Três Coroas weather in September

In September, Três Coroas sees average daytime highs of 21°C and overnight lows near 11°C, with 178 mm of rain across 13.2 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 21°C through the month. The sky is clear or mostly clear about 30% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 24 min at the start of September to 12 h 18 min by month's end. Set against the rest of the year, September is Três Coroas's 9th-clearest and 2nd-windiest month. For the whole year in context, see Três Coroas's year-round climate.

Daytime high
21°
8th warmest
Overnight low
11°
5th coldest
Rainfall
178 mm
13.2 wet days
Daylight
11 h 48 min
7:23 AM – 7:12 PM
Cloud cover
62%
9th clearest
Wind
9 km/h
2nd windiest
Solar energy
4.12 kWh/m²
Travel score
5.9
out of 10

Três Coroas 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 21°C through the month.

A typical September day in Três Coroas reaches about 21°C in the afternoon and slips back to 11°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 28°C. Set against its neighbours, September runs about 1°C warmer than August and about 2°C cooler than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12111
22111
32111
42111
52111
62111
72111
82111
92111
102111
112111
122111
132111
142111
152111
162111
172111
182111
192111
202111
212111
222111
232111
242112
252112
262112
272112
282112
292112
302112

Três Coroas 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°21818.813.75.2
Feb27° / 18°1841813.15.1
Mar26° / 17°16515.912.25.9
Apr23° / 14°13012.411.36.5
May20° / 11°14111.310.56.1
Jun18° / 13311.110.15.8
Jul18° / 17011.510.35.8
Aug20° / 10°14211.210.96.3
Sep21° / 11°17813.211.85.9
Oct23° / 13°21715.512.75.9
Nov25° / 15°15813.913.56.3
Dec27° / 17°18615.913.95.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 12% of September, with mostly cloudy or overcast conditions the remaining 57%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14852
24753
34753
44654
54456
64456
74357
84357
94357
104357
114357
124258
134357
144258
154258
164258
174258
184258
194258
204159
214258
224258
234258
244258
254258
264159
273961
283961
293961
303763

Chance of precipitation in September

Any precipitation

Três Coroas gets around 178 mm of rain over 13.2 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 44% and peaks near 49% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
137
238
338
439
540
640
741
841
942
1042
1143
1243
1343
1444
1544
1645
1745
1846
1946
2046
2146
2247
2347
2447
2547
2648
2748
2848
2948
3049

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 (%)
15928130
25828140
35828140
45728150
55728150
65728150
75629150
85529160
95529160
105430160
115430160
125330170
135231170
145231170
155131180
165131180
175131180
185131180
195131180
205131180
215131180
225031190
235031190
245030191
254930201
264930211
274830211
284830221
294729222
304629232

Wind in September

Winds average 9 km/h in September.

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 24 min at the start of September to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over September. Sunrise moves from 7:42 AM to 7:05 AM, and sunset from 7:04 PM to 7:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.47:427:04
211.47:407:05
311.47:397:05
411.57:387:06
511.57:377:06
611.57:357:07
711.67:347:07
811.67:337:08
911.67:327:08
1011.67:307:09
1111.77:297:10
1211.77:287:10
1311.77:277:11
1411.87:257:11
1511.87:247:12
1611.87:237:12
1711.97:217:13
1811.97:207:13
1911.97:197:14
2011.97:187:14
2112.07:167:15
2212.07:157:15
2312.07:147:16
2412.17:127:17
2512.17:117:17
2612.17:107:18
2712.27:097:18
2812.27:077:19
2912.27:067:19
3012.37:057:20

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.12 kWh/m².

For context, solar energy here swings from a low near 2.49 kWh/m² to a high of 6.32 kWh/m² in December across the year — September's 4.12 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
13.9Moderate
23.9Moderate
33.9Moderate
43.9Moderate
53.9Moderate
63.9Moderate
74.0Moderate
84.0Moderate
94.0Moderate
104.0Bright
114.0Bright
124.0Bright
134.0Bright
144.1Bright
154.1Bright
164.1Bright
174.1Bright
184.2Bright
194.2Bright
204.2Bright
214.2Bright
224.2Bright
234.3Bright
244.3Bright
254.3Bright
264.3Bright
274.3Bright
284.4Bright
294.4Bright
304.4Bright
Planning a trip in September

Is September a good time to visit Três Coroas?

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

5.9
Sightseeing
5th-best month of the year
3.7
Beach & pool
8th-best month of the year

September is a reasonable time to visit Três Coroas for sightseeing.

What to pack for Três Coroas in September

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

In September, Três Coroas sees daytime highs around 21°C and nights near 11°C. Worth packing: rain gear. About 13 days see rain.

rain gear

UV index in Três Coroas in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Três Coroas peaks around January 17 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 17UV 13Jun 21UV 4
UV index (midday)Level
Jan13Extreme
Feb13Extreme
Mar10Very high
Apr8Very high
May5Moderate
Jun4Moderate
Jul4Moderate
Aug5High
Sep8Very high
Oct9Very high
Nov12Extreme
Dec13Extreme

Air quality in Três Coroas 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 Três Coroas is worst in August — around 22 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (February, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 1822 µg/m³Feb 149 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb9Good
Mar10Good
Apr11Good
May12Moderate
Jun12Good
Jul15Moderate
Aug22Moderate
Sep18Moderate
Oct12Good
Nov11Good
Dec10Good
Location & terrain

Where is Três Coroas?

Três Coroas sits at 29.5°S, 50.8°W, 53 m above sea level, in Brazil. The nearest listed city is Igrejinha, 7.0 km away.

Topography around Três Coroas

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

Within 3 km, the terrain around Três Coroas has significant variations in elevation — a maximum elevation change of 496 m around an average of 156 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 921 m; within 80 km, large variations in elevation — a maximum elevation change of 1,086 m.

The land around Três Coroas is covered by trees (75%) within 3 km, trees (81%) within 16 km, and trees (55%) and grassland (29%) within 80 km.

3 km
496 m
16 km
921 m
80 km
1,086 m
treesgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Igrejinha 7.0 km · Parobé 14 km · Nova Hartz 14 km · Taquara 15 km · Gramado 18 km · Canela 18 km · São Francisco de Paula 20 km · Rolante 25 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 Três Coroas (-29.5169°, -50.7778°, elevation 53 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).