Lagoa Seca weather in September

In September, Lagoa Seca sees average daytime highs of 28°C and overnight lows near 20°C, with 19 mm of rain across 6.8 wet days and about 12 hours of daylight. It is the 9th-warmest and 10th-wettest month of the year here.

Highs climb over the month, from about 28°C in the first days to 29°C by the end. The sky is clear or mostly clear about 25% of the time in September, and the air most often feels muggy.

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

Daytime high
28°
9th warmest
Overnight low
20°
3rd coldest
Rainfall
19 mm
6.8 wet days
Daylight
12 hours
5:19 AM – 5:17 PM
Cloud cover
52%
2nd clearest
Wind
14 km/h
1st windiest
Solar energy
5.37 kWh/m²
Travel score
6.4
out of 10

Lagoa Seca 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

Highs climb over the month, from about 28°C in the first days to 29°C by the end.

A typical September day in Lagoa Seca reaches about 28°C in the afternoon and slips back to 20°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 30°C. Set against its neighbours, September runs about 1°C warmer than August and about 2°C cooler than October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12819
22819
32820
42820
52820
62820
72820
82820
92820
102820
112820
122820
132820
142820
152820
162820
172820
182820
192820
202920
212920
222920
232920
242920
252920
262920
272920
282920
292920
302920

How September really feels in Lagoa Seca

Once humidity and wind are folded in, September averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Lagoa Seca weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 22°4211.812.44.5
Feb31° / 22°4411.912.24.3
Mar31° / 22°6215.2124.2
Apr30° / 22°6415.311.84.4
May28° / 21°5814.411.75.3
Jun27° / 20°5813.111.65.9
Jul26° / 20°5212.611.66.2
Aug27° / 19°309.911.86.5
Sep28° / 20°196.8126.4
Oct30° / 20°165.712.25.7
Nov30° / 21°144.812.35.4
Dec31° / 21°227.912.44.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 38% of September, with mostly cloudy or overcast conditions the remaining 37%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15941
25941
35941
45941
55941
65941
75941
85842
95842
105842
115842
125941
135941
146040
156139
166139
176238
186337
196436
206535
216634
226733
236832
246931
257030
267129
277228
287228
297327
307327

Chance of precipitation in September

Any precipitation

Lagoa Seca gets around 19 mm of rain over 6.8 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 23% and peaks near 28% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
128
228
328
427
527
627
727
828
928
1028
1128
1227
1327
1427
1526
1625
1724
1823
1922
2021
2120
2219
2318
2417
2516
2616
2715
2815
2916
3016

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 68% of days. Sticky, muggy-or-worse air turns up on roughly 68% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)
13268
23268
33268
43268
53367
63367
73367
83466
93466
103466
113466
123466
133466
143466
153367
163367
173268
183268
193169
203169
213070
223070
233070
242971
252971
262872
272872
282773
292773
302674

Wind in September

Winds average 14 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 14 km/h on the calmest days to 14 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
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light 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 5:27 AM to 5:11 AM, and sunset from 5:19 PM to 5:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:275:19
211.95:275:19
311.95:265:19
411.95:265:19
511.95:255:18
611.95:255:18
711.95:245:18
811.95:235:18
911.95:235:18
1011.95:225:18
1111.95:225:17
1211.95:215:17
1311.95:215:17
1411.95:205:17
1512.05:195:17
1612.05:195:17
1712.05:185:16
1812.05:185:16
1912.05:175:16
2012.05:175:16
2112.05:165:16
2212.05:155:16
2312.05:155:15
2412.05:145:15
2512.05:145:15
2612.05:135:15
2712.05:135:15
2812.05:125:15
2912.05:125:15
3012.15:115:14

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.37 kWh/m².

For context, solar energy here swings from a low near 3.97 kWh/m² to a high of 6.11 kWh/m² in November across the year — September's 5.37 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.1Bright
95.1Bright
105.1Bright
115.2Bright
125.2Bright
135.2Bright
145.3Bright
155.3Bright
165.3Bright
175.4Bright
185.4Bright
195.5Bright
205.5Bright
215.6Bright
225.6Bright
235.7Bright
245.7Bright
255.7Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.9Bright
Planning a trip in September

Is September a good time to visit Lagoa Seca?

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

6.4
Sightseeing
2nd-best month of the year
7.4
Beach & pool
3rd-best month of the year

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

What to pack for Lagoa Seca in September

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

In September, Lagoa Seca sees daytime highs around 28°C and nights near 20°C. Pack light clothes. Worth having: sun protection. About 7 days see rain.

light clothessun protection

UV index in Lagoa Seca in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Lagoa Seca peaks around March 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 15 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 15Jul 15UV 10
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Extreme
Jul10Very high
Aug10Extreme
Sep13Extreme
Oct12Extreme
Nov13Extreme
Dec12Extreme
Location & terrain

Where is Lagoa Seca?

Lagoa Seca sits at 7.2°S, 35.9°W, 631 m above sea level, in Brazil. The nearest listed city is Campina Grande, 7.0 km away.

Topography around Lagoa Seca

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

Within 3 km, the terrain around Lagoa Seca has significant variations in elevation — a maximum elevation change of 273 m around an average of 573 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 489 m; within 80 km, large variations in elevation — a maximum elevation change of 768 m.

The land around Lagoa Seca is covered by grassland (52%) and shrubs (24%) within 3 km, grassland (51%) and shrubs (21%) within 16 km, and grassland (50%) and shrubs (39%) within 80 km.

3 km
273 m
16 km
489 m
80 km
768 m
treesshrubsgrasslandcroplandartificial surfaces
September weather nearby: Campina Grande 7.0 km · Alagoa Nova 15 km · Esperança 15 km · Queimadas 21 km · Remígio 24 km · Pocinhos 25 km · Alagoa Grande 29 km · Areia 29 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 Lagoa Seca (-7.1708°, -35.8536°, elevation 631 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).