Santa Quitéria do Maranhão weather in September

In September, Santa Quitéria do Maranhão sees average daytime highs of 36°C and overnight lows near 24°C, with 2 mm of rain across 0.5 wet days and about 12 hours of daylight. It is the 3rd-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 36°C through the month. The sky is clear or mostly clear about 76% 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 hours by month's end. Set against the rest of the year, September is Santa Quitéria do Maranhão's 1st-clearest and 4th-windiest month. For the whole year in context, see Santa Quitéria do Maranhão's year-round climate.

Daytime high
36°
3rd warmest
Overnight low
24°
7th coldest
Rainfall
2 mm
0.5 wet days
Daylight
12 hours
5:45 AM – 5:44 PM
Cloud cover
32%
1st clearest
Wind
13 km/h
4th windiest
Solar energy
6.59 kWh/m²
Travel score
2.4
out of 10

Santa Quitéria do Maranhão 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 36°C through the month.

A typical September day in Santa Quitéria do Maranhão reaches about 36°C in the afternoon and slips back to 24°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 35°C and 38°C. Set against its neighbours, September runs about 2°C warmer than August and on par with October.

20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13624
23624
33624
43624
53624
63624
73624
83624
93624
103624
113624
123624
133624
143624
153624
163624
173624
183624
193624
203624
213724
223724
233724
243724
253724
263724
273724
283724
293724
303724

How September really feels in Santa Quitéria do Maranhão

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
15 feel dangerously hot (≥ 39°C)
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.

Santa Quitéria do Maranhão weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 24°16818.612.22.7
Feb32° / 24°22321.512.12.7
Mar31° / 24°27926.5122.6
Apr31° / 24°29624.811.92.8
May32° / 24°16717.611.83.5
Jun32° / 24°417.711.84.3
Jul33° / 23°183.211.84.2
Aug35° / 23°30.611.93.4
Sep36° / 24°20.5122.4
Oct37° / 25°71.112.11.9
Nov37° / 25°152.512.22.0
Dec36° / 25°57712.22.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 76% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 7%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1955
2955
3955
4955
5955
6946
7946
8946
9946
10946
11946
12946
13946
14946
15937
16937
17937
18928
19928
20928
21928
22928
23928
24928
25928
26928
27928
28919
29919
30919

Chance of precipitation in September

Any precipitation

Santa Quitéria do Maranhão gets around 2 mm of rain over 0.5 wet days in September, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 2% and peaks near 3% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
11
21
31
41
51
61
71
81
91
101
111
121
131
142
152
162
172
182
192
202
212
222
232
242
252
263
273
283
293
303

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 83% of days. Sticky, muggy-or-worse air turns up on roughly 93% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)
167915
268014
368113
468113
578112
678211
778211
878310
978310
108839
117849
127849
137849
147858
157858
167858
177858
186859
196859
206859
216859
2268410
2368410
2468410
2568410
2668410
2768410
2858510
2958510
3058510

Wind in September

Winds average 13 km/h in September.

Across September, daily wind ranges from about 12 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze

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 5:52 AM to 5:39 AM, and sunset from 5:48 PM to 5:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:525:48
211.95:525:48
311.95:515:47
411.95:515:47
511.95:505:47
611.95:505:47
712.05:495:46
812.05:495:46
912.05:485:46
1012.05:485:46
1112.05:475:45
1212.05:475:45
1312.05:475:45
1412.05:465:45
1512.05:465:44
1612.05:455:44
1712.05:455:44
1812.05:445:43
1912.05:445:43
2012.05:435:43
2112.05:435:43
2212.05:425:42
2312.05:425:42
2412.05:415:42
2512.05:415:42
2612.05:415:41
2712.05:405:41
2812.05:405:41
2912.05:395:41
3012.05:395:40

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.59 kWh/m².

For context, solar energy here swings from a low near 4.71 kWh/m² to a high of 6.72 kWh/m² in October across the year — September's 6.59 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.4Intense
46.4Intense
56.5Intense
66.5Intense
76.5Intense
86.5Intense
96.5Intense
106.5Intense
116.5Intense
126.5Intense
136.6Intense
146.6Intense
156.6Intense
166.6Intense
176.6Intense
186.6Intense
196.6Intense
206.6Intense
216.7Intense
226.7Intense
236.7Intense
246.7Intense
256.7Intense
266.7Intense
276.7Intense
286.7Intense
296.7Intense
306.7Intense
Planning a trip in September

Hazard calendar for Santa Quitéria do Maranhão

In seasonPeak

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

Santa Quitéria do Maranhão's monsoon runs January–May, 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 Santa Quitéria do Maranhão?

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

2.4
Sightseeing
9th-best month of the year
6.0
Beach & pool
4th-best month of the year

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

What to pack for Santa Quitéria do Maranhão in September

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

In September, Santa Quitéria do Maranhão sees daytime highs around 36°C and nights near 24°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Santa Quitéria do Maranhão 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 Santa Quitéria do Maranhão peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 14 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 16UV 15Jul 14UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Extreme
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Santa Quitéria do Maranhão 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 Santa Quitéria do Maranhão is worst in November — around 21 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (June, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateNov 1920 µg/m³Jun 119 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb15Moderate
Mar14Moderate
Apr12Moderate
May9Good
Jun9Good
Jul12Moderate
Aug10Good
Sep10Good
Oct15Moderate
Nov21Moderate
Dec19Moderate
Location & terrain

Where is Santa Quitéria do Maranhão?

Santa Quitéria do Maranhão sits at 3.5°S, 42.6°W, 21 m above sea level, in Brazil. The nearest listed city is Luzilândia, 22 km away.

Topography around Santa Quitéria do Maranhão

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Santa Quitéria do Maranhão.

Within 3 km, the terrain around Santa Quitéria do Maranhão has only modest variations in elevation — a maximum elevation change of 67 m around an average of 36 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 104 m; within 80 km, only modest variations in elevation — a maximum elevation change of 180 m.

The land around Santa Quitéria do Maranhão is covered by grassland (51%) and trees (33%) within 3 km, trees (64%) and grassland (23%) within 16 km, and trees (64%) within 80 km.

3 km
67 m
16 km
104 m
80 km
180 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Luzilândia 22 km · São Bernardo 22 km · Brejo 30 km · Esperantina 58 km · Mata Roma 63 km · Buriti 64 km · Batalha 80 km · Miguel Alves 83 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 Santa Quitéria do Maranhão (-3.4959°, -42.562°, elevation 21 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).