Jiayuguan weather in August

In August, Jiayuguan sees average daytime highs of 25°C and overnight lows near 14°C, with 27 mm of rain across 5.4 wet days and about 13.6 hours of daylight. It is the 2nd-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 27°C in the first days to 24°C by the end. The sky is clear or mostly clear about 54% of the time in August, and the air most often feels dry.

Daylight stretches from about 14 h 06 min at the start of August to 13 hours by month's end. Set against the rest of the year, August is Jiayuguan's 5th-clearest and 5th-windiest month. For the whole year in context, see Jiayuguan's year-round climate.

Daytime high
25°
2nd warmest
Overnight low
14°
11th coldest
Rainfall
27 mm
5.4 wet days
Daylight
13 h 36 min
6:43 AM – 8:18 PM
Cloud cover
42%
5th clearest
Wind
9 km/h
5th windiest
Solar energy
6.09 kWh/m²
Travel score
7.8
out of 10

Jiayuguan is prefecture-level city in Gansu, China.

Air quality
High
PM2.5 25.9 µg/m³ · 2019
Density
189/km²
people per km²
Founded
1965

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 27°C in the first days to 24°C by the end.

A typical August day in Jiayuguan reaches about 25°C in the afternoon and slips back to 14°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 29°C. Set against its neighbours, August runs about 1°C cooler than July and about 5°C warmer than September.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12716
22716
32716
42716
52616
62616
72615
82615
92615
102615
112615
122615
132515
142514
152514
162514
172514
182514
192514
202514
212514
222414
232413
242413
252413
262413
272413
282413
292413
302313
312312

How August really feels in Jiayuguan

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.

Jiayuguan weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-3° / -13°31.11.79.50.0
Feb / -10°31.11.510.40.0
Mar / -4°102.32.211.71.6
Apr15° / 92.30.8135.7
May21° / 153.90.214.27.4
Jun25° / 14°204.2014.87.8
Jul27° / 16°255.2014.57.5
Aug25° / 14°275.4013.67.8
Sep20° / 183.5012.37.6
Oct14° / 71.80.610.94.9
Nov / -5°51.61.79.80.7
Dec-2° / -11°41.41.89.20.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 54% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 14% of August, with mostly cloudy or overcast conditions the remaining 32%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17228
27228
37129
47129
57030
67030
76931
86832
96733
106733
116634
126634
136535
146535
156535
166634
176634
186634
196733
206733
216832
226832
236931
246832
256931
266931
276931
286931
297030
307030
316931

Chance of precipitation in August

Any precipitation

Jiayuguan gets around 27 mm of rain over 5.4 wet days in August, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 18% and peaks near 22% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
114
214
315
415
516
617
717
818
919
1020
1120
1221
1321
1422
1522
1622
1722
1821
1920
2020
2119
2218
2317
2417
2516
2616
2715
2815
2914
3014
3114

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 95% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1919
2928
3928
4928
5937
6937
7937
8937
9946
10946
11946
12946
13946
14955
15955
16955
17955
18955
19964
20964
21964
22964
23964
24964
25973
26973
27973
28973
29982
30982
31982

Wind in August

Winds average 9 km/h in August.

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 14 h 06 min at the start of August to 13 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over August. Sunrise moves from 6:29 AM to 6:58 AM, and sunset from 8:37 PM to 7:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.16:298:37
214.16:308:36
314.16:318:35
414.06:328:33
514.06:338:32
614.06:348:31
713.96:358:30
813.96:368:29
913.86:378:28
1013.86:388:26
1113.86:398:25
1213.76:408:24
1313.76:418:22
1413.76:428:21
1513.66:438:20
1613.66:438:18
1713.56:448:17
1813.56:458:16
1913.56:468:14
2013.46:478:13
2113.46:488:11
2213.36:498:10
2313.36:508:08
2413.36:518:07
2513.26:528:05
2613.26:538:04
2713.16:548:02
2813.16:558:01
2913.06:567:59
3013.06:577:57
3113.06:587:56

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.09 kWh/m².

For context, solar energy here swings from a low near 2.5 kWh/m² to a high of 6.89 kWh/m² in June across the year — August's 6.09 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.5Intense
46.4Intense
56.4Intense
66.4Intense
76.3Intense
86.3Intense
96.3Intense
106.2Intense
116.2Intense
126.2Intense
136.1Intense
146.1Intense
156.1Intense
166.0Intense
176.0Intense
186.0Bright
196.0Bright
206.0Bright
215.9Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.7Bright
315.7Bright
Planning a trip in August

Hazard calendar for Jiayuguan

In seasonPeak

In August, Jiayuguan sits inside its dust season. The full year is below, with each hazard's peak months called out.

Jiayuguan sees seasonal dust haze (March–October), heaviest in May.

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

Is August a good time to visit Jiayuguan?

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

7.8
Sightseeing
1st-best month of the year
7.0
Beach & pool
2nd-best month of the year

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

What to pack for Jiayuguan in August

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

In August, Jiayuguan sees daytime highs around 25°C and nights near 14°C. Pack sun protection. Worth having: light clothes. About 5 days see rain.

sun protectionlight clothes

UV index in Jiayuguan 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 Jiayuguan peaks around July 14 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highModerateLowJul 14UV 10Jan 10UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr7High
May8Very high
Jun10Very high
Jul11Extreme
Aug9Very high
Sep8Very high
Oct4Moderate
Nov2Moderate
Dec2Low

Air quality in Jiayuguan 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 Jiayuguan is worst in May — around 39 µg/m³ PM2.5 (poor), about 2.6× the cleanest month (December, 15 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Jiayuguan's WHO annual average of 25.9 µg/m³.

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMay 1039 µg/m³Dec 1816 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb20Moderate
Mar37Poor
Apr39Poor
May39Poor
Jun25Moderate
Jul22Moderate
Aug26Moderate
Sep22Moderate
Oct26Moderate
Nov21Moderate
Dec15Moderate
Location & terrain

Where is Jiayuguan?

Jiayuguan sits at 39.8°N, 98.3°E, 1,635 m above sea level, in China. The nearest listed city is Dunhuang, 309 km away.

DunhuangBogdHovdDalandzadgadYinchuanBayanhongorAltaiArvayheer

Topography around Jiayuguan

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

Within 3 km, the terrain around Jiayuguan has only modest variations in elevation — a maximum elevation change of 90 m around an average of 1,636 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 748 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,337 m.

The land around Jiayuguan is covered by artificial surfaces (57%) and bare terrain (32%) within 3 km, bare terrain (75%) within 16 km, and bare terrain (70%) within 80 km.

3 km
90 m
16 km
748 m
80 km
4,337 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainsnow and icewater
August weather nearby: Dunhuang 309 km · Bogd 628 km · Hovd 636 km · Dalandzadgad 659 km · Yinchuan 705 km · Bayanhongor 737 km · Altai 748 km · Arvayheer 805 km

China travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / I
220 V · 50 Hz
Prices
≈ 47% of US
price level, 2025
GDP per capita
$13,862
2025
Happiness
6.1 / 10
World Happiness, 2025
Homicide rate
0.5
per 100k, 2020
Road deaths
17.4
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 464
Religion
unaffiliated 52%folk religion 22%Buddhist 18%Christian 5%

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 Jiayuguan (39.8112°, 98.2862°, elevation 1,635 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).