Goiás weather in August

In August, Goiás sees average daytime highs of 33°C and overnight lows near 20°C, with 5 mm of rain across 0.9 wet days and about 11.5 hours of daylight. It is the 2nd-warmest and 10th-wettest month of the year here.

Highs climb over the month, from about 32°C in the first days to 34°C by the end. The sky is clear or mostly clear about 69% of the time in August, and the air most often feels dry.

Daylight stretches from about 11 h 18 min at the start of August to 11 h 42 min by month's end. Set against the rest of the year, August is Goiás's 2nd-clearest and 1st-windiest month. For the whole year in context, see Goiás's year-round climate.

Daytime high
33°
2nd warmest
Overnight low
20°
4th coldest
Rainfall
5 mm
0.9 wet days
Daylight
11 h 30 min
7:41 AM – 7:08 PM
Cloud cover
29%
2nd clearest
Wind
9 km/h
1st windiest
Solar energy
5.48 kWh/m²
Travel score
4.5
out of 10

Goiás is human settlement in Brazil.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 32°C in the first days to 34°C by the end.

A typical August day in Goiás reaches about 33°C in the afternoon and slips back to 20°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 35°C. Set against its neighbours, August runs about 2°C warmer than July and about 1°C cooler than September.

15°20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13219
23219
33219
43219
53219
63219
73220
83320
93320
103320
113320
123320
133320
143320
153320
163320
173320
183320
193320
203321
213321
223321
233421
243421
253421
263421
273421
283421
293421
303421
313422

How August really feels in Goiás

Once humidity and wind are folded in, August averages 30 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
30
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.

Goiás weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 21°27825.112.83.4
Feb30° / 21°2172312.53.3
Mar30° / 21°21624.312.13.4
Apr31° / 21°9513.711.74.3
May31° / 20°132.511.35.6
Jun31° / 19°30.711.16.1
Jul31° / 19°10.211.15.9
Aug33° / 20°50.911.54.5
Sep34° / 22°275.411.93.3
Oct33° / 22°11616.612.43.0
Nov30° / 22°20423.412.73.2
Dec29° / 21°27425.612.93.3

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 69% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 15% of August, with mostly cloudy or overcast conditions the remaining 16%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18317
28416
38416
48416
58515
68515
78515
88614
98713
108713
118713
128713
138713
148713
158713
168713
178614
188515
198515
208515
218317
228317
238317
248317
258218
268218
278218
288119
298119
308020
318020

Chance of precipitation in August

Any precipitation

Goiás gets around 5 mm of rain over 0.9 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 3% and peaks near 6% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
11
21
31
41
51
61
71
81
91
102
112
122
132
143
153
163
173
184
194
204
214
224
234
245
255
265
275
285
296
306
316

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 77% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1801730
2811630
3811630
4811630
5811630
6801640
7801640
8811540
9811540
10811540
11801550
12801550
13811450
14801451
15801451
16791461
17791461
18791461
19791461
20781471
21771571
22761581
23751681
24741691
257316101
267217101
277117111
286918121
296818122
306718132
316618142

Wind in August

Winds average 9 km/h in August, the windiest month of the year.

Across August, daily wind ranges from about 9 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
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 11 h 18 min at the start of August to 11 h 42 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 7:48 AM to 7:30 AM, and sunset from 7:05 PM to 7:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.37:487:05
211.37:487:05
311.37:477:06
411.37:477:06
511.37:477:06
611.37:467:06
711.37:467:07
811.47:457:07
911.47:457:07
1011.47:447:07
1111.47:447:07
1211.47:437:08
1311.47:437:08
1411.47:427:08
1511.47:417:08
1611.57:417:08
1711.57:407:09
1811.57:407:09
1911.57:397:09
2011.57:387:09
2111.57:387:09
2211.57:377:10
2311.67:367:10
2411.67:367:10
2511.67:357:10
2611.67:347:10
2711.67:337:10
2811.67:337:10
2911.67:327:10
3011.77:317:11
3111.77:307:11

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.48 kWh/m².

For context, solar energy here swings from a low near 4.56 kWh/m² to a high of 6.09 kWh/m² in October across the year — August's 5.48 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.4Bright
105.4Bright
115.4Bright
125.4Bright
135.5Bright
145.5Bright
155.5Bright
165.5Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.8Bright
315.8Bright
Planning a trip in August

Hazard calendar for Goiás

In seasonPeak

None of 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.

Goiás's monsoon runs November–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 Goiás?

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

4.5
Sightseeing
4th-best month of the year
8.0
Beach & pool
4th-best month of the year

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

What to pack for Goiás in August

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

In August, Goiás sees daytime highs around 33°C and nights near 20°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Goiás in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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 Goiás peaks around January 23 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 8 (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 22UV 8
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar14Extreme
Apr12Extreme
May9Very high
Jun8Very high
Jul8Very high
Aug10Very high
Sep12Extreme
Oct13Extreme
Nov13Extreme
Dec14Extreme

Air quality in 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 Goiás is worst in September — around 22 µg/m³ PM2.5 (moderate), about 4.9× the cleanest month (July, 4 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1820 µg/m³Jul 115 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb8Good
Mar8Good
Apr7Good
May6Good
Jun5Good
Jul4Good
Aug8Good
Sep22Moderate
Oct14Moderate
Nov7Good
Dec7Good
Location & terrain

Where is Goiás?

Goiás sits at 15.9°S, 50.1°W, 496 m above sea level, in Brazil. The nearest listed city is Itaberaí, 37 km away.

Topography around Goiás

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

Within 3 km, the terrain around Goiás has significant variations in elevation — a maximum elevation change of 402 m around an average of 556 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 676 m; within 80 km, large variations in elevation — a maximum elevation change of 858 m.

The land around Goiás is covered by trees (69%) within 3 km, trees (48%) and grassland (41%) within 16 km, and grassland (50%), trees (25%) and cropland (23%) within 80 km.

3 km
402 m
16 km
676 m
80 km
858 m
treesshrubsgrasslandcroplandartificial surfaces
August weather nearby: Itaberaí 37 km · Itapuranga 46 km · Anicuns 62 km · São Luís de Montes Belos 70 km · Jussara 78 km · Inhumas 83 km · Jaraguá 88 km · Ceres 91 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 Goiás (-15.9344°, -50.1403°, elevation 496 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).