Peruíbe weather in September

In September, Peruíbe sees average daytime highs of 23°C and overnight lows near 17°C, with 139 mm of rain across 14.4 wet days and about 11.8 hours of daylight. It is the 9th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 19% of the time in September, and the air most often feels humid.

Daylight stretches from about 11 h 30 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is Peruíbe's 7th-clearest and 3rd-windiest month. For the whole year in context, see Peruíbe's year-round climate.

Daytime high
23°
9th warmest
Overnight low
17°
4th coldest
Rainfall
139 mm
14.4 wet days
Daylight
11 h 54 min
7:07 AM – 6:58 PM
Cloud cover
72%
7th clearest
Wind
8 km/h
3rd windiest
Solar energy
4.16 kWh/m²
Travel score
5.9
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 23°C through the month.

A typical September day in Peruíbe reaches about 23°C in the afternoon and slips back to 17°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 27°C. Set against its neighbours, September runs on par with August and about 1°C cooler than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12316
22316
32317
42317
52317
62317
72317
82317
92317
102317
112317
122317
132317
142317
152317
162317
172317
182317
192317
202317
212317
222317
232317
242317
252317
262318
272318
282318
292318
302318

Peruíbe weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 23°29925.213.33.8
Feb28° / 23°27322.112.83.8
Mar28° / 22°24923.812.24.3
Apr26° / 20°14015.211.45.7
May24° / 18°11812.710.86.5
Jun23° / 16°889.610.56.8
Jul22° / 15°929.910.66.8
Aug22° / 16°799.811.26.7
Sep23° / 17°13914.411.85.9
Oct24° / 19°15317.412.65.4
Nov25° / 20°17618.813.25.1
Dec27° / 21°21521.413.54.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 11% of September, with mostly cloudy or overcast conditions the remaining 70%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14654
24456
34357
44258
54258
63961
73862
83664
93565
103367
113268
123169
133070
142971
152971
162872
172773
182773
192575
202575
212476
222377
232278
242278
252179
262179
272179
281981
291882
301882

Chance of precipitation in September

Any precipitation

Peruíbe gets around 139 mm of rain over 14.4 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 47% and peaks near 58% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
138
239
339
440
541
641
742
842
943
1043
1143
1243
1344
1444
1545
1645
1746
1848
1949
2050
2151
2252
2353
2454
2555
2655
2756
2857
2957
3058

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 47% of days. Sticky, muggy-or-worse air turns up on roughly 32% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
171854210
261855210
361854220
461852231
551852241
651851251
751950251
841950261
941950261
1041851261
1141850272
1231849272
1331849282
1431849292
1531748292
1631748302
1731747302
1841746312
1941746312
2041645322
2141645323
2241644333
2341644343
2441543343
2541542353
2641542363
2741541373
2841440384
2941440394
3041439394

Wind in September

Winds average 8 km/h in September.

Across September, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 30 min at the start of September to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over September. Sunrise moves from 7:23 AM to 6:51 AM, and sunset from 6:53 PM to 7:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.57:236:53
211.57:226:53
311.57:216:54
411.67:206:54
511.67:186:54
611.67:176:55
711.67:166:55
811.77:156:55
911.77:146:56
1011.77:136:56
1111.77:126:56
1211.87:116:57
1311.87:106:57
1411.87:096:57
1511.87:086:58
1611.97:076:58
1711.97:056:58
1811.97:046:59
1911.97:036:59
2012.07:027:00
2112.07:017:00
2212.07:007:00
2312.06:597:01
2412.16:587:01
2512.16:577:01
2612.16:567:02
2712.16:547:02
2812.26:537:03
2912.26:527:03
3012.26:517:03

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.16 kWh/m².

For context, solar energy here swings from a low near 2.97 kWh/m² to a high of 5.69 kWh/m² in December across the year — September's 4.16 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.1Bright
24.1Bright
34.1Bright
44.2Bright
54.2Bright
64.2Bright
74.2Bright
84.2Bright
94.2Bright
104.2Bright
114.2Bright
124.2Bright
134.2Bright
144.2Bright
154.2Bright
164.2Bright
174.2Bright
184.2Bright
194.2Bright
204.2Bright
214.2Bright
224.2Bright
234.2Bright
244.2Bright
254.2Bright
264.2Bright
274.3Bright
284.3Bright
294.3Bright
304.3Bright
Planning a trip in September

Hazard calendar for Peruíbe

In seasonPeak

In September, Peruíbe sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Peruíbe's rainy season runs September–April, 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 Peruíbe?

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

5.9
Sightseeing
5th-best month of the year
4.6
Beach & pool
10th-best month of the year

September is a reasonable time to visit Peruíbe for sightseeing.

What to pack for Peruíbe in September

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

In September, Peruíbe sees daytime highs around 23°C and nights near 17°C. Pack rain gear. Worth having: light clothes. About 14 days see rain.

rain gearlight clothes

Sea temperature near Peruíbe in September

The nearest coast averages about 21°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 14 km away) is warmest in February at about 27°C and coldest in August near 20°C.

It's comfortable for a long swim from Aug 19 to Aug 9 — about 11.7 months when the water holds above 20°C.

20°25°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swimcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr26Warm
May24Refreshing
Jun22Refreshing
Jul20Refreshing
Aug20Cool
Sep21Refreshing
Oct22Refreshing
Nov23Refreshing
Dec25Warm

UV index in Peruíbe in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Peruíbe peaks around February 8 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 5 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeFeb 8UV 14Jul 11UV 5
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar11Extreme
Apr8Very high
May6High
Jun5High
Jul5High
Aug7High
Sep7High
Oct10Extreme
Nov12Extreme
Dec13Extreme

Air quality in Peruíbe 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 Peruíbe is worst in July — around 33 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (January, 17 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJul 2033 µg/m³Jan 1817 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb17Moderate
Mar18Moderate
Apr20Moderate
May24Moderate
Jun30Moderate
Jul33Moderate
Aug32Moderate
Sep29Moderate
Oct21Moderate
Nov17Moderate
Dec17Moderate
Location & terrain

Where is Peruíbe?

Peruíbe sits at 24.3°S, 47.0°W, 11 m above sea level, in Brazil. The nearest listed city is Itariri, 18 km away.

Topography around Peruíbe

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

Within 3 km, the terrain around Peruíbe has significant variations in elevation — a maximum elevation change of 597 m around an average of 22 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,030 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,374 m.

The land around Peruíbe is covered by artificial surfaces (33%), water (32%) and trees (22%) within 3 km, trees (53%) and water (40%) within 16 km, and trees (53%) and water (39%) within 80 km.

3 km
597 m
16 km
1,030 m
80 km
1,374 m
treesgrasslandartificial surfacesbare terrainwaterwetlandmangroves
September weather nearby: Itariri 18 km · Itanhaém 26 km · Juquitiba 44 km · Mongaguá 46 km · Miracatu 47 km · São Lourenço da Serra 52 km · Embu-Guaçu 57 km · Parelheiros 61 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 Peruíbe (-24.32°, -46.9983°, elevation 11 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).