Yei weather in August

In August, Yei sees average daytime highs of 27°C and overnight lows near 19°C, with 199 mm of rain across 26.9 wet days and about 12.1 hours of daylight. It is the 11th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 9% of the time in August, and the air most often feels muggy.

Daylight stretches from about 12 h 12 min at the start of August to 12 h 06 min by month's end. Set against the rest of the year, August is Yei's 8th-clearest and 11th-windiest month. For the whole year in context, see Yei's year-round climate.

Daytime high: 27°; 11th warmest
Overnight low: 19°; 1st coldest
Rainfall: 199 mm; 26.9 wet days
Daylight: 12 h 06 min; 6:57 AM – 7:05 PM
Cloud cover: 69%; 8th clearest
Wind: 5 km/h; 11th windiest
Solar energy: 5.26 kWh/m²
Travel score: 4.0; out of 10

Yei is City in South Sudan.

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

← July Yei year-round climate September →Best places to visit in August

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical August day in Yei reaches about 27°C in the afternoon and slips back to 19°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 29°C. Set against its neighbours, August runs on par with July and on par with September.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	28	28	28	28	28	28	28	28	28	28
Avg low (°C)	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19

	Avg high (°C)	Avg low (°C)
1	27	19
2	27	19
3	27	19
4	27	19
5	27	19
6	27	19
7	27	19
8	27	19
9	27	19
10	27	19
11	27	19
12	27	19
13	27	19
14	27	19
15	27	19
16	27	19
17	27	19
18	27	19
19	27	19
20	27	19
21	27	19
22	28	19
23	28	19
24	28	19
25	28	19
26	28	19
27	28	19
28	28	19
29	28	19
30	28	19
31	28	19

How August really feels in Yei

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

heat index over the day's high

Days feeling ≤ 0°C

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.

Yei weather by month

How August compares with the rest of the year at a glance. August is the 11th-warmest and 2nd-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	33° / 21°	10	2	11.8	4.5
Feb	34° / 22°	15	3.5	11.9	3.7
Mar	33° / 22°	67	12.1	12	3.4
Apr	30° / 21°	146	19.7	12.1	3.5
May	29° / 20°	155	21.6	12.2	4.0
Jun	28° / 19°	143	21.8	12.2	4.4
Jul	27° / 19°	183	24.6	12.2	4.3
Aug	27° / 19°	199	26.9	12.1	4.0
Sep	28° / 19°	178	24.4	12	4.1
Oct	28° / 19°	225	25.9	11.9	3.8
Nov	29° / 20°	123	16	11.8	4.6
Dec	31° / 20°	21	4	11.8	5.3

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 24% of August, with mostly cloudy or overcast conditions the remaining 67%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	28	28	29	29	30	31	31	31	32	33	33	34	34	35	35	35	35	35	35	35	35	35	34	34	33	33	33	33	33	33	34
Cloudier (%)	72	72	71	71	70	69	69	69	68	67	67	66	66	65	65	65	65	65	65	65	65	65	66	66	67	67	67	67	67	67	66

	Clearer (%)	Cloudier (%)
1	28	72
2	28	72
3	29	71
4	29	71
5	30	70
6	31	69
7	31	69
8	31	69
9	32	68
10	33	67
11	33	67
12	34	66
13	34	66
14	35	65
15	35	65
16	35	65
17	35	65
18	35	65
19	35	65
20	35	65
21	35	65
22	35	65
23	34	66
24	34	66
25	33	67
26	33	67
27	33	67
28	33	67
29	33	67
30	33	67
31	34	66

Chance of precipitation in August

Any precipitation

Yei gets around 199 mm of rain over 26.9 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 87% and peaks near 88% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	87	88	88	88	88	88	88	88	88	88	87	87	87	87	86	86	86	86	86	86	86	86	86	86	86	86	86	86	86	86	86

	Rain chance (%)
1	87
2	88
3	88
4	88
5	88
6	88
7	88
8	88
9	88
10	88
11	87
12	87
13	87
14	87
15	86
16	86
17	86
18	86
19	86
20	86
21	86
22	86
23	86
24	86
25	86
26	86
27	86
28	86
29	86
30	86
31	86

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the muggy band about 97% of days. Sticky, muggy-or-worse air turns up on roughly 97% of them.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Humid (%)	5	5	5	4	4	4	4	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3
Muggy (%)	95	95	95	96	96	96	96	97	97	97	97	97	97	97	97	97	97	97	97	97	97	97	97	97	97	97	97	97	97	97	97

