Er Roseires weather in September

In September, Er Roseires sees average daytime highs of 32°C and overnight lows near 23°C, with 91 mm of rain across 15.5 wet days and about 12.1 hours of daylight. It is the 11th-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 31°C in the first days to 33°C by the end. The sky is clear or mostly clear about 27% 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 Er Roseires's 9th-clearest and 11th-windiest month. For the whole year in context, see Er Roseires's year-round climate.

Daytime high
32°
11th warmest
Overnight low
23°
6th coldest
Rainfall
91 mm
15.5 wet days
Daylight
12 h 06 min
6:35 AM – 6:39 PM
Cloud cover
56%
9th clearest
Wind
8 km/h
11th windiest
Solar energy
5.94 kWh/m²
Travel score
3.3
out of 10

Er Roseires is town in eastern Sudan.

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 31°C in the first days to 33°C by the end.

A typical September day in Er Roseires reaches about 32°C in the afternoon and slips back to 23°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 35°C. Set against its neighbours, September runs about 1°C warmer than August and about 2°C cooler than October.

20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13123
23123
33123
43123
53123
63223
73223
83223
93223
103223
113223
123223
133223
143223
153223
163223
173223
183323
193323
203323
213323
223323
233323
243323
253323
263323
273323
283323
293323
303423

How September really feels in Er Roseires

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.

Er Roseires weather by month

How September compares with the rest of the year at a glance. September is the 11th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan35° / 21°0011.43.2
Feb37° / 22°0011.61.8
Mar40° / 25°20.411.90.3
Apr40° / 27°92.912.30.0
May38° / 27°4710.912.50.9
Jun35° / 25°7215.412.72.1
Jul33° / 24°10219.112.62.9
Aug31° / 23°13621.612.43.3
Sep32° / 23°9115.512.13.3
Oct34° / 24°5713.111.72.7
Nov36° / 23°30.911.52.4
Dec36° / 22°0011.33.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 32% of September, with mostly cloudy or overcast conditions the remaining 42%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14753
24852
35050
45050
55149
65248
75347
85347
95545
105545
115743
125842
135842
145941
156040
166139
176139
186139
196238
206337
216337
226337
236337
246436
256436
266436
276535
286535
296535
306535

Chance of precipitation in September

Any precipitation

Er Roseires gets around 91 mm of rain over 15.5 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 52% and peaks near 65% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
165
264
364
463
563
662
761
860
959
1058
1157
1255
1354
1452
1551
1650
1748
1847
1946
2045
2144
2243
2343
2442
2542
2642
2742
2842
2942
3043

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 67% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)
102773
202773
302773
402773
502773
602773
702773
802674
902674
1002674
1102674
1202674
1302773
1402872
1502872
1603070
1703169
1803268
1913366
2013465
2113663
2213762
2323860
2423959
2524157
2624256
2734354
2834453
2934552
3034552

Wind in September

Winds average 8 km/h in September.

Across September, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

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 6:35 AM to 6:35 AM, and sunset from 6:49 PM to 6:29 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:356:49
212.26:356:48
312.26:356:48
412.26:356:47
512.26:356:46
612.26:356:46
712.26:356:45
812.26:356:44
912.16:356:44
1012.16:356:43
1112.16:356:42
1212.16:356:42
1312.16:356:41
1412.16:356:40
1512.16:356:39
1612.16:356:39
1712.16:356:38
1812.06:356:37
1912.06:356:37
2012.06:356:36
2112.06:356:35
2212.06:356:34
2312.06:356:34
2412.06:356:33
2512.06:356:32
2612.06:356:32
2711.96:356:31
2811.96:356:30
2911.96:356:30
3011.96:356:29

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.94 kWh/m².

For context, solar energy here swings from a low near 5.09 kWh/m² to a high of 7.06 kWh/m² in March across the year — September's 5.94 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.7Bright
55.8Bright
65.8Bright
75.8Bright
85.8Bright
95.8Bright
105.8Bright
115.9Bright
125.9Bright
135.9Bright
145.9Bright
155.9Bright
166.0Bright
176.0Bright
186.0Bright
196.0Intense
206.0Intense
216.0Intense
226.0Intense
236.0Intense
246.0Intense
256.0Intense
266.0Intense
276.0Intense
286.0Intense
296.0Intense
306.0Intense
Planning a trip in September

Hazard calendar for Er Roseires

In seasonPeak

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

Er Roseires's rainy season runs June–September, when most of the year's rain falls.

Er Roseires sees seasonal dust haze (April), heaviest in April.

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

Is September a good time to visit Er Roseires?

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

3.3
Sightseeing
1st-best month of the year
5.5
Beach & pool
5th-best month of the year

September is a weaker month for outdoor sightseeing in Er Roseires.

What to pack for Er Roseires in September

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

In September, Er Roseires sees daytime highs around 32°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.

light clothesrain gearsun protection

UV index in Er Roseires in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Er Roseires peaks around March 19 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 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 highMar 19UV 13Dec 11UV 9
UV index (midday)Level
Jan11Extreme
Feb12Extreme
Mar13Extreme
Apr13Extreme
May10Extreme
Jun11Extreme
Jul10Extreme
Aug13Extreme
Sep11Extreme
Oct11Extreme
Nov9Very high
Dec9Very high

Air quality in Er Roseires 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 Er Roseires is worst in March — around 30 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (August, 14 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 1829 µg/m³Aug 2314 µg/m³
PM2.5 (µg/m³)Level
Jan23Moderate
Feb26Moderate
Mar30Moderate
Apr27Moderate
May15Moderate
Jun19Moderate
Jul18Moderate
Aug14Moderate
Sep14Moderate
Oct16Moderate
Nov17Moderate
Dec17Moderate
Location & terrain

Where is Er Roseires?

Er Roseires sits at 11.9°N, 34.4°E, 472 m above sea level, in Sudan. The nearest listed city is Ad-Damazin, 9.0 km away.

SingaAd-DindarAs SūkīAl ḨawātahUmm ShawkahMaiurnoĀsosa

Topography around Er Roseires

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

Within 3 km, the terrain around Er Roseires has only modest variations in elevation — a maximum elevation change of 41 m around an average of 467 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 83 m; within 80 km, large variations in elevation — a maximum elevation change of 789 m.

The land around Er Roseires is covered by grassland (52%) and cropland (21%) within 3 km, grassland (55%) and cropland (23%) within 16 km, and grassland (54%) and cropland (25%) within 80 km.

3 km
41 m
16 km
83 m
80 km
789 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Ad-Damazin 9.0 km · Singa 151 km · Ad-Dindar 166 km · As Sūkī 170 km · Al Ḩawātah 175 km · Umm Shawkah 175 km · Maiurno 189 km · Āsosa 201 km

Sudan travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type C / D / F / G
230 V · 50 Hz
Prices
≈ 215% of US
price level, 2025
GDP per capita
$1,165
2025
Happiness
4.1 / 10
World Happiness, 2017
Homicide rate
5.1
per 100k, 2008
Road deaths
26.8
per 100k/yr, 2019
Income group
Low
World Bank
English
Very low
EF EPI 421

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 Er Roseires (11.8659°, 34.3869°, elevation 472 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).