Itamaraju weather in September

In September, Itamaraju sees average daytime highs of 27°C and overnight lows near 19°C, with 42 mm of rain across 10.6 wet days and about 11.9 hours of daylight. It is the 9th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 27% of the time in September, and the air most often feels muggy.

Daylight stretches from about 11 h 42 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Itamaraju's 4th-clearest and 4th-windiest month. For the whole year in context, see Itamaraju's year-round climate.

Daytime high
27°
9th warmest
Overnight low
19°
4th coldest
Rainfall
42 mm
10.6 wet days
Daylight
11 h 54 min
5:35 AM – 5:30 PM
Cloud cover
56%
4th clearest
Wind
11 km/h
4th windiest
Solar energy
4.72 kWh/m²
Travel score
6.3
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical September day in Itamaraju reaches about 27°C in the afternoon and slips back to 19°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 30°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C cooler than October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12718
22718
32719
42719
52719
62719
72719
82719
92719
102719
112719
122719
132719
142719
152719
162719
172819
182819
192820
202820
212820
222820
232820
242820
252820
262820
272820
282820
292820
302820

How September really feels in Itamaraju

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.

Itamaraju weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 23°7814.612.94.2
Feb31° / 23°6014.112.64.0
Mar31° / 23°11617.912.13.9
Apr30° / 22°811711.64.4
May28° / 20°6214.111.25.6
Jun27° / 19°4813.4116.1
Jul26° / 18°5014.911.16.1
Aug26° / 18°4011.811.46.4
Sep27° / 19°4210.611.96.3
Oct28° / 21°8713.312.45.4
Nov29° / 22°14616.312.84.6
Dec30° / 22°11914.7134.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 32% of September, with mostly cloudy or overcast conditions the remaining 41%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16337
26337
36337
46238
56139
66139
76139
86139
96139
106139
116139
126139
136139
146139
156139
166040
176040
186040
195941
205941
215941
225743
235743
245644
255545
265446
275347
285248
295248
305050

Chance of precipitation in September

Any precipitation

Itamaraju gets around 42 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 36% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
136
236
336
436
536
636
736
836
936
1036
1136
1236
1336
1436
1536
1636
1736
1835
1935
2035
2134
2234
2334
2434
2534
2634
2734
2835
2935
3036

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 67% of days. Sticky, muggy-or-worse air turns up on roughly 72% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1532621
2532621
3632611
4631621
5631621
6631621
7630631
8629641
9629641
10528652
11527662
12526672
13525673
14525673
15424693
16423694
17422704
18421705
19421705
20420706
21419716
22418717
23417727
24416728
25416728
26415729
274157110
284147210
294147111
304137211

Wind in September

Winds average 11 km/h in September.

Across September, daily wind ranges from about 10 km/h on the calmest days to 11 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
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 42 min at the start of September to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over September. Sunrise moves from 5:48 AM to 5:23 AM, and sunset from 5:28 PM to 5:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.75:485:28
211.75:475:28
311.75:465:28
411.75:465:28
511.75:455:28
611.75:445:28
711.85:435:29
811.85:425:29
911.85:415:29
1011.85:405:29
1111.85:405:29
1211.85:395:29
1311.95:385:29
1411.95:375:29
1511.95:365:29
1611.95:355:30
1711.95:345:30
1811.95:345:30
1912.05:335:30
2012.05:325:30
2112.05:315:30
2212.05:305:30
2312.05:295:30
2412.05:285:31
2512.15:285:31
2612.15:275:31
2712.15:265:31
2812.15:255:31
2912.15:245:31
3012.15:235:32

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.72 kWh/m².

For context, solar energy here swings from a low near 3.49 kWh/m² to a high of 6.11 kWh/m² in January across the year — September's 4.72 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.6Bright
64.6Bright
74.6Bright
84.6Bright
94.6Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.8Bright
254.8Bright
264.9Bright
274.9Bright
284.9Bright
294.9Bright
304.9Bright
Planning a trip in September

Is September a good time to visit Itamaraju?

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

6.3
Sightseeing
2nd-best month of the year
6.6
Beach & pool
1st-best month of the year

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

What to pack for Itamaraju in September

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

In September, Itamaraju sees daytime highs around 27°C and nights near 19°C. Pack light clothes. Worth having: rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

Sea temperature near Itamaraju in September

The nearest coast averages about 25°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 44 km away) is warmest in April at about 27°C and coldest in August near 25°C.

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

24°26°28°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb27Warm
Mar27Warm
Apr27Warm
May26Warm
Jun25Warm
Jul25Warm
Aug25Warm
Sep25Warm
Oct25Warm
Nov26Warm
Dec26Warm

UV index in Itamaraju 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 Itamaraju peaks around February 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 15UV 15Jun 21UV 7
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar14Extreme
Apr11Extreme
May8Very high
Jun7Very high
Jul7Very high
Aug9Very high
Sep10Extreme
Oct12Extreme
Nov14Extreme
Dec13Extreme
Location & terrain

Where is Itamaraju?

Itamaraju sits at 17.0°S, 39.5°W, 89 m above sea level, in Brazil. The nearest listed city is Prado, 47 km away.

Topography around Itamaraju

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

Within 3 km, the terrain around Itamaraju has only modest variations in elevation — a maximum elevation change of 153 m around an average of 60 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 617 m; within 80 km, large variations in elevation — a maximum elevation change of 1,031 m.

The land around Itamaraju is covered by grassland (54%) and trees (28%) within 3 km, grassland (53%) and trees (45%) within 16 km, and grassland (45%) and trees (36%) within 80 km.

3 km
153 m
16 km
617 m
80 km
1,031 m
treesgrasslandartificial surfaceswater
September weather nearby: Prado 47 km · Itabela 52 km · Guaratinga 57 km · Teixeira de Freitas 60 km · Alcobaça 64 km · Eunápolis 74 km · Medeiros Neto 82 km · Porto Seguro 82 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 Itamaraju (-17.0392°, -39.5311°, elevation 89 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).