Lagoa da Confusão weather in September

In September, Lagoa da Confusão sees average daytime highs of 36°C and overnight lows near 24°C, with 23 mm of rain across 4 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 36°C through the month. The sky is clear or mostly clear about 52% of the time in September, and the air most often feels muggy.

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 Lagoa da Confusão's 4th-clearest and 4th-windiest month. For the whole year in context, see Lagoa da Confusão's year-round climate.

Daytime high
36°
1st warmest
Overnight low
24°
12th coldest
Rainfall
23 mm
4 wet days
Daylight
11 h 54 min
6:15 AM – 6:11 PM
Cloud cover
43%
4th clearest
Wind
8 km/h
4th windiest
Solar energy
6.02 kWh/m²
Travel score
2.6
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 36°C through the month.

A typical September day in Lagoa da Confusão reaches about 36°C in the afternoon and slips back to 24°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 33°C and 38°C. Set against its neighbours, September runs on par with August and about 2°C warmer than October.

20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13624
23624
33624
43624
53624
63624
73624
83624
93624
103624
113624
123624
133624
143624
153624
163624
173624
183624
193624
203624
213524
223524
233524
243524
253524
263524
273524
283524
293524
303524

How September really feels in Lagoa da Confusão

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.

Lagoa da Confusão 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
Jan31° / 23°32127.812.62.7
Feb31° / 23°28025.112.42.7
Mar31° / 23°28726.512.12.8
Apr32° / 23°17819.711.83.2
May33° / 23°477.311.54.0
Jun33° / 22°20.611.44.4
Jul34° / 22°0011.44.1
Aug35° / 23°20.511.63.0
Sep36° / 24°23411.92.6
Oct33° / 24°12415.412.22.8
Nov32° / 23°23923.112.52.8
Dec31° / 23°27625.912.62.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 52% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 19% of September, with mostly cloudy or overcast conditions the remaining 28%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18218
28119
38020
47921
57921
67921
77723
87723
97723
107624
117624
127525
137426
147426
157327
167327
177228
187228
197129
206931
216931
226832
236634
246535
256535
266436
276238
286139
296040
305842

Chance of precipitation in September

Any precipitation

Lagoa da Confusão gets around 23 mm of rain over 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 13% and peaks near 30% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
14
24
35
45
55
66
76
86
96
107
117
128
138
149
1510
1611
1712
1813
1914
2016
2117
2219
2320
2422
2524
2625
2726
2828
2929
3030

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 28% of days. Sticky, muggy-or-worse air turns up on roughly 47% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
12133221940
22132222050
32132222150
42031222160
52030222160
62030222270
72029222270
81929222280
91928222390
101828222390
1117272224100
1217262224110
1316252225120
1415242226130
1514232227140
1613222228150
1712202229170
1811192130180
1911172131200
2010162032220
219142033250
228121934270
237111834300
246101735330
25581635350
26571535380
27461435410
28361334430
29351334460
30241233481

Wind in September

Winds average 8 km/h in September.

Across September, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

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 6:24 AM to 6:05 AM, and sunset from 6:12 PM to 6:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:246:12
211.86:246:12
311.86:236:12
411.86:236:12
511.86:226:12
611.86:216:12
711.86:216:12
811.96:206:12
911.96:196:12
1011.96:196:11
1111.96:186:11
1211.96:176:11
1311.96:176:11
1411.96:166:11
1511.96:156:11
1611.96:156:11
1712.06:146:11
1812.06:136:11
1912.06:136:11
2012.06:126:11
2112.06:116:11
2212.06:116:11
2312.06:106:11
2412.06:096:11
2512.06:096:11
2612.06:086:10
2712.16:076:10
2812.16:076:10
2912.16:066:10
3012.16:056:10

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.02 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.88 kWh/m² to a high of 6.02 kWh/m² in September across the year — September's 6.02 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.9Bright
26.0Bright
36.0Bright
46.0Bright
56.0Bright
66.0Intense
76.0Intense
86.0Intense
96.0Intense
106.0Intense
116.0Intense
126.0Intense
136.1Intense
146.1Intense
156.1Intense
166.1Intense
176.0Intense
186.0Intense
196.0Intense
206.0Intense
216.0Intense
226.0Intense
236.0Intense
246.0Bright
256.0Bright
266.0Bright
276.0Bright
286.0Bright
296.0Bright
306.0Bright
Planning a trip in September

Hazard calendar for Lagoa da Confusão

In seasonPeak

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

Lagoa da Confusão's monsoon runs November–April, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Lagoa da Confusão?

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

2.6
Sightseeing
12th-best month of the year
5.9
Beach & pool
5th-best month of the year

September is a weaker month for outdoor sightseeing in Lagoa da Confusão.

What to pack for Lagoa da Confusão in September

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

In September, Lagoa da Confusão sees daytime highs around 36°C and nights near 24°C. Pack light clothes and sun protection. About 4 days see rain.

light clothessun protection

UV index in Lagoa da Confusão in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Lagoa da Confusão peaks around February 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 15UV 15Jun 19UV 8
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar14Extreme
Apr12Extreme
May10Very high
Jun8Very high
Jul9Very high
Aug10Extreme
Sep12Extreme
Oct10Extreme
Nov12Extreme
Dec12Extreme

Air quality in Lagoa da Confusão 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 Lagoa da Confusão is worst in September — around 52 µg/m³ PM2.5 (poor), about 5.3× the cleanest month (February, 10 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodGoodModeratePoorModerateSep 1749 µg/m³Feb 1110 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb10Good
Mar11Good
Apr10Good
May13Moderate
Jun11Good
Jul11Good
Aug23Moderate
Sep52Poor
Oct32Moderate
Nov16Moderate
Dec13Moderate
Location & terrain

Where is Lagoa da Confusão?

Lagoa da Confusão sits at 10.8°S, 49.6°W, 188 m above sea level, in Brazil. The nearest listed city is Paraíso do Tocantins, 108 km away.

Topography around Lagoa da Confusão

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

Within 3 km, the terrain around Lagoa da Confusão has only modest variations in elevation — a maximum elevation change of 46 m around an average of 184 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 132 m; within 80 km, significant variations in elevation — a maximum elevation change of 289 m.

The land around Lagoa da Confusão is covered by grassland (40%) and trees (30%) within 3 km, grassland (42%) and trees (36%) within 16 km, and grassland (48%) and trees (44%) within 80 km.

3 km
46 m
16 km
132 m
80 km
289 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Paraíso do Tocantins 108 km · Formoso do Araguaia 112 km · Gurupi 120 km · Porto Nacional 132 km · Palmas 158 km · Santana do Araguaia 181 km · Vila Rica 185 km · Miracema do Tocantins 192 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 Lagoa da Confusão (-10.7936°, -49.6236°, elevation 188 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).