Guareí weather in October

In October, Guareí sees average daytime highs of 27°C and overnight lows near 17°C, with 124 mm of rain across 12.4 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 27°C through the month. The sky is clear or mostly clear about 22% 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 Guareí's 8th-clearest and 2nd-windiest month. For the whole year in context, see Guareí's year-round climate.

Daytime high
27°
6th warmest
Overnight low
17°
6th coldest
Rainfall
124 mm
12.4 wet days
Daylight
12 h 36 min
6:41 AM – 7:14 PM
Cloud cover
67%
8th clearest
Wind
11 km/h
2nd windiest
Solar energy
5.55 kWh/m²
Travel score
6.0
out of 10

Guareí 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 27°C through the month.

A typical October day in Guareí reaches about 27°C in the afternoon and slips back to 17°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 33°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)
12716
22716
32716
42716
52716
62716
72716
82716
92716
102716
112716
122716
132717
142817
152817
162817
172817
182817
192817
202817
212817
222817
232817
242817
252817
262817
272817
282817
292817
302817
312717

Guareí 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
Jan29° / 20°28322.613.34.0
Feb29° / 20°20819.212.84.1
Mar28° / 19°15317.712.25.0
Apr27° / 17°658.311.56.8
May24° / 14°646.610.97.5
Jun23° / 13°515.410.67.8
Jul23° / 12°464.610.78.0
Aug25° / 13°424.711.28.0
Sep26° / 15°838.711.96.9
Oct27° / 17°12412.412.56.0
Nov28° / 18°15414.913.15.5
Dec28° / 19°19919.813.44.4

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% 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 64%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14159
24159
34060
43961
53961
63961
73961
83862
93862
103763
113763
123862
133664
143664
153664
163664
173565
183565
193565
203466
213466
223466
233466
243466
253466
263466
273466
283367
293367
303367
313367

Chance of precipitation in October

Any precipitation

Guareí gets around 124 mm of rain over 12.4 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 40% and peaks near 43% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
237
337
437
537
637
737
837
937
1037
1138
1238
1338
1439
1539
1640
1741
1841
1942
2043
2143
2243
2343
2443
2543
2643
2743
2843
2943
3043
3143

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 43% of days. Sticky, muggy-or-worse air turns up on roughly 21% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
119353312
218353413
317343513
417333614
516333814
615323915
714314015
813304115
913294316
1012284416
1112274517
1211264518
1311254618
1410244619
1510244720
169234721
179224722
189224723
198214724
208214725
218214625
228214626
238214526
248214427
258214427
268214328
278214228
288214229
298214130
308214130
318214131

Wind in October

Winds average 11 km/h in October.

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 6:55 AM to 6:30 AM, and sunset from 7:08 PM to 7:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:557:08
212.26:547:09
312.36:537:09
412.36:527:09
512.36:517:10
612.36:507:10
712.46:497:10
812.46:487:11
912.46:477:11
1012.46:477:12
1112.46:467:12
1212.56:457:13
1312.56:447:13
1412.56:437:13
1512.56:427:14
1612.66:417:14
1712.66:407:15
1812.66:407:15
1912.66:397:16
2012.66:387:16
2112.76:377:17
2212.76:367:17
2312.76:367:18
2412.76:357:18
2512.76:347:19
2612.86:337:19
2712.86:337:20
2812.86:327:21
2912.86:327:21
3012.86:317:22
3112.96:307:22

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.55 kWh/m².

For context, solar energy here swings from a low near 3.39 kWh/m² to a high of 5.89 kWh/m² in December across the year — October's 5.55 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
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in October

Hazard calendar for Guareí

In seasonPeak

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

Guareí's rainy season runs November–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 Guareí?

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
6.2
Beach & pool
6th-best month of the year

October is a reasonable time to visit Guareí for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Guareí in October

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

In October, Guareí sees daytime highs around 27°C and nights near 17°C. Pack light clothes. Worth having: rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

UV index in Guareí 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 Guareí peaks around January 21 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 21UV 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 Guareí 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 Guareí is worst in September — around 22 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (November, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodSep 922 µg/m³Nov 2312 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb13Moderate
Mar13Moderate
Apr14Moderate
May17Moderate
Jun20Moderate
Jul21Moderate
Aug22Moderate
Sep22Moderate
Oct17Moderate
Nov12Good
Dec12Good
Location & terrain

Where is Guareí?

Guareí sits at 23.4°S, 48.2°W, 644 m above sea level, in Brazil. The nearest listed city is Angatuba, 27 km away.

Topography around Guareí

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

Within 3 km, the terrain around Guareí has only modest variations in elevation — a maximum elevation change of 88 m around an average of 648 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 356 m; within 80 km, significant variations in elevation — a maximum elevation change of 556 m.

The land around Guareí is covered by grassland (47%), cropland (26%) and trees (21%) within 3 km, trees (38%), grassland (36%) and cropland (25%) within 16 km, and trees (42%), cropland (30%) and grassland (24%) within 80 km.

3 km
88 m
16 km
356 m
80 km
556 m
treesgrasslandcroplandartificial surfaceswater
October weather nearby: Angatuba 27 km · Itapetininga 28 km · Cesário Lange 29 km · Tatuí 33 km · Conchas 44 km · Capela do Alto 47 km · Laranjal Paulista 51 km · Cerquilho 51 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 Guareí (-23.3728°, -48.1842°, elevation 644 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).