	Humid (%)	Muggy (%)
1	5	95
2	5	95
3	5	95
4	4	96
5	4	96
6	4	96
7	4	96
8	3	97
9	3	97
10	3	97
11	3	97
12	3	97
13	3	97
14	3	97
15	3	97
16	3	97
17	3	97
18	3	97
19	3	97
20	3	97
21	3	97
22	3	97
23	3	97
24	3	97
25	3	97
26	3	97
27	3	97
28	3	97
29	3	97
30	3	97
31	3	97

Wind in August

Winds average 5 km/h in August.

Across August, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	5	calm
2	5	calm
3	5	calm
4	5	calm
5	5	calm
6	5	calm
7	5	calm
8	5	calm
9	5	calm
10	5	calm
11	5	calm
12	5	calm
13	5	calm
14	5	calm
15	5	calm
16	5	calm
17	5	calm
18	5	calm
19	5	calm
20	5	calm
21	5	calm
22	5	calm
23	5	calm
24	5	calm
25	5	calm
26	5	calm
27	5	calm
28	5	calm
29	5	calm
30	5	calm
31	5	calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 12 h 12 min at the start of August to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over August. Sunrise moves from 6:58 AM to 6:55 AM, and sunset from 7:09 PM to 7:00 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1
Sunrise (AM)	6:58	6:58	6:58	6:58	6:58	6:58	6:58	6:58	6:58	6:58	6:58	6:58	6:58	6:58	6:57	6:57	6:57	6:57	6:57	6:57	6:57	6:57	6:56	6:56	6:56	6:56	6:56	6:55	6:55	6:55	6:55
Sunset (PM)	7:09	7:09	7:08	7:08	7:08	7:08	7:08	7:08	7:07	7:07	7:07	7:07	7:06	7:06	7:06	7:05	7:05	7:05	7:04	7:04	7:04	7:03	7:03	7:03	7:02	7:02	7:01	7:01	7:01	7:00	7:00

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.2	6:58	7:09
2	12.2	6:58	7:09
3	12.2	6:58	7:08
4	12.2	6:58	7:08
5	12.2	6:58	7:08
6	12.2	6:58	7:08
7	12.2	6:58	7:08
8	12.2	6:58	7:08
9	12.2	6:58	7:07
10	12.2	6:58	7:07
11	12.2	6:58	7:07
12	12.1	6:58	7:07
13	12.1	6:58	7:06
14	12.1	6:58	7:06
15	12.1	6:57	7:06
16	12.1	6:57	7:05
17	12.1	6:57	7:05
18	12.1	6:57	7:05
19	12.1	6:57	7:04
20	12.1	6:57	7:04
21	12.1	6:57	7:04
22	12.1	6:57	7:03
23	12.1	6:56	7:03
24	12.1	6:56	7:03
25	12.1	6:56	7:02
26	12.1	6:56	7:02
27	12.1	6:56	7:01
28	12.1	6:55	7:01
29	12.1	6:55	7:01
30	12.1	6:55	7:00
31	12.1	6:55	7:00

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.26 kWh/m².

For context, solar energy here swings from a low near 5 kWh/m² to a high of 6.1 kWh/m² in February across the year — August's 5.26 kWh/m² sits near the bottom.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	5.0	5.0	5.0	5.1	5.1	5.1	5.1	5.1	5.2	5.2	5.2	5.2	5.2	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.4	5.4	5.4	5.4	5.4	5.4	5.4	5.4	5.4	5.4
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	5.0	Bright
2	5.0	Bright
3	5.0	Bright
4	5.1	Bright
5	5.1	Bright
6	5.1	Bright
7	5.1	Bright
8	5.1	Bright
9	5.2	Bright
10	5.2	Bright
11	5.2	Bright
12	5.2	Bright
13	5.2	Bright
14	5.3	Bright
15	5.3	Bright
16	5.3	Bright
17	5.3	Bright
18	5.3	Bright
19	5.3	Bright
20	5.3	Bright
21	5.3	Bright
22	5.4	Bright
23	5.4	Bright
24	5.4	Bright
25	5.4	Bright
26	5.4	Bright
27	5.4	Bright
28	5.4	Bright
29	5.4	Bright
30	5.4	Bright
31	5.4	Bright

Planning a trip in August

Hazard calendar for Yei

In seasonPeak

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

Yei's rainy season runs April–November, 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 Yei?

