Senador Pompeu weather in September

In September, Senador Pompeu sees average daytime highs of 35°C and overnight lows near 24°C, with 2 mm of rain across 0.7 wet days and about 12 hours of daylight. It is the 4th-warmest and 12th-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 70% 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 Senador Pompeu's 1st-clearest and 3rd-windiest month. For the whole year in context, see Senador Pompeu's year-round climate.

Daytime high
35°
4th warmest
Overnight low
24°
8th coldest
Rainfall
2 mm
0.7 wet days
Daylight
12 hours
5:33 AM – 5:31 PM
Cloud cover
29%
1st clearest
Wind
15 km/h
3rd windiest
Solar energy
6.75 kWh/m²
Travel score
3.4
out of 10

Senador Pompeu 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 35°C through the month.

A typical September day in Senador Pompeu reaches about 35°C in the afternoon and slips back to 24°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 34°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)
13423
23423
33423
43423
53423
63523
73523
83523
93523
103524
113524
123524
133524
143524
153524
163524
173524
183524
193524
203524
213524
223524
233524
243524
253524
263524
273524
283524
293524
303524

How September really feels in Senador Pompeu

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.

Senador Pompeu weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan34° / 24°9914.312.32.8
Feb33° / 24°1031612.22.9
Mar32° / 23°14320.7123.0
Apr31° / 23°12420.211.93.2
May31° / 23°8213.411.74.0
Jun32° / 23°347.111.74.6
Jul32° / 22°183.911.74.6
Aug34° / 23°91.511.84.0
Sep35° / 24°20.7123.4
Oct35° / 24°80.812.12.9
Nov35° / 24°61.112.32.9
Dec35° / 24°244.612.32.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 70% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 19% of September, with mostly cloudy or overcast conditions the remaining 12%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18614
28614
38614
48614
58614
68515
78515
88515
98515
108614
118614
128614
138713
148713
158713
168911
178911
188911
199010
209010
219010
22919
23919
24919
25919
26919
27919
28919
299010
308911

Chance of precipitation in September

Any precipitation

Senador Pompeu gets around 2 mm of rain over 0.7 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 3% and peaks near 3% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
13
23
33
43
53
63
73
83
93
103
113
123
133
143
153
162
172
182
192
202
212
222
232
242
252
262
272
282
292
302

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 62% of days. Sticky, muggy-or-worse air turns up on roughly 28% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
11461241
21461241
31462240
41462240
51462240
61462240
71463230
81462240
91363240
101363240
111264240
121165240
131164250
141065250
15965260
16964270
17864280
18863290
19763300
20762310
21762310
22662320
23661330
24661330
25561340
26561340
27560350
28560350
29461350
30461350

Wind in September

Winds average 15 km/h in September.

Across September, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light 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 5:40 AM to 5:25 AM, and sunset from 5:34 PM to 5:28 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:405:34
211.95:405:34
311.95:395:34
411.95:395:33
511.95:385:33
611.95:385:33
711.95:375:33
811.95:375:33
911.95:365:32
1011.95:365:32
1111.95:355:32
1211.95:355:32
1312.05:345:32
1412.05:345:31
1512.05:335:31
1612.05:335:31
1712.05:325:31
1812.05:325:30
1912.05:315:30
2012.05:315:30
2112.05:305:30
2212.05:305:30
2312.05:295:29
2412.05:295:29
2512.05:285:29
2612.05:275:29
2712.05:275:29
2812.05:265:28
2912.05:265:28
3012.05:255:28

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.75 kWh/m².

For context, solar energy here swings from a low near 4.78 kWh/m² to a high of 6.96 kWh/m² in October across the year — September's 6.75 kWh/m² sits near the top of that range.

02468151015202530
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.5Intense
46.5Intense
56.5Intense
66.5Intense
76.5Intense
86.6Intense
96.6Intense
106.6Intense
116.6Intense
126.6Intense
136.7Intense
146.7Intense
156.7Intense
166.7Intense
176.8Intense
186.8Intense
196.8Intense
206.8Intense
216.9Intense
226.9Intense
236.9Intense
246.9Intense
257.0Intense
267.0Intense
277.0Intense
287.0Intense
297.0Intense
307.0Intense
Planning a trip in September

Hazard calendar for Senador Pompeu

In seasonPeak

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

Senador Pompeu's rainy season runs January–May, 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 Senador Pompeu?

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

3.4
Sightseeing
5th-best month of the year
7.1
Beach & pool
3rd-best month of the year

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

What to pack for Senador Pompeu in September

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

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

light clothessun protection

UV index in Senador Pompeu 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 Senador Pompeu peaks around March 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 13UV 15Jun 23UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec12Extreme

Air quality in Senador Pompeu 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 Senador Pompeu is worst in November — around 16 µg/m³ PM2.5 (moderate), about 4.0× the cleanest month (July, 4 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateNov 1416 µg/m³Jul 194 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar10Good
Apr10Good
May7Good
Jun5Good
Jul4Good
Aug5Good
Sep6Good
Oct14Moderate
Nov16Moderate
Dec13Moderate
Location & terrain

Where is Senador Pompeu?

Senador Pompeu sits at 5.6°S, 39.4°W, 181 m above sea level, in Brazil. The nearest listed city is Piquet Carneiro, 24 km away.

Topography around Senador Pompeu

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

Within 3 km, the terrain around Senador Pompeu has only modest variations in elevation — a maximum elevation change of 126 m around an average of 194 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 284 m; within 80 km, large variations in elevation — a maximum elevation change of 804 m.

The land around Senador Pompeu is covered by shrubs (62%) and grassland (26%) within 3 km, shrubs (71%) and grassland (26%) within 16 km, and shrubs (70%) and grassland (27%) within 80 km.

3 km
126 m
16 km
284 m
80 km
804 m
treesshrubsgrasslandcroplandartificial surfaces
September weather nearby: Piquet Carneiro 24 km · Mombaça 33 km · Pedra Branca 41 km · Solonópole 43 km · Quixeramobim 44 km · Acopiara 57 km · Banabuiú 59 km · Boa Viagem 65 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 Senador Pompeu (-5.5881°, -39.3717°, elevation 181 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).