Guarujá in Spring

In spring (September, October and November), Guarujá sees average daytime highs around 23°C and overnight lows near 20°C, with 475 mm of rain over about 47 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.

Over the season highs climb from about 22°C in early September to 24°C by late November. The sky is clear or mostly clear about 24% of the time across spring, and the air most often feels muggy.

Spring is Guarujá's 3rd-best season to visit on our travel score. Guarujá has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Guarujá's year-round climate.

Avg daytime high: 23°C; 3rd-warmest season
Avg overnight low: 20°C
Rainfall: 475 mm; 47 wet days
Avg wind: 13 km/h
Travel score: 5.7; 3rd-best season
Months: Sep · Oct · Nov

← Winter Guarujá year-round climate Summer →

Spring Summer Fall Winter

Temperature in Guarujá in Spring

Average highAverage lowShaded bands: 10–90% of days

Over the season highs climb from about 22°C in early September to 24°C by late November.

A typical spring day in Guarujá reaches about 23°C and drops to 20°C overnight. The warmest of the three months is November, the coolest September.

Guarujá weather by month

How the three spring months (September, October and November) compare with the rest of the year — the season's months are highlighted.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	26° / 24°	226	20.9	13.3	4.9
Feb	27° / 24°	199	17.4	12.8	5.1
Mar	26° / 24°	207	19.5	12.2	5.3
Apr	25° / 22°	127	13.4	11.5	6.4
May	23° / 20°	125	12.7	10.9	6.5
Jun	22° / 19°	97	10	10.5	6.8
Jul	21° / 18°	115	10	10.7	6.8
Aug	21° / 18°	94	10.2	11.2	6.6
Sep	22° / 19°	142	14.3	11.9	5.9
Oct	23° / 20°	159	16.2	12.6	5.6
Nov	24° / 21°	174	16.8	13.2	5.7
Dec	25° / 23°	179	18.2	13.5	5.4

Cloud cover in Spring

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time across spring.

Chance of precipitation in Spring

Any precipitation

Guarujá gets around 475 mm of rain over 47 wet days across spring. The line is the day-by-day chance of measurable precipitation.

Humidity in Spring

DryComfortableHumidMuggyOppressiveMiserable

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

Wind in Spring

Winds average 13 km/h across spring.

Sunrise & sunset in Spring

DaylightNight

Daylight runs from about 11 h 30 min in early September to 13 h 24 min by late November. The lit band spans sunrise to sunset each day.

Solar energy in Spring

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day across spring, about 5.2 kWh/m².

Planning a trip in spring

Is spring a good time to visit Guarujá?

Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.

5.7

Sightseeing

3rd-best month of the year

4.3

Beach & pool

4th-best month of the year

spring is a reasonable time to visit Guarujá for sightseeing.

What to pack for Guarujá in Spring

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

In spring, Guarujá sees daytime highs around 23°C and nights near 20°C. Pack rain gear. Worth having: light clothes and sun protection. About 47 days see rain.

rain gearlight clothessun protection

Sea temperature near Guarujá in Spring

The nearest coast averages about 22°C across spring — 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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	27	27	27	26	24	22	21	21	21	22	23	25
Comfort	Warm	Warm	Warm	Warm	Refreshing	Refreshing	Refreshing	Refreshing	Refreshing	Refreshing	Refreshing	Warm

	Sea temperature (°C)	Comfort
Jan	27	Warm
Feb	27	Warm
Mar	27	Warm
Apr	26	Warm
May	24	Refreshing
Jun	22	Refreshing
Jul	21	Refreshing
Aug	21	Refreshing
Sep	21	Refreshing
Oct	22	Refreshing
Nov	23	Refreshing
Dec	25	Warm

UV index in Guarujá in Spring

LowModerateHighVery highExtreme

Clear-sky midday UV across spring averages 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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	13	14	10	8	6	5	5	7	7	10	12	13
Level	Extreme	Extreme	Very high	Very high	High	High	Moderate	High	Very high	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	13	Extreme
Feb	14	Extreme
Mar	10	Very high
Apr	8	Very high
May	6	High
Jun	5	High
Jul	5	Moderate
Aug	7	High
Sep	7	Very high
Oct	10	Extreme
Nov	12	Extreme
Dec	13	Extreme

Air quality in Guarujá in Spring

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where spring 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).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	25	24	26	28	36	49	52	47	41	31	25	26
Level	Moderate	Moderate	Moderate	Moderate	Poor	Poor	Poor	Poor	Poor	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	25	Moderate
Feb	24	Moderate
Mar	26	Moderate
Apr	28	Moderate
May	36	Poor
Jun	49	Poor
Jul	52	Poor
Aug	47	Poor
Sep	41	Poor
Oct	31	Moderate
Nov	25	Moderate
Dec	26	Moderate

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

water 36%

16 km

932 m

water 62%

80 km

1,434 m

water 50%

treesgrasslandartificial surfacesbare terrainwaterwetlandmangroves

← Winter Guarujá year-round climate Summer →

Spring 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

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.