Tocantins weather in September

In September, Tocantins sees average daytime highs of 27°C and overnight lows near 17°C, with 59 mm of rain across 8.4 wet days and about 11.9 hours of daylight. It is the 8th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 34% of the time in September, and the air most often feels humid.

Daylight stretches from about 11 h 36 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is Tocantins's 5th-clearest and 1st-windiest month. For the whole year in context, see Tocantins's year-round climate.

Daytime high
27°
8th warmest
Overnight low
17°
5th coldest
Rainfall
59 mm
8.4 wet days
Daylight
11 h 54 min
6:50 AM – 6:43 PM
Cloud cover
58%
5th clearest
Wind
8 km/h
1st windiest
Solar energy
4.7 kWh/m²
Travel score
6.7
out of 10

Tocantins 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 27°C through the month.

A typical September day in Tocantins reaches about 27°C in the afternoon and slips back to 17°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 32°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C cooler than October.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12716
22716
32716
42716
52716
62716
72716
82716
92716
102716
112716
122717
132717
142717
152717
162717
172717
182717
192717
202717
212717
222717
232717
242717
252717
262717
272717
282717
292718
302818

How September really feels in Tocantins

Once humidity and wind are folded in, September averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Tocantins weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 21°22817.713.14.0
Feb31° / 21°13113.412.74.1
Mar30° / 21°16516.712.14.3
Apr28° / 19°719.411.56.0
May26° / 16°386.1117.2
Jun25° / 15°143.410.77.9
Jul25° / 14°153.210.88.1
Aug26° / 15°203.911.37.7
Sep27° / 17°598.411.96.7
Oct28° / 18°10311.712.55.6
Nov28° / 20°22017.5134.8
Dec29° / 21°24320.313.34.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 13% 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
26139
36040
46040
55941
65842
75644
85545
95347
105248
115050
124951
134753
144654
154654
164555
174456
184357
194258
204060
213961
223862
233862
243763
253763
263664
273664
283664
293565
303565

Chance of precipitation in September

Any precipitation

Tocantins gets around 59 mm of rain over 8.4 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 28% and peaks near 35% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
118
219
319
420
520
621
722
823
924
1024
1125
1226
1327
1428
1529
1630
1730
1831
1932
2032
2133
2233
2333
2434
2534
2634
2734
2835
2935
3035

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 40% of days. Sticky, muggy-or-worse air turns up on roughly 13% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11845343
21844344
31844344
41744354
51744354
61643355
71643365
81542376
91542376
101441387
111341398
121240408
131039419
1410394210
159384211
168374312
178364313
187354413
197344414
207334415
217324416
227314418
237304419
247294420
257284421
267274323
277264324
287254325
297244326
307244327

Wind in September

Winds average 8 km/h in September, the windiest month of the year.

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

0246810151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 36 min at the start of September to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over September. Sunrise moves from 7:05 AM to 6:36 AM, and sunset from 6:39 PM to 6:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.67:056:39
211.67:046:39
311.67:036:40
411.67:026:40
511.77:016:40
611.77:006:40
711.76:596:41
811.76:586:41
911.76:576:41
1011.86:566:41
1111.86:556:42
1211.86:546:42
1311.86:536:42
1411.86:526:42
1511.96:516:43
1611.96:506:43
1711.96:496:43
1811.96:486:43
1911.96:476:44
2012.06:466:44
2112.06:456:44
2212.06:446:44
2312.06:436:45
2412.06:426:45
2512.16:416:45
2612.16:406:45
2712.16:396:46
2812.16:386:46
2912.26:376:46
3012.26:366:47

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.7 kWh/m².

For context, solar energy here swings from a low near 3.44 kWh/m² to a high of 5.95 kWh/m² in February across the year — September's 4.7 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.7Bright
194.7Bright
204.7Bright
214.7Bright
224.7Bright
234.7Bright
244.7Bright
254.7Bright
264.7Bright
274.7Bright
284.7Bright
294.7Bright
304.7Bright
Planning a trip in September

Hazard calendar for Tocantins

In seasonPeak

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

Tocantins's monsoon runs November–March, 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 Tocantins?

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

6.7
Sightseeing
5th-best month of the year
6.9
Beach & pool
5th-best month of the year

September is a reasonable time to visit Tocantins for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Tocantins in September

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

In September, Tocantins sees daytime highs around 27°C and nights near 17°C. Pack light clothes. Worth having: rain gear and sun protection. About 8 days see rain.

light clothesrain gearsun protection

UV index in Tocantins 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 Tocantins peaks around February 10 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeFeb 10UV 15Jun 20UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Very high
May7Very high
Jun6High
Jul7High
Aug9Very high
Sep9Very high
Oct12Extreme
Nov14Extreme
Dec14Extreme

Air quality in Tocantins 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 Tocantins is worst in September — around 15 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (March, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1715 µg/m³Mar 168 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb9Good
Mar8Good
Apr9Good
May10Good
Jun10Good
Jul10Good
Aug11Good
Sep15Moderate
Oct12Good
Nov9Good
Dec9Good
Location & terrain

Where is Tocantins?

Tocantins sits at 21.2°S, 43.0°W, 356 m above sea level, in Brazil. The nearest listed city is Ubá, 10 km away.

Topography around Tocantins

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

Within 3 km, the terrain around Tocantins has only modest variations in elevation — a maximum elevation change of 195 m around an average of 387 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 690 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,750 m.

The land around Tocantins is covered by grassland (57%) and trees (34%) within 3 km, grassland (61%) and trees (35%) within 16 km, and grassland (62%) and trees (36%) within 80 km.

3 km
195 m
16 km
690 m
80 km
1,750 m
treesgrasslandcroplandartificial surfaces
September weather nearby: Ubá 10 km · Rio Pomba 20 km · Visconde do Rio Branco 26 km · São João Nepomuceno 41 km · Cataguases 41 km · Viçosa 49 km · Ervália 53 km · Leopoldina 56 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 Tocantins (-21.175°, -43.0178°, elevation 356 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).