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

4.0

Sightseeing

7th-best month of the year

4.1

Beach & pool

12th-best month of the year

August is a reasonable time to visit Yei for sightseeing.

What to pack for Yei in August

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

In August, Yei sees daytime highs around 27°C and nights near 19°C. Pack light clothes and rain gear. Worth having: sun protection. About 27 days see rain.

light clothesrain gearsun protection

UV index in Yei in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Yei peaks around March 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 10 (extreme).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	11	14	15	14	12	10	11	12	13	13	10	10
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high

	UV index (midday)	Level
Jan	11	Extreme
Feb	14	Extreme
Mar	15	Extreme
Apr	14	Extreme
May	12	Extreme
Jun	10	Extreme
Jul	11	Extreme
Aug	12	Extreme
Sep	13	Extreme
Oct	13	Extreme
Nov	10	Extreme
Dec	10	Very high

Air quality in Yei 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 Yei is worst in January — around 101 µg/m³ PM2.5 (unhealthy), about 7.6× the cleanest month (October, 13 µg/m³).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	101	55	27	15	14	21	22	17	14	13	18	49
Level	Unhealthy	Poor	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Poor

	PM2.5 (µg/m³)	Level
Jan	101	Unhealthy
Feb	55	Poor
Mar	27	Moderate
Apr	15	Moderate
May	14	Moderate
Jun	21	Moderate
Jul	22	Moderate
Aug	17	Moderate
Sep	14	Moderate
Oct	13	Moderate
Nov	18	Moderate
Dec	49	Poor

Location & terrain

Where is Yei?

Yei sits at 4.1°N, 30.7°E, 836 m above sea level, in South Sudan. The nearest listed city is Koboko, 82 km away.

Topography around Yei

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

Within 3 km, the terrain around Yei has only modest variations in elevation — a maximum elevation change of 62 m around an average of 824 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 156 m; within 80 km, large variations in elevation — a maximum elevation change of 1,060 m.

The land around Yei is covered by shrubs (46%) and trees (21%) within 3 km, shrubs (51%) and grassland (34%) within 16 km, and shrubs (50%) and trees (34%) within 80 km.

3 km

62 m

shrubs 46%

16 km

156 m

shrubs 51%

80 km

1,060 m

shrubs 50%

treesshrubsgrasslandcroplandartificial surfaces

← July Yei year-round climate September →Best places to visit in August

August weather nearby: Koboko 82 km · Yumbe 94 km · Arua 122 km · Moyo 126 km · Juba 131 km · Aru 138 km · Adjumani 147 km · Watsa 173 km

South Sudan travel facts

Travel advisory: Level 4; Do Not Travel
Prices: ≈ 6% of US; price level, 2021
GDP per capita: $1,080; 2015
Happiness: 2.8 / 10; World Happiness, 2019
Homicide rate: 14; per 100k, 2012
Road deaths: 36.7; per 100k/yr, 2019
Income group: Low; World Bank
Religion

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 Yei (4.0944°, 30.6764°, elevation 836 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).

	Avg high (°C)	Avg low (°C)
1	27	19
2	27	19
3	27	19
4	27	19
5	27	19
6	27	19
7	27	19
8	27	19
9	27	19
10	27	19
11	27	19
12	27	19
13	27	19
14	27	19
15	27	19
16	27	19
17	27	19
18	27	19
19	27	19
20	27	19
21	27	19
22	28	19
23	28	19
24	28	19
25	28	19
26	28	19
27	28	19
28	28	19
29	28	19
30	28	19
31	28	19

	Clearer (%)	Cloudier (%)
1	28	72
2	28	72
3	29	71
4	29	71
5	30	70
6	31	69
7	31	69
8	31	69
9	32	68
10	33	67
11	33	67
12	34	66
13	34	66
14	35	65
15	35	65
16	35	65
17	35	65
18	35	65
19	35	65
20	35	65
21	35	65
22	35	65
23	34	66
24	34	66
25	33	67
26	33	67
27	33	67
28	33	67
29	33	67
30	33	67
31	34	66

	Rain chance (%)
1	87
2	88
3	88
4	88
5	88
6	88
7	88
8	88
9	88
10	88
11	87
12	87
13	87
14	87
15	86
16	86
17	86
18	86
19	86
20	86
21	86
22	86
23	86
24	86
25	86
26	86
27	86
28	86
29	86
30	86
31	86

