Sorriso weather in September

In September, Sorriso sees average daytime highs of 34°C and overnight lows near 22°C, with 43 mm of rain across 7.7 wet days and about 11.9 hours of daylight. It is the 1st-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 34°C through the month. The sky is clear or mostly clear about 46% 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 Sorriso's 4th-clearest and 4th-windiest month. For the whole year in context, see Sorriso's year-round climate.

Daytime high
34°
1st warmest
Overnight low
22°
10th coldest
Rainfall
43 mm
7.7 wet days
Daylight
11 h 54 min
6:39 AM – 6:35 PM
Cloud cover
46%
4th clearest
Wind
7 km/h
4th windiest
Solar energy
5.85 kWh/m²
Travel score
3.3
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 34°C through the month.

A typical September day in Sorriso reaches about 34°C in the afternoon and slips back to 22°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 37°C. Set against its neighbours, September runs on par with August and about 2°C warmer than October.

15°20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13421
23421
33421
43421
53421
63422
73422
83422
93422
103422
113422
123422
133422
143422
153422
163422
173422
183422
193422
203422
213422
223422
233422
243422
253422
263422
273322
283322
293322
303322

How September really feels in Sorriso

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.

Sorriso weather by month

How September compares with the rest of the year at a glance. September is the 1st-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 22°24927.212.73.0
Feb30° / 22°22725.512.42.9
Mar30° / 22°19625.512.13.0
Apr31° / 22°9416.611.73.7
May31° / 21°275.111.44.9
Jun32° / 20°50.811.35.4
Jul32° / 19°10.311.35.4
Aug34° / 20°71.211.64.2
Sep34° / 22°437.711.93.3
Oct32° / 22°12619.112.32.9
Nov31° / 22°19123.712.63.0
Dec30° / 22°22926.312.73.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 46% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 23% of September, with mostly cloudy or overcast conditions the remaining 30%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18119
28119
38020
47921
57822
67822
77624
87624
97624
107525
117426
127426
137327
147327
157129
167129
177030
187030
196832
206832
216733
226535
236436
246238
256139
265941
275842
285644
295545
305347

Chance of precipitation in September

Any precipitation

Sorriso gets around 43 mm of rain over 7.7 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 26% and peaks near 47% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
111
211
312
413
514
614
715
816
917
1018
1119
1220
1321
1422
1523
1625
1726
1828
1929
2031
2133
2234
2336
2438
2540
2641
2743
2845
2946
3047

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 30% of days. Sticky, muggy-or-worse air turns up on roughly 59% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
11127292310
21126292411
31124292412
41123282513
51022282514
61022282615
71021282616
8920282717
9919282718
10818272719
11817272720
12716272822
13615272823
14614272825
15513272926
16412262928
17312253030
18311243131
19210233133
2029223235
2128213337
2217193339
2317183441
2416163443
2515153445
2614143447
2714123449
2803113452
2903103453
300293455

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 6 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
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

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 6:50 AM to 6:29 AM, and sunset from 6:35 PM to 6:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:506:35
211.86:496:35
311.86:496:35
411.86:486:35
511.86:476:35
611.86:466:35
711.86:466:35
811.86:456:35
911.86:446:35
1011.96:446:35
1111.96:436:35
1211.96:426:35
1311.96:416:35
1411.96:416:35
1511.96:406:35
1611.96:396:35
1711.96:396:35
1812.06:386:35
1912.06:376:35
2012.06:366:35
2112.06:366:35
2212.06:356:35
2312.06:346:35
2412.06:336:35
2512.06:336:35
2612.16:326:35
2712.16:316:35
2812.16:316:35
2912.16:306:35
3012.16:296:35

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.85 kWh/m².

For context, solar energy here swings from a low near 4.78 kWh/m² to a high of 5.87 kWh/m² in October across the year — September's 5.85 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.8Bright
45.8Bright
55.8Bright
65.8Bright
75.8Bright
85.8Bright
95.8Bright
105.8Bright
115.8Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.9Bright
185.9Bright
195.9Bright
205.9Bright
215.9Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
265.9Bright
275.9Bright
285.9Bright
295.9Bright
305.9Bright
Planning a trip in September

Hazard calendar for Sorriso

In seasonPeak

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

Sorriso's monsoon runs October–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 Sorriso?

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

3.3
Sightseeing
6th-best month of the year
6.4
Beach & pool
5th-best month of the year

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

What to pack for Sorriso in September

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

In September, Sorriso sees daytime highs around 34°C and nights near 22°C. Pack light clothes. Worth having: sun protection. About 8 days see rain.

light clothessun protection

UV index in Sorriso in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sorriso peaks around February 10 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 15 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 10UV 15Sep 15UV 8
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar14Extreme
Apr12Extreme
May10Very high
Jun8Very high
Jul9Very high
Aug10Very high
Sep7Very high
Oct11Extreme
Nov13Extreme
Dec13Extreme

Air quality in Sorriso 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 Sorriso is worst in September — around 48 µg/m³ PM2.5 (poor), about 5.2× the cleanest month (July, 9 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModeratePoorModerateSep 1744 µg/m³Jul 1210 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar12Good
Apr10Good
May11Good
Jun11Good
Jul9Good
Aug19Moderate
Sep48Poor
Oct23Moderate
Nov14Moderate
Dec11Good
Location & terrain

Where is Sorriso?

Sorriso sits at 12.5°S, 55.7°W, 363 m above sea level, in Brazil. The nearest listed city is Lucas do Rio Verde, 63 km away.

Nobres

Topography around Sorriso

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

Within 3 km, the terrain around Sorriso has only modest variations in elevation — a maximum elevation change of 67 m around an average of 364 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 92 m; within 80 km, only modest variations in elevation — a maximum elevation change of 171 m.

The land around Sorriso is covered by artificial surfaces (47%) and trees (27%) within 3 km, cropland (61%) and trees (28%) within 16 km, and cropland (63%) and trees (34%) within 80 km.

3 km
67 m
16 km
92 m
80 km
171 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Lucas do Rio Verde 63 km · Sinop 79 km · Tapurah 90 km · Nova Mutum 148 km · Colíder 194 km · Diamantino 222 km · Juara 244 km · Nobres 251 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 Sorriso (-12.5453°, -55.7114°, elevation 363 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).