Codó weather in September

In September, Codó sees average daytime highs of 35°C and overnight lows near 23°C, with 6 mm of rain across 1.2 wet days and about 12 hours of daylight. It is the 2nd-warmest and 11th-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 74% of the time in September, and the air most often feels oppressive.

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

Daytime high
35°
2nd warmest
Overnight low
23°
9th coldest
Rainfall
6 mm
1.2 wet days
Daylight
12 hours
5:51 AM – 5:49 PM
Cloud cover
33%
2nd clearest
Wind
8 km/h
2nd windiest
Solar energy
6.37 kWh/m²
Travel score
3.4
out of 10

Codó 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 Codó reaches about 35°C in the afternoon and slips back to 23°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 33°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)
13423
23423
33423
43423
53423
63423
73423
83423
93523
103523
113523
123523
133523
143523
153523
163523
173523
183523
193523
203523
213523
223523
233523
243524
253524
263524
273524
283524
293524
303524

How September really feels in Codó

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.

Codó weather by month

How September compares with the rest of the year at a glance. September is the 2nd-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 23°22624.212.22.8
Feb31° / 23°24924.212.12.7
Mar31° / 23°31528.6122.6
Apr31° / 23°26426.411.92.8
May31° / 23°12116.911.83.7
Jun32° / 23°264.911.74.7
Jul32° / 22°112.211.84.7
Aug34° / 22°40.711.94.1
Sep35° / 23°61.2123.4
Oct35° / 24°162.512.13.1
Nov34° / 24°47712.23.1
Dec33° / 24°11213.712.33.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 74% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 9%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1928
2928
3937
4937
5937
6937
7937
8937
9928
10928
11937
12928
13928
14928
15928
16928
17928
18919
19919
20919
21919
22919
23919
249010
259010
268911
278911
288911
298911
308713

Chance of precipitation in September

Any precipitation

Codó gets around 6 mm of rain over 1.2 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 4% and peaks near 5% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
12
22
33
43
53
63
73
83
93
103
113
124
134
144
154
164
174
184
194
204
214
224
234
244
254
264
274
284
294
305

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 48% of days. Sticky, muggy-or-worse air turns up on roughly 94% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
11104545
2194644
3194644
4194743
5194843
6194842
7194841
8194941
9194941
10194941
11194942
12184942
13184843
14174844
15164845
16164746
17154747
18154648
19144649
20144550
21134551
22034552
23024454
24024454
25014455
26014356
27014356
28014356
29014356
30004357

Wind in September

Winds average 8 km/h in September.

Across September, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

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 5:58 AM to 5:44 AM, and sunset from 5:53 PM to 5:46 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:585:53
211.95:575:52
311.95:575:52
411.95:565:52
511.95:565:52
611.95:555:52
711.95:555:51
811.95:555:51
911.95:545:51
1012.05:545:51
1112.05:535:50
1212.05:535:50
1312.05:525:50
1412.05:525:50
1512.05:515:49
1612.05:515:49
1712.05:505:49
1812.05:505:49
1912.05:495:48
2012.05:495:48
2112.05:485:48
2212.05:485:48
2312.05:475:47
2412.05:475:47
2512.05:465:47
2612.05:465:47
2712.05:455:47
2812.05:455:46
2912.05:445:46
3012.05:445:46

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.37 kWh/m².

For context, solar energy here swings from a low near 4.4 kWh/m² to a high of 6.39 kWh/m² in October across the year — September's 6.37 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.2Intense
46.3Intense
56.3Intense
66.3Intense
76.3Intense
86.3Intense
96.3Intense
106.3Intense
116.3Intense
126.3Intense
136.4Intense
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
276.5Intense
286.5Intense
296.5Intense
306.5Intense
Planning a trip in September

Hazard calendar for Codó

In seasonPeak

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

Codó's monsoon runs January–April, 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 Codó?

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

3.4
Sightseeing
5th-best month of the year
7.2
Beach & pool
4th-best month of the year

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

What to pack for Codó in September

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

In September, Codó sees daytime highs around 35°C and nights near 23°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Codó 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 Codó peaks around March 14 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 10 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 14UV 15Aug 10UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Very high
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Codó 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 Codó is worst in October — around 35 µg/m³ PM2.5 (moderate), about 4.0× the cleanest month (June, 9 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateOct 2134 µg/m³Jun 159 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb15Moderate
Mar14Moderate
Apr13Moderate
May10Good
Jun9Good
Jul11Good
Aug13Moderate
Sep19Moderate
Oct35Moderate
Nov30Moderate
Dec23Moderate
Location & terrain

Where is Codó?

Codó sits at 4.5°S, 43.9°W, 44 m above sea level, in Brazil. The nearest listed city is Timbiras, 23 km away.

Topography around Codó

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

Within 3 km, the terrain around Codó has only modest variations in elevation — a maximum elevation change of 78 m around an average of 57 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 123 m; within 80 km, only modest variations in elevation — a maximum elevation change of 231 m.

The land around Codó is covered by artificial surfaces (33%), trees (24%) and grassland (21%) within 3 km, trees (61%) and grassland (25%) within 16 km, and trees (68%) and grassland (23%) within 80 km.

3 km
78 m
16 km
123 m
80 km
231 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Timbiras 23 km · Coroatá 45 km · Aldeias Altas 50 km · Peritoró 50 km · Alto Alegre do Maranhão 68 km · São João do Soter 74 km · Caxias 74 km · Pedreiras 79 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 Codó (-4.4553°, -43.8856°, elevation 44 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. 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).