Leer weather in September

In September, Leer sees average daytime highs of 31°C and overnight lows near 23°C, with 147 mm of rain across 23 wet days and about 12 hours of daylight. It is the 10th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 18% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 12 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Leer's 7th-clearest and 12th-windiest month. For the whole year in context, see Leer's year-round climate.

Daytime high
31°
10th warmest
Overnight low
23°
2nd coldest
Rainfall
147 mm
23 wet days
Daylight
12 hours
6:52 AM – 6:55 PM
Cloud cover
64%
7th clearest
Wind
5 km/h
12th windiest
Solar energy
5.61 kWh/m²
Travel score
3.1
out of 10

Leer is human settlement in South Sudan.

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical September day in Leer reaches about 31°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 33°C. Set against its neighbours, September runs about 1°C warmer than August and on par with October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13123
23123
33123
43123
53123
63123
73123
83123
93123
103123
113123
123123
133123
143123
153123
163123
173123
183123
193123
203123
213123
223123
233123
243123
253123
263223
273223
283223
293223
303223

How September really feels in Leer

Once humidity and wind are folded in, September 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 September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Leer weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan36° / 23°00.111.62.8
Feb38° / 25°10.411.71.5
Mar39° / 27°122.411.90.9
Apr37° / 27°469.312.21.4
May34° / 26°10017.812.42.3
Jun32° / 24°13420.912.52.9
Jul31° / 23°18725.112.43.1
Aug30° / 23°19525.512.33.1
Sep31° / 23°14723123.1
Oct32° / 23°12120.411.83.1
Nov34° / 23°25511.63.6
Dec35° / 23°10.311.53.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 26% of September, with mostly cloudy or overcast conditions the remaining 56%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13664
23763
33763
43961
54060
64060
74159
84258
94357
104357
114456
124555
134555
144654
154753
164852
174852
184852
194852
204852
214753
224753
234654
244654
254654
264555
274555
284456
294456
304456

Chance of precipitation in September

Any precipitation

Leer gets around 147 mm of rain over 23 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 76% and peaks near 84% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
184
284
384
483
582
682
781
880
979
1078
1177
1276
1375
1475
1574
1674
1773
1873
1973
2073
2173
2273
2373
2473
2573
2673
2773
2873
2973
3072

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 98% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)
1199
2199
3199
4199
5199
6199
7199
8199
9199
10199
11199
12199
13199
14298
15298
16298
17298
18298
19298
20298
21298
22298
23298
24298
25298
26298
27397
28397
29397
30397

Wind in September

Winds average 5 km/h in September, the calmest month.

Across September, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 12 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over September. Sunrise moves from 6:54 AM to 6:51 AM, and sunset from 7:04 PM to 6:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:547:04
212.26:547:03
312.16:547:03
412.16:547:02
512.16:547:02
612.16:547:01
712.16:547:01
812.16:537:00
912.16:536:59
1012.16:536:59
1112.16:536:58
1212.16:536:58
1312.16:536:57
1412.16:536:56
1512.16:536:56
1612.06:526:55
1712.06:526:55
1812.06:526:54
1912.06:526:53
2012.06:526:53
2112.06:526:52
2212.06:526:51
2312.06:516:51
2412.06:516:50
2512.06:516:50
2612.06:516:49
2712.06:516:49
2812.06:516:48
2911.96:516:47
3011.96:516:47

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.61 kWh/m².

For context, solar energy here swings from a low near 4.92 kWh/m² to a high of 6.48 kWh/m² in March across the year — September's 5.61 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.6Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.7Bright
175.7Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
Planning a trip in September

Hazard calendar for Leer

In seasonPeak

In September, Leer sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Leer's monsoon runs May–October, when most of the year's rain falls.

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

Is September a good time to visit Leer?

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

3.1
Sightseeing
3rd-best month of the year
4.6
Beach & pool
8th-best month of the year

September is a weaker month for outdoor sightseeing in Leer.

What to pack for Leer in September

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

In September, Leer sees daytime highs around 31°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 23 days see rain.

light clothesrain gearsun protection

UV index in Leer in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Leer peaks around August 19 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highAug 19UV 13Dec 12UV 9
UV index (midday)Level
Jan10Extreme
Feb10Extreme
Mar13Extreme
Apr13Extreme
May11Extreme
Jun11Extreme
Jul12Extreme
Aug13Extreme
Sep12Extreme
Oct12Extreme
Nov9Very high
Dec9Very high

Air quality in Leer in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Leer is worst in March — around 60 µg/m³ PM2.5 (unhealthy), about 4.9× the cleanest month (August, 12 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorPoorModeratePoorMar 1459 µg/m³Aug 2212 µg/m³
PM2.5 (µg/m³)Level
Jan42Poor
Feb51Poor
Mar60Unhealthy
Apr37Poor
May18Moderate
Jun17Moderate
Jul16Moderate
Aug12Moderate
Sep13Moderate
Oct14Moderate
Nov34Moderate
Dec36Poor
Location & terrain

Where is Leer?

Leer sits at 8.3°N, 30.1°E, 397 m above sea level, in South Sudan. The nearest listed city is Rumbek, 174 km away.

RumbekTonjMalakalGogrialAbyeiKuacjokWauBor

Topography around Leer

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

Within 3 km, the terrain around Leer has only modest variations in elevation — a maximum elevation change of 6 m around an average of 396 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 11 m; within 80 km, only modest variations in elevation — a maximum elevation change of 19 m.

The land around Leer is covered by grassland (93%) within 3 km, grassland (86%) within 16 km, and wetland (61%) and grassland (31%) within 80 km.

3 km
6 m
16 km
11 m
80 km
19 m
treesshrubsgrasslandwaterwetland
September weather nearby: Rumbek 174 km · Tonj 198 km · Malakal 216 km · Gogrial 226 km · Abyei 236 km · Kuacjok 238 km · Wau 246 km · Bor 281 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
Christian 61%folk religion 33%Muslim 6%

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 Leer (8.3031°, 30.1406°, 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).