Agua Rasa weather in September

In September, Agua Rasa sees average daytime highs of 24°C and overnight lows near 15°C, with 90 mm of rain across 9.8 wet days and about 11.9 hours of daylight. It is the 8th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 34% of the time in September, and the air most often feels comfortable.

Daylight stretches from about 11 h 30 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is Agua Rasa's 6th-clearest and 1st-windiest month. For the whole year in context, see Agua Rasa's year-round climate.

Daytime high
24°
8th warmest
Overnight low
15°
5th coldest
Rainfall
90 mm
9.8 wet days
Daylight
11 h 54 min
7:05 AM – 6:57 PM
Cloud cover
60%
6th clearest
Wind
11 km/h
1st windiest
Solar energy
4.69 kWh/m²
Travel score
6.9
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 24°C through the month.

A typical September day in Agua Rasa reaches about 24°C in the afternoon and slips back to 15°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 31°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C cooler than October.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12414
22414
32414
42414
52414
62514
72514
82514
92514
102515
112515
122515
132515
142515
152415
162415
172415
182415
192415
202415
212415
222415
232415
242415
252415
262415
272415
282415
292415
302415

Agua Rasa weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 19°23223.813.34.3
Feb28° / 19°17920.212.84.5
Mar27° / 19°15420.112.25.0
Apr25° / 17°6410.711.56.6
May23° / 14°647.810.97.1
Jun22° / 13°475.610.67.5
Jul22° / 12°545.610.77.5
Aug23° / 13°405.211.27.8
Sep24° / 15°909.811.96.9
Oct25° / 16°11614.712.65.9
Nov25° / 17°15216.813.15.4
Dec27° / 18°18120.913.44.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 11% of September, with mostly cloudy or overcast conditions the remaining 55%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16040
25941
35842
45743
55545
65446
75347
85248
95149
105050
114951
124852
134654
144654
154555
164456
174357
184258
194159
203961
213862
223862
233763
243664
253565
263466
273466
283367
293367
303367

Chance of precipitation in September

Any precipitation

Agua Rasa gets around 90 mm of rain over 9.8 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 32% and peaks near 44% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
121
222
323
423
524
625
725
826
927
1027
1128
1228
1329
1430
1531
1631
1732
1833
1934
2036
2137
2238
2339
2440
2541
2642
2743
2843
2944
3044

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the comfortable band about 45% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14247120
24147120
34046130
44046140
53946150
63846160
73746170
83646180
93546190
103347200
113247210
123147220
132947230
142847240
152747260
162647271
172547281
182446291
192346301
202345311
212245322
222144332
232043342
242043353
251942363
261841373
271840384
281740394
291639404
301638415

Wind in September

Winds average 11 km/h in September, the windiest month of the year.

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
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
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 30 min at the start of September to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over September. Sunrise moves from 7:20 AM to 6:50 AM, and sunset from 6:52 PM to 7:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.57:206:52
211.57:196:52
311.67:186:52
411.67:176:53
511.67:166:53
611.67:156:53
711.77:146:54
811.77:136:54
911.77:126:54
1011.77:116:55
1111.77:106:55
1211.87:096:55
1311.87:086:56
1411.87:076:56
1511.87:066:56
1611.97:056:57
1711.97:046:57
1811.97:036:57
1911.97:016:58
2012.07:006:58
2112.06:596:58
2212.06:586:59
2312.06:576:59
2412.16:566:59
2512.16:557:00
2612.16:547:00
2712.16:537:00
2812.16:527:01
2912.26:517:01
3012.26:507:01

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.69 kWh/m².

For context, solar energy here swings from a low near 3.31 kWh/m² to a high of 5.64 kWh/m² in December across the year — September's 4.69 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.7Bright
194.7Bright
204.7Bright
214.7Bright
224.7Bright
234.7Bright
244.7Bright
254.7Bright
264.7Bright
274.7Bright
284.7Bright
294.7Bright
304.8Bright
Planning a trip in September

Hazard calendar for Agua Rasa

In seasonPeak

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

Agua Rasa's rainy season runs October–March, 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 Agua Rasa?

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

6.9
Sightseeing
5th-best month of the year
6.1
Beach & pool
2nd-best month of the year

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

What to pack for Agua Rasa in September

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

In September, Agua Rasa sees daytime highs around 24°C and nights near 15°C. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

Sea temperature near Agua Rasa in September

The nearest coast averages about 21°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 57 km away) is warmest in February at about 27°C and coldest in August near 21°C.

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

20°25°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr26Warm
May24Refreshing
Jun22Refreshing
Jul21Refreshing
Aug21Refreshing
Sep21Refreshing
Oct22Refreshing
Nov23Refreshing
Dec25Warm

UV index in Agua Rasa in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Agua Rasa peaks around February 8 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 14 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeFeb 8UV 14Jul 14UV 5
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar10Extreme
Apr9Very high
May7High
Jun6High
Jul5Moderate
Aug7Very high
Sep8Very high
Oct11Extreme
Nov12Extreme
Dec14Extreme

Air quality in Agua Rasa 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 Agua Rasa is worst in June — around 71 µg/m³ PM2.5 (unhealthy), about 2.3× the cleanest month (December, 31 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorUnhealthyPoorModerateJun 2370 µg/m³Dec 2031 µg/m³
PM2.5 (µg/m³)Level
Jan32Moderate
Feb34Moderate
Mar41Poor
Apr48Poor
May62Unhealthy
Jun71Unhealthy
Jul70Unhealthy
Aug60Unhealthy
Sep53Poor
Oct39Poor
Nov32Moderate
Dec31Moderate
Location & terrain

Where is Agua Rasa?

Agua Rasa sits at 23.6°S, 46.6°W, 777 m above sea level, in Brazil. The nearest listed city is Mooca, 3.0 km away.

Topography around Agua Rasa

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

Within 3 km, the terrain around Agua Rasa has only modest variations in elevation — a maximum elevation change of 83 m around an average of 764 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 371 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,708 m.

The land around Agua Rasa is covered by artificial surfaces (94%) within 3 km, artificial surfaces (85%) within 16 km, and trees (55%) within 80 km.

3 km
83 m
16 km
371 m
80 km
1,708 m
treesgrasslandcroplandartificial surfaceswatermangroves
September weather nearby: Mooca 3.0 km · Vila Formosa 3.0 km · Vila Prudente 3.0 km · Tatuapé 3.0 km · Carrao 4.0 km · Belem 4.0 km · Sao Lucas 4.0 km · Cambuci 5.0 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 Agua Rasa (-23.5668°, -46.5719°, elevation 777 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).