Geidam weather in September

In September, Geidam sees average daytime highs of 35°C and overnight lows near 24°C, with 42 mm of rain across 8 wet days and about 12.1 hours of daylight. It is the 6th-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 36% 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 Geidam's 10th-clearest and 12th-windiest month. For the whole year in context, see Geidam's year-round climate.

Daytime high
35°
6th warmest
Overnight low
24°
8th coldest
Rainfall
42 mm
8 wet days
Daylight
12 h 06 min
6:04 AM – 6:09 PM
Cloud cover
53%
10th clearest
Wind
9 km/h
12th windiest
Solar energy
6.29 kWh/m²
Travel score
2.8
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 Geidam reaches about 35°C in the afternoon and slips back to 24°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 32°C and 37°C. Set against its neighbours, September runs about 2°C warmer than August and about 2°C cooler than October.

20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13324
23324
33324
43324
53324
63324
73324
83424
93424
103424
113424
123424
133424
143424
153524
163524
173524
183524
193524
203524
213524
223624
233624
243624
253624
263624
273624
283624
293624
303624

How September really feels in Geidam

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
10 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.

Geidam weather by month

How September compares with the rest of the year at a glance. September is the 6th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 15°0011.36.7
Feb33° / 18°0011.64.5
Mar37° / 22°0011.91.7
Apr40° / 26°10.412.30.1
May40° / 27°61.812.60.0
Jun38° / 27°143.812.71.0
Jul35° / 25°6212.212.72.5
Aug32° / 24°12616.612.43.3
Sep35° / 24°42812.12.8
Oct37° / 23°61.911.72.0
Nov34° / 20°0011.43.7
Dec31° / 16°0011.36.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% 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 43%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13862
24060
34159
44357
54357
64555
74654
84852
94951
105149
115347
125347
135545
145743
155743
165941
176040
186139
196238
206436
216436
226634
236733
246832
256931
267129
277129
287228
297327
307327

Chance of precipitation in September

Any precipitation

Geidam gets around 42 mm of rain over 8 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 42% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
142
241
340
439
538
637
736
835
935
1034
1133
1232
1331
1430
1529
1628
1726
1825
1924
2022
2121
2220
2319
2418
2517
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 72% of days. Sticky, muggy-or-worse air turns up on roughly 94% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10003952
20003952
30004942
40004942
50005932
60006922
70007912
80009901
900110881
1000111871
1100113851
1200114841
1300116821
1400217801
1501219771
1601220761
1701322731
1801324711
1911425690
2012527650
2112529630
2222631590
2322732570
2432733550
2543835500
2643936480
27531037450
28641038420
29741138390
30851239360

Wind in September

Winds average 9 km/h in September, the calmest month.

Across September, daily wind ranges from about 8 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
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 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 6:04 AM to 6:05 AM, and sunset from 6:20 PM to 5:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:046:20
212.26:046:19
312.26:046:18
412.26:046:17
512.26:056:17
612.26:056:16
712.26:056:15
812.26:056:15
912.26:056:14
1012.16:056:13
1112.16:056:12
1212.16:056:12
1312.16:056:11
1412.16:056:10
1512.16:046:09
1612.16:046:09
1712.16:046:08
1812.06:046:07
1912.06:046:07
2012.06:046:06
2112.06:046:05
2212.06:046:04
2312.06:046:04
2412.06:056:03
2512.06:056:02
2611.96:056:01
2711.96:056:01
2811.96:056:00
2911.96:055:59
3011.96:055:59

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.29 kWh/m².

For context, solar energy here swings from a low near 5.67 kWh/m² to a high of 7.42 kWh/m² in April across the year — September's 6.29 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.9Bright
26.0Bright
36.0Bright
46.0Intense
56.0Intense
66.1Intense
76.1Intense
86.1Intense
96.2Intense
106.2Intense
116.2Intense
126.2Intense
136.3Intense
146.3Intense
156.3Intense
166.3Intense
176.3Intense
186.4Intense
196.4Intense
206.4Intense
216.4Intense
226.4Intense
236.4Intense
246.4Intense
256.4Intense
266.4Intense
276.4Intense
286.4Intense
296.4Intense
306.4Intense
Planning a trip in September

Hazard calendar for Geidam

In seasonPeak

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

Geidam 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 Geidam?

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

2.8
Sightseeing
6th-best month of the year
5.7
Beach & pool
5th-best month of the year

September is a weaker month for outdoor sightseeing in Geidam.

What to pack for Geidam in September

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

In September, Geidam sees daytime highs around 35°C and nights near 24°C. Pack light clothes and sun protection. Worth having: rain gear. About 8 days see rain.

light clothessun protectionrain gear

UV index in Geidam 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 Geidam peaks around August 18 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 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 highExtremeVery highAug 18UV 12Dec 17UV 7
UV index (midday)Level
Jan8Very high
Feb8Very high
Mar10Extreme
Apr10Very high
May8Very high
Jun9Very high
Jul10Extreme
Aug13Extreme
Sep11Extreme
Oct10Extreme
Nov8Very high
Dec6High

Air quality in Geidam 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 Geidam is worst in February — around 113 µg/m³ PM2.5 (unhealthy), about 4.4× the cleanest month (August, 26 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyFeb 12112 µg/m³Aug 1827 µg/m³
PM2.5 (µg/m³)Level
Jan108Unhealthy
Feb113Unhealthy
Mar102Unhealthy
Apr78Unhealthy
May54Poor
Jun49Poor
Jul32Moderate
Aug26Moderate
Sep30Moderate
Oct54Poor
Nov68Unhealthy
Dec101Unhealthy
Location & terrain

Where is Geidam?

Geidam sits at 12.9°N, 11.9°E, 329 m above sea level, in Nigeria. The nearest listed city is Maïné Soroa, 37 km away.

DiffaGashuaDamaturuMagumeriKumagunnamDauraNguru

Topography around Geidam

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

Within 3 km, the terrain around Geidam has only modest variations in elevation — a maximum elevation change of 17 m around an average of 324 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 47 m; within 80 km, only modest variations in elevation — a maximum elevation change of 57 m.

The land around Geidam is covered by grassland (38%), cropland (38%) and artificial surfaces (20%) within 3 km, cropland (57%) and grassland (39%) within 16 km, and grassland (66%) and cropland (29%) within 80 km.

3 km
17 m
16 km
47 m
80 km
57 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwetland
September weather nearby: Maïné Soroa 37 km · Diffa 88 km · Gashua 96 km · Damaturu 128 km · Magumeri 131 km · Kumagunnam 143 km · Daura 159 km · Nguru 159 km

Nigeria travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type D / G
230 V · 50 Hz
Prices
≈ 13% of US
price level, 2025
GDP per capita
$1,224
2025
Happiness
4.8 / 10
World Happiness, 2025
Safe drinking water
30%
of population, 2024
Homicide rate
15.7
per 100k, 2023
Road deaths
20.7
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
High
EF EPI 569
Religion
Muslim 54%other Christian 35%Roman Catholic 11%other 1%

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 Geidam (12.8944°, 11.9265°, elevation 329 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).