Piaçabuçu weather in September

In September, Piaçabuçu sees average daytime highs of 28°C and overnight lows near 23°C, with 41 mm of rain across 15 wet days and about 11.9 hours of daylight. It is the 9th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 38% 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 Piaçabuçu's 1st-clearest and 4th-windiest month. For the whole year in context, see Piaçabuçu's year-round climate.

Daytime high
28°
9th warmest
Overnight low
23°
3rd coldest
Rainfall
41 mm
15 wet days
Daylight
11 h 54 min
5:22 AM – 5:18 PM
Cloud cover
46%
1st clearest
Wind
15 km/h
4th windiest
Solar energy
5.76 kWh/m²
Travel score
5.5
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical September day in Piaçabuçu reaches about 28°C in the afternoon and slips back to 23°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C cooler than October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12722
22822
32822
42822
52822
62822
72823
82823
92823
102823
112823
122823
132823
142823
152823
162823
172823
182823
192823
202823
212823
222823
232923
242923
252923
262923
272923
282923
292923
302923

How September really feels in Piaçabuçu

Once humidity and wind are folded in, September averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Piaçabuçu 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
Jan31° / 25°431212.54.5
Feb31° / 25°4412.912.34.2
Mar31° / 25°5814.812.14.1
Apr30° / 24°8418.511.84.0
May29° / 24°10621.211.54.3
Jun27° / 23°9621.211.44.9
Jul27° / 22°8321.611.55.0
Aug27° / 22°592011.75.2
Sep28° / 23°411511.95.5
Oct29° / 23°4311.212.25.4
Nov30° / 24°298.712.55.1
Dec31° / 25°257.712.64.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 42% of September, with mostly cloudy or overcast conditions the remaining 20%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17822
27822
37723
47723
57723
67723
77723
87723
97723
107723
117723
127723
137822
147921
158020
168020
178119
188218
198317
208317
218416
228416
238515
248515
258515
268416
278416
288416
298416
308317

Chance of precipitation in September

Any precipitation

Piaçabuçu gets around 41 mm of rain over 15 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 50% and peaks near 59% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
159
259
358
458
557
657
756
856
955
1055
1154
1254
1353
1453
1552
1651
1750
1849
1948
2047
2146
2245
2344
2443
2543
2642
2741
2841
2940
3040

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 63% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)
146729
246729
346729
446630
536730
636730
736730
836631
936631
1036631
1136532
1226632
1326533
1426533
1526434
1626434
1726335
1826335
1926236
2026236
2126137
2226137
2326038
2425939
2525939
2625840
2715940
2815841
2915841
3015742

Wind in September

Winds average 15 km/h in September.

Across September, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
114light breeze
214light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light 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 5:32 AM to 5:13 AM, and sunset from 5:19 PM to 5:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.85:325:19
211.85:315:19
311.85:305:19
411.85:305:19
511.85:295:19
611.85:285:19
711.95:285:19
811.95:275:19
911.95:265:19
1011.95:265:19
1111.95:255:19
1211.95:245:19
1311.95:245:19
1411.95:235:19
1511.95:225:18
1611.95:225:18
1712.05:215:18
1812.05:205:18
1912.05:205:18
2012.05:195:18
2112.05:185:18
2212.05:185:18
2312.05:175:18
2412.05:165:18
2512.05:165:18
2612.05:155:18
2712.15:155:18
2812.15:145:18
2912.15:135:18
3012.15:135:17

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.76 kWh/m².

For context, solar energy here swings from a low near 4.23 kWh/m² to a high of 6.66 kWh/m² in December across the year — September's 5.76 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.3Bright
25.4Bright
35.4Bright
45.4Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.6Bright
115.6Bright
125.6Bright
135.7Bright
145.7Bright
155.7Bright
165.8Bright
175.8Bright
185.8Bright
195.9Bright
205.9Bright
215.9Bright
226.0Bright
236.0Intense
246.0Intense
256.1Intense
266.1Intense
276.1Intense
286.1Intense
296.2Intense
306.2Intense
Planning a trip in September

Hazard calendar for Piaçabuçu

In seasonPeak

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

Piaçabuçu's rainy season runs March–August, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Piaçabuçu?

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

5.5
Sightseeing
1st-best month of the year
6.2
Beach & pool
5th-best month of the year

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

What to pack for Piaçabuçu in September

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

In September, Piaçabuçu sees daytime highs around 28°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 15 days see rain.

light clothesrain gearsun protection

Sea temperature near Piaçabuçu in September

The nearest coast averages about 26°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in April at about 29°C and coldest in August near 26°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Warm
Feb28Warm
Mar28Tropical
Apr29Tropical
May28Warm
Jun27Warm
Jul26Warm
Aug26Warm
Sep26Warm
Oct26Warm
Nov27Warm
Dec27Warm

UV index in Piaçabuçu 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 Piaçabuçu peaks around February 17 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 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 17UV 14Jun 23UV 9
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar14Extreme
Apr13Extreme
May10Extreme
Jun9Very high
Jul9Very high
Aug10Very high
Sep11Extreme
Oct12Extreme
Nov13Extreme
Dec12Extreme
Location & terrain

Where is Piaçabuçu?

Piaçabuçu sits at 10.4°S, 36.4°W, 6 m above sea level, in Brazil. The nearest listed city is Neópolis, 18 km away.

Topography around Piaçabuçu

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

Within 3 km, the terrain around Piaçabuçu has only modest variations in elevation — a maximum elevation change of 12 m around an average of 3 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 68 m; within 80 km, significant variations in elevation — a maximum elevation change of 493 m.

The land around Piaçabuçu is covered by grassland (30%), water (24%) and wetland (22%) within 3 km, grassland (33%) and water (26%) within 16 km, and grassland (37%) and water (35%) within 80 km.

3 km
12 m
16 km
68 m
80 km
493 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
September weather nearby: Neópolis 18 km · Penedo 21 km · Igreja Nova 40 km · Coruripe 42 km · Propriá 49 km · Porto Real do Colégio 51 km · Junqueiro 54 km · São Sebastião 54 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 Piaçabuçu (-10.4056°, -36.4344°, elevation 6 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).