Atibaia weather in October

In October, Atibaia sees average daytime highs of 26°C and overnight lows near 16°C, with 122 mm of rain across 14.1 wet days and about 12.5 hours of daylight. It is the 6th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 24% 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 Atibaia's 8th-clearest and 2nd-windiest month. For the whole year in context, see Atibaia's year-round climate.

Daytime high
26°
6th warmest
Overnight low
16°
7th coldest
Rainfall
122 mm
14.1 wet days
Daylight
12 h 30 min
6:35 AM – 7:08 PM
Cloud cover
66%
8th clearest
Wind
10 km/h
2nd windiest
Solar energy
5.52 kWh/m²
Travel score
6.0
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical October day in Atibaia reaches about 26°C in the afternoon and slips back to 16°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 31°C. Set against its neighbours, October runs on par with September and on par with November.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12515
22515
32516
42516
52616
62616
72616
82616
92616
102616
112616
122616
132616
142616
152616
162616
172616
182617
192617
202617
212617
222617
232617
242617
252617
262617
272617
282617
292617
302617
312617

Atibaia weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 19°24422.713.34.5
Feb27° / 19°18419.412.84.7
Mar27° / 18°15018.312.25.3
Apr25° / 16°649.411.56.9
May23° / 14°61710.97.4
Jun22° / 12°424.710.67.8
Jul22° / 12°434.210.77.9
Aug24° / 12°334.211.28.2
Sep25° / 15°828.911.97.1
Oct26° / 16°12214.112.56.0
Nov26° / 17°15616.313.15.5
Dec27° / 18°19220.613.44.8

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 14% of October, with mostly cloudy or overcast conditions the remaining 62%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14159
24159
34159
44159
54060
64060
74060
84060
94060
104060
114060
123862
133961
143862
153763
163862
173763
183763
193763
203763
213763
223763
233664
243664
253664
263664
273664
283565
293565
303664
313664

Chance of precipitation in October

Any precipitation

Atibaia gets around 122 mm of rain over 14.1 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 46% and peaks near 49% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
143
243
343
443
543
643
742
842
942
1043
1143
1243
1344
1444
1545
1645
1746
1847
1947
2048
2148
2249
2349
2449
2548
2648
2748
2848
2948
3049
3149

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 47% of days. Sticky, muggy-or-worse air turns up on roughly 10% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
12239382
22138392
32038402
41937413
51836423
61836434
71735444
81635455
91634455
101533466
111532476
121431477
131431488
141330488
151230499
1612295010
1711295010
1810285111
1910285012
209285112
219275113
229275014
239275014
249274915
259274915
269274816
279274816
289274717
299274717
309274618
319274618

Wind in October

Winds average 10 km/h in October.

Across October, 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.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

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 6:49 AM to 6:24 AM, and sunset from 7:02 PM to 7:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:497:02
212.26:487:02
312.36:477:02
412.36:467:03
512.36:457:03
612.36:447:03
712.36:437:04
812.46:427:04
912.46:417:05
1012.46:407:05
1112.46:397:05
1212.56:387:06
1312.56:377:06
1412.56:377:07
1512.56:367:07
1612.56:357:08
1712.66:347:08
1812.66:337:09
1912.66:327:09
2012.66:327:10
2112.76:317:10
2212.76:307:11
2312.76:297:11
2412.76:297:12
2512.76:287:12
2612.86:277:13
2712.86:277:13
2812.86:267:14
2912.86:257:14
3012.86:257:15
3112.96:247:15

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.52 kWh/m².

For context, solar energy here swings from a low near 3.58 kWh/m² to a high of 5.67 kWh/m² in November across the year — October's 5.52 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.4Bright
85.4Bright
95.4Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.5Bright
155.5Bright
165.5Bright
175.6Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
315.6Bright
Planning a trip in October

Hazard calendar for Atibaia

In seasonPeak

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

Atibaia'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 Atibaia?

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

6.0
Sightseeing
7th-best month of the year
5.7
Beach & pool
5th-best month of the year

October is a reasonable time to visit Atibaia for sightseeing.

What to pack for Atibaia in October

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

In October, Atibaia sees daytime highs around 26°C and nights near 16°C. Pack rain gear. Worth having: light clothes and sun protection. About 14 days see rain.

rain gearlight clothessun protection

UV index in Atibaia in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October 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 Atibaia peaks around January 20 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 20UV 15Jul 12UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug8Very high
Sep8Very high
Oct11Extreme
Nov13Extreme
Dec14Extreme

Air quality in Atibaia 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 Atibaia is worst in June — around 71 µg/m³ PM2.5 (unhealthy), about 2.3× the cleanest month (December, 31 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorUnhealthyPoorModerateJun 2370 µg/m³Dec 2031 µg/m³
PM2.5 (µg/m³)Level
Jan32Moderate
Feb34Moderate
Mar41Poor
Apr48Poor
May62Unhealthy
Jun71Unhealthy
Jul70Unhealthy
Aug60Unhealthy
Sep53Poor
Oct39Poor
Nov32Moderate
Dec31Moderate
Location & terrain

Where is Atibaia?

Atibaia sits at 23.1°S, 46.6°W, 817 m above sea level, in Brazil. The nearest listed city is Bom Jesus dos Perdões, 9.0 km away.

Topography around Atibaia

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

Within 3 km, the terrain around Atibaia has only modest variations in elevation — a maximum elevation change of 147 m around an average of 780 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 679 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,000 m.

The land around Atibaia is covered by artificial surfaces (44%), trees (32%) and grassland (21%) within 3 km, trees (52%) and grassland (34%) within 16 km, and trees (48%) and grassland (30%) within 80 km.

3 km
147 m
16 km
679 m
80 km
2,000 m
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Bom Jesus dos Perdões 9.0 km · Nazaré Paulista 17 km · Bragança Paulista 18 km · Jarinu 18 km · Piracaia 21 km · Mairiporã 23 km · Campo Limpo Paulista 26 km · Francisco Morato 27 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 Atibaia (-23.1169°, -46.5503°, elevation 817 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).