Tillabéri weather in September

In September, Tillabéri sees average daytime highs of 36°C and overnight lows near 26°C, with 31 mm of rain across 6.7 wet days and about 12.1 hours of daylight. It is the 7th-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 34°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 Tillabéri's 10th-clearest and 11th-windiest month. For the whole year in context, see Tillabéri's year-round climate.

Daytime high
36°
7th warmest
Overnight low
26°
8th coldest
Rainfall
31 mm
6.7 wet days
Daylight
12 h 06 min
6:46 AM – 6:51 PM
Cloud cover
44%
10th clearest
Wind
12 km/h
11th windiest
Solar energy
6.43 kWh/m²
Travel score
2.2
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 34°C in the first days to 38°C by the end.

A typical September day in Tillabéri reaches about 36°C in the afternoon and slips back to 26°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 33°C and 39°C. Set against its neighbours, September runs about 3°C warmer than August and about 2°C cooler than October.

20°25°30°35°40°45°151015202530
Avg high (°C)Avg low (°C)
13425
23425
33425
43425
53425
63525
73525
83525
93525
103526
113526
123526
133626
143626
153626
163626
173626
183626
193626
203726
213726
223726
233726
243726
253726
263726
273826
283826
293826
303826

How September really feels in Tillabéri

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
25 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.

Tillabéri weather by month

How September compares with the rest of the year at a glance. September is the 7th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 17°0011.35.7
Feb35° / 20°0011.53.6
Mar38° / 23°10.211.91.1
Apr41° / 27°10.312.30.0
May41° / 29°51.512.60.0
Jun39° / 28°154.412.80.8
Jul35° / 26°5310.512.82.3
Aug33° / 25°11013.912.53.0
Sep36° / 26°316.712.12.2
Oct38° / 25°51.611.71.2
Nov36° / 21°0011.32.4
Dec33° / 18°0011.24.9

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 19% of September, with mostly cloudy or overcast conditions the remaining 28%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15545
25644
35743
45842
55941
66139
76238
86337
96535
106634
116733
126832
137030
147129
157228
167426
177525
187624
197723
207921
218020
228020
238119
248218
258317
268317
278317
288317
298317
308317

Chance of precipitation in September

Any precipitation

Tillabéri gets around 31 mm of rain over 6.7 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 24% and peaks near 37% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
137
236
335
434
532
631
730
829
928
1028
1127
1226
1325
1424
1524
1623
1722
1821
1921
2020
2119
2218
2317
2417
2516
2615
2714
2814
2913
3012

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 54% of days. Sticky, muggy-or-worse air turns up on roughly 93% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
100010864
200011854
300013834
400014833
500016813
600018793
700020773
800122752
900124732
1000126712
1100128692
1200231661
1300233641
1400335611
1500337591
1600440551
1700542530
1800644490
1900746460
2000848430
2101950400
22011052370
23111153340
24111255310
25111456280
26121556260
27221657230
28221857210
29231957190
30332156170

Wind in September

Winds average 12 km/h in September.

Across September, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
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 6:46 AM to 6:47 AM, and sunset from 7:02 PM to 6:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:467:02
212.36:467:02
312.36:467:01
412.26:467:00
512.26:466:59
612.26:466:59
712.26:466:58
812.26:466:57
912.26:466:56
1012.26:466:56
1112.16:466:55
1212.16:466:54
1312.16:466:53
1412.16:466:52
1512.16:466:52
1612.16:466:51
1712.16:466:50
1812.16:466:49
1912.06:466:49
2012.06:466:48
2112.06:466:47
2212.06:466:46
2312.06:466:45
2412.06:466:45
2512.06:476:44
2611.96:476:43
2711.96:476:42
2811.96:476:42
2911.96:476:41
3011.96:476:40

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.43 kWh/m².

For context, solar energy here swings from a low near 5.59 kWh/m² to a high of 7.16 kWh/m² in April across the year — September's 6.43 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.3Intense
46.3Intense
56.3Intense
66.3Intense
76.4Intense
86.4Intense
96.4Intense
106.4Intense
116.4Intense
126.4Intense
136.4Intense
146.4Intense
156.5Intense
166.5Intense
176.5Intense
186.5Intense
196.5Intense
206.5Intense
216.5Intense
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 Tillabéri

In seasonPeak

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

Tillabéri sees dust haze year-round, heaviest in March.

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

Is September a good time to visit Tillabéri?

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

2.2
Sightseeing
7th-best month of the year
5.3
Beach & pool
6th-best month of the year

September is a weaker month for outdoor sightseeing in Tillabéri.

What to pack for Tillabéri in September

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

In September, Tillabéri sees daytime highs around 36°C and nights near 26°C. Pack light clothes and sun protection. About 7 days see rain.

light clothessun protection

UV index in Tillabéri 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 Tillabéri peaks around August 20 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeExtremeVery highAug 20UV 13Dec 15UV 8
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar13Extreme
Apr10Very high
May10Extreme
Jun10Extreme
Jul9Very high
Aug13Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in Tillabéri 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 Tillabéri is worst in February — around 94 µg/m³ PM2.5 (unhealthy), about 5.1× the cleanest month (August, 18 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyFeb 1993 µg/m³Aug 1619 µg/m³
PM2.5 (µg/m³)Level
Jan85Unhealthy
Feb94Unhealthy
Mar91Unhealthy
Apr69Unhealthy
May48Poor
Jun36Poor
Jul23Moderate
Aug18Moderate
Sep23Moderate
Oct44Poor
Nov56Unhealthy
Dec74Unhealthy
Location & terrain

Where is Tillabéri?

Tillabéri sits at 14.2°N, 1.5°E, 215 m above sea level, in Niger. The nearest listed city is Méhana, 40 km away.

NiameyTorodiYouri KourtéréKolloSay

Topography around Tillabéri

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

Within 3 km, the terrain around Tillabéri has only modest variations in elevation — a maximum elevation change of 53 m around an average of 205 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 99 m; within 80 km, only modest variations in elevation — a maximum elevation change of 184 m.

The land around Tillabéri is covered by grassland (37%) and cropland (25%) within 3 km, grassland (69%) within 16 km, and grassland (73%) and bare terrain (21%) within 80 km.

3 km
53 m
16 km
99 m
80 km
184 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Méhana 40 km · Téra 79 km · Ayorou 82 km · Niamey 105 km · Torodi 127 km · Youri Kourtéré 129 km · Kollo 139 km · Say 158 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 Tillabéri (14.2071°, 1.4542°, elevation 215 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).