Cocal weather in September

In September, Cocal sees average daytime highs of 35°C and overnight lows near 24°C, with 2 mm of rain across 0.4 wet days and about 12 hours of daylight. It is the 3rd-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 35°C through the month. The sky is clear or mostly clear about 71% of the time in September, and the air most often feels humid.

Daylight stretches from about 11 h 54 min at the start of September to 12 hours by month's end. Set against the rest of the year, September is Cocal's 1st-clearest and 3rd-windiest month. For the whole year in context, see Cocal's year-round climate.

Daytime high
35°
3rd warmest
Overnight low
24°
9th coldest
Rainfall
2 mm
0.4 wet days
Daylight
12 hours
5:41 AM – 5:40 PM
Cloud cover
33%
1st clearest
Wind
14 km/h
3rd windiest
Solar energy
6.87 kWh/m²
Travel score
3.2
out of 10

Cocal is human settlement in Brazil.

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 35°C through the month.

A typical September day in Cocal reaches about 35°C in the afternoon and slips back to 24°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 34°C and 36°C. Set against its neighbours, September runs about 1°C warmer than August and on par with October.

20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13523
23523
33523
43523
53523
63523
73523
83523
93523
103523
113523
123523
133523
143524
153524
163524
173524
183524
193524
203524
213524
223524
233524
243524
253524
263524
273624
283624
293624
303624

How September really feels in Cocal

Once humidity and wind are folded in, September averages 30 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
30
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Cocal weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 23°17017.512.23.0
Feb31° / 23°20720.412.13.0
Mar31° / 23°30325123.0
Apr30° / 23°35223.811.93.1
May31° / 23°17115.711.83.8
Jun32° / 23°366.411.84.5
Jul33° / 22°132.611.84.4
Aug34° / 23°50.611.93.8
Sep35° / 24°20.4123.2
Oct36° / 24°90.812.12.8
Nov36° / 24°91.812.22.7
Dec35° / 24°456.412.22.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 71% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 21% of September, with mostly cloudy or overcast conditions the remaining 8%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1919
2919
3919
4919
5919
6919
7919
8919
9919
10928
11928
12928
13928
14937
15937
16937
17937
18937
19946
20937
21937
22937
23937
24937
25937
26937
27928
28928
29928
30928

Chance of precipitation in September

Any precipitation

Cocal gets around 2 mm of rain over 0.4 wet days in September, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 2% and peaks near 2% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
11
21
31
41
51
61
71
81
91
101
111
121
131
142
152
162
172
182
192
202
212
222
232
242
252
262
272
282
292
302

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 55% of days. Sticky, muggy-or-worse air turns up on roughly 43% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1353440
2353440
3354430
4355420
5356410
6357400
7357400
8358390
9358390
10358390
11357400
12357400
13357400
14356410
15356410
16355420
17255430
18255430
19254440
20254440
21253441
22253441
23253441
24253441
25253441
26253441
27253441
28253441
29253441
30253441

Wind in September

Winds average 14 km/h in September.

Across September, daily wind ranges from about 12 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
112light breeze
212light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 54 min at the start of September to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over September. Sunrise moves from 5:48 AM to 5:35 AM, and sunset from 5:44 PM to 5:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:485:44
211.95:485:44
311.95:475:43
411.95:475:43
511.95:465:43
611.95:465:43
712.05:455:42
812.05:455:42
912.05:445:42
1012.05:445:42
1112.05:435:41
1212.05:435:41
1312.05:435:41
1412.05:425:41
1512.05:425:40
1612.05:415:40
1712.05:415:40
1812.05:405:39
1912.05:405:39
2012.05:395:39
2112.05:395:39
2212.05:385:38
2312.05:385:38
2412.05:375:38
2512.05:375:38
2612.05:365:37
2712.05:365:37
2812.05:365:37
2912.05:355:37
3012.05:355:36

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.87 kWh/m².

For context, solar energy here swings from a low near 4.87 kWh/m² to a high of 6.98 kWh/m² in October across the year — September's 6.87 kWh/m² sits near the top of that range.

02468151015202530
Solar energy (kWh/m²)Level
16.6Intense
26.7Intense
36.7Intense
46.7Intense
56.7Intense
66.7Intense
76.8Intense
86.8Intense
96.8Intense
106.8Intense
116.8Intense
126.8Intense
136.8Intense
146.8Intense
156.9Intense
166.9Intense
176.9Intense
186.9Intense
196.9Intense
206.9Intense
216.9Intense
226.9Intense
237.0Intense
247.0Intense
257.0Intense
267.0Intense
277.0Intense
287.0Intense
297.0Intense
307.0Intense
Planning a trip in September

Hazard calendar for Cocal

In seasonPeak

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

Cocal'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 September a good time to visit Cocal?

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

3.2
Sightseeing
5th-best month of the year
6.9
Beach & pool
4th-best month of the year

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

What to pack for Cocal in September

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

In September, Cocal sees daytime highs around 35°C and nights near 24°C. Pack light clothes and sun protection.

light clothessun protection

Sea temperature near Cocal in September

The nearest coast averages about 27°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 67 km away) is warmest in May at about 29°C and coldest in September near 27°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
Mar29Tropical
Apr29Tropical
May29Tropical
Jun29Tropical
Jul28Warm
Aug27Warm
Sep27Warm
Oct27Warm
Nov28Warm
Dec28Tropical

UV index in Cocal in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Cocal peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 16UV 15Jun 23UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Extreme
Jul10Extreme
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Cocal in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Cocal is worst in December — around 17 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (July, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateDec 1017 µg/m³Jul 176 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb14Moderate
Mar12Moderate
Apr12Good
May9Good
Jun7Good
Jul6Good
Aug7Good
Sep8Good
Oct12Moderate
Nov17Moderate
Dec17Moderate
Location & terrain

Where is Cocal?

Cocal sits at 3.5°S, 41.6°W, 129 m above sea level, in Brazil. The nearest listed city is Buriti dos Lopes, 48 km away.

Topography around Cocal

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

Within 3 km, the terrain around Cocal has only modest variations in elevation — a maximum elevation change of 93 m around an average of 143 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 400 m; within 80 km, large variations in elevation — a maximum elevation change of 926 m.

The land around Cocal is covered by trees (56%) and grassland (25%) within 3 km, trees (71%) within 16 km, and trees (48%) and shrubs (27%) within 80 km.

3 km
93 m
16 km
400 m
80 km
926 m
treesshrubsgrasslandartificial surfacesbare terrainwaterwetlandmangroves
September weather nearby: Buriti dos Lopes 48 km · Viçosa do Ceará 53 km · Piracuruca 53 km · Luís Correia 67 km · Parnaíba 68 km · Tianguá 69 km · Ilha Grande 75 km · Araioses 75 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 Cocal (-3.4719°, -41.5575°, elevation 129 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).