Marau weather in September

In September, Marau sees average daytime highs of 21°C and overnight lows near 12°C, with 155 mm of rain across 11 wet days and about 11.8 hours of daylight. It is the 8th-warmest and 8th-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 35% 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 12 min by month's end. Set against the rest of the year, September is Marau's 7th-clearest and 1st-windiest month. For the whole year in context, see Marau's year-round climate.

Daytime high
21°
8th warmest
Overnight low
12°
5th coldest
Rainfall
155 mm
11 wet days
Daylight
11 h 48 min
7:28 AM – 7:18 PM
Cloud cover
59%
7th clearest
Wind
13 km/h
1st windiest
Solar energy
4.39 kWh/m²
Travel score
6.4
out of 10

Marau 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 Marau reaches about 21°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 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
182112
192112
202112
212112
222112
232112
242212
252212
262212
272212
282212
292212
302212

Marau weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 18°16616.213.65.5
Feb27° / 18°15715.1135.5
Mar26° / 17°13713.112.26.2
Apr24° / 14°13810.411.36.8
May20° / 11°1569.510.66.4
Jun18° / 14410.110.25.9
Jul18° / 16410.410.46.0
Aug20° / 10°1159.2116.6
Sep21° / 12°1551111.86.4
Oct24° / 14°22313.912.76.2
Nov26° / 15°15712.213.46.4
Dec27° / 17°17514.913.85.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% 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 53%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15347
25347
35248
45149
55050
64951
74951
84852
94852
104753
114654
124753
134753
144753
154753
164753
174654
184654
194654
204654
214654
224654
234654
244456
254456
264357
274258
284159
294060
303961

Chance of precipitation in September

Any precipitation

Marau gets around 155 mm of rain over 11 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 37% and peaks near 42% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
129
229
330
430
531
631
732
833
933
1034
1135
1235
1336
1437
1538
1638
1739
1840
1940
2040
2141
2241
2341
2441
2541
2641
2741
2841
2941
3042

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 53% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
15832100
25832100
35732110
45732110
55632120
65632120
75632120
85532130
95631130
105531140
115531140
125431150
135431150
145331160
155331160
165331160
175331160
185331160
195331160
205331160
215231170
225231170
235231170
245131180
255131180
264931190
274831201
284831201
294732211
304632211

Wind in September

Winds average 13 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 13 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 24 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 48 minutes over September. Sunrise moves from 7:46 AM to 7:11 AM, and sunset from 7:11 PM to 7:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.47:467:11
211.47:457:11
311.57:447:12
411.57:437:12
511.57:427:13
611.57:407:13
711.67:397:14
811.67:387:14
911.67:377:15
1011.77:367:15
1111.77:347:16
1211.77:337:16
1311.77:327:17
1411.87:317:17
1511.87:297:18
1611.87:287:18
1711.97:277:19
1811.97:267:19
1911.97:247:20
2011.97:237:20
2112.07:227:21
2212.07:217:21
2312.07:197:22
2412.17:187:22
2512.17:177:23
2612.17:167:23
2712.27:157:24
2812.27:137:24
2912.27:127:25
3012.27:117:25

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.39 kWh/m².

For context, solar energy here swings from a low near 2.57 kWh/m² to a high of 6.47 kWh/m² in December across the year — September's 4.39 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.1Bright
24.2Bright
34.2Bright
44.2Bright
54.2Bright
64.2Bright
74.2Bright
84.3Bright
94.3Bright
104.3Bright
114.3Bright
124.3Bright
134.3Bright
144.3Bright
154.4Bright
164.4Bright
174.4Bright
184.4Bright
194.4Bright
204.5Bright
214.5Bright
224.5Bright
234.5Bright
244.5Bright
254.5Bright
264.6Bright
274.6Bright
284.6Bright
294.6Bright
304.6Bright
Planning a trip in September

Is September a good time to visit Marau?

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
4.1
Beach & pool
8th-best month of the year

September is a reasonable time to visit Marau for sightseeing.

What to pack for Marau in September

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

In September, Marau sees daytime highs around 21°C and nights near 12°C. Worth packing: rain gear. About 11 days see rain.

rain gear

UV index in Marau 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 Marau peaks around January 20 at about 14 (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 highHighModerateHighVery highExtremeJan 20UV 14Jun 21UV 4
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar11Extreme
Apr8Very high
May5High
Jun4Moderate
Jul4Moderate
Aug6High
Sep8Very high
Oct7High
Nov12Extreme
Dec13Extreme

Air quality in Marau 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 Marau is worst in September — around 15 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (March, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1514 µg/m³Mar 116 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb6Good
Mar6Good
Apr7Good
May7Good
Jun7Good
Jul8Good
Aug11Good
Sep15Moderate
Oct9Good
Nov7Good
Dec6Good
Location & terrain

Where is Marau?

Marau sits at 28.4°S, 52.2°W, 553 m above sea level, in Brazil. The nearest listed city is Passo Fundo, 29 km away.

Topography around Marau

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

Within 3 km, the terrain around Marau has only modest variations in elevation — a maximum elevation change of 204 m around an average of 576 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 383 m; within 80 km, large variations in elevation — a maximum elevation change of 877 m.

The land around Marau is covered by trees (41%), cropland (26%) and artificial surfaces (23%) within 3 km, cropland (60%) and trees (32%) within 16 km, and cropland (57%) and trees (37%) within 80 km.

3 km
204 m
16 km
383 m
80 km
877 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Passo Fundo 29 km · Serafina Corrêa 39 km · Tapejara 46 km · Soledade 51 km · Guaporé 53 km · Carazinho 60 km · Não-Me-Toque 61 km · Getúlio Vargas 62 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 Marau (-28.4492°, -52.2°, elevation 553 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).