Rio Verde weather in September

In September, Rio Verde sees average daytime highs of 32°C and overnight lows near 19°C, with 53 mm of rain across 7.7 wet days and about 11.9 hours of daylight. It is the 1st-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 51% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 36 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Rio Verde's 4th-clearest and 2nd-windiest month. For the whole year in context, see Rio Verde's year-round climate.

Daytime high
32°
1st warmest
Overnight low
19°
6th coldest
Rainfall
53 mm
7.7 wet days
Daylight
11 h 54 min
7:21 AM – 7:15 PM
Cloud cover
43%
4th clearest
Wind
9 km/h
2nd windiest
Solar energy
5.9 kWh/m²
Travel score
4.6
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical September day in Rio Verde reaches about 32°C in the afternoon and slips back to 19°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 35°C. Set against its neighbours, September runs about 2°C warmer than August and on par with October.

15°20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13118
23118
33118
43119
53119
63219
73219
83219
93219
103219
113219
123219
133219
143219
153219
163219
173220
183220
193220
203220
213220
223120
233120
243120
253120
263120
273120
283120
293120
303120

Rio Verde weather by month

How September compares with the rest of the year at a glance. September is the 1st-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 21°23624.712.93.7
Feb29° / 20°20422.112.63.7
Mar29° / 20°20923.912.13.7
Apr29° / 19°891311.65.2
May28° / 17°264.211.27.3
Jun28° / 16°91.2118.1
Jul28° / 16°40.7118.0
Aug30° / 17°111.811.46.4
Sep32° / 19°537.711.94.6
Oct31° / 20°14217.712.43.8
Nov29° / 20°21123.112.83.6
Dec29° / 20°23826.1133.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 51% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 32%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17822
27822
37723
47723
57723
67624
77624
87525
97525
107426
117426
127228
137228
147129
157030
166931
176832
186832
196634
206535
216535
226337
236238
246139
255941
265842
275842
285743
295644
305545

Chance of precipitation in September

Any precipitation

Rio Verde gets around 53 mm of rain over 7.7 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 26% and peaks near 47% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
111
211
311
412
512
613
714
814
915
1016
1117
1219
1320
1421
1523
1624
1726
1828
1929
2031
2133
2235
2337
2439
2541
2642
2744
2845
2946
3047

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 42% of days. Sticky, muggy-or-worse air turns up on roughly 14% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
16519133
26419143
36419143
46219154
56219154
66019165
75919166
85720176
95620177
105521177
115321188
125122189
1349231910
1446232011
1544242111
1642242112
1740252213
1837252314
1935252415
2033252517
2131252618
2229252720
2327242721
2425232823
2524222925
2622212927
2721203029
2820193031
2919183033
3018183034

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 36 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 30 minutes over September. Sunrise moves from 7:34 AM to 7:09 AM, and sunset from 7:13 PM to 7:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.67:347:13
211.77:337:13
311.77:327:13
411.77:327:13
511.77:317:13
611.77:307:14
711.77:297:14
811.87:287:14
911.87:277:14
1011.87:267:14
1111.87:257:14
1211.87:257:14
1311.87:247:15
1411.97:237:15
1511.97:227:15
1611.97:217:15
1711.97:207:15
1811.97:197:15
1912.07:187:15
2012.07:177:16
2112.07:177:16
2212.07:167:16
2312.07:157:16
2412.07:147:16
2512.17:137:16
2612.17:127:17
2712.17:117:17
2812.17:107:17
2912.17:107:17
3012.17:097:17

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.9 kWh/m².

For context, solar energy here swings from a low near 4.35 kWh/m² to a high of 6.1 kWh/m² in October across the year — September's 5.9 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.8Bright
45.8Bright
55.8Bright
65.8Bright
75.8Bright
85.8Bright
95.8Bright
105.8Bright
115.9Bright
125.9Bright
135.9Bright
145.9Bright
155.9Bright
165.9Bright
175.9Bright
185.9Bright
195.9Bright
205.9Bright
215.9Bright
225.9Bright
236.0Bright
246.0Bright
256.0Bright
266.0Bright
276.0Intense
286.0Intense
296.0Intense
306.0Intense
Planning a trip in September

Hazard calendar for Rio Verde

In seasonPeak

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

Rio Verde's monsoon runs October–March, 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 Rio Verde?

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

4.6
Sightseeing
6th-best month of the year
7.1
Beach & pool
5th-best month of the year

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

What to pack for Rio Verde in September

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

In September, Rio Verde sees daytime highs around 32°C and nights near 19°C. Pack light clothes. Worth having: sun protection. About 8 days see rain.

light clothessun protection

UV index in Rio Verde 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 Rio Verde peaks around January 23 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 highExtremeJan 23UV 15Jun 21UV 7
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar14Extreme
Apr12Extreme
May9Very high
Jun7Very high
Jul8Very high
Aug9Very high
Sep12Extreme
Oct12Extreme
Nov13Extreme
Dec14Extreme

Air quality in Rio Verde 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 Rio Verde is worst in September — around 37 µg/m³ PM2.5 (poor), about 6.9× the cleanest month (July, 5 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1634 µg/m³Jul 95 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb8Good
Mar7Good
Apr6Good
May6Good
Jun5Good
Jul5Good
Aug12Moderate
Sep37Poor
Oct13Moderate
Nov5Good
Dec6Good
Location & terrain

Where is Rio Verde?

Rio Verde sits at 17.8°S, 50.9°W, 721 m above sea level, in Brazil. The nearest listed city is Santa Helena de Goiás, 35 km away.

Topography around Rio Verde

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

Within 3 km, the terrain around Rio Verde has only modest variations in elevation — a maximum elevation change of 133 m around an average of 729 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 271 m; within 80 km, significant variations in elevation — a maximum elevation change of 556 m.

The land around Rio Verde is covered by artificial surfaces (68%) within 3 km, cropland (67%) and trees (21%) within 16 km, and cropland (69%) and trees (20%) within 80 km.

3 km
133 m
16 km
271 m
80 km
556 m
treesgrasslandcroplandartificial surfaces
September weather nearby: Santa Helena de Goiás 35 km · Acreúna 74 km · Jataí 84 km · Quirinópolis 88 km · Indiara 124 km · Caiapônia 132 km · Bom Jesus de Goiás 135 km · São Simão 139 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 Rio Verde (-17.7981°, -50.9281°, elevation 721 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. 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).