Santa Helena de Goiás weather in August

In August, Santa Helena de Goiás sees average daytime highs of 32°C and overnight lows near 18°C, with 9 mm of rain across 1.3 wet days and about 11.4 hours of daylight. It is the 3rd-warmest and 10th-wettest month of the year here.

Highs climb over the month, from about 31°C in the first days to 33°C by the end. The sky is clear or mostly clear about 74% of the time in August, and the air most often feels dry.

Daylight stretches from about 11 h 12 min at the start of August to 11 h 36 min by month's end. Set against the rest of the year, August is Santa Helena de Goiás's 1st-clearest and 1st-windiest month. For the whole year in context, see Santa Helena de Goiás's year-round climate.

Daytime high
32°
3rd warmest
Overnight low
18°
3rd coldest
Rainfall
9 mm
1.3 wet days
Daylight
11 h 24 min
7:45 AM – 7:08 PM
Cloud cover
26%
1st clearest
Wind
8 km/h
1st windiest
Solar energy
5.39 kWh/m²
Travel score
5.5
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 31°C in the first days to 33°C by the end.

A typical August day in Santa Helena de Goiás reaches about 32°C in the afternoon and slips back to 18°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 34°C. Set against its neighbours, August runs about 2°C warmer than July and about 2°C cooler than September.

10°20°30°40°151015202531
Avg high (°C)Avg low (°C)
13017
23017
33117
43117
53117
63117
73117
83117
93117
103117
113117
123117
133117
143117
153118
163218
173218
183218
193218
203218
213218
223218
233218
243218
253218
263218
273219
283319
293319
303319
313319

How August really feels in Santa Helena de Goiás

Once humidity and wind are folded in, August averages 9 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
9
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Santa Helena de Goiás weather by month

How August compares with the rest of the year at a glance. August is the 3rd-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 21°22222.712.93.5
Feb30° / 21°17220.712.63.4
Mar30° / 21°16821.112.13.6
Apr30° / 20°7110.711.64.9
May29° / 18°223.711.26.4
Jun29° / 17°71.1117.0
Jul29° / 16°40.6116.9
Aug32° / 18°91.311.45.5
Sep33° / 20°416.111.93.9
Oct33° / 21°11514.912.43.2
Nov31° / 21°18421.912.83.2
Dec30° / 21°22024.4133.2

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 74% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 10% of August, with mostly cloudy or overcast conditions the remaining 16%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18416
28416
38416
48416
58416
68515
78515
88515
98515
108614
118614
128614
138614
148614
158614
168614
178614
188614
198614
208515
218515
228317
238317
248317
258218
268218
278119
288119
298119
308020
318119

Chance of precipitation in August

Any precipitation

Santa Helena de Goiás gets around 9 mm of rain over 1.3 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 5% and peaks near 7% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
13
23
33
43
53
63
73
83
94
104
114
124
134
144
154
165
175
185
195
205
215
225
235
245
255
266
276
286
297
307
317

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the dry band about 74% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1761950
2741961
3751861
4751861
5761761
6761761
7761761
8771661
9771661
10771661
11771661
12771661
13771661
14771571
15771571
16771571
17771571
18771571
19761581
20761581
21751681
22741691
23741691
247217101
257217101
267117111
276918112
286818122
296718123
306619123
316419134

Wind in August

Winds average 8 km/h in August, the windiest month of the year.

Across August, 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.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 11 h 12 min at the start of August to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over August. Sunrise moves from 7:53 AM to 7:34 AM, and sunset from 7:04 PM to 7:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.27:537:04
211.27:527:04
311.27:527:05
411.27:517:05
511.27:517:05
611.37:507:06
711.37:507:06
811.37:497:06
911.37:497:06
1011.37:487:07
1111.37:487:07
1211.37:477:07
1311.37:477:08
1411.47:467:08
1511.47:457:08
1611.47:457:08
1711.47:447:09
1811.47:437:09
1911.47:437:09
2011.57:427:09
2111.57:417:09
2211.57:417:10
2311.57:407:10
2411.57:397:10
2511.57:387:10
2611.57:387:10
2711.67:377:11
2811.67:367:11
2911.67:357:11
3011.67:347:11
3111.67:347:11

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.39 kWh/m².

For context, solar energy here swings from a low near 4.35 kWh/m² to a high of 6.16 kWh/m² in October across the year — August's 5.39 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.1Bright
45.1Bright
55.1Bright
65.2Bright
75.2Bright
85.2Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.7Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in August

Hazard calendar for Santa Helena de Goiás

In seasonPeak

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

Santa Helena de Goiás'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 August a good time to visit Santa Helena de Goiás?

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

5.5
Sightseeing
4th-best month of the year
8.4
Beach & pool
3rd-best month of the year

August is a reasonable time to visit Santa Helena de Goiás for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Santa Helena de Goiás in August

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

In August, Santa Helena de Goiás sees daytime highs around 32°C and nights near 18°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Santa Helena de Goiás in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Santa Helena de Goiás peaks around January 24 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 24UV 15Jun 21UV 7
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar14Extreme
Apr11Extreme
May9Very high
Jun7Very high
Jul8Very high
Aug9Very high
Sep11Extreme
Oct12Extreme
Nov13Extreme
Dec14Extreme

Air quality in Santa Helena de Goiás in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Santa Helena de Goiás is worst in September — around 43 µg/m³ PM2.5 (poor), about 7.7× the cleanest month (November, 6 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodSep 1640 µg/m³Nov 226 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar8Good
Apr7Good
May7Good
Jun6Good
Jul8Good
Aug17Moderate
Sep43Poor
Oct15Moderate
Nov6Good
Dec7Good
Location & terrain

Where is Santa Helena de Goiás?

Santa Helena de Goiás sits at 17.8°S, 50.6°W, 566 m above sea level, in Brazil. The nearest listed city is Rio Verde, 35 km away.

Topography around Santa Helena de Goiás

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Santa Helena de Goiás.

Within 3 km, the terrain around Santa Helena de Goiás has only modest variations in elevation — a maximum elevation change of 127 m around an average of 579 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 250 m; within 80 km, significant variations in elevation — a maximum elevation change of 523 m.

The land around Santa Helena de Goiás is covered by cropland (54%) and artificial surfaces (26%) within 3 km, cropland (82%) within 16 km, and cropland (71%) within 80 km.

3 km
127 m
16 km
250 m
80 km
523 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Rio Verde 35 km · Acreúna 52 km · Quirinópolis 72 km · Indiara 99 km · Bom Jesus de Goiás 102 km · Jataí 119 km · Santa Vitória 125 km · Pontalina 126 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 Santa Helena de Goiás (-17.8136°, -50.5969°, elevation 566 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).