Sena Madureira weather in September

In September, Sena Madureira sees average daytime highs of 33°C and overnight lows near 22°C, with 103 mm of rain across 15.8 wet days and about 11.9 hours of daylight. It is the 1st-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 26% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Sena Madureira's 4th-clearest and 2nd-windiest month. For the whole year in context, see Sena Madureira's year-round climate.

Daytime high
33°
1st warmest
Overnight low
22°
5th coldest
Rainfall
103 mm
15.8 wet days
Daylight
12 hours
5:30 AM – 5:28 PM
Cloud cover
61%
4th clearest
Wind
6 km/h
2nd windiest
Solar energy
5.51 kWh/m²
Travel score
3.2
out of 10

Sena Madureira 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 33°C through the month.

A typical September day in Sena Madureira reaches about 33°C in the afternoon and slips back to 22°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 35°C. Set against its neighbours, September runs on par with August and on par with October.

15°20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13322
23322
33322
43322
53322
63322
73322
83322
93322
103322
113322
123322
133322
143322
153322
163322
173322
183322
193322
203322
213322
223322
233322
243322
253322
263322
273322
283222
293222
303222

How September really feels in Sena Madureira

Once humidity and wind are folded in, September averages 30 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
30
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Sena Madureira weather by month

How September compares with the rest of the year at a glance. September is the 1st-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 23°26227.612.52.7
Feb30° / 23°25525.312.32.7
Mar30° / 23°27928.412.12.7
Apr30° / 22°18624.611.83.0
May30° / 22°10919.211.64.0
Jun30° / 21°5311.711.55.0
Jul31° / 20°327.111.55.2
Aug32° / 21°478.711.74.2
Sep33° / 22°10315.811.93.2
Oct32° / 23°17322.112.22.8
Nov31° / 23°22024.612.42.8
Dec31° / 23°24826.912.52.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 22% of September, with mostly cloudy or overcast conditions the remaining 52%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16238
26139
36040
46040
55842
65743
75644
85545
95446
105347
115347
125149
135050
145050
154753
164753
174654
184555
194456
204456
214357
224159
234060
244060
253961
263862
273664
283664
293664
303466

Chance of precipitation in September

Any precipitation

Sena Madureira gets around 103 mm of rain over 15.8 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 53% and peaks near 62% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
141
242
342
443
544
645
746
847
948
1049
1149
1250
1351
1452
1553
1654
1754
1855
1956
2057
2157
2258
2359
2459
2560
2660
2761
2861
2961
3062

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the oppressive band about 79% of days. Sticky, muggy-or-worse air turns up on roughly 95% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
113613743
213612753
313612753
413611754
513611754
613510774
702510794
802510785
902510785
100249805
110249796
120249796
130249796
140249796
150139816
160139816
170139807
180139807
190139807
200138817
210138817
220138808
230138808
240138808
250137809
260127819
2701278010
2800268210
2900268111
3000268012

Wind in September

Winds average 6 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 48 min at the start of September to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over September. Sunrise moves from 5:40 AM to 5:22 AM, and sunset from 5:29 PM to 5:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.85:405:29
211.85:395:29
311.85:385:29
411.85:385:29
511.95:375:29
611.95:375:29
711.95:365:29
811.95:355:28
911.95:355:28
1011.95:345:28
1111.95:345:28
1211.95:335:28
1311.95:325:28
1411.95:325:28
1511.95:315:28
1612.05:305:28
1712.05:305:27
1812.05:295:27
1912.05:295:27
2012.05:285:27
2112.05:275:27
2212.05:275:27
2312.05:265:27
2412.05:255:27
2512.05:255:27
2612.05:245:26
2712.05:245:26
2812.15:235:26
2912.15:225:26
3012.15:225:26

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.51 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.17 kWh/m² to a high of 5.51 kWh/m² in September across the year — September's 5.51 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.4Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.5Bright
155.5Bright
165.5Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
Planning a trip in September

Hazard calendar for Sena Madureira

In seasonPeak

None of Sena Madureira's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Sena Madureira's rainy season runs October–April, 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 Sena Madureira?

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

3.2
Sightseeing
5th-best month of the year
5.4
Beach & pool
4th-best month of the year

September is a weaker month for outdoor sightseeing in Sena Madureira.

What to pack for Sena Madureira in September

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

In September, Sena Madureira sees daytime highs around 33°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.

light clothesrain gearsun protection

UV index in Sena Madureira 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 Sena Madureira peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 10 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeJan 21UV 15Sep 10UV 7
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun9Very high
Jul8Very high
Aug8Very high
Sep7High
Oct12Extreme
Nov13Extreme
Dec13Extreme

Air quality in Sena Madureira 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 Sena Madureira is worst in September — around 75 µg/m³ PM2.5 (unhealthy), about 10.8× the cleanest month (June, 7 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodUnhealthyModerateGoodSep 1470 µg/m³Jun 117 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb13Moderate
Mar13Moderate
Apr10Good
May8Good
Jun7Good
Jul11Good
Aug45Poor
Sep75Unhealthy
Oct19Moderate
Nov13Moderate
Dec10Good
Location & terrain

Where is Sena Madureira?

Sena Madureira sits at 9.1°S, 68.7°W, 144 m above sea level, in Brazil. The nearest listed city is Porto Acre, 138 km away.

Topography around Sena Madureira

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

Within 3 km, the terrain around Sena Madureira has only modest variations in elevation — a maximum elevation change of 54 m around an average of 145 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 95 m; within 80 km, only modest variations in elevation — a maximum elevation change of 176 m.

The land around Sena Madureira is covered by trees (45%) and grassland (41%) within 3 km, trees (58%) and grassland (40%) within 16 km, and trees (90%) within 80 km.

3 km
54 m
16 km
95 m
80 km
176 m
treesgrasslandartificial surfaceswater
September weather nearby: Porto Acre 138 km · Rio Branco 139 km · Boca do Acre 144 km · Senador Guiomard 158 km · Xapuri 178 km · Feijó 210 km · Plácido de Castro 216 km · Brasiléia 217 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 Sena Madureira (-9.0634°, -68.6724°, elevation 144 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).