Estreito weather in September

In September, Estreito sees average daytime highs of 35°C and overnight lows near 23°C, with 15 mm of rain across 2.3 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 35°C through the month. The sky is clear or mostly clear about 64% of the time in September, and the air most often feels muggy.

Daylight stretches from about 11 h 54 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Estreito's 3rd-clearest and 3rd-windiest month. For the whole year in context, see Estreito's year-round climate.

Daytime high
35°
2nd warmest
Overnight low
23°
10th coldest
Rainfall
15 mm
2.3 wet days
Daylight
12 hours
6:05 AM – 6:03 PM
Cloud cover
38%
3rd clearest
Wind
8 km/h
3rd windiest
Solar energy
6.2 kWh/m²
Travel score
3.0
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 35°C through the month.

A typical September day in Estreito reaches about 35°C in the afternoon and slips back to 23°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 37°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)
13523
23523
33523
43523
53523
63523
73523
83523
93523
103523
113523
123523
133523
143523
153523
163523
173523
183523
193523
203523
213523
223523
233523
243523
253523
263523
273523
283523
293523
303423

How September really feels in Estreito

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.

Estreito 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°20626.312.32.9
Feb30° / 23°20624.312.22.8
Mar31° / 23°22126.4122.9
Apr31° / 23°14420.211.93.3
May32° / 23°7310.711.73.9
Jun33° / 22°51.411.64.1
Jul34° / 22°30.511.73.8
Aug35° / 22°20.411.83.1
Sep35° / 23°152.3123.0
Oct34° / 24°529.112.13.3
Nov32° / 23°12116.112.33.4
Dec31° / 23°15120.612.43.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 64% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 19%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18911
28812
38812
48812
58812
68713
78614
88614
98515
108515
118515
128416
138317
148317
158119
168119
178020
187921
197822
207822
217624
227624
237525
247426
257426
267327
277228
287228
297228
307030

Chance of precipitation in September

Any precipitation

Estreito gets around 15 mm of rain over 2.3 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 8% and peaks near 15% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
13
23
34
44
54
64
74
85
95
105
115
125
136
146
156
167
177
188
198
209
219
2210
2311
2411
2512
2613
2713
2814
2914
3015

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 45% of days. Sticky, muggy-or-worse air turns up on roughly 63% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
121739358
211638369
311637369
4116373610
5116363610
6116353710
7116353711
8116343811
9116333911
10115323912
11115324012
12114314212
13113304313
14113294413
15112284514
16111274615
17110264715
1819244917
1918235018
2018225019
2117205121
2216195123
2315175324
2415165226
2514155228
2604145230
2703125332
2803125134
2902115136
3002105038

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 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
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
277calm
287calm
297calm
307calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 54 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 12 minutes over September. Sunrise moves from 6:13 AM to 5:58 AM, and sunset from 6:06 PM to 6:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:136:06
211.96:136:06
311.96:126:05
411.96:126:05
511.96:116:05
611.96:116:05
711.96:106:05
811.96:106:05
911.96:096:04
1011.96:086:04
1111.96:086:04
1211.96:076:04
1311.96:076:04
1412.06:066:03
1512.06:066:03
1612.06:056:03
1712.06:056:03
1812.06:046:03
1912.06:036:02
2012.06:036:02
2112.06:026:02
2212.06:026:02
2312.06:016:02
2412.06:016:02
2512.06:006:01
2612.06:006:01
2712.05:596:01
2812.05:596:01
2912.05:586:01
3012.15:586:01

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.2 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.49 kWh/m² to a high of 6.2 kWh/m² in September across the year — September's 6.2 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.2Intense
46.2Intense
56.2Intense
66.2Intense
76.2Intense
86.2Intense
96.2Intense
106.2Intense
116.2Intense
126.2Intense
136.2Intense
146.2Intense
156.2Intense
166.2Intense
176.2Intense
186.2Intense
196.2Intense
206.2Intense
216.2Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.1Intense
276.1Intense
286.1Intense
296.1Intense
306.1Intense
Planning a trip in September

Hazard calendar for Estreito

In seasonPeak

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

Estreito'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 Estreito?

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

3.0
Sightseeing
9th-best month of the year
6.6
Beach & pool
4th-best month of the year

September is a weaker month for outdoor sightseeing in Estreito. The water and warmth also suit a beach or pool day.

What to pack for Estreito in September

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

In September, Estreito sees daytime highs around 35°C and nights near 23°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Estreito 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 Estreito peaks around March 11 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 11UV 15Jun 23UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug11Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec10Extreme

Air quality in Estreito 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 Estreito is worst in October — around 27 µg/m³ PM2.5 (moderate), about 3.7× the cleanest month (July, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateOct 1327 µg/m³Jul 107 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb12Good
Mar11Good
Apr11Good
May9Good
Jun8Good
Jul7Good
Aug15Moderate
Sep25Moderate
Oct27Moderate
Nov22Moderate
Dec16Moderate
Location & terrain

Where is Estreito?

Estreito sits at 6.6°S, 47.4°W, 144 m above sea level, in Brazil. The nearest listed city is Porto Franco, 25 km away.

Topography around Estreito

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

Within 3 km, the terrain around Estreito has only modest variations in elevation — a maximum elevation change of 102 m around an average of 158 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 184 m; within 80 km, significant variations in elevation — a maximum elevation change of 550 m.

The land around Estreito is covered by grassland (33%) and trees (32%) within 3 km, trees (50%) and grassland (38%) within 16 km, and grassland (50%) and trees (43%) within 80 km.

3 km
102 m
16 km
184 m
80 km
550 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Porto Franco 25 km · Tocantinópolis 25 km · Carolina 87 km · Governador Edison Lobão 91 km · Araguaína 110 km · Sítio Novo 111 km · Imperatriz 115 km · João Lisboa 123 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 Estreito (-6.5557°, -47.4415°, elevation 144 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).