Piracuruca weather in September

In September, Piracuruca sees average daytime highs of 37°C and overnight lows near 25°C, with 1 mm of rain across 0.2 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 37°C through the month. The sky is clear or mostly clear about 81% of the time in September, and the air most often feels humid.

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 Piracuruca's 1st-clearest and 2nd-windiest month. For the whole year in context, see Piracuruca's year-round climate.

Daytime high
37°
3rd warmest
Overnight low
25°
9th coldest
Rainfall
1 mm
0.2 wet days
Daylight
12 hours
5:42 AM – 5:41 PM
Cloud cover
28%
1st clearest
Wind
11 km/h
2nd windiest
Solar energy
6.9 kWh/m²
Travel score
2.1
out of 10

Piracuruca 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 37°C through the month.

A typical September day in Piracuruca reaches about 37°C in the afternoon and slips back to 25°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 36°C and 38°C. Set against its neighbours, September runs about 1°C warmer than August and on par with October.

20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13625
23625
33625
43625
53625
63625
73625
83625
93725
103725
113725
123725
133725
143725
153725
163725
173725
183725
193725
203725
213725
223725
233725
243725
253725
263725
273725
283725
293725
303725

How September really feels in Piracuruca

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.

Piracuruca 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
Jan34° / 25°15816.612.22.4
Feb33° / 24°20818.612.12.6
Mar32° / 24°29523.7122.6
Apr32° / 24°28722.911.92.8
May33° / 24°12912.911.83.4
Jun33° / 24°204.411.83.8
Jul34° / 24°71.611.83.7
Aug36° / 24°20.311.93.0
Sep37° / 25°10.2122.1
Oct37° / 26°90.712.11.7
Nov37° / 26°91.912.21.6
Dec36° / 26°445.312.21.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 81% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 13% of September, with mostly cloudy or overcast conditions the remaining 6%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1937
2937
3937
4937
5937
6937
7946
8946
9946
10946
11946
12946
13946
14946
15946
16946
17946
18946
19946
20955
21955
22955
23955
24946
25946
26946
27946
28946
29946
30937

Chance of precipitation in September

Any precipitation

Piracuruca gets around 1 mm of rain over 0.2 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 1% and peaks near 1% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
11
21
30
40
50
60
70
80
90
100
110
120
130
140
151
161
171
181
191
201
211
221
231
241
251
261
271
281
291
301

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the humid band about 56% of days. Sticky, muggy-or-worse air turns up on roughly 36% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1852400
2853390
3853390
4953380
5954370
6955360
7956350
8956350
9957340
10957340
11957340
12957340
13858340
14857350
15857350
16758350
17757360
18757360
19757360
20756370
21657370
22657370
23657370
24657370
25658360
26658360
27657361
28657361
29657361
30657361

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 11 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
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm

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 5:49 AM to 5:35 AM, and sunset from 5:44 PM to 5:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:495:44
211.95:485:44
311.95:485:44
411.95:475:44
511.95:475:43
611.95:475:43
711.95:465:43
811.95:465:43
912.05:455:42
1012.05:455:42
1112.05:445:42
1212.05:445:42
1312.05:435:41
1412.05:435:41
1512.05:425:41
1612.05:425:41
1712.05:415:40
1812.05:415:40
1912.05:405:40
2012.05:405:39
2112.05:395:39
2212.05:395:39
2312.05:385:39
2412.05:385:38
2512.05:385:38
2612.05:375:38
2712.05:375:38
2812.05:365:38
2912.05:365:37
3012.05:355:37

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.9 kWh/m².

For context, solar energy here swings from a low near 4.97 kWh/m² to a high of 7.04 kWh/m² in October across the year — September's 6.9 kWh/m² sits near the top of that range.

02468151015202530
Solar energy (kWh/m²)Level
16.7Intense
26.7Intense
36.7Intense
46.7Intense
56.7Intense
66.8Intense
76.8Intense
86.8Intense
96.8Intense
106.8Intense
116.8Intense
126.9Intense
136.9Intense
146.9Intense
156.9Intense
166.9Intense
176.9Intense
186.9Intense
197.0Intense
207.0Intense
217.0Intense
227.0Intense
237.0Intense
247.0Intense
257.0Intense
267.0Intense
277.0Intense
287.0Intense
297.0Intense
307.0Intense
Planning a trip in September

Hazard calendar for Piracuruca

In seasonPeak

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

Piracuruca's monsoon runs January–April, 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 Piracuruca?

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

2.1
Sightseeing
9th-best month of the year
5.7
Beach & pool
5th-best month of the year

September is a weaker month for outdoor sightseeing in Piracuruca.

What to pack for Piracuruca in September

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

In September, Piracuruca sees daytime highs around 37°C and nights near 25°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Piracuruca 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 Piracuruca peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 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 15Jun 23UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Extreme
Jul10Extreme
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec11Extreme

Air quality in Piracuruca 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 Piracuruca is worst in November — around 23 µg/m³ PM2.5 (moderate), about 4.1× the cleanest month (August, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateNov 1822 µg/m³Aug 126 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb14Moderate
Mar13Moderate
Apr12Good
May9Good
Jun7Good
Jul6Good
Aug6Good
Sep7Good
Oct17Moderate
Nov23Moderate
Dec19Moderate
Location & terrain

Where is Piracuruca?

Piracuruca sits at 3.9°S, 41.7°W, 75 m above sea level, in Brazil. The nearest listed city is Piripiri, 39 km away.

Topography around Piracuruca

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

Within 3 km, the terrain around Piracuruca has only modest variations in elevation — a maximum elevation change of 57 m around an average of 72 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 240 m; within 80 km, large variations in elevation — a maximum elevation change of 866 m.

The land around Piracuruca is covered by shrubs (36%) and grassland (35%) within 3 km, shrubs (42%), trees (29%) and grassland (25%) within 16 km, and trees (49%) and shrubs (35%) within 80 km.

3 km
57 m
16 km
240 m
80 km
866 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Piripiri 39 km · Batalha 42 km · Cocal 53 km · Esperantina 58 km · Pedro II 62 km · Barras 74 km · Viçosa do Ceará 80 km · Tianguá 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 Piracuruca (-3.9281°, -41.7092°, elevation 75 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).