Guarujá weather in October

In October, Guarujá sees average daytime highs of 23°C and overnight lows near 20°C, with 159 mm of rain across 16.2 wet days and about 12.6 hours of daylight. It is the 8th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 19% of the time in October, and the air most often feels muggy.

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 Guarujá's 11th-clearest and 2nd-windiest month. For the whole year in context, see Guarujá's year-round climate.

Daytime high
23°
8th warmest
Overnight low
20°
6th coldest
Rainfall
159 mm
16.2 wet days
Daylight
12 h 36 min
6:33 AM – 7:07 PM
Cloud cover
70%
11th clearest
Wind
13 km/h
2nd windiest
Solar energy
5.23 kWh/m²
Travel score
5.6
out of 10

Guarujá 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 23°C through the month.

A typical October day in Guarujá reaches about 23°C in the afternoon and slips back to 20°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 25°C. Set against its neighbours, October runs about 1°C warmer than September and about 1°C cooler than November.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12219
22219
32219
42220
52220
62220
72220
82220
92220
102220
112220
122220
132320
142320
152320
162320
172320
182320
192320
202320
212320
222320
232320
242320
252321
262321
272321
282321
292321
302321
312321

Guarujá weather by month

How October compares with the rest of the year at a glance. October is the 8th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 24°22620.913.34.9
Feb27° / 24°19917.412.85.1
Mar26° / 24°20719.512.25.3
Apr25° / 22°12713.411.56.4
May23° / 20°12512.710.96.5
Jun22° / 19°971010.56.8
Jul21° / 18°1151010.76.8
Aug21° / 18°9410.211.26.6
Sep22° / 19°14214.311.95.9
Oct23° / 20°15916.212.65.6
Nov24° / 21°17416.813.25.7
Dec25° / 23°17918.213.55.4

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% 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 68%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13466
23367
33367
43367
53367
63367
73367
83466
93367
103367
113268
123268
133268
143169
153169
163169
173169
183169
193169
203169
213268
223268
233169
243268
253268
263268
273367
283268
293268
303268
313367

Chance of precipitation in October

Any precipitation

Guarujá gets around 159 mm of rain over 16.2 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 55% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
155
255
354
453
553
652
751
851
951
1051
1151
1251
1352
1452
1552
1653
1753
1853
1954
2054
2154
2255
2355
2455
2554
2654
2754
2854
2954
3054
3154

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the muggy band about 53% of days. Sticky, muggy-or-worse air turns up on roughly 65% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
131333464
221333475
321332475
421232486
521231496
621130516
721129517
821028537
921027538
1021026539
112926549
1219255510
1319255510
1419245511
1518245611
1618235612
1717235712
1817225812
1917225713
2017225713
2117215714
2217215714
2317215615
2417215615
2518215416
2618205516
2718205417
2818205318
2918205318
3018205219
3118205120

Wind in October

Winds average 13 km/h in October.

Across October, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

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 6:47 AM to 6:22 AM, and sunset from 7:01 PM to 7:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:477:01
212.26:467:01
312.36:457:01
412.36:447:02
512.36:437:02
612.36:427:03
712.46:417:03
812.46:407:03
912.46:397:04
1012.46:387:04
1112.56:377:05
1212.56:377:05
1312.56:367:06
1412.56:357:06
1512.56:347:07
1612.66:337:07
1712.66:327:08
1812.66:317:08
1912.66:307:09
2012.76:307:09
2112.76:297:10
2212.76:287:10
2312.76:277:11
2412.76:277:11
2512.86:267:12
2612.86:257:12
2712.86:247:13
2812.86:247:14
2912.96:237:14
3012.96:227:15
3112.96:227:15

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.23 kWh/m².

For context, solar energy here swings from a low near 3.16 kWh/m² to a high of 6.1 kWh/m² in December across the year — October's 5.23 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.9Bright
54.9Bright
65.0Bright
75.0Bright
85.0Bright
95.1Bright
105.1Bright
115.1Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.5Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in October

Is October a good time to visit Guarujá?

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

5.6
Sightseeing
8th-best month of the year
4.2
Beach & pool
10th-best month of the year

October is a reasonable time to visit Guarujá for sightseeing.

What to pack for Guarujá in October

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

In October, Guarujá sees daytime highs around 23°C and nights near 20°C. Pack rain gear. Worth having: light clothes and sun protection. About 16 days see rain.

rain gearlight clothessun protection

Sea temperature near Guarujá 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 19 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°25°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr26Warm
May24Refreshing
Jun22Refreshing
Jul21Refreshing
Aug21Refreshing
Sep21Refreshing
Oct22Refreshing
Nov23Refreshing
Dec25Warm

UV index in Guarujá 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 Guarujá peaks around February 10 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighHighVery highExtremeFeb 10UV 14Jul 12UV 5
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar10Very high
Apr8Very high
May6High
Jun5High
Jul5Moderate
Aug7High
Sep7Very high
Oct10Extreme
Nov12Extreme
Dec13Extreme

Air quality in Guarujá 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 Guarujá is worst in July — around 52 µg/m³ PM2.5 (poor), about 2.1× the cleanest month (February, 24 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateJul 1451 µg/m³Feb 1225 µg/m³
PM2.5 (µg/m³)Level
Jan25Moderate
Feb24Moderate
Mar26Moderate
Apr28Moderate
May36Poor
Jun49Poor
Jul52Poor
Aug47Poor
Sep41Poor
Oct31Moderate
Nov25Moderate
Dec26Moderate
Location & terrain

Where is Guarujá?

Guarujá sits at 24.0°S, 46.3°W, 13 m above sea level, in Brazil. The nearest listed city is Santos, 9.0 km away.

Topography around Guarujá

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

Within 3 km, the terrain around Guarujá has significant variations in elevation — a maximum elevation change of 278 m around an average of 17 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 932 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,434 m.

The land around Guarujá is covered by water (36%), artificial surfaces (33%) and trees (23%) within 3 km, water (62%) and trees (21%) within 16 km, and water (50%) and trees (35%) within 80 km.

3 km
278 m
16 km
932 m
80 km
1,434 m
treesgrasslandartificial surfacesbare terrainwaterwetlandmangroves
October weather nearby: Santos 9.0 km · São Vicente 14 km · Praia Grande 15 km · Bertioga 20 km · Cubatão 20 km · Rio Grande da Serra 31 km · Ribeirão Pires 35 km · Mongaguá 39 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 Guarujá (-23.9931°, -46.2564°, elevation 13 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).