Pombal weather in September

In September, Pombal sees average daytime highs of 35°C and overnight lows near 22°C, with 1 mm of rain across 0.2 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 68% 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 h 06 min by month's end. Set against the rest of the year, September is Pombal's 1st-clearest and 1st-windiest month. For the whole year in context, see Pombal's year-round climate.

Daytime high
35°
4th warmest
Overnight low
22°
4th coldest
Rainfall
1 mm
0.2 wet days
Daylight
12 hours
5:27 AM – 5:24 PM
Cloud cover
30%
1st clearest
Wind
15 km/h
1st windiest
Solar energy
6.76 kWh/m²
Travel score
3.3
out of 10

Pombal 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 Pombal reaches about 35°C in the afternoon and slips back to 22°C overnight — a 13°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 about 1°C cooler than October.

20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13422
23422
33522
43522
53522
63522
73522
83522
93522
103522
113522
123522
133522
143522
153522
163522
173522
183522
193522
203522
213522
223522
233522
243522
253622
263622
273622
283622
293623
303623

How September really feels in Pombal

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.

Pombal 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
Jan35° / 24°688.612.32.6
Feb34° / 24°8510.212.22.7
Mar34° / 24°13314122.9
Apr33° / 24°8111.111.93.3
May33° / 23°426.911.73.8
Jun32° / 22°173.611.64.4
Jul33° / 21°9211.64.5
Aug34° / 21°50.511.84.0
Sep35° / 22°10.2123.3
Oct36° / 23°50.612.22.7
Nov36° / 24°30.712.32.5
Dec36° / 24°172.612.42.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 68% 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 13%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18515
28515
38515
48515
58416
68416
78416
88416
98416
108416
118416
128416
138416
148416
158416
168614
178614
188614
198713
208713
218911
229010
239010
249010
25919
26919
279010
289010
29919
30919

Chance of precipitation in September

Any precipitation

Pombal gets around 1 mm of rain over 0.2 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 1% and peaks near 1% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
11
21
31
41
51
61
71
81
91
101
111
121
131
141
150
160
170
180
190
200
210
220
230
240
251
261
271
281
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 65% of days. Sticky, muggy-or-worse air turns up on roughly 6% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1032635
2032635
3032626
4032626
5032626
6132616
7131626
8131626
9131626
10130636
11130636
12129646
13129646
14128656
15128656
16128656
17127666
18127675
19127675
20127675
21127675
22127675
23127675
24127675
25127675
26127675
27127675
28127675
29126676
30126676

Wind in September

Winds average 15 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 15 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1616light 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 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over September. Sunrise moves from 5:35 AM to 5:19 AM, and sunset from 5:27 PM to 5:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:355:27
211.95:345:27
311.95:345:27
411.95:335:27
511.95:335:26
611.95:325:26
711.95:325:26
811.95:315:26
911.95:315:26
1011.95:305:26
1111.95:295:25
1211.95:295:25
1311.95:285:25
1412.05:285:25
1512.05:275:25
1612.05:275:24
1712.05:265:24
1812.05:265:24
1912.05:255:24
2012.05:245:24
2112.05:245:24
2212.05:235:23
2312.05:235:23
2412.05:225:23
2512.05:225:23
2612.05:215:23
2712.05:215:23
2812.05:205:22
2912.05:195:22
3012.15:195:22

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.76 kWh/m².

For context, solar energy here swings from a low near 4.73 kWh/m² to a high of 7.1 kWh/m² in October across the year — September's 6.76 kWh/m² sits near the top of that range.

02468151015202530
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.4Intense
46.4Intense
56.5Intense
66.5Intense
76.5Intense
86.5Intense
96.5Intense
106.6Intense
116.6Intense
126.6Intense
136.6Intense
146.7Intense
156.7Intense
166.8Intense
176.8Intense
186.8Intense
196.9Intense
206.9Intense
216.9Intense
227.0Intense
237.0Intense
247.0Intense
257.1Intense
267.1Intense
277.1Intense
287.1Intense
297.1Intense
307.2Intense
Planning a trip in September

Is September a good time to visit Pombal?

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

3.3
Sightseeing
5th-best month of the year
7.0
Beach & pool
4th-best month of the year

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

What to pack for Pombal in September

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

In September, Pombal sees daytime highs around 35°C and nights near 22°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Pombal 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 Pombal peaks around March 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 17 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 13UV 15Jul 17UV 9
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun10Very high
Jul9Very high
Aug10Very high
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec12Extreme

Air quality in Pombal 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 Pombal is worst in October — around 18 µg/m³ PM2.5 (moderate), about 4.2× the cleanest month (July, 4 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateOct 2418 µg/m³Jul 124 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb9Good
Mar8Good
Apr8Good
May6Good
Jun5Good
Jul4Good
Aug6Good
Sep14Moderate
Oct18Moderate
Nov18Moderate
Dec14Moderate
Location & terrain

Where is Pombal?

Pombal sits at 6.8°S, 37.8°W, 185 m above sea level, in Brazil. The nearest listed city is Sousa, 47 km away.

Topography around Pombal

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

Within 3 km, the terrain around Pombal has only modest variations in elevation — a maximum elevation change of 71 m around an average of 196 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 439 m; within 80 km, large variations in elevation — a maximum elevation change of 1,051 m.

The land around Pombal is covered by shrubs (45%) and grassland (35%) within 3 km, shrubs (67%) and grassland (26%) within 16 km, and shrubs (66%) and grassland (23%) within 80 km.

3 km
71 m
16 km
439 m
80 km
1,051 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Sousa 47 km · Catolé do Rocha 48 km · Piancó 50 km · São Bento 54 km · Patos 64 km · Itaporanga 71 km · São João do Rio do Peixe 72 km · Cajazeiras 84 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 Pombal (-6.7703°, -37.8017°, elevation 185 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).