Umm Hājar weather in August

In August, Umm Hājar sees average daytime highs of 32°C and overnight lows near 23°C, with 217 mm of rain across 23.6 wet days and about 12.4 hours of daylight. It is the 12th-warmest and 1st-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 8% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 12 h 36 min at the start of August to 12 h 18 min by month's end. Set against the rest of the year, August is Umm Hājar's 12th-clearest and 11th-windiest month. For the whole year in context, see Umm Hājar's year-round climate.

Daytime high
32°
12th warmest
Overnight low
23°
6th coldest
Rainfall
217 mm
23.6 wet days
Daylight
12 h 24 min
5:32 AM – 5:59 PM
Cloud cover
72%
12th clearest
Wind
8 km/h
11th windiest
Solar energy
5.4 kWh/m²
Travel score
2.8
out of 10

Umm Hājar is place in Batha, Chad.

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

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

A typical August day in Umm Hājar reaches about 32°C in the afternoon and slips back to 23°C overnight — a 8°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 3°C cooler than July and about 3°C cooler than September.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13224
23224
33224
43224
53224
63224
73224
83223
93223
103223
113223
123223
133223
143223
153223
163223
173223
183223
193223
203223
213223
223223
233223
243223
253223
263223
273223
283223
293223
303223
313223

How August really feels in Umm Hājar

Once humidity and wind are folded in, August averages 31 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
31
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.

Umm Hājar weather by month

How August compares with the rest of the year at a glance. August is the 12th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 17°0011.34.4
Feb36° / 20°0011.62.6
Mar39° / 23°0011.90.5
Apr41° / 26°2112.30.0
May41° / 28°103.112.60.0
Jun39° / 27°24712.80.5
Jul35° / 25°11718.212.72.0
Aug32° / 23°21723.612.42.8
Sep34° / 24°6710.912.12.7
Oct38° / 24°82.311.71.4
Nov37° / 22°0011.42.2
Dec34° / 18°0011.23.9

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 8% of the time in August, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 21% of August, with mostly cloudy or overcast conditions the remaining 71%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13070
23070
32971
42872
52872
62773
72674
82674
92674
102674
112674
122773
132773
142773
152773
162872
172872
182872
192872
202971
212971
222971
232971
242971
253169
263169
273169
283268
293367
303466
313664

Chance of precipitation in August

Any precipitation

Umm Hājar gets around 217 mm of rain over 23.6 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 75% and peaks near 80% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
174
275
376
477
578
678
779
880
980
1080
1180
1280
1379
1479
1578
1678
1777
1876
1976
2075
2174
2273
2372
2472
2571
2670
2769
2868
2967
3066
3165

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the oppressive band about 96% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
17930
26940
35941
44951
54951
63961
73961
82962
92962
102962
112962
121963
131963
141963
151963
161963
171963
181963
191963
201963
210973
220973
230973
240973
250973
260973
270973
280982
290982
300982
310982

Wind in August

Winds average 8 km/h in August.

Across August, daily wind ranges from about 7 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
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 12 h 36 min at the start of August to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over August. Sunrise moves from 5:29 AM to 5:33 AM, and sunset from 6:05 PM to 5:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:296:05
212.65:306:05
312.65:306:04
412.65:306:04
512.65:306:04
612.55:306:03
712.55:316:03
812.55:316:03
912.55:316:02
1012.55:316:02
1112.55:316:01
1212.55:316:01
1312.55:326:00
1412.55:326:00
1512.55:325:59
1612.45:325:59
1712.45:325:58
1812.45:325:58
1912.45:325:57
2012.45:325:56
2112.45:325:56
2212.45:335:55
2312.45:335:55
2412.45:335:54
2512.35:335:53
2612.35:335:53
2712.35:335:52
2812.35:335:51
2912.35:335:51
3012.35:335:50
3112.35:335:49

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.4 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 5.4 kWh/m² to a high of 7.36 kWh/m² in April across the year — August's 5.4 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.4Bright
115.4Bright
125.4Bright
135.4Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.4Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.7Bright
315.7Bright
Planning a trip in August

Hazard calendar for Umm Hājar

In seasonPeak

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

Umm Hājar sees seasonal dust haze (March–October), heaviest in April.

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

Is August a good time to visit Umm Hājar?

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

2.8
Sightseeing
3rd-best month of the year
4.5
Beach & pool
7th-best month of the year

August is a weaker month for outdoor sightseeing in Umm Hājar.

What to pack for Umm Hājar in August

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

In August, Umm Hājar sees daytime highs around 32°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 24 days see rain.

light clothesrain gearsun protection

UV index in Umm Hājar in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Umm Hājar peaks around August 16 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeExtremeVery highAug 16UV 13Dec 16UV 8
UV index (midday)Level
Jan9Very high
Feb12Extreme
Mar11Extreme
Apr10Extreme
May10Very high
Jun11Extreme
Jul11Extreme
Aug13Extreme
Sep11Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in Umm Hājar 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 Umm Hājar is worst in March — around 71 µg/m³ PM2.5 (unhealthy), about 3.4× the cleanest month (September, 21 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorModerateMar 1768 µg/m³Sep 1021 µg/m³
PM2.5 (µg/m³)Level
Jan45Poor
Feb53Poor
Mar71Unhealthy
Apr53Poor
May38Poor
Jun37Poor
Jul30Moderate
Aug21Moderate
Sep21Moderate
Oct28Moderate
Nov26Moderate
Dec35Moderate
Location & terrain

Where is Umm Hājar?

Umm Hājar sits at 13.3°N, 19.7°E, 397 m above sea level, in Chad. The nearest listed city is Mangalmé, 105 km away.

MangalméAbéchéAtiMongoBiltineBitkineGoz BeidaAm Timan

Topography around Umm Hājar

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

Within 3 km, the terrain around Umm Hājar has only modest variations in elevation — a maximum elevation change of 11 m around an average of 390 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 43 m; within 80 km, significant variations in elevation — a maximum elevation change of 295 m.

The land around Umm Hājar is covered by grassland (78%) within 3 km, grassland (91%) within 16 km, and grassland (92%) within 80 km.

3 km
11 m
16 km
43 m
80 km
295 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
August weather nearby: Mangalmé 105 km · Abéché 136 km · Ati 147 km · Mongo 165 km · Biltine 191 km · Bitkine 217 km · Goz Beida 221 km · Am Timan 258 km

Chad travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type C / D / E / F
220 V · 50 Hz
Prices
≈ 35% of US
price level, 2025
GDP per capita
$1,022
2025
Happiness
4.4 / 10
World Happiness, 2025
Safe drinking water
6%
of population, 2024
Road deaths
32.4
per 100k/yr, 2019
Income group
Low
World Bank
Religion
Muslim 52%Protestant 24%Roman Catholic 20%none 3%

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 Umm Hājar (13.2954°, 19.6966°, elevation 397 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).