Traipu weather in September

In September, Traipu sees average daytime highs of 29°C and overnight lows near 21°C, with 23 mm of rain across 9.3 wet days and about 11.9 hours of daylight. It is the 9th-warmest and 10th-wettest month of the year here.

Highs climb over the month, from about 28°C in the first days to 30°C by the end. The sky is clear or mostly clear about 29% of the time in September, and the air most often feels muggy.

Daylight stretches from about 11 h 48 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Traipu's 2nd-clearest and 4th-windiest month. For the whole year in context, see Traipu's year-round climate.

Daytime high
29°
9th warmest
Overnight low
21°
3rd coldest
Rainfall
23 mm
9.3 wet days
Daylight
11 h 54 min
5:24 AM – 5:21 PM
Cloud cover
50%
2nd clearest
Wind
12 km/h
4th windiest
Solar energy
5.19 kWh/m²
Travel score
5.5
out of 10

Traipu 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

Highs climb over the month, from about 28°C in the first days to 30°C by the end.

A typical September day in Traipu reaches about 29°C in the afternoon and slips back to 21°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 31°C. Set against its neighbours, September runs about 2°C warmer than August and about 2°C cooler than October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12820
22820
32821
42821
52921
62921
72921
82921
92921
102921
112921
122921
132921
142921
152921
162921
172921
182921
193021
203021
213021
223021
233021
243021
253021
263021
273021
283021
293021
303121

How September really feels in Traipu

Once humidity and wind are folded in, September averages 4 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
4
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.

Traipu weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 24°37812.53.6
Feb33° / 24°398.612.33.6
Mar33° / 24°4710.312.13.6
Apr32° / 23°5212.711.83.9
May30° / 22°6315.711.54.6
Jun28° / 21°5716.711.45.3
Jul27° / 20°5016.511.55.6
Aug28° / 20°3213.511.75.9
Sep29° / 21°239.311.95.5
Oct31° / 22°205.512.24.9
Nov33° / 23°234.412.54.1
Dec33° / 23°194.312.63.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 44% of September, with mostly cloudy or overcast conditions the remaining 28%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16634
26634
36634
46634
56634
66634
76634
86733
96733
106832
116931
126931
137129
147129
157228
167327
177426
187426
197525
207624
217624
227723
237822
247822
257921
267921
277822
287822
297822
307723

Chance of precipitation in September

Any precipitation

Traipu gets around 23 mm of rain over 9.3 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 30% and peaks near 36% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
136
236
336
436
536
636
736
836
936
1036
1136
1235
1335
1434
1533
1633
1732
1830
1929
2028
2127
2226
2324
2423
2522
2621
2720
2820
2919
3019

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 89% of days. Sticky, muggy-or-worse air turns up on roughly 95% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)
16904
26904
36904
46895
57885
67885
77885
87876
97876
107876
117867
126877
136877
146877
156877
165887
175887
185896
195896
204906
214906
224906
233916
243916
253916
263916
273907
283907
293907
302917

Wind in September

Winds average 12 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
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912light breeze
3012light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 48 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 18 minutes over September. Sunrise moves from 5:34 AM to 5:15 AM, and sunset from 5:22 PM to 5:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.85:345:22
211.85:335:22
311.85:325:22
411.85:325:22
511.85:315:22
611.95:305:22
711.95:305:21
811.95:295:21
911.95:295:21
1011.95:285:21
1111.95:275:21
1211.95:275:21
1311.95:265:21
1411.95:255:21
1511.95:255:21
1611.95:245:21
1712.05:235:21
1812.05:235:21
1912.05:225:20
2012.05:215:20
2112.05:215:20
2212.05:205:20
2312.05:195:20
2412.05:195:20
2512.05:185:20
2612.05:175:20
2712.05:175:20
2812.15:165:20
2912.15:165:20
3012.15:155:20

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.19 kWh/m².

For context, solar energy here swings from a low near 3.82 kWh/m² to a high of 6.26 kWh/m² in December across the year — September's 5.19 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.9Bright
64.9Bright
74.9Bright
84.9Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.1Bright
145.1Bright
155.1Bright
165.2Bright
175.2Bright
185.3Bright
195.3Bright
205.3Bright
215.4Bright
225.4Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
Planning a trip in September

Is September a good time to visit Traipu?

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

5.5
Sightseeing
3rd-best month of the year
7.1
Beach & pool
2nd-best month of the year

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

What to pack for Traipu in September

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

In September, Traipu sees daytime highs around 29°C and nights near 21°C. Pack light clothes. Worth having: rain gear and sun protection. About 9 days see rain.

light clothesrain gearsun protection

UV index in Traipu 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 Traipu peaks around February 19 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 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 highExtremeFeb 19UV 15Jul 11UV 9
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar14Extreme
Apr13Extreme
May10Extreme
Jun9Very high
Jul9Very high
Aug10Very high
Sep11Extreme
Oct12Extreme
Nov13Extreme
Dec12Extreme
Location & terrain

Where is Traipu?

Traipu sits at 10.0°S, 37.0°W, 30 m above sea level, in Brazil. The nearest listed city is Girau do Ponciano, 21 km away.

Topography around Traipu

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

Within 3 km, the terrain around Traipu has only modest variations in elevation — a maximum elevation change of 232 m around an average of 43 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 484 m; within 80 km, large variations in elevation — a maximum elevation change of 755 m.

The land around Traipu is covered by grassland (52%) within 3 km, grassland (65%) and shrubs (20%) within 16 km, and grassland (66%) within 80 km.

3 km
232 m
16 km
484 m
80 km
755 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Girau do Ponciano 21 km · Porto Real do Colégio 30 km · Porto da Folha 31 km · Propriá 32 km · Lagoa da Canoa 33 km · Aquidabã 35 km · Batalha 35 km · Feira Grande 37 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 Traipu (-9.9706°, -37.0033°, 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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).