Piripiri weather in September

In September, Piripiri sees average daytime highs of 36°C and overnight lows near 24°C, with 1 mm of rain across 0.5 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 36°C through the month. The sky is clear or mostly clear about 75% 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 Piripiri's 1st-clearest and 1st-windiest month. For the whole year in context, see Piripiri's year-round climate.

Daytime high
36°
3rd warmest
Overnight low
24°
9th coldest
Rainfall
1 mm
0.5 wet days
Daylight
12 hours
5:42 AM – 5:41 PM
Cloud cover
31%
1st clearest
Wind
12 km/h
1st windiest
Solar energy
6.92 kWh/m²
Travel score
2.6
out of 10

Piripiri 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

Day-to-day highs hold fairly steady near 36°C through the month.

A typical September day in Piripiri reaches about 36°C in the afternoon and slips back to 24°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 35°C and 37°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)
13624
23624
33624
43624
53624
63624
73624
83624
93624
103624
113624
123624
133624
143624
153624
163624
173624
183624
193624
203625
213625
223625
233625
243625
253725
263725
273725
283725
293725
303725

How September really feels in Piripiri

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.

Piripiri 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
Jan33° / 24°20818.212.22.7
Feb32° / 23°25619.512.12.9
Mar31° / 23°36224.7122.8
Apr31° / 23°31722.911.93.0
May32° / 23°13813.411.83.7
Jun33° / 23°234.811.84.2
Jul33° / 23°9211.84.1
Aug35° / 24°20.311.93.4
Sep36° / 24°10.5122.6
Oct37° / 25°140.912.12.1
Nov37° / 25°172.412.22.1
Dec36° / 25°596.512.22.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 75% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 7%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1928
2928
3928
4928
5928
6928
7928
8928
9928
10937
11937
12937
13937
14937
15946
16946
17946
18946
19946
20946
21946
22946
23946
24946
25937
26928
27928
28928
29928
30928

Chance of precipitation in September

Any precipitation

Piripiri gets around 1 mm of rain over 0.5 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 2% and peaks near 2% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
11
21
31
41
51
61
71
81
91
101
111
121
132
142
152
162
172
182
192
202
212
222
232
242
252
262
272
282
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 64% of days. Sticky, muggy-or-worse air turns up on roughly 18% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
10196120
20196219
30206119
40206218
50216217
60216217
70216217
80216316
90216316
100216316
110206416
120206416
130196516
140196516
150186517
160176617
171176517
181166518
191156618
201156618
211156618
221156618
231146619
241146619
251146619
261146619
271146619
281136620
290136720
300136720

Wind in September

Winds average 12 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 12 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
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm

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
211.95:495:44
311.95:485:44
411.95:485:44
511.95:475:43
611.95:475:43
711.95:475:43
811.95:465:43
911.95:465:42
1012.05:455:42
1112.05:455:42
1212.05:445:42
1312.05:445:41
1412.05:435:41
1512.05:435:41
1612.05:425:41
1712.05:425:40
1812.05:415:40
1912.05:415:40
2012.05:405:40
2112.05:405:39
2212.05:395:39
2312.05:395:39
2412.05:385:39
2512.05:385:39
2612.05:375:38
2712.05:375:38
2812.05:365:38
2912.05:365:38
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 6.92 kWh/m².

For context, solar energy here swings from a low near 5.02 kWh/m² to a high of 7.04 kWh/m² in October across the year — September's 6.92 kWh/m² sits near the top of that range.

02468151015202530
Solar energy (kWh/m²)Level
16.7Intense
26.7Intense
36.7Intense
46.7Intense
56.8Intense
66.8Intense
76.8Intense
86.8Intense
96.8Intense
106.8Intense
116.9Intense
126.9Intense
136.9Intense
146.9Intense
156.9Intense
166.9Intense
177.0Intense
187.0Intense
197.0Intense
207.0Intense
217.0Intense
227.0Intense
237.0Intense
247.0Intense
257.0Intense
267.0Intense
277.0Intense
287.0Intense
297.0Intense
307.1Intense
Planning a trip in September

Hazard calendar for Piripiri

In seasonPeak

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

Piripiri'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 Piripiri?

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

2.6
Sightseeing
9th-best month of the year
6.2
Beach & pool
4th-best month of the year

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

What to pack for Piripiri in September

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

In September, Piripiri sees daytime highs around 36°C and nights near 24°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Piripiri 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 Piripiri 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 Piripiri 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 Piripiri is worst in November — around 16 µg/m³ PM2.5 (moderate), about 3.6× the cleanest month (July, 4 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateNov 1816 µg/m³Jul 155 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb13Moderate
Mar12Moderate
Apr11Good
May8Good
Jun6Good
Jul4Good
Aug6Good
Sep7Good
Oct12Moderate
Nov16Moderate
Dec14Moderate
Location & terrain

Where is Piripiri?

Piripiri sits at 4.3°S, 41.8°W, 164 m above sea level, in Brazil. The nearest listed city is Pedro II, 39 km away.

Topography around Piripiri

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

Within 3 km, the terrain around Piripiri has only modest variations in elevation — a maximum elevation change of 82 m around an average of 162 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 282 m; within 80 km, large variations in elevation — a maximum elevation change of 836 m.

The land around Piripiri is covered by trees (31%), artificial surfaces (25%) and shrubs (23%) within 3 km, trees (68%) within 16 km, and shrubs (41%) and trees (40%) within 80 km.

3 km
82 m
16 km
282 m
80 km
836 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Pedro II 39 km · Piracuruca 39 km · Batalha 43 km · Barras 57 km · Esperantina 65 km · Campo Maior 75 km · Cocal 92 km · Carnaubal 93 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 Piripiri (-4.2733°, -41.7769°, elevation 164 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).