União da Vitória weather in September

In September, União da Vitória sees average daytime highs of 22°C and overnight lows near 11°C, with 137 mm of rain across 10.8 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 29% 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 União da Vitória's 4th-clearest and 1st-windiest month. For the whole year in context, see União da Vitória's year-round climate.

Daytime high
22°
8th warmest
Overnight low
11°
5th coldest
Rainfall
137 mm
10.8 wet days
Daylight
11 h 48 min
7:23 AM – 7:14 PM
Cloud cover
65%
4th clearest
Wind
9 km/h
1st windiest
Solar energy
4.15 kWh/m²
Travel score
6.4
out of 10

União da Vitória 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 22°C through the month.

A typical September day in União da Vitória reaches about 22°C in the afternoon and slips back to 11°C overnight — a 11°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°20°30°151015202530
Avg high (°C)Avg low (°C)
12210
22210
32210
42210
52210
62211
72211
82211
92211
102211
112211
122211
132211
142211
152211
162211
172211
182211
192211
202211
212211
222212
232212
242212
252212
262212
272212
282212
292212
302212

União da Vitória 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° / 17°15819.913.54.9
Feb26° / 17°14618.412.94.9
Mar26° / 16°10014.312.25.9
Apr23° / 14°739.311.46.8
May20° / 10°949.110.76.2
Jun19° / 958.910.46.1
Jul19° / 828.210.56.3
Aug21° / 767.411.16.9
Sep22° / 11°13710.811.86.4
Oct23° / 13°15214.612.65.9
Nov25° / 15°11513.613.36.1
Dec26° / 16°1381713.65.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% 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 58%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15545
25545
35446
45248
55149
65050
74951
84852
94555
104456
114456
124357
134357
144357
154159
164159
174159
183961
193961
203862
213763
223664
233664
243466
253466
263367
273268
283169
293169
303070

Chance of precipitation in September

Any precipitation

União da Vitória gets around 137 mm of rain over 10.8 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 36% and peaks near 45% 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
729
830
931
1032
1132
1233
1334
1434
1535
1636
1737
1837
1938
2039
2140
2241
2341
2442
2543
2643
2744
2844
2944
3045

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 52% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1613540
2593650
3593650
4583750
5573760
6563860
7563860
8563860
9553870
10553870
11553870
12543880
13543880
14533890
15533890
165238100
175337100
185237110
195336110
205236120
215236120
225136130
235036140
244936140
254836150
264737160
274637170
284537180
294437180
304337191

Wind in September

Winds average 9 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 9 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
279calm
289calm
299calm
309calm

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 7:07 AM, and sunset from 7:08 PM to 7:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.57:407:08
211.57:397:08
311.57:387:09
411.57:377:09
511.67:367:09
611.67:357:10
711.67:347:10
811.67:327:11
911.77:317:11
1011.77:307:12
1111.77:297:12
1211.77:287:12
1311.87:277:13
1411.87:267:13
1511.87:247:14
1611.87:237:14
1711.97:227:15
1811.97:217:15
1911.97:207:15
2012.07:197:16
2112.07:177:16
2212.07:167:17
2312.07:157:17
2412.17:147:18
2512.17:137:18
2612.17:127:18
2712.17:107:19
2812.27:097:19
2912.27:087:20
3012.27:077:20

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.15 kWh/m².

For context, solar energy here swings from a low near 2.61 kWh/m² to a high of 5.68 kWh/m² in December across the year — September's 4.15 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
224.2Bright
234.2Bright
244.2Bright
254.2Bright
264.2Bright
274.2Bright
284.2Bright
294.2Bright
304.2Bright
Planning a trip in September

Is September a good time to visit União da Vitória?

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

6.4
Sightseeing
3rd-best month of the year
4.4
Beach & pool
8th-best month of the year

September is a reasonable time to visit União da Vitória for sightseeing.

What to pack for União da Vitória in September

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

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

rain gear

UV index in União da Vitória in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in União da Vitória peaks around January 20 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 20UV 15Jul 12UV 5
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar12Extreme
Apr9Very high
May6High
Jun5High
Jul5Moderate
Aug6High
Sep9Very high
Oct10Extreme
Nov13Extreme
Dec13Extreme

Air quality in União da Vitória 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 União da Vitória is worst in September — around 16 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (March, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1515 µg/m³Mar 116 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb6Good
Mar6Good
Apr7Good
May7Good
Jun7Good
Jul8Good
Aug11Good
Sep16Moderate
Oct10Good
Nov7Good
Dec6Good
Location & terrain

Where is União da Vitória?

União da Vitória sits at 26.2°S, 51.1°W, 759 m above sea level, in Brazil. The nearest listed city is Porto União, 1.0 km away.

Topography around União da Vitória

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

Within 3 km, the terrain around União da Vitória has only modest variations in elevation — a maximum elevation change of 228 m around an average of 763 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 536 m; within 80 km, large variations in elevation — a maximum elevation change of 779 m.

The land around União da Vitória is covered by trees (39%) and artificial surfaces (36%) within 3 km, trees (75%) within 16 km, and trees (76%) within 80 km.

3 km
228 m
16 km
536 m
80 km
779 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Porto União 1.0 km · Cruz Machado 35 km · Bituruna 47 km · Caçador 61 km · Canoinhas 70 km · Três Barras 77 km · São Mateus do Sul 81 km · Pinhão 83 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 União da Vitória (-26.23°, -51.0864°, elevation 759 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).