Cariacica weather in September

In September, Cariacica sees average daytime highs of 26°C and overnight lows near 18°C, with 66 mm of rain across 10.6 wet days and about 11.9 hours of daylight. It is the 9th-warmest and 8th-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 31% of the time in September, and the air most often feels humid.

Daylight stretches from about 11 h 36 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is Cariacica's 6th-clearest and 2nd-windiest month. For the whole year in context, see Cariacica's year-round climate.

Daytime high
26°
9th warmest
Overnight low
18°
4th coldest
Rainfall
66 mm
10.6 wet days
Daylight
11 h 54 min
6:39 AM – 6:33 PM
Cloud cover
58%
6th clearest
Wind
10 km/h
2nd windiest
Solar energy
4.92 kWh/m²
Travel score
6.6
out of 10
Air quality
Good
PM10 26.9 µg/m³ · 2018

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical September day in Cariacica reaches about 26°C in the afternoon and slips back to 18°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 30°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C cooler than October.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12617
22617
32617
42617
52617
62617
72617
82617
92618
102618
112618
122618
132618
142618
152618
162618
172618
182618
192618
202618
212618
222618
232618
242618
252618
262618
272618
282618
292618
302618

How September really feels in Cariacica

Once humidity and wind are folded in, September averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Cariacica weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 22°1601513.14.4
Feb30° / 22°10813.312.74.3
Mar30° / 21°1721712.14.3
Apr28° / 20°11315.211.55.4
May26° / 18°6110.211.16.7
Jun26° / 17°38810.87.3
Jul25° / 16°438.710.97.3
Aug25° / 17°478.711.37.2
Sep26° / 18°6610.611.96.6
Oct27° / 19°12313.212.55.9
Nov27° / 20°22817.8134.9
Dec29° / 21°22718.413.24.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 52%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16040
26040
36040
46040
55941
65941
75941
85743
95644
105545
115446
125248
135149
145050
155050
164852
174753
184555
194456
204357
214159
224060
234060
243862
253862
263862
273763
283664
293565
303565

Chance of precipitation in September

Any precipitation

Cariacica gets around 66 mm of rain over 10.6 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 35% and peaks near 39% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
129
230
330
430
530
631
731
832
932
1033
1134
1234
1335
1435
1536
1636
1737
1837
1938
2038
2138
2238
2339
2439
2539
2639
2739
2839
2939
3039

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 50% of days. Sticky, muggy-or-worse air turns up on roughly 36% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
121659230
221658240
321658240
421657250
521657250
621656260
721556270
821556270
921554290
1021553300
1111454310
1211453320
1311353330
1411252350
1511251360
1611151370
1711150380
1811049391
1911048401
2021047401
2121046411
2221046421
232945431
242944431
252943442
262942452
272941462
282940472
292939482
302938492

Wind in September

Winds average 10 km/h in September.

Across September, daily wind ranges from about 10 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 36 min at the start of September to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over September. Sunrise moves from 6:54 AM to 6:26 AM, and sunset from 6:29 PM to 6:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:546:29
211.66:536:29
311.66:526:30
411.76:516:30
511.76:506:30
611.76:496:30
711.76:486:31
811.76:476:31
911.76:466:31
1011.86:456:31
1111.86:446:31
1211.86:436:32
1311.86:426:32
1411.86:416:32
1511.96:406:32
1611.96:396:33
1711.96:386:33
1811.96:376:33
1911.96:376:33
2012.06:366:33
2112.06:356:34
2212.06:346:34
2312.06:336:34
2412.06:326:34
2512.16:316:35
2612.16:306:35
2712.16:296:35
2812.16:286:35
2912.16:276:36
3012.26:266:36

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.92 kWh/m².

For context, solar energy here swings from a low near 3.64 kWh/m² to a high of 6.32 kWh/m² in February across the year — September's 4.92 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.9Bright
104.9Bright
114.9Bright
124.9Bright
134.9Bright
144.9Bright
154.9Bright
164.9Bright
174.9Bright
184.9Bright
194.9Bright
204.9Bright
214.9Bright
224.9Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
Planning a trip in September

Hazard calendar for Cariacica

In seasonPeak

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

Cariacica's rainy season runs October–April, when most of the year's rain falls.

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

Is September a good time to visit Cariacica?

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

6.6
Sightseeing
5th-best month of the year
6.3
Beach & pool
5th-best month of the year

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

What to pack for Cariacica in September

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

In September, Cariacica sees daytime highs around 26°C and nights near 18°C. Worth packing: light clothes, rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

Sea temperature near Cariacica in September

The nearest coast averages about 23°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 33 km away) is warmest in March at about 27°C and coldest in August near 23°C.

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

22°24°26°28°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb27Warm
Mar27Warm
Apr27Warm
May25Warm
Jun24Warm
Jul23Refreshing
Aug23Refreshing
Sep23Refreshing
Oct24Refreshing
Nov25Warm
Dec25Warm

UV index in Cariacica in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Cariacica peaks around February 10 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 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 highExtremeFeb 10UV 14Jun 20UV 6
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar12Extreme
Apr10Very high
May7High
Jun6High
Jul6High
Aug8Very high
Sep10Very high
Oct12Extreme
Nov13Extreme
Dec13Extreme
Location & terrain

Where is Cariacica?

Cariacica sits at 20.3°S, 40.4°W, 72 m above sea level, in Brazil. The nearest listed city is Vitória, 11 km away.

Topography around Cariacica

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

Within 3 km, the terrain around Cariacica has significant variations in elevation — a maximum elevation change of 375 m around an average of 51 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 807 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,981 m.

The land around Cariacica is covered by trees (50%) and grassland (36%) within 3 km, trees (49%) and grassland (27%) within 16 km, and trees (44%), water (30%) and grassland (23%) within 80 km.

3 km
375 m
16 km
807 m
80 km
1,981 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
September weather nearby: Vitória 11 km · Vila Velha 15 km · Viana 16 km · Serra 19 km · Domingos Martins 27 km · Marechal Floriano 32 km · Fundão 37 km · Santa Teresa 41 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 Cariacica (-20.2639°, -40.42°, elevation 72 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).