Jacareacanga weather in September

In September, Jacareacanga sees average daytime highs of 32°C and overnight lows near 24°C, with 126 mm of rain across 16.5 wet days and about 12 hours of daylight. It is the 2nd-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 24% 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 hours by month's end. Set against the rest of the year, September is Jacareacanga's 4th-clearest and 3rd-windiest month. For the whole year in context, see Jacareacanga's year-round climate.

Daytime high
32°
2nd warmest
Overnight low
24°
12th coldest
Rainfall
126 mm
16.5 wet days
Daylight
12 hours
6:46 AM – 6:44 PM
Cloud cover
63%
4th clearest
Wind
5 km/h
3rd windiest
Solar energy
5.54 kWh/m²
Travel score
3.2
out of 10

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 Jacareacanga reaches about 32°C in the afternoon and slips back to 24°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 30°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)
13324
23324
33324
43324
53324
63324
73324
83324
93324
103324
113324
123324
133324
143224
153224
163224
173224
183224
193224
203224
213224
223224
233224
243224
253224
263224
273224
283224
293224
303224

How September really feels in Jacareacanga

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.

Jacareacanga weather by month

How September compares with the rest of the year at a glance. September is the 2nd-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 23°36729.512.32.7
Feb30° / 23°32626.912.22.7
Mar30° / 23°37829.5122.6
Apr30° / 23°29827.811.92.7
May30° / 23°18424.411.73.2
Jun31° / 23°6011.211.64.5
Jul32° / 23°407.411.74.6
Aug33° / 24°458.211.83.8
Sep32° / 24°12616.5123.2
Oct32° / 24°18522.512.12.9
Nov31° / 24°24424.912.32.7
Dec30° / 23°3092812.42.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% 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 54%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16040
25842
35743
45545
55446
65347
75149
85050
95050
104951
114753
124753
134654
144654
154654
164456
174456
184357
194258
204159
214159
224159
234060
244060
254060
264060
273961
283961
293961
303763

Chance of precipitation in September

Any precipitation

Jacareacanga gets around 126 mm of rain over 16.5 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 54% and peaks near 63% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
143
244
345
446
547
648
748
849
950
1050
1151
1252
1352
1453
1554
1655
1756
1857
1958
2059
2159
2260
2360
2460
2561
2661
2761
2862
2962
3063

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 62% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11117018
21107019
31106920
41106821
51106722
6196723
7196624
8096625
9096526
10086527
11086428
12086329
13076429
14066430
15066331
16056332
17056233
18046234
19046135
20046036
21045937
22035938
23035839
24035839
25035740
26035641
27035542
28035542
29035443
30025444

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 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over September. Sunrise moves from 6:54 AM to 6:39 AM, and sunset from 6:47 PM to 6:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:546:47
211.96:546:47
311.96:536:47
411.96:536:47
511.96:526:46
611.96:526:46
711.96:516:46
811.96:516:46
911.96:506:46
1011.96:506:46
1111.96:496:45
1211.96:496:45
1311.96:486:45
1412.06:476:45
1512.06:476:45
1612.06:466:44
1712.06:466:44
1812.06:456:44
1912.06:456:44
2012.06:446:44
2112.06:446:43
2212.06:436:43
2312.06:436:43
2412.06:426:43
2512.06:416:43
2612.06:416:42
2712.06:406:42
2812.06:406:42
2912.06:396:42
3012.06:396:42

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.54 kWh/m².

For context, solar energy here swings from a low near 4.34 kWh/m² to a high of 5.55 kWh/m² in October across the year — September's 5.54 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.5Bright
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
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
Planning a trip in September

Hazard calendar for Jacareacanga

In seasonPeak

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

Jacareacanga'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 Jacareacanga?

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

3.2
Sightseeing
4th-best month of the year
5.3
Beach & pool
4th-best month of the year

September is a weaker month for outdoor sightseeing in Jacareacanga.

What to pack for Jacareacanga in September

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

In September, Jacareacanga sees daytime highs around 32°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

light clothesrain gearsun protection

UV index in Jacareacanga 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 Jacareacanga peaks around March 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 16 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 highExtremeMar 15UV 15Sep 16UV 9
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Very high
Sep9Very high
Oct10Very high
Nov11Extreme
Dec12Extreme

Air quality in Jacareacanga 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 Jacareacanga is worst in August — around 123 µg/m³ PM2.5 (unhealthy), about 14.8× the cleanest month (June, 8 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateGoodModerateUnhealthyModerateAug 18112 µg/m³Jun 109 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb12Good
Mar12Moderate
Apr12Good
May9Good
Jun8Good
Jul16Moderate
Aug123Unhealthy
Sep54Poor
Oct24Moderate
Nov22Moderate
Dec16Moderate
Location & terrain

Where is Jacareacanga?

Jacareacanga sits at 6.2°S, 57.8°W, 72 m above sea level, in Brazil. The nearest listed city is Apuí, 260 km away.

ApuíTrairãoNovo ProgressoBorbaItaitubaNova Olinda do NorteNovo AripuanãMaués

Topography around Jacareacanga

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

Within 3 km, the terrain around Jacareacanga has only modest variations in elevation — a maximum elevation change of 100 m around an average of 85 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 169 m; within 80 km, significant variations in elevation — a maximum elevation change of 319 m.

The land around Jacareacanga is covered by trees (48%) and grassland (28%) within 3 km, trees (81%) within 16 km, and trees (96%) within 80 km.

3 km
100 m
16 km
169 m
80 km
319 m
treesgrasslandartificial surfaceswater
September weather nearby: Apuí 260 km · Trairão 271 km · Novo Progresso 281 km · Borba 288 km · Itaituba 292 km · Nova Olinda do Norte 299 km · Novo Aripuanã 315 km · Maués 316 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 Jacareacanga (-6.2222°, -57.7528°, elevation 72 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).