Indiaroba weather in September

In September, Indiaroba sees average daytime highs of 27°C and overnight lows near 22°C, with 57 mm of rain across 16.9 wet days and about 11.9 hours of daylight. It is the 9th-warmest and 7th-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 37% of the time in September, and the air most often feels muggy.

Daylight stretches from about 11 h 48 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Indiaroba's 1st-clearest and 4th-windiest month. For the whole year in context, see Indiaroba's year-round climate.

Daytime high
27°
9th warmest
Overnight low
22°
3rd coldest
Rainfall
57 mm
16.9 wet days
Daylight
11 h 54 min
5:26 AM – 5:22 PM
Cloud cover
48%
1st clearest
Wind
14 km/h
4th windiest
Solar energy
5.64 kWh/m²
Travel score
5.6
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 Indiaroba reaches about 27°C in the afternoon and slips back to 22°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 28°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C cooler than October.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12722
22722
32722
42722
52722
62722
72722
82722
92722
102722
112722
122722
132722
142722
152722
162722
172722
182722
192722
202722
212723
222723
232723
242723
252723
262723
272823
282823
292823
302823

How September really feels in Indiaroba

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.

Indiaroba weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 25°541512.64.6
Feb30° / 25°5616.112.44.2
Mar30° / 25°6518.412.14.1
Apr29° / 24°9820.211.84.1
May28° / 24°13722.711.54.5
Jun27° / 23°11923.411.34.7
Jul26° / 22°9622.711.44.9
Aug26° / 22°7821.311.65.1
Sep27° / 22°5716.911.95.6
Oct28° / 23°4813.812.35.8
Nov29° / 24°4612.212.55.3
Dec30° / 24°3611.212.75.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 41% of September, with mostly cloudy or overcast conditions the remaining 22%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17624
27624
37624
47525
57624
67624
77624
87624
97624
107624
117624
127624
137723
147723
157723
167723
177822
187822
198020
208020
218119
228119
238218
248218
258218
268218
278218
288218
298119
308119

Chance of precipitation in September

Any precipitation

Indiaroba gets around 57 mm of rain over 16.9 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 57% and peaks near 62% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
161
261
361
461
562
662
762
862
962
1062
1162
1262
1362
1461
1561
1660
1759
1858
1956
2055
2154
2252
2351
2450
2549
2648
2748
2847
2946
3046

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 51% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)
126038
225939
325840
425741
525741
615841
715742
815742
915742
1015742
1115643
1215544
1315544
1415445
1515346
1615346
1715247
1815148
1915049
2014950
2114752
2214653
2314554
2414455
2514257
2614158
2714059
2813960
2913960
3013861

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
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light 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 48 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 18 minutes over September. Sunrise moves from 5:36 AM to 5:17 AM, and sunset from 5:23 PM to 5:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.85:365:23
211.85:365:23
311.85:355:23
411.85:355:23
511.85:345:23
611.85:335:23
711.85:325:23
811.95:325:23
911.95:315:23
1011.95:305:23
1111.95:305:23
1211.95:295:23
1311.95:285:23
1411.95:285:23
1511.95:275:23
1611.95:265:22
1711.95:265:22
1812.05:255:22
1912.05:245:22
2012.05:235:22
2112.05:235:22
2212.05:225:22
2312.05:215:22
2412.05:215:22
2512.05:205:22
2612.05:195:22
2712.15:195:22
2812.15:185:22
2912.15:175:22
3012.15:175:22

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.64 kWh/m².

For context, solar energy here swings from a low near 4.09 kWh/m² to a high of 6.58 kWh/m² in December across the year — September's 5.64 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.4Bright
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.6Bright
155.6Bright
165.6Bright
175.7Bright
185.7Bright
195.7Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.9Bright
255.9Bright
265.9Bright
276.0Bright
286.0Bright
296.0Intense
306.0Intense
Planning a trip in September

Hazard calendar for Indiaroba

In seasonPeak

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

Indiaroba's rainy season runs March–August, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Indiaroba?

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

5.6
Sightseeing
2nd-best month of the year
5.7
Beach & pool
7th-best month of the year

September is a reasonable time to visit Indiaroba for sightseeing.

What to pack for Indiaroba in September

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

In September, Indiaroba sees daytime highs around 27°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

light clothesrain gearsun protection

Sea temperature near Indiaroba in September

The nearest coast averages about 26°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 19 km away) is warmest in April at about 28°C and coldest in August near 26°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb28Warm
Mar28Tropical
Apr28Tropical
May28Warm
Jun27Warm
Jul26Warm
Aug26Warm
Sep26Warm
Oct26Warm
Nov26Warm
Dec27Warm

UV index in Indiaroba 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 Indiaroba peaks around February 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 17UV 15Jul 10UV 9
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar14Extreme
Apr13Extreme
May10Very high
Jun9Very high
Jul9Very high
Aug10Very high
Sep12Extreme
Oct13Extreme
Nov13Extreme
Dec12Extreme
Location & terrain

Where is Indiaroba?

Indiaroba sits at 11.5°S, 37.5°W, 7 m above sea level, in Brazil. The nearest listed city is Umbaúba, 22 km away.

Topography around Indiaroba

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

Within 3 km, the terrain around Indiaroba has only modest variations in elevation — a maximum elevation change of 98 m around an average of 18 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 144 m; within 80 km, significant variations in elevation — a maximum elevation change of 538 m.

The land around Indiaroba is covered by trees (33%), grassland (29%) and mangroves (26%) within 3 km, trees (47%) and grassland (28%) within 16 km, and grassland (42%), water (29%) and trees (23%) within 80 km.

3 km
98 m
16 km
144 m
80 km
538 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
September weather nearby: Umbaúba 22 km · Cristinápolis 27 km · Estância 29 km · Conde 34 km · Itabaianinha 41 km · Boquim 43 km · Rio Real 46 km · Salgado 54 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 Indiaroba (-11.5192°, -37.5117°, elevation 7 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).