Tucuruí weather in September

In September, Tucuruí sees average daytime highs of 33°C and overnight lows near 25°C, with 27 mm of rain across 5.4 wet days and about 12 hours of daylight. It is the 1st-warmest and 11th-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 52% 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 Tucuruí's 3rd-clearest and 1st-windiest month. For the whole year in context, see Tucuruí's year-round climate.

Daytime high
33°
1st warmest
Overnight low
25°
11th coldest
Rainfall
27 mm
5.4 wet days
Daylight
12 hours
6:14 AM – 6:12 PM
Cloud cover
44%
3rd clearest
Wind
8 km/h
1st windiest
Solar energy
6.21 kWh/m²
Travel score
4.2
out of 10

Tucuruí 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 Tucuruí reaches about 33°C in the afternoon and slips back to 25°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 34°C. Set against its neighbours, September runs on par with August and on par with October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13325
23325
33325
43325
53325
63325
73325
83325
93325
103325
113325
123325
133325
143325
153325
163325
173325
183325
193325
203325
213325
223325
233325
243325
253325
263325
273325
283325
293325
303325

How September really feels in Tucuruí

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.

Tucuruí weather by month

How September compares with the rest of the year at a glance. September is the 1st-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 24°35028.812.22.7
Feb30° / 24°33226.412.12.7
Mar30° / 24°40929.7122.6
Apr30° / 24°30228.111.92.7
May31° / 24°17323.211.83.1
Jun31° / 24°5812.211.84.2
Jul32° / 24°317.211.84.6
Aug33° / 24°214.711.94.4
Sep33° / 25°275.4124.2
Oct32° / 25°659.812.13.8
Nov32° / 25°12116.312.23.3
Dec31° / 24°1982312.23.0

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 26% of September, with mostly cloudy or overcast conditions the remaining 22%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18317
28218
38119
48119
58119
68020
78020
88119
98119
108119
118119
128119
138119
148119
158119
168119
177921
187921
197822
207822
217723
227723
237525
247426
257426
267327
277327
287228
297129
307030

Chance of precipitation in September

Any precipitation

Tucuruí gets around 27 mm of rain over 5.4 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 18% and peaks near 24% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
117
217
317
417
517
617
717
817
917
1017
1117
1217
1316
1416
1516
1616
1716
1817
1917
2017
2118
2219
2319
2420
2521
2622
2722
2823
2924
3024

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 91% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
12926
22926
32926
42917
53907
63907
73907
83907
93907
103907
113907
123907
133907
143916
153916
163916
172926
182926
192926
202926
212926
222926
231936
241936
251936
261936
271927
281927
291918
301918

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 9 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
199calm
209calm
219calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

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 6:21 AM to 6:07 AM, and sunset from 6:16 PM to 6:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:216:16
211.96:206:16
311.96:206:16
411.96:196:16
511.96:196:15
611.96:186:15
711.96:186:15
812.06:176:15
912.06:176:14
1012.06:176:14
1112.06:166:14
1212.06:166:13
1312.06:156:13
1412.06:156:13
1512.06:146:13
1612.06:146:12
1712.06:136:12
1812.06:136:12
1912.06:126:12
2012.06:126:11
2112.06:116:11
2212.06:116:11
2312.06:106:11
2412.06:106:10
2512.06:096:10
2612.06:096:10
2712.06:086:10
2812.06:086:09
2912.06:086:09
3012.06:076:09

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.21 kWh/m².

For context, solar energy here swings from a low near 4.08 kWh/m² to a high of 6.26 kWh/m² in October across the year — September's 6.21 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.0Intense
26.0Intense
36.0Intense
46.0Intense
56.1Intense
66.1Intense
76.1Intense
86.1Intense
96.1Intense
106.1Intense
116.2Intense
126.2Intense
136.2Intense
146.2Intense
156.2Intense
166.2Intense
176.2Intense
186.3Intense
196.3Intense
206.3Intense
216.3Intense
226.3Intense
236.3Intense
246.3Intense
256.3Intense
266.3Intense
276.3Intense
286.3Intense
296.3Intense
306.3Intense
Planning a trip in September

Hazard calendar for Tucuruí

In seasonPeak

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

Tucuruí's monsoon runs December–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 Tucuruí?

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

4.2
Sightseeing
3rd-best month of the year
7.1
Beach & pool
3rd-best month of the year

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

What to pack for Tucuruí in September

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

In September, Tucuruí sees daytime highs around 33°C and nights near 25°C. Pack light clothes and sun protection. About 5 days see rain.

light clothessun protection

UV index in Tucuruí 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 Tucuruí peaks around March 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeExtremeVery highMar 15UV 15Nov 23UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Extreme
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct11Extreme
Nov10Very high
Dec10Very high

Air quality in Tucuruí 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 Tucuruí is worst in November — around 38 µg/m³ PM2.5 (poor), about 4.2× the cleanest month (June, 9 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModeratePoorModerateNov 1237 µg/m³Jun 179 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb16Moderate
Mar15Moderate
Apr13Moderate
May10Good
Jun9Good
Jul10Good
Aug14Moderate
Sep20Moderate
Oct34Moderate
Nov38Poor
Dec21Moderate
Location & terrain

Where is Tucuruí?

Tucuruí sits at 3.8°S, 49.7°W, 60 m above sea level, in Brazil. The nearest listed city is Breu Branco, 32 km away.

Topography around Tucuruí

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

Within 3 km, the terrain around Tucuruí has only modest variations in elevation — a maximum elevation change of 208 m around an average of 63 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 272 m; within 80 km, significant variations in elevation — a maximum elevation change of 312 m.

The land around Tucuruí is covered by grassland (32%), artificial surfaces (28%) and trees (25%) within 3 km, grassland (36%), trees (35%) and water (26%) within 16 km, and trees (54%) and grassland (36%) within 80 km.

3 km
208 m
16 km
272 m
80 km
312 m
treesgrasslandartificial surfaceswater
September weather nearby: Breu Branco 32 km · Novo Repartimento 64 km · Goianésia do Pará 65 km · Jacundá 98 km · Pacajá 107 km · Baião 108 km · Tailândia 122 km · Mocajuba 133 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 Tucuruí (-3.7658°, -49.6792°, elevation 60 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).