Dosso weather in September

In September, Dosso sees average daytime highs of 33°C and overnight lows near 25°C, with 58 mm of rain across 8.9 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 32°C in the first days to 35°C by the end. The sky is clear or mostly clear about 39% 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 Dosso's 10th-clearest and 11th-windiest month. For the whole year in context, see Dosso's year-round climate.

Daytime high
33°
8th warmest
Overnight low
25°
8th coldest
Rainfall
58 mm
8.9 wet days
Daylight
12 h 06 min
6:39 AM – 6:44 PM
Cloud cover
52%
10th clearest
Wind
9 km/h
11th windiest
Solar energy
6.1 kWh/m²
Travel score
3.4
out of 10

Dosso is urban commune in Niger.

Founded
1750

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 32°C in the first days to 35°C by the end.

A typical September day in Dosso reaches about 33°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 36°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
33224
43224
53224
63224
73224
83224
93224
103224
113324
123324
133324
143325
153325
163325
173325
183325
193425
203425
213425
223425
233425
243425
253425
263525
273525
283525
293525
303525

How September really feels in Dosso

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
8 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.

Dosso 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
Jan32° / 18°0011.35.4
Feb35° / 21°0011.63.3
Mar39° / 24°10.211.90.9
Apr40° / 27°30.812.30.0
May39° / 28°133.412.60.5
Jun36° / 27°297.112.82.0
Jul33° / 25°7612.312.73.2
Aug32° / 24°15617.612.43.4
Sep33° / 25°588.912.13.4
Oct36° / 24°112.711.72.2
Nov36° / 21°0011.42.7
Dec33° / 18°0011.24.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 18% 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 (%)
13763
23862
34060
44060
54258
64456
74456
84654
94753
104852
115050
125149
135347
145347
155545
165743
175941
186040
196238
206337
216535
226733
236931
246931
257129
267228
277327
287426
297426
307426

Chance of precipitation in September

Any precipitation

Dosso gets around 58 mm of rain over 8.9 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 31% and peaks near 50% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
150
248
347
446
545
643
742
840
939
1038
1136
1235
1333
1432
1530
1629
1727
1826
1924
2023
2122
2221
2320
2419
2518
2618
2717
2817
2917
3016

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 88% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
100937
200937
300937
400937
500928
600928
700928
801918
901918
1001909
1101909
1201909
1301909
1402899
1502899
1602899
1702899
1803889
1903889
2004879
2104879
2205869
2306868
2417848
2518847
2619837
27110836
28211816
29212815
30213814

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 6:39 AM to 6:40 AM, and sunset from 6:55 PM to 6:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:396:55
212.26:396:54
312.26:396:53
412.26:396:52
512.26:396:52
612.26:396:51
712.26:396:50
812.26:396:50
912.26:396:49
1012.16:396:48
1112.16:396:47
1212.16:396:47
1312.16:396:46
1412.16:396:45
1512.16:396:44
1612.16:396:44
1712.16:396:43
1812.06:396:42
1912.06:396:41
2012.06:396:41
2112.06:396:40
2212.06:396:39
2312.06:396:38
2412.06:396:38
2512.06:396:37
2611.96:396:36
2711.96:406:36
2811.96:406:35
2911.96:406:34
3011.96:406:33

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.1 kWh/m².

For context, solar energy here swings from a low near 5.39 kWh/m² to a high of 7.04 kWh/m² in April across the year — September's 6.1 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.7Bright
35.7Bright
45.7Bright
55.8Bright
65.8Bright
75.8Bright
85.9Bright
95.9Bright
105.9Bright
116.0Bright
126.0Bright
136.0Intense
146.0Intense
156.1Intense
166.1Intense
176.1Intense
186.2Intense
196.2Intense
206.2Intense
216.2Intense
226.3Intense
236.3Intense
246.3Intense
256.3Intense
266.3Intense
276.3Intense
286.3Intense
296.3Intense
306.3Intense
Planning a trip in September

Hazard calendar for Dosso

In seasonPeak

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

Dosso sees seasonal dust haze (January–July), heaviest in March.

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

Is September a good time to visit Dosso?

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

3.4
Sightseeing
3rd-best month of the year
6.2
Beach & pool
5th-best month of the year

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

What to pack for Dosso in September

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

In September, Dosso sees daytime highs around 33°C and nights near 25°C. Pack light clothes and sun protection. Worth having: rain gear. About 9 days see rain.

light clothessun protectionrain gear

UV index in Dosso 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 Dosso peaks around August 16 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 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 highExtremeVery highAug 16UV 13Dec 14UV 8
UV index (midday)Level
Jan10Very high
Feb11Extreme
Mar13Extreme
Apr11Extreme
May10Extreme
Jun11Extreme
Jul12Extreme
Aug13Extreme
Sep11Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in Dosso 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 Dosso is worst in February — around 91 µg/m³ PM2.5 (unhealthy), about 5.8× the cleanest month (August, 16 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyFeb 1890 µg/m³Aug 1316 µg/m³
PM2.5 (µg/m³)Level
Jan80Unhealthy
Feb91Unhealthy
Mar86Unhealthy
Apr64Unhealthy
May37Poor
Jun28Moderate
Jul18Moderate
Aug16Moderate
Sep22Moderate
Oct39Poor
Nov51Poor
Dec71Unhealthy
Location & terrain

Where is Dosso?

Dosso sits at 13.0°N, 3.2°E, 218 m above sea level, in Niger. The nearest listed city is Birnin Gaouré, 31 km away.

KolloYouri KourtéréDogondoutchiBirnin KebbiNiamey

Topography around Dosso

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

Within 3 km, the terrain around Dosso has only modest variations in elevation — a maximum elevation change of 35 m around an average of 225 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 54 m; within 80 km, only modest variations in elevation — a maximum elevation change of 112 m.

The land around Dosso is covered by grassland (33%), artificial surfaces (33%) and cropland (28%) within 3 km, grassland (57%) and cropland (34%) within 16 km, and grassland (63%) and cropland (24%) within 80 km.

3 km
35 m
16 km
54 m
80 km
112 m
shrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Birnin Gaouré 31 km · Baléyara 86 km · Say 90 km · Kollo 97 km · Youri Kourtéré 107 km · Dogondoutchi 112 km · Birnin Kebbi 127 km · Niamey 128 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 Dosso (13.049°, 3.1937°, elevation 218 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).