Icatu weather in October

In October, Icatu sees average daytime highs of 33°C and overnight lows near 25°C, with 20 mm of rain across 4.7 wet days and about 12.1 hours of daylight. It is the 1st-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 49% of the time in October, and the air most often feels oppressive.

Daylight stretches from about 12 hours at the start of October to 12 h 06 min by month's end. Set against the rest of the year, October is Icatu's 3rd-clearest and 1st-windiest month. For the whole year in context, see Icatu's year-round climate.

Daytime high
33°
1st warmest
Overnight low
25°
11th coldest
Rainfall
20 mm
4.7 wet days
Daylight
12 h 06 min
5:39 AM – 5:43 PM
Cloud cover
45%
3rd clearest
Wind
15 km/h
1st windiest
Solar energy
6.44 kWh/m²
Travel score
3.9
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 33°C through the month.

A typical October day in Icatu reaches about 33°C in the afternoon and slips back to 25°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 32°C and 35°C. Set against its neighbours, October runs on par with September and on par with November.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13325
23325
33325
43325
53325
63325
73325
83325
93325
103325
113325
123325
133325
143325
153325
163325
173325
183325
193325
203325
213325
223325
233325
243325
253325
263325
273325
283325
293325
303325
313325

How October really feels in Icatu

Once humidity and wind are folded in, October averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in October is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Icatu weather by month

How October compares with the rest of the year at a glance. October is the 1st-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 24°23925.312.12.8
Feb30° / 24°31225.612.12.7
Mar30° / 24°43230.2122.6
Apr30° / 24°44028.711.92.6
May31° / 24°28825.511.93.0
Jun31° / 24°12017.611.83.8
Jul31° / 24°7313.111.94.4
Aug32° / 24°205.611.94.4
Sep33° / 25°113.1124.1
Oct33° / 25°204.712.13.9
Nov33° / 25°367.412.13.8
Dec32° / 25°8715.512.23.3

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 49% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 30% of October, with mostly cloudy or overcast conditions the remaining 21%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18614
28614
38515
48515
58416
68317
78317
88317
98218
108119
118119
128119
138020
148020
157921
167921
177921
187822
197822
207822
217723
227723
237525
247426
257426
267327
277327
287129
297030
307030
316931

Chance of precipitation in October

Any precipitation

Icatu gets around 20 mm of rain over 4.7 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 16% and peaks near 20% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
113
213
313
413
513
613
714
814
914
1014
1115
1215
1315
1415
1515
1615
1716
1816
1916
2016
2117
2217
2317
2417
2518
2618
2719
2819
2920
3020
3120

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the oppressive band about 96% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
15950
25950
34960
44960
54960
64960
74960
84960
94960
104960
114960
124951
134951
144951
154951
164951
174951
184951
194951
204951
214951
224951
234951
244951
254951
264951
273961
283961
293961
303961
313961

Wind in October

Winds average 15 km/h in October, the windiest month of the year.

Across October, daily wind ranges from about 14 km/h on the calmest days to 15 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
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 12 hours at the start of October to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over October. Sunrise moves from 5:45 AM to 5:37 AM, and sunset from 5:46 PM to 5:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.05:455:46
212.05:445:46
312.05:445:45
412.05:435:45
512.05:435:45
612.05:435:45
712.05:425:45
812.05:425:44
912.05:425:44
1012.05:415:44
1112.05:415:44
1212.15:415:44
1312.15:405:44
1412.15:405:43
1512.15:405:43
1612.15:395:43
1712.15:395:43
1812.15:395:43
1912.15:395:43
2012.15:385:43
2112.15:385:43
2212.15:385:43
2312.15:385:43
2412.15:385:43
2512.15:385:43
2612.15:375:43
2712.15:375:43
2812.15:375:43
2912.15:375:43
3012.15:375:43
3112.15:375:43

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 6.44 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.57 kWh/m² to a high of 6.44 kWh/m² in October across the year — October's 6.44 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.4Intense
26.5Intense
36.5Intense
46.5Intense
56.5Intense
66.5Intense
76.5Intense
86.5Intense
96.5Intense
106.5Intense
116.5Intense
126.5Intense
136.5Intense
146.4Intense
156.4Intense
166.4Intense
176.4Intense
186.4Intense
196.4Intense
206.4Intense
216.4Intense
226.4Intense
236.4Intense
246.4Intense
256.4Intense
266.4Intense
276.4Intense
286.4Intense
296.3Intense
306.3Intense
316.3Intense
Planning a trip in October

Hazard calendar for Icatu

In seasonPeak

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

Icatu's monsoon runs January–May, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is October a good time to visit Icatu?

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

3.9
Sightseeing
4th-best month of the year
7.1
Beach & pool
3rd-best month of the year

October is a weaker month for outdoor sightseeing in Icatu. The water and warmth also suit a beach or pool day.

What to pack for Icatu in October

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

In October, Icatu sees daytime highs around 33°C and nights near 25°C. Pack light clothes and sun protection. About 5 days see rain.

light clothessun protection

Sea temperature near Icatu in October

The nearest coast averages about 28°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 38 km away) is warmest in May at about 29°C and coldest in October near 28°C.

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

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb28Tropical
Mar28Tropical
Apr29Tropical
May29Tropical
Jun29Tropical
Jul28Tropical
Aug28Tropical
Sep28Warm
Oct28Warm
Nov28Warm
Dec28Warm

UV index in Icatu 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 Icatu peaks around March 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 17 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 17UV 15Jul 17UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar16Extreme
Apr14Extreme
May11Extreme
Jun10Extreme
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Icatu 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 Icatu is worst in February — around 17 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (June, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateFeb 2017 µg/m³Jun 149 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb17Moderate
Mar17Moderate
Apr14Moderate
May10Good
Jun9Good
Jul11Good
Aug10Good
Sep10Good
Oct12Moderate
Nov14Moderate
Dec14Moderate
Location & terrain

Where is Icatu?

Icatu sits at 2.8°S, 44.1°W, 8 m above sea level, in Brazil. The nearest listed city is Morros, 10 km away.

Topography around Icatu

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

Within 3 km, the terrain around Icatu has only modest variations in elevation — a maximum elevation change of 76 m around an average of 22 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 84 m; within 80 km, only modest variations in elevation — a maximum elevation change of 128 m.

The land around Icatu is covered by mangroves (42%), trees (29%) and water (21%) within 3 km, trees (53%) and water (28%) within 16 km, and trees (41%) and water (29%) within 80 km.

3 km
76 m
16 km
84 m
80 km
128 m
treesshrubsgrasslandartificial surfaceswaterwetlandmangroves
October weather nearby: Morros 10 km · São José de Ribamar 24 km · Rosário 27 km · Paço do Lumiar 27 km · Bacabeira 35 km · São Luís 38 km · Raposa 39 km · Santa Rita 50 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 Icatu (-2.7758°, -44.0658°, elevation 8 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).