Birni N Konni weather in September

In September, Birni N Konni sees average daytime highs of 34°C and overnight lows near 25°C, with 47 mm of rain across 8.1 wet days and about 12.1 hours of daylight. It is the 8th-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 33°C in the first days to 36°C by the end. The sky is clear or mostly clear about 40% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 18 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Birni N Konni's 10th-clearest and 11th-windiest month. For the whole year in context, see Birni N Konni's year-round climate.

Daytime high
34°
8th warmest
Overnight low
25°
8th coldest
Rainfall
47 mm
8.1 wet days
Daylight
12 h 06 min
6:31 AM – 6:36 PM
Cloud cover
50%
10th clearest
Wind
9 km/h
11th windiest
Solar energy
6.24 kWh/m²
Travel score
3.1
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 33°C in the first days to 36°C by the end.

A typical September day in Birni N Konni reaches about 34°C in the afternoon and slips back to 25°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 37°C. Set against its neighbours, September runs about 2°C warmer than August and about 3°C cooler than October.

20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13224
23224
33324
43324
53324
63324
73324
83325
93325
103325
113325
123425
133425
143425
153425
163425
173425
183425
193525
203525
213525
223525
233525
243525
253525
263525
273625
283625
293625
303625

How September really feels in Birni N Konni

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
12 feel dangerously hot (≥ 39°C)
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.

Birni N Konni weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 17°0011.35.8
Feb35° / 20°00.111.53.6
Mar38° / 24°0011.91.0
Apr41° / 27°20.412.30.0
May40° / 29°143.112.60.2
Jun37° / 28°276.812.81.5
Jul34° / 26°6911.912.72.9
Aug32° / 24°12915.112.53.5
Sep34° / 25°478.112.13.1
Oct37° / 24°92.111.72.0
Nov36° / 21°0011.42.9
Dec32° / 18°0011.25.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 23% of September, with mostly cloudy or overcast conditions the remaining 38%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14258
24258
34555
44654
54753
64951
75149
85248
95347
105545
115743
125941
136040
146238
156436
166535
176733
186832
197030
207129
217129
227327
237426
247525
257525
267624
277723
287723
297723
307624

Chance of precipitation in September

Any precipitation

Birni N Konni gets around 47 mm of rain over 8.1 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 28% and peaks near 43% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
143
242
341
440
539
638
737
836
934
1033
1132
1231
1330
1429
1528
1627
1726
1825
1924
2023
2122
2221
2320
2419
2518
2617
2716
2815
2915
3014

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 85% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10001972
20001972
30001972
40001972
50002962
60002962
70003952
80003952
90004942
100005932
110006922
120007912
130008902
140009901
1500010891
1600011881
1700012871
1800014851
1900015841
2000017821
2100118801
2200120790
2300121780
2410123750
2511125720
2611227690
2711228680
2821330640
2921331630
3022433590

Wind in September

Winds average 9 km/h in September.

Across September, 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.

051015151015202530
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

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 18 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 24 minutes over September. Sunrise moves from 6:31 AM to 6:32 AM, and sunset from 6:47 PM to 6:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:316:47
212.36:316:46
312.26:316:45
412.26:316:45
512.26:316:44
612.26:316:43
712.26:316:42
812.26:316:42
912.26:316:41
1012.26:316:40
1112.16:316:39
1212.16:316:39
1312.16:316:38
1412.16:316:37
1512.16:316:36
1612.16:316:36
1712.16:316:35
1812.06:316:34
1912.06:316:33
2012.06:316:33
2112.06:316:32
2212.06:316:31
2312.06:316:30
2412.06:316:29
2512.06:316:29
2611.96:316:28
2711.96:316:27
2811.96:316:27
2911.96:326:26
3011.96:326:25

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.24 kWh/m².

For context, solar energy here swings from a low near 5.49 kWh/m² to a high of 7.2 kWh/m² in April across the year — September's 6.24 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.9Bright
45.9Bright
56.0Bright
66.0Bright
76.0Intense
86.0Intense
96.1Intense
106.1Intense
116.1Intense
126.2Intense
136.2Intense
146.2Intense
156.2Intense
166.3Intense
176.3Intense
186.3Intense
196.3Intense
206.3Intense
216.3Intense
226.3Intense
236.4Intense
246.4Intense
256.4Intense
266.4Intense
276.4Intense
286.4Intense
296.4Intense
306.4Intense
Planning a trip in September

Hazard calendar for Birni N Konni

In seasonPeak

In September, Birni N Konni sits inside its dust season. The full year is below, with each hazard's peak months called out.

Birni N Konni sees dust haze year-round, heaviest in April.

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

Is September a good time to visit Birni N Konni?

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

3.1
Sightseeing
5th-best month of the year
6.0
Beach & pool
5th-best month of the year

September is a weaker month for outdoor sightseeing in Birni N Konni. The water and warmth also suit a beach or pool day.

What to pack for Birni N Konni in September

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

In September, Birni N Konni sees daytime highs around 34°C and nights near 25°C. Pack light clothes and sun protection. Worth having: rain gear. About 8 days see rain.

light clothessun protectionrain gear

UV index in Birni N Konni 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 Birni N Konni peaks around August 15 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highAug 15UV 13Dec 16UV 7
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar10Extreme
Apr11Extreme
May11Extreme
Jun11Extreme
Jul12Extreme
Aug13Extreme
Sep11Extreme
Oct10Extreme
Nov9Very high
Dec7High

Air quality in Birni N Konni 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 Birni N Konni is worst in February — around 101 µg/m³ PM2.5 (unhealthy), about 4.9× the cleanest month (August, 21 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyFeb 15100 µg/m³Aug 1521 µg/m³
PM2.5 (µg/m³)Level
Jan93Unhealthy
Feb101Unhealthy
Mar93Unhealthy
Apr74Unhealthy
May49Poor
Jun38Poor
Jul25Moderate
Aug21Moderate
Sep27Moderate
Oct49Poor
Nov62Unhealthy
Dec86Unhealthy
Location & terrain

Where is Birni N Konni?

Birni N Konni sits at 13.8°N, 5.3°E, 272 m above sea level, in Niger. The nearest listed city is Illela, 9.0 km away.

TahouaDogondoutchiArgungu

Topography around Birni N Konni

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

Within 3 km, the terrain around Birni N Konni has only modest variations in elevation — a maximum elevation change of 20 m around an average of 268 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 144 m; within 80 km, significant variations in elevation — a maximum elevation change of 276 m.

The land around Birni N Konni is covered by grassland (37%), cropland (34%) and artificial surfaces (22%) within 3 km, cropland (63%) and grassland (25%) within 16 km, and grassland (47%) and cropland (38%) within 80 km.

3 km
20 m
16 km
144 m
80 km
276 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Illela 9.0 km · Gwadabawa 49 km · Illéla 74 km · Sokoto 82 km · Madaoua 83 km · Tahoua 122 km · Dogondoutchi 133 km · Argungu 141 km

Niger travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type A / B / C / D / E / F
220 V · 50 Hz
Prices
≈ 36% of US
price level, 2025
GDP per capita
$775
2025
Happiness
4.9 / 10
World Happiness, 2025
Homicide rate
4.4
per 100k, 2012
Road deaths
25.5
per 100k/yr, 2019
Income group
Low
World Bank
Religion
Muslim 96%ethnic religionist 4%Christian 0%agnostics and other 0%

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 Birni N Konni (13.796°, 5.2503°, elevation 272 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).