Morros weather in September

In September, Morros sees average daytime highs of 33°C and overnight lows near 25°C, with 11 mm of rain across 3.1 wet days and about 12 hours of daylight. It is the 1st-warmest and 12th-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 62% 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 Morros's 1st-clearest and 3rd-windiest month. For the whole year in context, see Morros's year-round climate.

Daytime high
33°
1st warmest
Overnight low
25°
9th coldest
Rainfall
11 mm
3.1 wet days
Daylight
12 hours
5:51 AM – 5:50 PM
Cloud cover
38%
1st clearest
Wind
14 km/h
3rd windiest
Solar energy
6.36 kWh/m²
Travel score
4.1
out of 10

Morros 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 33°C through the month.

A typical September day in Morros reaches about 33°C in the afternoon and slips back to 25°C overnight — a 9°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, September runs about 1°C warmer than August and on par with October.

20°25°30°35°151015202530
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

How September really feels in Morros

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.

Morros weather by month

How September compares with the rest of the year at a glance. September is the 1st-warmest and 12th-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 September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 62% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 28% of September, with mostly cloudy or overcast conditions the remaining 10%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1937
2937
3937
4937
5937
6937
7928
8928
9928
10928
11919
12919
13919
149010
159010
169010
178911
188911
198911
208911
218812
228812
238812
248812
258812
268713
278713
288713
298713
308614

Chance of precipitation in September

Any precipitation

Morros gets around 11 mm of rain over 3.1 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 11% and peaks near 13% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
113
212
312
411
511
610
710
810
910
1010
1110
1210
1310
1411
1511
1611
1711
1812
1912
2012
2112
2212
2312
2412
2512
2612
2712
2812
2912
3013

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 92% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
17921
27921
37921
48911
58911
69901
79901
810900
910900
1010900
1110900
1210900
1310900
149910
159910
169910
179910
188920
198920
208920
217930
227930
237930
246940
256940
266940
276940
285950
295950
305950

Wind in September

Winds average 14 km/h in September.

Across September, daily wind ranges from about 13 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
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light 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 5:58 AM to 5:45 AM, and sunset from 5:54 PM to 5:46 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:585:54
211.95:575:54
312.05:575:54
412.05:565:53
512.05:565:53
612.05:555:53
712.05:555:53
812.05:555:52
912.05:545:52
1012.05:545:52
1112.05:535:51
1212.05:535:51
1312.05:525:51
1412.05:525:51
1512.05:515:50
1612.05:515:50
1712.05:505:50
1812.05:505:49
1912.05:505:49
2012.05:495:49
2112.05:495:49
2212.05:485:48
2312.05:485:48
2412.05:475:48
2512.05:475:47
2612.05:465:47
2712.05:465:47
2812.05:465:47
2912.05:455:46
3012.05:455:46

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.36 kWh/m².

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 — September's 6.36 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.2Intense
46.2Intense
56.3Intense
66.3Intense
76.3Intense
86.3Intense
96.3Intense
106.3Intense
116.3Intense
126.3Intense
136.3Intense
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
296.4Intense
306.4Intense
Planning a trip in September

Hazard calendar for Morros

In seasonPeak

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

Morros'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 Morros?

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

4.1
Sightseeing
3rd-best month of the year
7.4
Beach & pool
1st-best month of the year

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

What to pack for Morros in September

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

In September, Morros sees daytime highs around 33°C and nights near 25°C. Pack light clothes and sun protection. About 3 days see rain.

light clothessun protection

Sea temperature near Morros in September

The nearest coast averages about 28°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 46 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 Morros 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 Morros 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 Morros 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 Morros 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 Morros?

Morros sits at 2.9°S, 44.0°W, 39 m above sea level, in Brazil. The nearest listed city is Icatu, 10 km away.

Topography around Morros

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

Within 3 km, the terrain around Morros has only modest variations in elevation — a maximum elevation change of 72 m around an average of 28 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 87 m; within 80 km, only modest variations in elevation — a maximum elevation change of 126 m.

The land around Morros is covered by trees (81%) within 3 km, trees (72%) within 16 km, and trees (45%) and water (24%) within 80 km.

3 km
72 m
16 km
87 m
80 km
126 m
treesshrubsgrasslandartificial surfaceswaterwetlandmangroves
September weather nearby: Icatu 10 km · Rosário 25 km · Bacabeira 33 km · São José de Ribamar 34 km · Paço do Lumiar 38 km · Santa Rita 44 km · São Luís 47 km · Raposa 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 Morros (-2.8644°, -44.0394°, elevation 39 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).