Capanema weather in September

In September, Capanema sees average daytime highs of 32°C and overnight lows near 23°C, with 31 mm of rain across 8.9 wet days and about 12 hours of daylight. It is the 3rd-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 39% 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 Capanema's 1st-clearest and 2nd-windiest month. For the whole year in context, see Capanema's year-round climate.

Daytime high
32°
3rd warmest
Overnight low
23°
8th coldest
Rainfall
31 mm
8.9 wet days
Daylight
12 hours
6:03 AM – 6:03 PM
Cloud cover
47%
1st clearest
Wind
11 km/h
2nd windiest
Solar energy
5.91 kWh/m²
Travel score
4.0
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical September day in Capanema reaches about 32°C in the afternoon and slips back to 23°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 33°C. Set against its neighbours, September runs about 1°C warmer than August and on par with October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13223
23223
33223
43223
53223
63223
73223
83223
93223
103223
113223
123223
133223
143223
153223
163223
173223
183223
193323
203323
213323
223323
233323
243323
253323
263323
273323
283323
293323
303323

How September really feels in Capanema

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.

Capanema weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 23°22125.712.12.8
Feb30° / 23°29326.5122.7
Mar30° / 23°38230.3122.6
Apr30° / 23°36429.3122.6
May31° / 23°25227.311.92.8
Jun31° / 23°12921.811.93.3
Jul31° / 22°9519.511.93.6
Aug32° / 23°4613.5124.0
Sep32° / 23°318.9124.0
Oct33° / 24°256123.9
Nov33° / 24°347.212.13.7
Dec32° / 24°8315.412.13.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 43% of September, with mostly cloudy or overcast conditions the remaining 18%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18317
28317
38317
48317
58317
68317
78317
88317
98317
108317
118317
128317
138317
148317
158317
168218
178218
188218
198218
208020
218020
228020
238020
248020
258020
268020
278020
288020
298020
307921

Chance of precipitation in September

Any precipitation

Capanema gets around 31 mm of rain over 8.9 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 30% and peaks near 35% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
135
234
333
433
533
632
732
832
932
1032
1132
1232
1331
1431
1531
1631
1731
1830
1930
2029
2129
2228
2327
2427
2526
2625
2724
2824
2923
3022

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 98% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
10991
20991
30991
41981
51981
61981
71981
81981
91981
101981
111981
121981
132971
142971
152971
162971
172971
182971
191981
201981
211981
221981
231990
241990
251990
261990
271990
281990
291990
301990

Wind in September

Winds average 11 km/h in September.

Across September, daily wind ranges from about 11 km/h on the calmest days to 12 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
1211calm
1311calm
1411calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm

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 6:09 AM to 5:58 AM, and sunset from 6:08 PM to 5:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:096:08
212.06:096:07
312.06:086:07
412.06:086:07
512.06:086:07
612.06:076:06
712.06:076:06
812.06:066:06
912.06:066:05
1012.06:066:05
1112.06:056:05
1212.06:056:04
1312.06:046:04
1412.06:046:04
1512.06:046:03
1612.06:036:03
1712.06:036:03
1812.06:026:02
1912.06:026:02
2012.06:026:02
2112.06:016:01
2212.06:016:01
2312.06:006:01
2412.06:006:00
2512.06:006:00
2612.05:596:00
2712.05:595:59
2812.05:585:59
2912.05:585:59
3012.05:585:58

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.91 kWh/m².

For context, solar energy here swings from a low near 3.83 kWh/m² to a high of 6.04 kWh/m² in October across the year — September's 5.91 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.8Bright
35.8Bright
45.8Bright
55.8Bright
65.8Bright
75.8Bright
85.8Bright
95.8Bright
105.8Bright
115.8Bright
125.8Bright
135.9Bright
145.9Bright
155.9Bright
165.9Bright
175.9Bright
185.9Bright
195.9Bright
206.0Bright
216.0Bright
226.0Bright
236.0Bright
246.0Intense
256.0Intense
266.0Intense
276.0Intense
286.0Intense
296.0Intense
306.0Intense
Planning a trip in September

Hazard calendar for Capanema

In seasonPeak

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

Capanema'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 Capanema?

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

4.0
Sightseeing
1st-best month of the year
6.6
Beach & pool
2nd-best month of the year

September is a reasonable time to visit Capanema for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Capanema in September

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

In September, Capanema sees daytime highs around 32°C and nights near 23°C. Pack light clothes. Worth having: rain gear and sun protection. About 9 days see rain.

light clothesrain gearsun protection

Sea temperature near Capanema in September

The nearest coast averages about 28°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 64 km away) is warmest in June at about 29°C and coldest in September near 28°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb28Tropical
Mar28Tropical
Apr28Tropical
May29Tropical
Jun29Tropical
Jul28Tropical
Aug28Tropical
Sep28Warm
Oct28Tropical
Nov28Tropical
Dec28Tropical

UV index in Capanema 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 Capanema peaks around March 16 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 16UV 15Jul 17UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May12Extreme
Jun11Extreme
Jul10Extreme
Aug11Extreme
Sep12Extreme
Oct12Extreme
Nov10Extreme
Dec11Extreme

Air quality in Capanema 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 Capanema is worst in November — around 21 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (July, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateNov 2020 µg/m³Jul 128 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb20Moderate
Mar20Moderate
Apr15Moderate
May10Good
Jun8Good
Jul8Good
Aug9Good
Sep11Good
Oct13Moderate
Nov21Moderate
Dec19Moderate
Location & terrain

Where is Capanema?

Capanema sits at 1.2°S, 47.2°W, 30 m above sea level, in Brazil. The nearest listed city is Tracuateua, 34 km away.

Topography around Capanema

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

Within 3 km, the terrain around Capanema has only modest variations in elevation — a maximum elevation change of 40 m around an average of 24 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 75 m; within 80 km, only modest variations in elevation — a maximum elevation change of 140 m.

The land around Capanema is covered by grassland (41%), trees (33%) and artificial surfaces (25%) within 3 km, trees (57%) and grassland (41%) within 16 km, and trees (50%) and grassland (29%) within 80 km.

3 km
40 m
16 km
75 m
80 km
140 m
treesgrasslandartificial surfacesbare terrainwaterwetlandmangroves
September weather nearby: Tracuateua 34 km · Ourém 40 km · São João de Pirabas 47 km · Santa Maria do Pará 47 km · Santa Luzia do Pará 48 km · Bragança 49 km · Igarapé-Açu 49 km · Maracanã 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 Capanema (-1.1958°, -47.1808°, elevation 30 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).