Morrinhos weather in September

In September, Morrinhos sees average daytime highs of 34°C and overnight lows near 25°C, with 2 mm of rain across 0.3 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 34°C through the month. The sky is clear or mostly clear about 84% of the time in September, and the air most often feels muggy.

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 Morrinhos's 1st-clearest and 1st-windiest month. For the whole year in context, see Morrinhos's year-round climate.

Daytime high
34°
1st warmest
Overnight low
25°
9th coldest
Rainfall
2 mm
0.3 wet days
Daylight
12 hours
5:35 AM – 5:34 PM
Cloud cover
23%
1st clearest
Wind
18 km/h
1st windiest
Solar energy
6.76 kWh/m²
Travel score
3.9
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 34°C through the month.

A typical September day in Morrinhos reaches about 34°C in the afternoon and slips back to 25°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 33°C and 35°C. Set against its neighbours, September runs on par with August and on par with October.

20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13424
23424
33424
43424
53424
63424
73424
83424
93424
103424
113424
123424
133424
143424
153425
163425
173425
183425
193425
203425
213425
223425
233425
243425
253425
263425
273425
283425
293425
303425

How September really feels in Morrinhos

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.

Morrinhos 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
Jan32° / 25°1061612.23.2
Feb31° / 24°15020.312.13.1
Mar31° / 24°22425.7122.9
Apr30° / 24°26624.811.93.0
May31° / 24°11216.111.93.8
Jun32° / 24°346.711.84.5
Jul33° / 24°142.811.84.5
Aug34° / 24°30.511.94.0
Sep34° / 25°20.3123.9
Oct34° / 25°40.612.13.7
Nov34° / 25°61.112.13.7
Dec34° / 25°235.112.23.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 84% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 11% of September, with mostly cloudy or overcast conditions the remaining 5%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1937
2937
3946
4946
5946
6946
7946
8946
9955
10955
11955
12955
13964
14964
15964
16964
17973
18973
19973
20973
21973
22973
23973
24973
25973
26973
27964
28955
29955
30955

Chance of precipitation in September

Any precipitation

Morrinhos gets around 2 mm of rain over 0.3 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 1% and peaks near 1% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
11
21
31
41
51
61
71
81
91
101
111
121
131
141
151
161
171
181
191
201
211
221
231
241
251
261
271
281
291
301

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 83% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)
138512
238512
338512
438512
538512
638512
738512
838512
938512
1038413
1138413
1238413
1338314
1438314
1528315
1628315
1728216
1828117
1918217
2018118
2118118
2218118
2318118
2418019
2508119
2608119
2708119
2808119
2908119
3008020

Wind in September

Winds average 18 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 18 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202530
Wind speed (km/h)Feels
118light breeze
218light breeze
318light breeze
418light breeze
518light breeze
618light breeze
718light breeze
818light breeze
918light breeze
1018light breeze
1118light breeze
1218light breeze
1318light breeze
1418light breeze
1518light breeze
1618light breeze
1718light breeze
1818light breeze
1918light breeze
2018light breeze
2118light breeze
2218light breeze
2318light breeze
2418light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3018light 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 5:42 AM to 5:29 AM, and sunset from 5:38 PM to 5:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:425:38
211.95:425:38
311.95:415:38
411.95:415:38
511.95:405:37
612.05:405:37
712.05:395:37
812.05:395:37
912.05:395:36
1012.05:385:36
1112.05:385:36
1212.05:375:35
1312.05:375:35
1412.05:365:35
1512.05:365:35
1612.05:355:34
1712.05:355:34
1812.05:345:34
1912.05:345:33
2012.05:335:33
2112.05:335:33
2212.05:335:33
2312.05:325:32
2412.05:325:32
2512.05:315:32
2612.05:315:32
2712.05:305:31
2812.05:305:31
2912.05:295:31
3012.05:295:31

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.76 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.61 kWh/m² to a high of 6.76 kWh/m² in September across the year — September's 6.76 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.6Intense
26.6Intense
36.6Intense
46.6Intense
56.7Intense
66.7Intense
76.7Intense
86.7Intense
96.7Intense
106.7Intense
116.7Intense
126.7Intense
136.7Intense
146.8Intense
156.8Intense
166.8Intense
176.8Intense
186.8Intense
196.8Intense
206.8Intense
216.8Intense
226.8Intense
236.8Intense
246.8Intense
256.8Intense
266.8Intense
276.8Intense
286.8Intense
296.8Intense
306.8Intense
Planning a trip in September

Hazard calendar for Morrinhos

In seasonPeak

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

Morrinhos's monsoon runs February–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 Morrinhos?

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

3.9
Sightseeing
4th-best month of the year
7.8
Beach & pool
2nd-best month of the year

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

What to pack for Morrinhos in September

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

In September, Morrinhos sees daytime highs around 34°C and nights near 25°C. Pack light clothes and sun protection.

light clothessun protection

Sea temperature near Morrinhos 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 48 km away) is warmest in April at about 29°C and coldest in August 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
Jun28Tropical
Jul27Warm
Aug27Warm
Sep27Warm
Oct27Warm
Nov28Warm
Dec28Tropical

UV index in Morrinhos 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 Morrinhos 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 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 16UV 15Jun 23UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar16Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec11Extreme
Location & terrain

Where is Morrinhos?

Morrinhos sits at 3.2°S, 40.1°W, 59 m above sea level, in Brazil. The nearest listed city is Marco, 12 km away.

Topography around Morrinhos

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

Within 3 km, the terrain around Morrinhos has only modest variations in elevation — a maximum elevation change of 113 m around an average of 35 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 647 m; within 80 km, large variations in elevation — a maximum elevation change of 1,063 m.

The land around Morrinhos is covered by grassland (39%), shrubs (35%) and trees (21%) within 3 km, shrubs (40%), trees (29%) and grassland (29%) within 16 km, and shrubs (34%), water (22%) and trees (21%) within 80 km.

3 km
113 m
16 km
647 m
80 km
1,063 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Marco 12 km · Bela Cruz 20 km · Santana do Acaraú 27 km · Amontada 36 km · Acaraú 38 km · Massapê 41 km · Itarema 42 km · Meruoca 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 Morrinhos (-3.2294°, -40.125°, elevation 59 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).