São Félix do Xingu weather in September

In September, São Félix do Xingu sees average daytime highs of 33°C and overnight lows near 23°C, with 41 mm of rain across 6.5 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 33°C through the month. The sky is clear or mostly clear about 46% 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 h 06 min by month's end. Set against the rest of the year, September is São Félix do Xingu's 4th-clearest and 3rd-windiest month. For the whole year in context, see São Félix do Xingu's year-round climate.

Daytime high
33°
2nd warmest
Overnight low
23°
11th coldest
Rainfall
41 mm
6.5 wet days
Daylight
12 hours
6:23 AM – 6:21 PM
Cloud cover
49%
4th clearest
Wind
6 km/h
3rd windiest
Solar energy
6 kWh/m²
Travel score
3.7
out of 10

São Félix do Xingu 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 São Félix do Xingu reaches about 33°C in the afternoon and slips back to 23°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 35°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)
13422
23422
33423
43423
53423
63423
73423
83423
93423
103423
113323
123323
133323
143323
153323
163323
173323
183323
193323
203323
213323
223323
233323
243323
253323
263323
273323
283323
293323
303323

How September really feels in São Félix do Xingu

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.

São Félix do Xingu 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
Jan29° / 22°31529.612.33.0
Feb29° / 22°29226.312.23.0
Mar29° / 22°31929.4122.9
Apr29° / 22°23426.611.93.1
May30° / 22°13519.411.73.9
Jun31° / 22°20511.65.0
Jul33° / 21°81.711.74.6
Aug34° / 22°91.811.83.9
Sep33° / 23°416.5123.7
Oct32° / 23°11416.412.13.5
Nov30° / 23°18823.312.33.2
Dec29° / 22°24626.812.43.1

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 19% of September, with mostly cloudy or overcast conditions the remaining 36%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17723
27525
37525
47426
57327
67228
77228
87030
96931
106931
116832
126733
136634
146535
156535
166436
176337
186238
196238
206139
216139
225941
235842
245842
255743
265743
275545
285446
295347
305347

Chance of precipitation in September

Any precipitation

São Félix do Xingu gets around 41 mm of rain over 6.5 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 21% 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 (%)
111
212
313
414
515
616
716
817
917
1018
1118
1218
1319
1419
1520
1620
1720
1821
1922
2023
2124
2225
2326
2428
2529
2630
2731
2833
2934
3035

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 52% of days. Sticky, muggy-or-worse air turns up on roughly 90% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
111949300
211849320
311748330
411748350
511647360
611546380
711546390
801545400
901444410
1011443430
1111342440
1211242450
1311241470
1411140480
1511040500
1611039500
171938520
181837540
191835560
201734580
211633600
221632610
231530640
241429660
250428671
260326701
270225721
280224731
290222751
300121771

Wind in September

Winds average 6 km/h in September.

Across September, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
265calm
275calm
285calm
295calm
305calm

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 6:32 AM to 6:16 AM, and sunset from 6:24 PM to 6:19 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:326:24
211.96:316:24
311.96:306:24
411.96:306:23
511.96:296:23
611.96:296:23
711.96:286:23
811.96:286:23
911.96:276:23
1011.96:276:22
1111.96:266:22
1211.96:266:22
1311.96:256:22
1412.06:256:22
1512.06:246:21
1612.06:236:21
1712.06:236:21
1812.06:226:21
1912.06:226:21
2012.06:216:20
2112.06:216:20
2212.06:206:20
2312.06:196:20
2412.06:196:20
2512.06:186:20
2612.06:186:19
2712.06:176:19
2812.06:176:19
2912.06:166:19
3012.16:166:19

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.31 kWh/m² to a high of 6 kWh/m² in September across the year — September's 6 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.9Bright
55.9Bright
65.9Bright
75.9Bright
85.9Bright
96.0Bright
106.0Bright
116.0Bright
126.0Bright
136.0Intense
146.0Intense
156.0Intense
166.0Intense
176.0Intense
186.0Intense
196.0Intense
206.0Intense
216.0Intense
226.0Intense
236.0Intense
246.0Intense
256.0Intense
266.0Intense
276.0Intense
286.0Intense
296.0Intense
306.0Intense
Planning a trip in September

Hazard calendar for São Félix do Xingu

In seasonPeak

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

São Félix do Xingu'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 São Félix do Xingu?

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

3.7
Sightseeing
5th-best month of the year
6.7
Beach & pool
4th-best month of the year

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

What to pack for São Félix do Xingu in September

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

In September, São Félix do Xingu sees daytime highs around 33°C and nights near 23°C. Pack light clothes and sun protection. About 7 days see rain.

light clothessun protection

UV index in São Félix do Xingu in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in São Félix do Xingu peaks around March 11 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 9 (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 20UV 9
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun9Very high
Jul10Very high
Aug11Extreme
Sep11Extreme
Oct10Extreme
Nov11Extreme
Dec10Extreme

Air quality in São Félix do Xingu 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 São Félix do Xingu is worst in September — around 73 µg/m³ PM2.5 (unhealthy), about 10.3× the cleanest month (June, 7 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecGoodUnhealthyModerateSep 1569 µg/m³Jun 177 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb11Good
Mar11Good
Apr12Good
May9Good
Jun7Good
Jul9Good
Aug43Poor
Sep73Unhealthy
Oct30Moderate
Nov22Moderate
Dec17Moderate
Location & terrain

Where is São Félix do Xingu?

São Félix do Xingu sits at 6.6°S, 52.0°W, 199 m above sea level, in Brazil. The nearest listed city is Tucumã, 93 km away.

Redenção

Topography around São Félix do Xingu

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São Félix do Xingu.

Within 3 km, the terrain around São Félix do Xingu has only modest variations in elevation — a maximum elevation change of 174 m around an average of 196 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 414 m; within 80 km, significant variations in elevation — a maximum elevation change of 555 m.

The land around São Félix do Xingu is covered by grassland (46%), water (22%) and trees (20%) within 3 km, grassland (53%) and trees (40%) within 16 km, and trees (57%) and grassland (41%) within 80 km.

3 km
174 m
16 km
414 m
80 km
555 m
treesgrasslandartificial surfaceswater
September weather nearby: Tucumã 93 km · Ourilândia do Norte 101 km · Água Azul do Norte 170 km · Rio Maria 227 km · Xinguara 232 km · Canaã dos Carajás 237 km · Parauapebas 240 km · Redenção 266 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 São Félix do Xingu (-6.6447°, -51.995°, elevation 199 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).