97:247:16
1711.97:237:16
1811.97:227:17
1911.97:217:17
2012.07:207:17
2112.07:197:18
2212.07:187:18
2312.07:177:18
2412.17:167:19
2512.17:147:19
2612.17:137:19
2712.17:127:20
2812.17:117:20
2912.27:107:20
3012.27:097:21

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.2 kWh/m².

For context, solar energy here swings from a low near 3.34 kWh/m² to a high of 6.11 kWh/m² in November across the year — September's 5.2 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.1Bright
45.1Bright
55.1Bright
65.1Bright
75.1Bright
85.1Bright
95.1Bright
105.1Bright
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
305.4Bright
Planning a trip in September

Hazard calendar for Arapongas

In seasonPeak

In September, Arapongas sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Arapongas's rainy season runs September–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 Arapongas?

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

6.8
Sightseeing
5th-best month of the year
6.8
Beach & pool
2nd-best month of the year

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

What to pack for Arapongas in September

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

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

light clothesrain gearsun protection

UV index in Arapongas 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 Arapongas peaks around January 20 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 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 highHighExtremeJan 20UV 15Sep 12UV 5
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug7High
Sep5Moderate
Oct11Extreme
Nov13Extreme
Dec13Extreme

Air quality in Arapongas 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 Arapongas is worst in September — around 23 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1422 µg/m³Dec 169 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb9Good
Mar9Good
Apr11Good
May13Moderate
Jun12Moderate
Jul14Moderate
Aug18Moderate
Sep23Moderate
Oct15Moderate
Nov9Good
Dec9Good
Location & terrain

Where is Arapongas?

Arapongas sits at 23.4°S, 51.4°W, 805 m above sea level, in Brazil. The nearest listed city is Rolândia, 13 km away.

Topography around Arapongas

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

Within 3 km, the terrain around Arapongas has only modest variations in elevation — a maximum elevation change of 131 m around an average of 766 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 372 m; within 80 km, large variations in elevation — a maximum elevation change of 1,029 m.

The land around Arapongas is covered by artificial surfaces (42%) and cropland (31%) within 3 km, cropland (64%) and trees (23%) within 16 km, and cropland (61%) and trees (22%) within 80 km.

3 km
131 m
16 km
372 m
80 km
1,029 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Rolândia 13 km · Apucarana 15 km · Cambé 22 km · Mandaguari 29 km · Londrina 29 km · Jandaia do Sul 30 km · Astorga 32 km · Jaguapitã 36 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 Arapongas (-23.4194°, -51.4244°, elevation 805 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).