Dois Vizinhos weather in September

In September, Dois Vizinhos sees average daytime highs of 25°C and overnight lows near 14°C, with 165 mm of rain across 10.4 wet days and about 11.8 hours of daylight. It is the 8th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 45% 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 Dois Vizinhos's 3rd-clearest and 1st-windiest month. For the whole year in context, see Dois Vizinhos's year-round climate.

Daytime high
25°
8th warmest
Overnight low
14°
5th coldest
Rainfall
165 mm
10.4 wet days
Daylight
11 h 54 min
7:31 AM – 7:22 PM
Cloud cover
49%
3rd clearest
Wind
10 km/h
1st windiest
Solar energy
4.83 kWh/m²
Travel score
6.9
out of 10

Dois Vizinhos 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 25°C through the month.

A typical September day in Dois Vizinhos reaches about 25°C in the afternoon and slips back to 14°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 32°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)
12513
22513
32513
42513
52513
62514
72514
82514
92514
102514
112514
122514
132514
142514
152514
162514
172514
182514
192514
202514
212514
222514
232514
242515
252515
262515
272515
282515
292615
302615

Dois Vizinhos weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 20°15017.113.44.4
Feb29° / 19°14916.212.94.5
Mar29° / 19°11813.212.25.5
Apr26° / 16°1209.411.46.8
May22° / 13°1479.410.86.9
Jun21° / 12°1449.310.46.7
Jul21° / 11°1158.410.67.0
Aug24° / 12°987.211.17.7
Sep25° / 14°16510.411.86.9
Oct27° / 16°20714.712.65.8
Nov28° / 17°15812.613.35.8
Dec29° / 19°17716.513.64.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 45% 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 44%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16634
26535
36436
46337
56337
66139
76139
86040
96040
105941
115941
125941
135842
145842
155743
165743
175644
185644
195644
205545
215446
225347
235248
245149
255050
265050
274951
284852
294753
304753

Chance of precipitation in September

Any precipitation

Dois Vizinhos gets around 165 mm of rain over 10.4 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 34% and peaks near 44% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
125
226
326
427
528
628
729
830
930
1031
1131
1232
1332
1433
1534
1634
1735
1836
1936
2037
2138
2239
2339
2440
2541
2642
2742
2843
2943
3044

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 34% of days. Sticky, muggy-or-worse air turns up on roughly 5% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14139201
24038201
34037211
44037221
53936232
63935242
73935242
83934252
93834262
103833272
113732282
123732283
133631293
143631304
153531304
163530314
173430315
183429325
193329326
203329326
213229337
223129337
233029348
242829348
252729359
2626293610
2725293610
2823283711
2923283812
3022273912

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 7:48 AM to 7:15 AM, and sunset from 7:16 PM to 7:28 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.57:487:16
211.57:477:16
311.57:467:17
411.57:457:17
511.67:437:18
611.67:427:18
711.67:417:18
811.67:407:19
911.77:397:19
1011.77:387:20
1111.77:377:20
1211.77:367:20
1311.87:347:21
1411.87:337:21
1511.87:327:22
1611.97:317:22
1711.97:307:22
1811.97:297:23
1911.97:287:23
2012.07:267:24
2112.07:257:24
2212.07:247:25
2312.07:237:25
2412.17:227:25
2512.17:217:26
2612.17:207:26
2712.17:187:27
2812.27:177:27
2912.27:167:28
3012.27:157:28

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.83 kWh/m².

For context, solar energy here swings from a low near 2.9 kWh/m² to a high of 6.34 kWh/m² in December across the year — September's 4.83 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.8Bright
154.8Bright
164.8Bright
174.9Bright
184.9Bright
194.9Bright
204.9Bright
214.9Bright
224.9Bright
234.9Bright
244.9Bright
254.9Bright
264.9Bright
274.9Bright
285.0Bright
295.0Bright
305.0Bright
Planning a trip in September

Is September a good time to visit Dois Vizinhos?

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

6.9
Sightseeing
3rd-best month of the year
6.3
Beach & pool
4th-best month of the year

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

What to pack for Dois Vizinhos in September

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

In September, Dois Vizinhos sees daytime highs around 25°C and nights near 14°C. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

UV index in Dois Vizinhos in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Dois Vizinhos peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighHighVery highExtremeJan 21UV 15Jul 12UV 5
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar12Extreme
Apr9Very high
May6High
Jun5High
Jul5Moderate
Aug6High
Sep7Very high
Oct10Very high
Nov12Extreme
Dec13Extreme

Air quality in Dois Vizinhos 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 Dois Vizinhos is worst in September — around 20 µg/m³ PM2.5 (moderate), about 3.1× the cleanest month (March, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1619 µg/m³Mar 136 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb7Good
Mar6Good
Apr8Good
May7Good
Jun7Good
Jul9Good
Aug12Moderate
Sep20Moderate
Oct13Moderate
Nov9Good
Dec7Good
Location & terrain

Where is Dois Vizinhos?

Dois Vizinhos sits at 25.7°S, 53.1°W, 562 m above sea level, in Brazil. The nearest listed city is Salto do Lontra, 26 km away.

Topography around Dois Vizinhos

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

Within 3 km, the terrain around Dois Vizinhos has only modest variations in elevation — a maximum elevation change of 244 m around an average of 528 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 368 m; within 80 km, large variations in elevation — a maximum elevation change of 903 m.

The land around Dois Vizinhos is covered by cropland (40%) and trees (32%) within 3 km, cropland (44%) and trees (38%) within 16 km, and trees (41%) and cropland (38%) within 80 km.

3 km
244 m
16 km
368 m
80 km
903 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Salto do Lontra 26 km · Quedas do Iguaçu 35 km · Francisco Beltrão 39 km · Ampére 46 km · Marmeleiro 46 km · Realeza 48 km · Chopinzinho 55 km · Coronel Vivida 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 Dois Vizinhos (-25.7336°, -53.0572°, elevation 562 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).