Lagoa Santa weather in September

In September, Lagoa Santa sees average daytime highs of 28°C and overnight lows near 16°C, with 40 mm of rain across 5.6 wet days and about 11.9 hours of daylight. It is the 5th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 51% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 36 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is Lagoa Santa's 4th-clearest and 1st-windiest month. For the whole year in context, see Lagoa Santa's year-round climate.

Daytime high
28°
5th warmest
Overnight low
16°
5th coldest
Rainfall
40 mm
5.6 wet days
Daylight
11 h 54 min
6:53 AM – 6:47 PM
Cloud cover
43%
4th clearest
Wind
10 km/h
1st windiest
Solar energy
5.84 kWh/m²
Travel score
6.9
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical September day in Lagoa Santa reaches about 28°C in the afternoon and slips back to 16°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 32°C. Set against its neighbours, September runs about 2°C warmer than August and on par with October.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12815
22815
32815
42816
52816
62816
72816
82816
92816
102816
112816
122816
132816
142816
152816
162817
172817
182817
192817
202817
212817
222817
232817
242817
252817
262817
272817
282817
292817
302817

Lagoa Santa weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 20°18816.613.14.9
Feb29° / 19°10211.312.75.1
Mar28° / 19°12114.512.15.3
Apr28° / 18°448.111.66.8
May26° / 15°264.311.17.8
Jun25° / 13°71.310.88.5
Jul25° / 13°40.610.98.8
Aug27° / 14°81.511.38.3
Sep28° / 16°405.611.96.9
Oct29° / 18°729.912.55.6
Nov28° / 19°16717.312.95.1
Dec28° / 19°22420.513.24.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 51% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 34%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17921
27921
37921
47822
57723
67624
77624
87426
97426
107228
117228
127030
136931
146832
156733
166535
176436
186238
196238
206139
215941
225842
235743
245644
255644
265545
275446
285446
295347
305347

Chance of precipitation in September

Any precipitation

Lagoa Santa gets around 40 mm of rain over 5.6 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 19% and peaks near 29% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
110
210
310
410
510
611
711
812
912
1013
1114
1215
1316
1416
1518
1619
1720
1821
1922
2023
2124
2225
2326
2426
2527
2628
2728
2828
2929
3029

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 42% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1593461
2593461
3583471
4583471
5573481
6563491
75534101
85434111
95334121
105234131
115035141
124935151
134736171
144536181
154337182
164137192
173938202
183838212
193639223
203439243
213339254
223139264
233039274
242938285
252838295
262737306
272636327
282535337
292435347
302334358

Wind in September

Winds average 10 km/h in September, the windiest month of the year.

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
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 36 min at the start of September to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over September. Sunrise moves from 7:07 AM to 6:40 AM, and sunset from 6:44 PM to 6:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.67:076:44
211.67:066:44
311.67:056:44
411.77:046:44
511.77:046:44
611.77:036:45
711.77:026:45
811.77:016:45
911.87:006:45
1011.86:596:45
1111.86:586:46
1211.86:576:46
1311.86:566:46
1411.96:556:46
1511.96:546:46
1611.96:536:47
1711.96:526:47
1811.96:516:47
1911.96:506:47
2012.06:496:47
2112.06:496:48
2212.06:486:48
2312.06:476:48
2412.06:466:48
2512.16:456:48
2612.16:446:49
2712.16:436:49
2812.16:426:49
2912.16:416:49
3012.26:406:50

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.84 kWh/m².

For context, solar energy here swings from a low near 4.11 kWh/m² to a high of 6.12 kWh/m² in February across the year — September's 5.84 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.8Bright
75.8Bright
85.8Bright
95.8Bright
105.8Bright
115.8Bright
125.8Bright
135.8Bright
145.9Bright
155.9Bright
165.9Bright
175.9Bright
185.9Bright
195.9Bright
205.9Bright
215.9Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
265.9Bright
275.9Bright
285.9Bright
295.9Bright
305.9Bright
Planning a trip in September

Hazard calendar for Lagoa Santa

In seasonPeak

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

Lagoa Santa's monsoon runs November–March, 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 Lagoa Santa?

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

6.9
Sightseeing
5th-best month of the year
7.8
Beach & pool
3rd-best month of the year

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

What to pack for Lagoa Santa in September

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

In September, Lagoa Santa sees daytime highs around 28°C and nights near 16°C. Pack light clothes. Worth having: sun protection. About 6 days see rain.

light clothessun protection

UV index in Lagoa Santa in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 11 (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 Santa peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeJan 21UV 15Jun 19UV 7
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr11Extreme
May8Very high
Jun7High
Jul7Very high
Aug9Very high
Sep11Extreme
Oct12Extreme
Nov14Extreme
Dec14Extreme

Air quality in Lagoa Santa 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 Lagoa Santa is worst in September — around 21 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (January, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1621 µg/m³Jan 1411 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb12Good
Mar13Moderate
Apr14Moderate
May17Moderate
Jun17Moderate
Jul16Moderate
Aug15Moderate
Sep21Moderate
Oct16Moderate
Nov12Good
Dec11Good
Location & terrain

Where is Lagoa Santa?

Lagoa Santa sits at 19.6°S, 43.9°W, 791 m above sea level, in Brazil. The nearest listed city is Vespasiano, 7.0 km away.

Topography around Lagoa Santa

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

Within 3 km, the terrain around Lagoa Santa has only modest variations in elevation — a maximum elevation change of 194 m around an average of 770 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 378 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,570 m.

The land around Lagoa Santa is covered by trees (38%), artificial surfaces (30%) and grassland (22%) within 3 km, trees (52%) and grassland (35%) within 16 km, and trees (50%) and grassland (39%) within 80 km.

3 km
194 m
16 km
378 m
80 km
1,570 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Vespasiano 7.0 km · São José da Lapa 10 km · Pedro Leopoldo 15 km · Santa Luzia 16 km · Matozinhos 21 km · Jaboticatubas 21 km · Ribeirão das Neves 25 km · Sabará 30 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 Santa (-19.6301°, -43.9009°, elevation 791 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).