Guaratinguetá weather in October

In October, Guaratinguetá sees average daytime highs of 26°C and overnight lows near 16°C, with 144 mm of rain across 16.4 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 26°C through the month. The sky is clear or mostly clear about 21% 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 48 min by month's end. Set against the rest of the year, October is Guaratinguetá's 8th-clearest and 2nd-windiest month. For the whole year in context, see Guaratinguetá's year-round climate.

Daytime high
26°
6th warmest
Overnight low
16°
7th coldest
Rainfall
144 mm
16.4 wet days
Daylight
12 h 30 min
6:30 AM – 7:02 PM
Cloud cover
68%
8th clearest
Wind
6 km/h
2nd windiest
Solar energy
5.32 kWh/m²
Travel score
5.6
out of 10

Guaratinguetá 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 26°C through the month.

A typical October day in Guaratinguetá 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)
12615
22616
32616
42616
52616
62616
72616
82616
92616
102616
112616
122616
132616
142616
152617
162617
172617
182617
192617
202617
212617
222617
232617
242617
252617
262617
272617
282617
292617
302617
312617

Guaratinguetá 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
Jan28° / 19°29624.113.24.3
Feb28° / 19°21019.512.84.6
Mar27° / 18°19620.512.24.9
Apr26° / 16°7911.411.56.5
May23° / 14°558.410.97.2
Jun23° / 12°335.810.67.7
Jul23° / 12°355.210.77.8
Aug24° / 12°375.811.27.9
Sep25° / 14°9110.911.96.7
Oct26° / 16°14416.412.55.6
Nov26° / 17°20719.513.15.0
Dec27° / 18°25422.813.44.4

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 15% 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 (%)
13961
23862
33862
43862
53862
63862
73862
83862
93862
103763
113763
123763
133664
143763
153763
163664
173763
183565
193565
203466
213466
223367
233367
243466
253367
263367
273367
283367
293367
303367
313367

Chance of precipitation in October

Any precipitation

Guaratinguetá gets around 144 mm of rain over 16.4 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 53% and peaks near 60% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
149
249
349
449
548
648
748
848
948
1048
1149
1249
1350
1451
1551
1652
1753
1855
1956
2057
2157
2258
2358
2458
2559
2659
2759
2859
2959
3059
3160

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 11% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11938384
21938394
31837405
41837415
51736415
61736426
71635436
81635436
91534447
101533457
111432468
121431478
131330488
141330489
1512294910
1611295010
1711285011
1810285111
199275212
208275213
218275213
228275114
237275214
247275115
257285015
267285016
277284916
287284817
297284817
307284818
317284818

Wind in October

Winds average 6 km/h in October.

Across October, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 12 h 12 min at the start of October to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over October. Sunrise moves from 6:43 AM to 6:19 AM, and sunset from 6:56 PM to 7:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:436:56
212.26:426:56
312.36:426:57
412.36:416:57
512.36:406:57
612.36:396:58
712.36:386:58
812.46:376:59
912.46:366:59
1012.46:356:59
1112.46:347:00
1212.56:337:00
1312.56:327:01
1412.56:317:01
1512.56:307:02
1612.56:307:02
1712.66:297:02
1812.66:287:03
1912.66:277:03
2012.66:267:04
2112.66:267:04
2212.76:257:05
2312.76:247:05
2412.76:247:06
2512.76:237:06
2612.76:227:07
2712.86:217:07
2812.86:217:08
2912.86:207:08
3012.86:207:09
3112.86:197:10

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.32 kWh/m².

For context, solar energy here swings from a low near 3.55 kWh/m² to a high of 5.61 kWh/m² in February across the year — October's 5.32 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.1Bright
45.1Bright
55.1Bright
65.1Bright
75.2Bright
85.2Bright
95.2Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.4Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.3Bright
315.3Bright
Planning a trip in October

Hazard calendar for Guaratinguetá

In seasonPeak

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

Guaratinguetá'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 Guaratinguetá?

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
5.4
Beach & pool
7th-best month of the year

October is a reasonable time to visit Guaratinguetá for sightseeing.

What to pack for Guaratinguetá in October

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

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

rain gearlight clothessun protection

Sea temperature near Guaratinguetá in October

The nearest coast averages about 23°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 67 km away) is warmest in February at about 27°C and coldest in August near 21°C.

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

20°22°24°26°28°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr26Warm
May24Warm
Jun23Refreshing
Jul22Refreshing
Aug21Refreshing
Sep22Refreshing
Oct23Refreshing
Nov23Refreshing
Dec25Warm

UV index in Guaratinguetá in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Guaratinguetá peaks around January 24 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 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 24UV 15Jul 11UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Very high
May7High
Jun6High
Jul6High
Aug8Very high
Sep7Very high
Oct12Extreme
Nov14Extreme
Dec15Extreme

Air quality in Guaratinguetá 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 Guaratinguetá is worst in September — around 19 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1518 µg/m³Dec 209 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb10Good
Mar10Good
Apr11Good
May13Moderate
Jun13Moderate
Jul13Moderate
Aug14Moderate
Sep19Moderate
Oct13Moderate
Nov10Good
Dec9Good
Location & terrain

Where is Guaratinguetá?

Guaratinguetá sits at 22.8°S, 45.2°W, 545 m above sea level, in Brazil. The nearest listed city is Aparecida, 5.0 km away.

Topography around Guaratinguetá

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

Within 3 km, the terrain around Guaratinguetá has only modest variations in elevation — a maximum elevation change of 200 m around an average of 560 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 828 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,756 m.

The land around Guaratinguetá is covered by grassland (35%), artificial surfaces (31%) and trees (28%) within 3 km, grassland (50%) and trees (33%) within 16 km, and trees (52%) and grassland (38%) within 80 km.

3 km
200 m
16 km
828 m
80 km
2,756 m
treesgrasslandcroplandartificial surfaceswater
October weather nearby: Aparecida 5.0 km · Potim 7.0 km · Lorena 12 km · Cachoeira Paulista 25 km · Pindamonhangaba 30 km · Cruzeiro 35 km · Cunha 37 km · Tremembé 40 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 Guaratinguetá (-22.8164°, -45.1925°, elevation 545 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).