Pio XII weather in September

In September, Pio XII sees average daytime highs of 35°C and overnight lows near 24°C, with 10 mm of rain across 1.8 wet days and about 12 hours of daylight. It is the 2nd-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 35°C through the month. The sky is clear or mostly clear about 66% 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 Pio XII's 2nd-clearest and 2nd-windiest month. For the whole year in context, see Pio XII's year-round climate.

Daytime high
35°
2nd warmest
Overnight low
24°
9th coldest
Rainfall
10 mm
1.8 wet days
Daylight
12 hours
5:56 AM – 5:54 PM
Cloud cover
37%
2nd clearest
Wind
10 km/h
2nd windiest
Solar energy
6.12 kWh/m²
Travel score
3.3
out of 10

Pio XII 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 35°C through the month.

A typical September day in Pio XII reaches about 35°C in the afternoon and slips back to 24°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 33°C and 36°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)
13424
23424
33424
43424
53424
63524
73524
83524
93524
103524
113524
123524
133524
143524
153524
163524
173525
183525
193525
203525
213525
223525
233525
243525
253525
263525
273525
283525
293525
303525

How September really feels in Pio XII

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
22 feel dangerously hot (≥ 39°C)
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.

Pio XII weather by month

How September compares with the rest of the year at a glance. September is the 2nd-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 24°26025.312.22.6
Feb31° / 24°28625.612.12.5
Mar31° / 24°34829.7122.4
Apr31° / 24°31627.811.92.5
May31° / 24°16021.311.83.2
Jun31° / 24°5411.111.84.2
Jul32° / 23°296.211.84.5
Aug34° / 24°9211.94.0
Sep35° / 24°101.8123.3
Oct35° / 25°173.512.13.0
Nov34° / 25°457.512.22.9
Dec33° / 25°12015.212.22.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 66% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 23% of September, with mostly cloudy or overcast conditions the remaining 11%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1928
2928
3919
4919
5919
6919
7919
8919
9919
108911
118911
128911
138911
148911
158911
168911
178911
188812
198812
208812
218812
228812
238812
248812
258713
268713
278713
288713
298713
308614

Chance of precipitation in September

Any precipitation

Pio XII gets around 10 mm of rain over 1.8 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 6% and peaks near 8% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
15
25
35
45
55
65
75
85
95
105
115
126
136
146
156
166
176
186
197
207
217
227
238
248
258
268
278
288
298
308

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 85% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1113842
2114832
3114841
4015841
5015841
6016831
7016831
8017821
9017821
10017821
11017821
12116821
13116821
14115831
15115831
16114841
17114841
18113851
19112861
20112861
21111871
22011881
23010891
24010891
25010900
26010900
2709910
2809910
2909910
3009910

Wind in September

Winds average 10 km/h in September.

Across September, daily wind ranges from about 10 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
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
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 6:03 AM to 5:49 AM, and sunset from 5:58 PM to 5:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:035:58
211.96:025:58
311.96:025:58
411.96:015:57
511.96:015:57
611.96:005:57
711.96:005:57
812.05:595:56
912.05:595:56
1012.05:585:56
1112.05:585:56
1212.05:575:55
1312.05:575:55
1412.05:575:55
1512.05:565:55
1612.05:565:54
1712.05:555:54
1812.05:555:54
1912.05:545:54
2012.05:545:53
2112.05:535:53
2212.05:535:53
2312.05:525:52
2412.05:525:52
2512.05:515:52
2612.05:515:52
2712.05:505:52
2812.05:505:51
2912.05:495:51
3012.05:495:51

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.12 kWh/m².

For context, solar energy here swings from a low near 4.29 kWh/m² to a high of 6.2 kWh/m² in October across the year — September's 6.12 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.9Bright
26.0Bright
36.0Bright
46.0Bright
56.0Bright
66.0Intense
76.0Intense
86.0Intense
96.0Intense
106.1Intense
116.1Intense
126.1Intense
136.1Intense
146.1Intense
156.1Intense
166.1Intense
176.1Intense
186.2Intense
196.2Intense
206.2Intense
216.2Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.2Intense
276.2Intense
286.2Intense
296.2Intense
306.2Intense
Planning a trip in September

Hazard calendar for Pio XII

In seasonPeak

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

Pio XII'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 Pio XII?

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

3.3
Sightseeing
4th-best month of the year
6.9
Beach & pool
3rd-best month of the year

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

What to pack for Pio XII in September

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

In September, Pio XII sees daytime highs around 35°C and nights near 24°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Pio XII 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 Pio XII peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 19 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 15Jul 19UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar16Extreme
Apr14Extreme
May11Extreme
Jun10Extreme
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Pio XII 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 Pio XII is worst in November — around 22 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (July, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateNov 1621 µg/m³Jul 148 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb16Moderate
Mar15Moderate
Apr14Moderate
May10Good
Jun9Good
Jul8Good
Aug9Good
Sep11Good
Oct17Moderate
Nov22Moderate
Dec17Moderate
Location & terrain

Where is Pio XII?

Pio XII sits at 3.8°S, 45.2°W, 13 m above sea level, in Brazil. The nearest listed city is Santa Inês, 31 km away.

Topography around Pio XII

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

Within 3 km, the terrain around Pio XII has only modest variations in elevation — a maximum elevation change of 27 m around an average of 19 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 63 m; within 80 km, significant variations in elevation — a maximum elevation change of 253 m.

The land around Pio XII is covered by grassland (77%) and trees (22%) within 3 km, grassland (65%) and trees (32%) within 16 km, and grassland (61%) and trees (31%) within 80 km.

3 km
27 m
16 km
63 m
80 km
253 m
treesshrubsgrasslandwaterwetland
September weather nearby: Santa Inês 31 km · Pindaré-Mirim 33 km · Olho d’Água das Cunhãs 34 km · Monção 39 km · Vitória do Mearim 52 km · Vitorino Freire 52 km · Santa Luzia 58 km · Arari 59 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 Pio XII (-3.8325°, -45.1525°, elevation 13 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).