São Raimundo das Mangabeiras weather in September

In September, São Raimundo das Mangabeiras sees average daytime highs of 35°C and overnight lows near 23°C, with 7 mm of rain across 1.3 wet days and about 12 hours of daylight. It is the 1st-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 71% of the time in September, and the air most often feels comfortable.

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 Raimundo das Mangabeiras's 3rd-clearest and 4th-windiest month. For the whole year in context, see São Raimundo das Mangabeiras's year-round climate.

Daytime high
35°
1st warmest
Overnight low
23°
11th coldest
Rainfall
7 mm
1.3 wet days
Daylight
12 hours
5:57 AM – 5:55 PM
Cloud cover
31%
3rd clearest
Wind
10 km/h
4th windiest
Solar energy
6.55 kWh/m²
Travel score
3.1
out of 10

São Raimundo das Mangabeiras is 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 35°C through the month.

A typical September day in São Raimundo das Mangabeiras 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 about 1°C warmer than August and about 1°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
303523

How September really feels in São Raimundo das Mangabeiras

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 Raimundo das Mangabeiras weather by month

How September compares with the rest of the year at a glance. September is the 1st-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 22°21725.112.43.1
Feb30° / 22°19222.412.23.1
Mar30° / 22°19524.3123.1
Apr31° / 22°10615.911.83.8
May32° / 22°366.511.74.4
Jun32° / 22°30.511.64.8
Jul33° / 21°10.311.64.8
Aug34° / 22°10.211.83.9
Sep35° / 23°71.3123.1
Oct34° / 23°506.912.23.1
Nov32° / 23°12714.512.33.5
Dec31° / 22°15519.612.43.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 71% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 15%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1919
29010
39010
49010
59010
69010
78911
88911
98812
108812
118812
128812
138713
148713
158614
168614
178515
188515
198515
208317
218317
228317
238218
248218
258119
268119
277921
287822
297822
307723

Chance of precipitation in September

Any precipitation

São Raimundo das Mangabeiras gets around 7 mm of rain over 1.3 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 5% and peaks near 11% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
12
22
32
42
52
62
72
83
93
103
113
123
133
143
153
164
174
185
195
205
216
226
237
247
258
268
279
2810
2910
3011

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the comfortable band about 43% of days. Sticky, muggy-or-worse air turns up on roughly 22% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
17562791
275527101
375527101
475527101
575427111
675427111
775427111
875327121
975228121
1075228121
1175128131
1275128131
1374929141
1474829152
1574729162
1674529172
1764429182
1864330193
1964130203
2063930214
2153731234
2253531245
2353332255
2443233275
2543033286
2642833296
2732733307
2832534317
2932434328
3022334328

Wind in September

Winds average 10 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

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 6:06 AM to 5:50 AM, and sunset from 5:58 PM to 5:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:065:58
211.96:055:57
311.96:055:57
411.96:045:57
511.96:045:57
611.96:035:57
711.96:025:57
811.96:025:56
911.96:015:56
1011.96:015:56
1111.96:005:56
1211.96:005:56
1311.95:595:56
1411.95:595:55
1512.05:585:55
1612.05:575:55
1712.05:575:55
1812.05:565:55
1912.05:565:55
2012.05:555:54
2112.05:555:54
2212.05:545:54
2312.05:535:54
2412.05:535:54
2512.05:525:54
2612.05:525:53
2712.05:515:53
2812.05:515:53
2912.05:505:53
3012.15:505:53

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.55 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.71 kWh/m² to a high of 6.55 kWh/m² in September across the year — September's 6.55 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.5Intense
46.5Intense
56.5Intense
66.5Intense
76.5Intense
86.5Intense
96.6Intense
106.6Intense
116.6Intense
126.6Intense
136.6Intense
146.6Intense
156.6Intense
166.6Intense
176.6Intense
186.6Intense
196.6Intense
206.6Intense
216.6Intense
226.5Intense
236.5Intense
246.5Intense
256.5Intense
266.5Intense
276.5Intense
286.5Intense
296.5Intense
306.5Intense
Planning a trip in September

Hazard calendar for São Raimundo das Mangabeiras

In seasonPeak

None of São Raimundo das Mangabeiras'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 Raimundo das Mangabeiras'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 Raimundo das Mangabeiras?

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

3.1
Sightseeing
8th-best month of the year
6.8
Beach & pool
5th-best month of the year

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

What to pack for São Raimundo das Mangabeiras in September

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

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

light clothessun protection

UV index in São Raimundo das Mangabeiras 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 São Raimundo das Mangabeiras peaks around February 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 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 highExtremeFeb 21UV 15Jun 22UV 10
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug11Extreme
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec11Extreme

Air quality in São Raimundo das Mangabeiras 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 Raimundo das Mangabeiras is worst in September — around 24 µg/m³ PM2.5 (moderate), about 3.6× the cleanest month (June, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateSep 1624 µg/m³Jun 127 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb11Good
Mar11Good
Apr10Good
May8Good
Jun7Good
Jul10Good
Aug22Moderate
Sep24Moderate
Oct22Moderate
Nov16Moderate
Dec14Moderate
Location & terrain

Where is São Raimundo das Mangabeiras?

São Raimundo das Mangabeiras sits at 7.0°S, 45.5°W, 241 m above sea level, in Brazil. The nearest listed city is Balsas, 83 km away.

Topography around São Raimundo das Mangabeiras

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São Raimundo das Mangabeiras.

Within 3 km, the terrain around São Raimundo das Mangabeiras has only modest variations in elevation — a maximum elevation change of 78 m around an average of 231 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 331 m; within 80 km, significant variations in elevation — a maximum elevation change of 450 m.

The land around São Raimundo das Mangabeiras is covered by grassland (43%) and trees (37%) within 3 km, grassland (36%), shrubs (33%) and trees (31%) within 16 km, and shrubs (40%), trees (26%) and grassland (25%) within 80 km.

3 km
78 m
16 km
331 m
80 km
450 m
treesshrubsgrasslandcroplandartificial surfaces
September weather nearby: Balsas 83 km · Formosa da Serra Negra 101 km · Uruçuí 105 km · Riachão 131 km · Mirador 143 km · Grajaú 152 km · Pastos Bons 162 km · Barra do Corda 171 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 Raimundo das Mangabeiras (-7.0219°, -45.4811°, elevation 241 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).