São Lourenço da Serra weather in October

In October, São Lourenço da Serra sees average daytime highs of 24°C and overnight lows near 15°C, with 144 mm of rain across 17 wet days and about 12.6 hours of daylight. It is the 7th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 13% of the time in October, and the air most often feels humid.

Daylight stretches from about 12 h 12 min at the start of October to 12 h 54 min by month's end. Set against the rest of the year, October is São Lourenço da Serra's 9th-clearest and 1st-windiest month. For the whole year in context, see São Lourenço da Serra's year-round climate.

Daytime high
24°
7th warmest
Overnight low
15°
6th coldest
Rainfall
144 mm
17 wet days
Daylight
12 h 36 min
6:36 AM – 7:10 PM
Cloud cover
77%
9th clearest
Wind
11 km/h
1st windiest
Solar energy
5.1 kWh/m²
Travel score
5.6
out of 10

São Lourenço da Serra is human settlement in Brazil.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 24°C through the month.

A typical October day in São Lourenço da Serra reaches about 24°C in the afternoon and slips back to 15°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 30°C. Set against its neighbours, October runs about 1°C warmer than September and on par with November.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12315
22315
32315
42415
52415
62415
72415
82415
92415
102415
112415
122415
132415
142416
152416
162416
172416
182416
192416
202416
212416
222416
232416
242416
252416
262416
272416
282416
292416
302416
312416

São Lourenço da Serra weather by month

How October compares with the rest of the year at a glance. October is the 7th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 19°29225.913.34.1
Feb27° / 19°23822.212.84.3
Mar26° / 18°20922.812.24.7
Apr24° / 16°9113.411.56.2
May22° / 14°739.510.96.7
Jun21° / 13°616.810.67.1
Jul21° / 12°646.610.77.1
Aug22° / 12°506.411.27.4
Sep23° / 14°10711.111.96.6
Oct24° / 15°1441712.65.6
Nov24° / 16°18819.213.25.2
Dec26° / 18°22923.113.44.6

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 13% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 12% of October, with mostly cloudy or overcast conditions the remaining 76%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12674
22674
32674
42773
52773
62674
72773
82773
92773
102773
112773
122773
132575
142575
152575
162476
172278
182278
192278
202278
212278
222278
232278
242278
252278
262377
272377
282377
292377
302476
312476

Chance of precipitation in October

Any precipitation

São Lourenço da Serra gets around 144 mm of rain over 17 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 55% and peaks near 61% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
150
249
349
449
549
649
749
849
949
1050
1151
1251
1352
1453
1554
1655
1756
1857
1958
2059
2160
2260
2360
2461
2561
2660
2760
2860
2960
3061
3161

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the humid band about 48% of days. Sticky, muggy-or-worse air turns up on roughly 13% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11640404
21639415
31538425
41437436
51436446
61335457
71234468
81233478
91132489
1011314810
1110304911
1210294911
1310294912
1410284913
159285013
169275014
178275015
188265115
198265016
207265116
217255117
227255117
237255018
247255018
257255018
267254918
277254919
287254919
297254820
307244820
317244821

Wind in October

Winds average 11 km/h in October, the windiest month of the year.

Across October, daily wind ranges from about 11 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 12 h 12 min at the start of October to 12 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over October. Sunrise moves from 6:50 AM to 6:25 AM, and sunset from 7:03 PM to 7:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:507:03
212.26:497:04
312.36:487:04
412.36:477:05
512.36:467:05
612.36:457:05
712.46:447:06
812.46:437:06
912.46:427:07
1012.46:417:07
1112.56:407:07
1212.56:397:08
1312.56:387:08
1412.56:387:09
1512.56:377:09
1612.66:367:10
1712.66:357:10
1812.66:347:11
1912.66:337:11
2012.76:327:12
2112.76:327:12
2212.76:317:13
2312.76:307:13
2412.76:297:14
2512.86:297:14
2612.86:287:15
2712.86:277:16
2812.86:277:16
2912.86:267:17
3012.96:257:17
3112.96:257:18

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.1 kWh/m².

For context, solar energy here swings from a low near 3.23 kWh/m² to a high of 5.67 kWh/m² in December across the year — October's 5.1 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.8Bright
44.8Bright
54.8Bright
64.9Bright
74.9Bright
84.9Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.1Bright
145.1Bright
155.1Bright
165.1Bright
175.1Bright
185.2Bright
195.2Bright
205.2Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in October

Hazard calendar for São Lourenço da Serra

In seasonPeak

In October, São Lourenço da Serra sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

São Lourenço da Serra's rainy season runs October–March, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is October a good time to visit São Lourenço da Serra?

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

5.6
Sightseeing
7th-best month of the year
4.8
Beach & pool
4th-best month of the year

October is a reasonable time to visit São Lourenço da Serra for sightseeing.

What to pack for São Lourenço da Serra in October

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

In October, São Lourenço da Serra sees daytime highs around 24°C and nights near 15°C. Pack rain gear. Worth having: light clothes and sun protection. About 17 days see rain.

rain gearlight clothessun protection

Sea temperature near São Lourenço da Serra in October

The nearest coast averages about 22°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 44 km away) is warmest in February at about 27°C and coldest in August near 20°C.

The water stays above 20°C all year — warm enough for a swim any month.

20°25°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr26Warm
May24Refreshing
Jun22Refreshing
Jul21Refreshing
Aug20Refreshing
Sep21Refreshing
Oct22Refreshing
Nov23Refreshing
Dec25Warm

UV index in São Lourenço da Serra in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in São Lourenço da Serra peaks around January 23 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 23UV 14Jul 12UV 5
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar9Very high
Apr8Very high
May7High
Jun6High
Jul5Moderate
Aug7High
Sep7Very high
Oct10Extreme
Nov13Extreme
Dec13Extreme

Air quality in São Lourenço da Serra in October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.

Air quality in São Lourenço da Serra is worst in July — around 33 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (January, 17 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJul 2033 µg/m³Jan 1817 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb17Moderate
Mar18Moderate
Apr20Moderate
May24Moderate
Jun30Moderate
Jul33Moderate
Aug32Moderate
Sep29Moderate
Oct21Moderate
Nov17Moderate
Dec17Moderate
Location & terrain

Where is São Lourenço da Serra?

São Lourenço da Serra sits at 23.9°S, 46.9°W, 706 m above sea level, in Brazil. The nearest listed city is Embu-Guaçu, 14 km away.

Topography around São Lourenço da Serra

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São Lourenço da Serra.

Within 3 km, the terrain around São Lourenço da Serra has only modest variations in elevation — a maximum elevation change of 184 m around an average of 759 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 417 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,416 m.

The land around São Lourenço da Serra is covered by trees (87%) within 3 km, trees (90%) within 16 km, and trees (59%) within 80 km.

3 km
184 m
16 km
417 m
80 km
1,416 m
treesgrasslandcroplandartificial surfaceswatermangroves
October weather nearby: Embu-Guaçu 14 km · Juquitiba 16 km · Itapecerica da Serra 18 km · Parelheiros 22 km · Jardim Angela 23 km · Embu das Artes 24 km · Capao Redondo 26 km · Cotia 28 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 São Lourenço da Serra (-23.8525°, -46.9425°, elevation 706 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).