Pauini weather in September

In September, Pauini sees average daytime highs of 33°C and overnight lows near 23°C, with 92 mm of rain across 15.4 wet days and about 12 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 54 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Pauini's 4th-clearest and 2nd-windiest month. For the whole year in context, see Pauini's year-round climate.

Daytime high
33°
1st warmest
Overnight low
23°
5th coldest
Rainfall
92 mm
15.4 wet days
Daylight
12 hours
6:23 AM – 6:21 PM
Cloud cover
61%
4th clearest
Wind
5 km/h
2nd windiest
Solar energy
5.46 kWh/m²
Travel score
3.2
out of 10

Pauini 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 Pauini reaches about 33°C in the afternoon and slips back to 23°C overnight — a 10°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.

20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13323
23323
33323
43323
53323
63323
73323
83323
93323
103323
113323
123323
133323
143323
153323
163323
173323
183323
193323
203323
213323
223323
233323
243323
253323
263323
273323
283323
293323
303323

How September really feels in Pauini

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.

Pauini 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°27828.212.42.7
Feb30° / 23°2652612.32.6
Mar30° / 23°28628.412.12.6
Apr30° / 23°2082611.82.8
May30° / 23°13621.811.73.5
Jun30° / 22°6012.811.64.6
Jul31° / 21°357.311.65.1
Aug32° / 22°498.911.74.0
Sep33° / 23°9215.4123.2
Oct32° / 23°14921.112.22.8
Nov31° / 23°20724.712.42.6
Dec31° / 23°27028.112.42.6

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 21% 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 (%)
16139
26040
35941
45842
55743
65644
75545
85446
95248
105248
115149
124951
134951
144852
154654
164654
174555
184555
194357
204258
214159
224159
234159
244060
253961
263862
273961
283862
293763
303664

Chance of precipitation in September

Any precipitation

Pauini gets around 92 mm of rain over 15.4 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 51% and peaks near 60% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
141
241
342
443
543
644
745
845
946
1046
1147
1248
1348
1449
1550
1651
1752
1853
1954
2055
2155
2256
2357
2457
2558
2659
2759
2860
2960
3060

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 71% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
12397214
22397214
32397214
42387215
51387315
61387315
71387216
81377316
91377217
101277317
111277218
120267319
130267319
140267220
150267220
160257221
170157222
180157222
190157123
200157024
210147124
220147025
230147025
240146926
250047026
260047026
270046927
280037027
290037027
300036928

Wind in September

Winds average 5 km/h in September.

Across September, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 54 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 12 minutes over September. Sunrise moves from 6:32 AM to 6:15 AM, and sunset from 6:23 PM to 6:19 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:326:23
211.96:326:23
311.96:316:23
411.96:306:23
511.96:306:23
611.96:296:22
711.96:296:22
811.96:286:22
911.96:286:22
1011.96:276:22
1111.96:266:22
1211.96:266:22
1311.96:256:21
1411.96:256:21
1512.06:246:21
1612.06:236:21
1712.06:236:21
1812.06:226:21
1912.06:226:21
2012.06:216:20
2112.06:216:20
2212.06:206:20
2312.06:196:20
2412.06:196:20
2512.06:186:20
2612.06:186:20
2712.06:176:19
2812.06:176:19
2912.16:166:19
3012.16:156:19

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.46 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.1 kWh/m² to a high of 5.46 kWh/m² in September across the year — September's 5.46 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.4Bright
115.4Bright
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 Pauini

In seasonPeak

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

Pauini's rainy season runs October–May, 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 Pauini?

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
5.5
Beach & pool
4th-best month of the year

September is a weaker month for outdoor sightseeing in Pauini.

What to pack for Pauini in September

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

In September, Pauini sees daytime highs around 33°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 15 days see rain.

light clothesrain gearsun protection

UV index in Pauini 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 Pauini peaks around March 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 9 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighExtremeMar 13UV 15Sep 9UV 7
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun9Very high
Jul9Very high
Aug7High
Sep7High
Oct12Extreme
Nov13Extreme
Dec13Extreme

Air quality in Pauini 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 Pauini is worst in September — around 40 µg/m³ PM2.5 (poor), about 4.3× the cleanest month (June, 9 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModeratePoorModerateSep 940 µg/m³Jun 99 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb13Moderate
Mar14Moderate
Apr11Good
May10Good
Jun9Good
Jul12Moderate
Aug39Poor
Sep40Poor
Oct15Moderate
Nov14Moderate
Dec13Moderate
Location & terrain

Where is Pauini?

Pauini sits at 7.7°S, 67.0°W, 104 m above sea level, in Brazil. The nearest listed city is Boca do Acre, 124 km away.

Rio BrancoSenador GuiomardPlácido de CastroCanutama

Topography around Pauini

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

Within 3 km, the terrain around Pauini has only modest variations in elevation — a maximum elevation change of 75 m around an average of 99 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 82 m; within 80 km, only modest variations in elevation — a maximum elevation change of 108 m.

The land around Pauini is covered by trees (73%) within 3 km, trees (89%) within 16 km, and trees (99%) within 80 km.

3 km
75 m
16 km
82 m
80 km
108 m
treesgrasslandartificial surfaceswater
September weather nearby: Boca do Acre 124 km · Porto Acre 217 km · Sena Madureira 239 km · Lábrea 245 km · Rio Branco 268 km · Senador Guiomard 283 km · Plácido de Castro 292 km · Canutama 315 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 Pauini (-7.7136°, -66.9764°, elevation 104 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).