Nguigmi weather in September

In September, Nguigmi sees average daytime highs of 37°C and overnight lows near 25°C, with 21 mm of rain across 4.6 wet days and about 12.1 hours of daylight. It is the 5th-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 35°C in the first days to 38°C by the end. The sky is clear or mostly clear about 52% 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 Nguigmi's 10th-clearest and 12th-windiest month. For the whole year in context, see Nguigmi's year-round climate.

Daytime high
37°
5th warmest
Overnight low
25°
8th coldest
Rainfall
21 mm
4.6 wet days
Daylight
12 h 06 min
6:00 AM – 6:04 PM
Cloud cover
42%
10th clearest
Wind
10 km/h
12th windiest
Solar energy
6.61 kWh/m²
Travel score
1.8
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 35°C in the first days to 38°C by the end.

A typical September day in Nguigmi reaches about 37°C in the afternoon and slips back to 25°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 34°C and 39°C. Set against its neighbours, September runs about 3°C warmer than August and on par with October.

20°25°30°35°40°45°151015202530
Avg high (°C)Avg low (°C)
13525
23525
33525
43625
53625
63625
73625
83625
93625
103625
113625
123725
133725
143725
153725
163725
173725
183725
193825
203825
213825
223825
233825
243825
253824
263824
273824
283824
293824
303824

How September really feels in Nguigmi

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
5 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.

Nguigmi weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 13°0011.37.9
Feb32° / 16°0011.55.6
Mar36° / 20°00.111.92.6
Apr40° / 24°10.112.30.3
May41° / 26°3112.70.0
Jun40° / 27°72.212.80.3
Jul37° / 26°377.912.81.8
Aug34° / 25°7610.612.52.7
Sep37° / 25°214.612.11.8
Oct37° / 23°30.911.71.7
Nov33° / 18°0011.34.3
Dec29° / 14°0011.27.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 52% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 21% of September, with mostly cloudy or overcast conditions the remaining 27%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15545
25644
35842
46040
56139
66337
76436
86535
96733
106832
117030
127129
137228
147327
157426
167525
177723
187723
197822
207921
217921
228020
238020
248119
258119
268218
278218
288317
298317
308317

Chance of precipitation in September

Any precipitation

Nguigmi gets around 21 mm of rain over 4.6 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 16% and peaks near 28% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
128
227
327
426
525
624
723
822
921
1021
1120
1219
1318
1418
1517
1616
1715
1814
1913
2012
2111
2210
239
248
257
267
276
286
295
305

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 33% of days. Sticky, muggy-or-worse air turns up on roughly 63% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
11152667
21152766
32262862
42272960
53273058
63383155
74383253
85493250
95493349
1064103346
1185103444
1295113441
13106113439
14116123436
15137133433
16158133430
17169143328
18189153225
192110153222
202311163120
212511163018
222712172915
232912172813
243112172811
253413172710
26361317268
27381317257
28401317246
29421317235
30441317225

Wind in September

Winds average 10 km/h in September, the calmest month.

Across September, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2811calm
2911calm
3011calm

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 5:59 AM to 6:00 AM, and sunset from 6:16 PM to 5:54 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:596:16
212.35:596:15
312.35:596:14
412.25:596:13
512.25:596:13
612.25:596:12
712.25:596:11
812.25:596:10
912.25:596:10
1012.25:596:09
1112.15:596:08
1212.15:596:07
1312.15:596:07
1412.15:596:06
1512.15:596:05
1612.16:006:04
1712.16:006:03
1812.16:006:03
1912.06:006:02
2012.06:006:01
2112.06:006:00
2212.06:006:00
2312.06:005:59
2412.06:005:58
2512.06:005:57
2611.96:005:56
2711.96:005:56
2811.96:005:55
2911.96:005:54
3011.96:005:54

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.61 kWh/m².

For context, solar energy here swings from a low near 5.83 kWh/m² to a high of 7.59 kWh/m² in April across the year — September's 6.61 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.4Intense
26.5Intense
36.5Intense
46.5Intense
56.5Intense
66.5Intense
76.5Intense
86.5Intense
96.5Intense
106.5Intense
116.6Intense
126.6Intense
136.6Intense
146.6Intense
156.6Intense
166.6Intense
176.6Intense
186.6Intense
196.7Intense
206.7Intense
216.7Intense
226.7Intense
236.7Intense
246.7Intense
256.7Intense
266.7Intense
276.7Intense
286.7Intense
296.7Intense
306.6Intense
Planning a trip in September

Hazard calendar for Nguigmi

In seasonPeak

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

Nguigmi 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 Nguigmi?

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

1.8
Sightseeing
7th-best month of the year
4.9
Beach & pool
8th-best month of the year

September is a weaker month for outdoor sightseeing in Nguigmi.

What to pack for Nguigmi in September

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

In September, Nguigmi sees daytime highs around 37°C and nights near 25°C. Pack light clothes and sun protection. About 5 days see rain.

light clothessun protection

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

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highAug 16UV 13Dec 16UV 7
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar13Extreme
Apr11Extreme
May10Extreme
Jun11Extreme
Jul11Extreme
Aug13Extreme
Sep11Extreme
Oct10Very high
Nov9Very high
Dec7High

Air quality in Nguigmi 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 Nguigmi is worst in February — around 133 µg/m³ PM2.5 (unhealthy), about 5.2× the cleanest month (August, 26 µg/m³).

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

0306090120150JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModerateUnhealthyFeb 11132 µg/m³Aug 2026 µg/m³
PM2.5 (µg/m³)Level
Jan128Unhealthy
Feb133Unhealthy
Mar116Unhealthy
Apr88Unhealthy
May60Unhealthy
Jun50Poor
Jul34Moderate
Aug26Moderate
Sep29Moderate
Oct64Unhealthy
Nov83Unhealthy
Dec123Unhealthy
Location & terrain

Where is Nguigmi?

Nguigmi sits at 14.2°N, 13.1°E, 287 m above sea level, in Niger. The nearest listed city is Diffa, 117 km away.

DiffaKukawaMaïné SoroaMongunoBolGeidamMarteBlangwa

Topography around Nguigmi

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

Within 3 km, the terrain around Nguigmi has only modest variations in elevation — a maximum elevation change of 25 m around an average of 287 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 70 m; within 80 km, only modest variations in elevation — a maximum elevation change of 114 m.

The land around Nguigmi is covered by bare terrain (80%) within 3 km, bare terrain (49%) and grassland (47%) within 16 km, and grassland (57%) and bare terrain (28%) within 80 km.

3 km
25 m
16 km
70 m
80 km
114 m
treesshrubsgrasslandartificial surfacesbare terrainwaterwetland
September weather nearby: Diffa 117 km · Kukawa 155 km · Maïné Soroa 165 km · Monguno 184 km · Bol 194 km · Geidam 198 km · Marte 224 km · Blangwa 226 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 Nguigmi (14.2495°, 13.1092°, elevation 287 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).