Palmeirândia weather in September

In September, Palmeirândia sees average daytime highs of 33°C and overnight lows near 24°C, with 15 mm of rain across 4 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 33°C through the month. The sky is clear or mostly clear about 63% of the time in September, and the air most often feels oppressive.

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

Daytime high
33°
3rd warmest
Overnight low
24°
9th coldest
Rainfall
15 mm
4 wet days
Daylight
12 hours
5:54 AM – 5:53 PM
Cloud cover
38%
1st clearest
Wind
12 km/h
2nd windiest
Solar energy
5.99 kWh/m²
Travel score
4.2
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 33°C through the month.

A typical September day in Palmeirândia reaches about 33°C in the afternoon and slips back to 24°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 32°C and 34°C. Set against its neighbours, September runs about 1°C warmer than August and on par with October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13224
23324
33324
43324
53324
63324
73324
83324
93324
103324
113324
123324
133324
143324
153324
163324
173324
183324
193324
203324
213324
223324
233324
243324
253324
263324
273324
283324
293324
303324

How September really feels in Palmeirândia

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.

Palmeirândia 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
Jan31° / 24°20224.412.12.8
Feb31° / 24°26225.712.12.6
Mar30° / 24°35829.5122.6
Apr30° / 24°36528.711.92.6
May31° / 24°23925.811.93.0
Jun31° / 23°1081911.93.7
Jul31° / 23°7114.511.94.4
Aug32° / 24°267.811.94.6
Sep33° / 24°154124.2
Oct33° / 25°214.312.13.9
Nov33° / 25°336.512.13.7
Dec33° / 25°7513.712.23.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 63% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 26% of September, with mostly cloudy or overcast conditions the remaining 11%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1919
2928
3928
4928
5928
6919
7919
8919
9919
10919
11919
129010
139010
148911
158911
168911
178812
188812
198812
208812
218812
228812
238812
248812
258812
268713
278713
288713
298713
308713

Chance of precipitation in September

Any precipitation

Palmeirândia gets around 15 mm of rain over 4 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 14% and peaks near 18% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
118
218
317
417
516
616
715
815
915
1014
1114
1214
1315
1415
1515
1615
1714
1814
1914
2014
2113
2213
2313
2412
2512
2612
2712
2812
2912
3012

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 96% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
11972
22962
32962
42971
53961
63961
73961
83961
93961
103961
114951
124951
134951
144951
154951
164951
174951
184951
194951
203961
213961
223961
233961
244951
254951
264951
274951
284951
294960
304960

Wind in September

Winds average 12 km/h in September.

Across September, daily wind ranges from about 12 km/h on the calmest days to 13 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
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze

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 6:01 AM to 5:48 AM, and sunset from 5:58 PM to 5:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:015:58
212.06:005:58
312.06:005:57
412.06:005:57
512.05:595:57
612.05:595:56
712.05:585:56
812.05:585:56
912.05:575:56
1012.05:575:55
1112.05:575:55
1212.05:565:55
1312.05:565:54
1412.05:555:54
1512.05:555:54
1612.05:545:53
1712.05:545:53
1812.05:535:53
1912.05:535:53
2012.05:535:52
2112.05:525:52
2212.05:525:52
2312.05:515:51
2412.05:515:51
2512.05:505:51
2612.05:505:51
2712.05:505:50
2812.05:495:50
2912.05:495:50
3012.05:485:50

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.99 kWh/m².

For context, solar energy here swings from a low near 4.14 kWh/m² to a high of 6.13 kWh/m² in October across the year — September's 5.99 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.9Bright
55.9Bright
65.9Bright
75.9Bright
85.9Bright
95.9Bright
105.9Bright
115.9Bright
126.0Bright
136.0Bright
146.0Bright
156.0Bright
166.0Intense
176.0Intense
186.0Intense
196.0Intense
206.0Intense
216.0Intense
226.0Intense
236.1Intense
246.1Intense
256.1Intense
266.1Intense
276.1Intense
286.1Intense
296.1Intense
306.1Intense
Planning a trip in September

Hazard calendar for Palmeirândia

In seasonPeak

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

Palmeirândia's monsoon runs January–May, 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 Palmeirândia?

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

4.2
Sightseeing
3rd-best month of the year
7.4
Beach & pool
1st-best month of the year

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

What to pack for Palmeirândia in September

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

In September, Palmeirândia sees daytime highs around 33°C and nights near 24°C. Pack light clothes. Worth having: sun protection. About 4 days see rain.

light clothessun protection

Sea temperature near Palmeirândia in September

The nearest coast averages about 28°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 58 km away) is warmest in May at about 29°C and coldest in October near 28°C.

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

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb28Tropical
Mar28Tropical
Apr29Tropical
May29Tropical
Jun29Tropical
Jul28Tropical
Aug28Tropical
Sep28Warm
Oct28Warm
Nov28Warm
Dec28Warm

UV index in Palmeirândia 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 Palmeirândia peaks around March 18 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 15 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 18UV 15Jul 15UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Extreme
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Palmeirândia 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 Palmeirândia is worst in November — around 18 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (June, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateNov 1918 µg/m³Jun 199 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb17Moderate
Mar16Moderate
Apr14Moderate
May10Good
Jun9Good
Jul9Good
Aug10Good
Sep9Good
Oct13Moderate
Nov18Moderate
Dec16Moderate
Location & terrain

Where is Palmeirândia?

Palmeirândia sits at 2.6°S, 44.9°W, 12 m above sea level, in Brazil. The nearest listed city is São Bento, 10 km away.

Topography around Palmeirândia

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

Within 3 km, the terrain around Palmeirândia has only modest variations in elevation — a maximum elevation change of 51 m around an average of 16 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 101 m; within 80 km, only modest variations in elevation — a maximum elevation change of 171 m.

The land around Palmeirândia is covered by trees (63%) and grassland (24%) within 3 km, trees (59%) within 16 km, and trees (46%) and grassland (23%) within 80 km.

3 km
51 m
16 km
101 m
80 km
171 m
treesgrasslandartificial surfaceswaterwetlandmangroves
September weather nearby: São Bento 10 km · Pinheiro 25 km · Bequimão 25 km · São Vicente Ferrer 28 km · São João Batista 36 km · Presidente Sarney 52 km · Matinha 53 km · Alcântara 60 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 Palmeirândia (-2.6453°, -44.895°, elevation 12 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).