	Humid (%)	Muggy (%)
1	5	95
2	5	95
3	5	95
4	4	96
5	4	96
6	4	96
7	4	96
8	3	97
9	3	97
10	3	97
11	3	97
12	3	97
13	3	97
14	3	97
15	3	97
16	3	97
17	3	97
18	3	97
19	3	97
20	3	97
21	3	97
22	3	97
23	3	97
24	3	97
25	3	97
26	3	97
27	3	97
28	3	97
29	3	97
30	3	97
31	3	97

	Avg high (°C)	Avg low (°C)
1	27	19
2	27	19
3	27	19
4	27	19
5	27	19
6	27	19
7	27	19
8	27	19
9	27	19
10	27	19
11	27	19
12	27	19
13	27	19
14	27	19
15	27	19
16	27	19
17	27	19
18	27	19
19	27	19
20	27	19
21	27	19
22	28	19
23	28	19
24	28	19
25	28	19
26	28	19
27	28	19
28	28	19
29	28	19
30	28	19
31	28	19

	Clearer (%)	Cloudier (%)
1	28	72
2	28	72
3	29	71
4	29	71
5	30	70
6	31	69
7	31	69
8	31	69
9	32	68
10	33	67
11	33	67
12	34	66
13	34	66
14	35	65
15	35	65
16	35	65
17	35	65
18	35	65
19	35	65
20	35	65
21	35	65
22	35	65
23	34	66
24	34	66
25	33	67
26	33	67
27	33	67
28	33	67
29	33	67
30	33	67
31	34	66

	Rain chance (%)
1	87
2	88
3	88
4	88
5	88
6	88
7	88
8	88
9	88
10	88
11	87
12	87
13	87
14	87
15	86
16	86
17	86
18	86
19	86
20	86
21	86
22	86
23	86
24	86
25	86
26	86
27	86
28	86
29	86
30	86
31	86

	Humid (%)	Muggy (%)
1	5	95
2	5	95
3	5	95
4	4	96
5	4	96
6	4	96
7	4	96
8	3	97
9	3	97
10	3	97
11	3	97
12	3	97
13	3	97
14	3	97
15	3	97
16	3	97
17	3	97
18	3	97
19	3	97
20	3	97
21	3	97
22	3	97
23	3	97
24	3	97
25	3	97
26	3	97
27	3	97
28	3	97
29	3	97
30	3	97
31	3	97

	Avg high (°C)	Avg low (°C)
1	27	19
2	27	19
3	27	19
4	27	19
5	27	19
6	27	19
7	27	19
8	27	19
9	27	19
10	27	19
11	27	19
12	27	19
13	27	19
14	27	19
15	27	19
16	27	19
17	27	19
18	27	19
19	27	19
20	27	19
21	27	19
22	28	19
23	28	19
24	28	19
25	28	19
26	28	19
27	28	19
28	28	19
29	28	19
30	28	19
31	28	19

	Clearer (%)	Cloudier (%)
1	28	72
2	28	72
3	29	71
4	29	71
5	30	70
6	31	69
7	31	69
8	31	69
9	32	68
10	33	67
11	33	67
12	34	66
13	34	66
14	35	65
15	35	65
16	35	65
17	35	65
18	35	65
19	35	65
20	35	65
21	35	65
22	35	65
23	34	66
24	34	66
25	33	67
26	33	67
27	33	67
28	33	67
29	33	67
30	33	67
31	34	66

	Rain chance (%)
1	87
2	88
3	88
4	88
5	88
6	88
7	88
8	88
9	88
10	88
11	87
12	87
13	87
14	87
15	86
16	86
17	86
18	86
19	86
20	86
21	86
22	86
23	86
24	86
25	86
26	86
27	86
28	86
29	86
30	86
31	86

	Humid (%)	Muggy (%)
1	5	95
2	5	95
3	5	95
4	4	96
5	4	96
6	4	96
7	4	96
8	3	97
9	3	97
10	3	97
11	3	97
12	3	97
13	3	97
14	3	97
15	3	97
16	3	97
17	3	97
18	3	97
19	3	97
20	3	97
21	3	97
22	3	97
23	3	97
24	3	97
25	3	97
26	3	97
27	3	97
28	3	97
29	3	97
30	3	97
31	3	97