Tarauacá weather in September

In September, Tarauacá sees average daytime highs of 32°C and overnight lows near 22°C, with 116 mm of rain across 17.8 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 32°C through the month. The sky is clear or mostly clear about 20% 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 Tarauacá's 4th-clearest and 2nd-windiest month. For the whole year in context, see Tarauacá's year-round climate.

Daytime high
32°
1st warmest
Overnight low
22°
5th coldest
Rainfall
116 mm
17.8 wet days
Daylight
12 hours
5:39 AM – 5:36 PM
Cloud cover
64%
4th clearest
Wind
5 km/h
2nd windiest
Solar energy
5.41 kWh/m²
Travel score
3.2
out of 10

Tarauacá 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 32°C through the month.

A typical September day in Tarauacá reaches about 32°C in the afternoon and slips back to 22°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 28°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)
13222
23222
33222
43222
53222
63222
73222
83222
93222
103222
113222
123222
133222
143222
153222
163222
173222
183222
193222
203222
213222
223222
233222
243222
253222
263222
273222
283222
293222
303222

How September really feels in Tarauacá

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.

Tarauacá 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°24827.912.42.9
Feb30° / 23°24124.912.32.9
Mar30° / 23°2892812.12.9
Apr30° / 22°20224.311.83.2
May29° / 22°1192011.64.0
Jun29° / 21°6613.911.54.7
Jul30° / 20°449.811.65.0
Aug32° / 21°6210.711.74.1
Sep32° / 22°11617.8123.2
Oct32° / 23°16922.712.22.9
Nov31° / 23°22024.312.42.9
Dec30° / 23°24927.412.52.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 25% of September, with mostly cloudy or overcast conditions the remaining 55%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15842
25743
35545
45545
55446
65347
75248
85149
95050
104951
114852
124654
134654
144555
154456
164357
174357
184159
194060
204060
213961
223961
233961
243862
253763
263763
273763
283664
293664
303565

Chance of precipitation in September

Any precipitation

Tarauacá gets around 116 mm of rain over 17.8 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 58% and peaks near 65% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
148
249
349
450
551
652
753
854
955
1056
1157
1257
1358
1459
1560
1660
1761
1862
1962
2062
2162
2263
2363
2463
2563
2664
2764
2865
2965
3065

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 86% of days. Sticky, muggy-or-worse air turns up on roughly 97% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
13414781
23413791
32313811
42312821
52312821
62311831
72311831
82210851
92210851
102210842
11229852
12129862
13129862
14129862
15128872
16128872
17128872
18128872
19128872
20128872
21018892
22017902
23017902
24017902
25017902
26016912
27016912
28016912
29016912
30015922

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 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
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 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 5:48 AM to 5:30 AM, and sunset from 5:38 PM to 5:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.85:485:38
211.85:475:38
311.95:465:38
411.95:465:38
511.95:455:38
611.95:455:37
711.95:445:37
811.95:445:37
911.95:435:37
1011.95:425:37
1111.95:425:37
1211.95:415:37
1311.95:415:36
1411.95:405:36
1511.95:395:36
1612.05:395:36
1712.05:385:36
1812.05:385:36
1912.05:375:36
2012.05:365:35
2112.05:365:35
2212.05:355:35
2312.05:355:35
2412.05:345:35
2512.05:335:35
2612.05:335:35
2712.05:325:35
2812.05:325:34
2912.15:315:34
3012.15:305:34

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.41 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.18 kWh/m² to a high of 5.41 kWh/m² in September across the year — September's 5.41 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.3Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.4Bright
115.4Bright
125.4Bright
135.4Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.4Bright
195.4Bright
205.4Bright
215.4Bright
225.4Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
Planning a trip in September

Hazard calendar for Tarauacá

In seasonPeak

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

Tarauacá'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 Tarauacá?

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
5.2
Beach & pool
5th-best month of the year

September is a weaker month for outdoor sightseeing in Tarauacá.

What to pack for Tarauacá in September

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

In September, Tarauacá sees daytime highs around 32°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 18 days see rain.

light clothesrain gearsun protection

UV index in Tarauacá 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 Tarauacá peaks around February 13 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 24 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 13UV 16Aug 24UV 9
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun9Very high
Jul9Very high
Aug9Very high
Sep9Very high
Oct13Extreme
Nov13Extreme
Dec13Extreme

Air quality in Tarauacá 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 Tarauacá is worst in September — around 80 µg/m³ PM2.5 (unhealthy), about 11.8× the cleanest month (June, 7 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodUnhealthyModerateGoodSep 1276 µg/m³Jun 117 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb13Moderate
Mar12Moderate
Apr10Good
May8Good
Jun7Good
Jul10Good
Aug57Unhealthy
Sep80Unhealthy
Oct15Moderate
Nov12Good
Dec10Good
Location & terrain

Where is Tarauacá?

Tarauacá sits at 8.2°S, 70.8°W, 173 m above sea level, in Brazil. The nearest listed city is Feijó, 45 km away.

Sena MadureiraXapuri

Topography around Tarauacá

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

Within 3 km, the terrain around Tarauacá has only modest variations in elevation — a maximum elevation change of 41 m around an average of 179 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 170 m; within 80 km, only modest variations in elevation — a maximum elevation change of 236 m.

The land around Tarauacá is covered by trees (46%) and grassland (39%) within 3 km, trees (66%) and grassland (32%) within 16 km, and trees (93%) within 80 km.

3 km
41 m
16 km
170 m
80 km
236 m
treesgrasslandartificial surfaceswater
September weather nearby: Feijó 45 km · Ipixuna 160 km · Eirunepé 194 km · Cruzeiro do Sul 219 km · Marechal Thaumaturgo 239 km · Mâncio Lima 242 km · Sena Madureira 251 km · Xapuri 372 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 Tarauacá (-8.1614°, -70.7656°, elevation 173 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).