São Domingos do Capim weather in September

In September, São Domingos do Capim sees average daytime highs of 33°C and overnight lows near 23°C, with 22 mm of rain across 5.8 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 33°C through the month. The sky is clear or mostly clear about 37% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 hours at the start of September to 12 hours by month's end. Set against the rest of the year, September is São Domingos do Capim's 2nd-clearest and 2nd-windiest month. For the whole year in context, see São Domingos do Capim's year-round climate.

Daytime high
33°
3rd warmest
Overnight low
23°
8th coldest
Rainfall
22 mm
5.8 wet days
Daylight
12 hours
6:06 AM – 6:05 PM
Cloud cover
48%
2nd clearest
Wind
10 km/h
2nd windiest
Solar energy
6.01 kWh/m²
Travel score
3.9
out of 10

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 Domingos do Capim reaches about 33°C in the afternoon and slips back to 23°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 32°C and 34°C. Set against its neighbours, September runs on par with August and on par with October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13323
23323
33323
43323
53323
63323
73323
83323
93323
103323
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 Domingos do Capim

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 Domingos do Capim 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
Jan31° / 23°21725.512.12.7
Feb31° / 23°29726.212.12.5
Mar30° / 23°37930.2122.5
Apr30° / 23°38329.1122.5
May31° / 23°24026.311.92.8
Jun31° / 23°10419.211.93.4
Jul32° / 23°6613.811.94.0
Aug32° / 23°298.111.94.1
Sep33° / 23°225.8123.9
Oct33° / 24°266.6123.6
Nov33° / 24°437.412.13.5
Dec33° / 24°9915.612.13.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 41% of September, with mostly cloudy or overcast conditions the remaining 22%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18119
28119
38119
48119
58020
68020
78020
88020
98020
107921
117921
127921
137921
147921
157822
167822
177822
187822
197822
207723
217723
227624
237624
247624
257624
267723
277723
287624
297525
307426

Chance of precipitation in September

Any precipitation

São Domingos do Capim gets around 22 mm of rain over 5.8 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 20% and peaks near 23% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
123
223
322
422
522
621
721
821
920
1020
1120
1220
1320
1420
1520
1620
1720
1820
1919
2019
2119
2219
2319
2419
2518
2618
2718
2818
2919
3019

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 97% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
11981
21981
31981
41981
51981
62971
72971
82971
92971
102971
112971
122971
132971
142971
152971
162971
172971
182971
192971
202971
212971
222971
232971
242971
253961
263961
273961
283961
293961
303970

Wind in September

Winds average 10 km/h in September.

Across September, daily wind ranges from about 10 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 hours 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 0 minutes over September. Sunrise moves from 6:12 AM to 6:00 AM, and sunset from 6:10 PM to 6:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:126:10
212.06:116:10
312.06:116:09
412.06:116:09
512.06:106:09
612.06:106:08
712.06:096:08
812.06:096:08
912.06:096:07
1012.06:086:07
1112.06:086:07
1212.06:076:06
1312.06:076:06
1412.06:076:06
1512.06:066:05
1612.06:066:05
1712.06:056:05
1812.06:056:04
1912.06:046:04
2012.06:046:04
2112.06:046:04
2212.06:036:03
2312.06:036:03
2412.06:026:03
2512.06:026:02
2612.06:026:02
2712.06:016:02
2812.06:016:01
2912.06:006:01
3012.06:006:01

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.01 kWh/m².

For context, solar energy here swings from a low near 4.09 kWh/m² to a high of 6.11 kWh/m² in October across the year — September's 6.01 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
95.9Bright
106.0Bright
116.0Bright
126.0Bright
136.0Bright
146.0Bright
156.0Bright
166.0Intense
176.0Intense
186.0Intense
196.0Intense
206.0Intense
216.1Intense
226.1Intense
236.1Intense
246.1Intense
256.1Intense
266.1Intense
276.1Intense
286.1Intense
296.1Intense
306.1Intense
Planning a trip in September

Hazard calendar for São Domingos do Capim

In seasonPeak

None of São Domingos do Capim'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 Domingos do Capim'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 São Domingos do Capim?

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

3.9
Sightseeing
3rd-best month of the year
6.9
Beach & pool
1st-best month of the year

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

What to pack for São Domingos do Capim in September

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

In September, São Domingos do Capim sees daytime highs around 33°C and nights near 23°C. Pack light clothes and sun protection. About 6 days see rain.

light clothessun protection

UV index in São Domingos do Capim 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 Domingos do Capim peaks around March 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 17 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 17UV 15Jul 17UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May12Extreme
Jun11Extreme
Jul10Extreme
Aug11Extreme
Sep12Extreme
Oct12Extreme
Nov10Extreme
Dec11Extreme

Air quality in São Domingos do Capim 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 Domingos do Capim is worst in November — around 26 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (June, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateNov 1725 µg/m³Jun 1610 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb21Moderate
Mar21Moderate
Apr17Moderate
May11Good
Jun10Good
Jul11Good
Aug13Moderate
Sep14Moderate
Oct17Moderate
Nov26Moderate
Dec20Moderate
Location & terrain

Where is São Domingos do Capim?

São Domingos do Capim sits at 1.7°S, 47.8°W, 7 m above sea level, in Brazil. The nearest listed city is São Miguel do Guamá, 32 km away.

Topography around São Domingos do Capim

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

Within 3 km, the terrain around São Domingos do Capim has only modest variations in elevation — a maximum elevation change of 35 m around an average of 9 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 70 m; within 80 km, only modest variations in elevation — a maximum elevation change of 104 m.

The land around São Domingos do Capim is covered by trees (63%) and water (21%) within 3 km, trees (75%) within 16 km, and trees (69%) and grassland (29%) within 80 km.

3 km
35 m
16 km
70 m
80 km
104 m
treesgrasslandartificial surfaceswaterwetland
September weather nearby: São Miguel do Guamá 32 km · Bujaru 35 km · Irituia 39 km · Concórdia do Pará 41 km · Santa Maria do Pará 42 km · Castanhal 46 km · Mãe do Rio 48 km · Aurora do Pará 56 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 Domingos do Capim (-1.6742°, -47.7711°, elevation 7 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).