Colorado weather in August

In August, Colorado sees average daytime highs of 28°C and overnight lows near 16°C, with 44 mm of rain across 4.3 wet days and about 11.2 hours of daylight. It is the 9th-warmest and 11th-wettest month of the year here.

Highs climb over the month, from about 26°C in the first days to 29°C by the end. The sky is clear or mostly clear about 63% of the time in August, and the air most often feels dry.

Daylight stretches from about 10 h 54 min at the start of August to 11 h 30 min by month's end. Set against the rest of the year, August is Colorado's 1st-clearest and 2nd-windiest month. For the whole year in context, see Colorado's year-round climate.

Daytime high
28°
9th warmest
Overnight low
16°
3rd coldest
Rainfall
44 mm
4.3 wet days
Daylight
11 h 12 min
7:56 AM – 7:08 PM
Cloud cover
34%
1st clearest
Wind
11 km/h
2nd windiest
Solar energy
4.69 kWh/m²
Travel score
7.5
out of 10

Colorado 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 26°C in the first days to 29°C by the end.

A typical August day in Colorado reaches about 28°C in the afternoon and slips back to 16°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 32°C. Set against its neighbours, August runs about 2°C warmer than July and about 2°C cooler than September.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12615
22615
32615
42715
52715
62716
72716
82716
92716
102716
112716
122716
132716
142716
152716
162816
172816
182816
192816
202816
212816
222816
232817
242817
252817
262917
272917
282917
292917
302917
312917

How August really feels in Colorado

Once humidity and wind are folded in, August 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

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Colorado weather by month

How August compares with the rest of the year at a glance. August is the 9th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 22°19519.113.23.5
Feb31° / 22°14716.912.83.6
Mar31° / 22°10513.212.24.4
Apr29° / 20°63711.55.9
May26° / 17°807.110.97.3
Jun25° / 15°616.110.67.8
Jul25° / 15°434.810.78.0
Aug28° / 16°444.311.27.5
Sep29° / 18°91811.95.9
Oct30° / 20°12711.812.54.7
Nov31° / 21°12412.313.14.3
Dec31° / 22°15216.713.43.8

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 63% 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 27%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17129
27129
37030
47129
57129
67129
77129
87030
97030
107030
117030
127030
137030
147030
157030
167129
177129
187228
197327
207327
217426
227525
237525
247624
257723
267822
277822
287822
297822
307822
317723

Chance of precipitation in August

Any precipitation

Colorado gets around 44 mm of rain over 4.3 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 14% and peaks near 18% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
114
214
314
414
514
613
713
813
913
1013
1113
1213
1313
1413
1514
1614
1714
1814
1914
2014
2115
2215
2315
2415
2515
2615
2716
2816
2917
3017
3118

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 40% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13645172
23645172
33645172
43744162
53744163
63843163
73942163
83941163
94041163
104140163
114139163
124239163
134238163
144238163
154338163
164337173
174337173
184337173
194337183
204337183
214237183
224237183
234137183
244138183
254038183
264038183
273938194
283938194
293838194
303838195
313738195

Wind in August

Winds average 11 km/h in August.

Across August, daily wind ranges from about 11 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
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
3111calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 10 h 54 min at the start of August to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over August. Sunrise moves from 8:06 AM to 7:42 AM, and sunset from 7:02 PM to 7:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.98:067:02
211.08:057:02
311.08:057:03
411.08:047:03
511.08:047:04
611.08:037:04
711.08:027:05
811.18:027:05
911.18:017:05
1011.18:007:06
1111.18:007:06
1211.17:597:07
1311.17:587:07
1411.27:577:07
1511.27:577:08
1611.27:567:08
1711.27:557:09
1811.27:547:09
1911.37:537:09
2011.37:537:10
2111.37:527:10
2211.37:517:10
2311.37:507:11
2411.47:497:11
2511.47:487:11
2611.47:477:12
2711.47:467:12
2811.57:457:12
2911.57:447:13
3011.57:437:13
3111.57:427:13

Solar energy in August

Daily solar energy (kWh/m²)

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

For context, solar energy here swings from a low near 3.47 kWh/m² to a high of 6.23 kWh/m² in November across the year — August's 4.69 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.2Bright
24.2Bright
34.3Bright
44.3Bright
54.3Bright
64.3Bright
74.4Bright
84.4Bright
94.5Bright
104.5Bright
114.5Bright
124.6Bright
134.6Bright
144.6Bright
154.7Bright
164.7Bright
174.7Bright
184.8Bright
194.8Bright
204.8Bright
214.9Bright
224.9Bright
234.9Bright
245.0Bright
255.0Bright
265.0Bright
275.1Bright
285.1Bright
295.1Bright
305.1Bright
315.1Bright
Planning a trip in August

Hazard calendar for Colorado

In seasonPeak

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

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

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

Is August a good time to visit Colorado?

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

7.5
Sightseeing
3rd-best month of the year
8.0
Beach & pool
1st-best month of the year

August is one of the better times to visit Colorado for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Colorado in August

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

In August, Colorado sees daytime highs around 28°C and nights near 16°C. Pack light clothes. Worth having: sun protection. About 4 days see rain.

light clothessun protection

UV index in Colorado in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Colorado peaks around January 20 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 13 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighExtremeJan 20UV 15Sep 13UV 5
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug7High
Sep4Moderate
Oct11Extreme
Nov13Extreme
Dec13Extreme

Air quality in Colorado 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 Colorado is worst in September — around 20 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (December, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1620 µg/m³Dec 147 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb8Good
Mar8Good
Apr9Good
May10Good
Jun10Good
Jul10Good
Aug14Moderate
Sep20Moderate
Oct14Moderate
Nov7Good
Dec7Good
Location & terrain

Where is Colorado?

Colorado sits at 22.8°S, 52.0°W, 444 m above sea level, in Brazil. The nearest listed city is Teodoro Sampaio, 39 km away.

Topography around Colorado

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

Within 3 km, the terrain around Colorado has only modest variations in elevation — a maximum elevation change of 139 m around an average of 421 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 235 m; within 80 km, significant variations in elevation — a maximum elevation change of 551 m.

The land around Colorado is covered by grassland (38%) and cropland (38%) within 3 km, cropland (62%) and grassland (25%) within 16 km, and cropland (57%) and grassland (26%) within 80 km.

3 km
139 m
16 km
235 m
80 km
551 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Teodoro Sampaio 39 km · Nova Esperança 45 km · Astorga 54 km · Jaguapitã 55 km · Paranavaí 57 km · Mandaguaçu 58 km · Mirante do Paranapanema 61 km · Maringá 65 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 Colorado (-22.8375°, -51.9731°, elevation 444 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).