Niono weather in September

In September, Niono sees average daytime highs of 33°C and overnight lows near 25°C, with 86 mm of rain across 11.4 wet days and about 12.1 hours of daylight. It is the 9th-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 34% 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 Niono's 11th-clearest and 12th-windiest month. For the whole year in context, see Niono's year-round climate.

Daytime high
33°
9th warmest
Overnight low
25°
7th coldest
Rainfall
86 mm
11.4 wet days
Daylight
12 h 06 min
6:16 AM – 6:21 PM
Cloud cover
54%
11th clearest
Wind
9 km/h
12th windiest
Solar energy
6.16 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 32°C in the first days to 35°C by the end.

A typical September day in Niono 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
93324
103324
113324
123324
133324
143324
153325
163325
173325
183425
193425
203425
213425
223425
233425
243525
253525
263525
273525
283525
293525
303625

How September really feels in Niono

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
heat index over the day's high
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.

Niono weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 18°20.111.35.5
Feb35° / 20°00.111.53.6
Mar38° / 24°00.111.91.4
Apr40° / 27°31.112.30.0
May41° / 29°103.112.70.0
Jun38° / 28°286.812.80.8
Jul34° / 26°991412.82.6
Aug32° / 24°1671812.53.3
Sep33° / 25°8611.412.13.1
Oct37° / 25°143.511.71.9
Nov36° / 22°10.111.32.7
Dec33° / 19°0011.24.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 22% 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 (%)
14357
24456
34456
44654
54753
64753
74951
85050
95149
105248
115347
125545
135545
145743
155743
165842
175941
186040
196139
206238
216238
226337
236436
246535
256535
266634
276634
286733
296733
306832

Chance of precipitation in September

Any precipitation

Niono gets around 86 mm of rain over 11.4 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 38% and peaks near 53% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
153
252
352
451
550
649
748
848
947
1046
1145
1244
1342
1441
1540
1639
1738
1836
1935
2033
2132
2230
2328
2427
2525
2624
2723
2822
2921
3020

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 80% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10001909
20001909
30001909
40001909
50002899
60002899
70002899
80002899
90002899
100003889
110003889
120004879
130004879
140005869
150006859
160007849
170018829
180019828
1900110818
2000112798
2100113797
2201214767
2301216756
2411318716
2511319715
2612421684
2722423654
2823524633
2933626593
3034728562

Wind in September

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

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 6:15 AM to 6:17 AM, and sunset from 6:32 PM to 6:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:156:32
212.36:156:31
312.36:156:31
412.26:156:30
512.26:156:29
612.26:166:28
712.26:166:28
812.26:166:27
912.26:166:26
1012.26:166:25
1112.16:166:25
1212.16:166:24
1312.16:166:23
1412.16:166:22
1512.16:166:21
1612.16:166:21
1712.16:166:20
1812.16:166:19
1912.06:166:18
2012.06:166:18
2112.06:166:17
2212.06:166:16
2312.06:166:15
2412.06:166:14
2512.06:166:14
2611.96:166:13
2711.96:166:12
2811.96:166:11
2911.96:176:11
3011.96:176:10

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.16 kWh/m².

For context, solar energy here swings from a low near 5.39 kWh/m² to a high of 7.02 kWh/m² in April across the year — September's 6.16 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.9Bright
56.0Bright
66.0Bright
76.0Intense
86.0Intense
96.0Intense
106.1Intense
116.1Intense
126.1Intense
136.1Intense
146.1Intense
156.2Intense
166.2Intense
176.2Intense
186.2Intense
196.2Intense
206.2Intense
216.2Intense
226.2Intense
236.3Intense
246.3Intense
256.3Intense
266.3Intense
276.3Intense
286.3Intense
296.3Intense
306.3Intense
Planning a trip in September

Hazard calendar for Niono

In seasonPeak

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

Niono sees seasonal dust haze (January–October), heaviest in June.

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

Is September a good time to visit Niono?

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
5.8
Beach & pool
5th-best month of the year

September is a weaker month for outdoor sightseeing in Niono.

What to pack for Niono in September

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

In September, Niono sees daytime highs around 33°C and nights near 25°C. Pack light clothes and sun protection. Worth having: rain gear. About 11 days see rain.

light clothessun protectionrain gear

UV index in Niono 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 Niono peaks around August 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 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 18UV 13Dec 18UV 8
UV index (midday)Level
Jan8Very high
Feb11Extreme
Mar13Extreme
Apr11Extreme
May11Extreme
Jun11Extreme
Jul11Extreme
Aug14Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec7Very high

Air quality in Niono 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 Niono is worst in February — around 71 µg/m³ PM2.5 (unhealthy), about 4.5× the cleanest month (August, 16 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorFeb 1971 µg/m³Aug 2017 µg/m³
PM2.5 (µg/m³)Level
Jan63Unhealthy
Feb71Unhealthy
Mar69Unhealthy
Apr57Unhealthy
May47Poor
Jun43Poor
Jul26Moderate
Aug16Moderate
Sep19Moderate
Oct35Moderate
Nov38Poor
Dec54Poor
Location & terrain

Where is Niono?

Niono sits at 14.3°N, 6.0°W, 286 m above sea level, in Mali. The nearest listed city is Siribala Coro, 26 km away.

Topography around Niono

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

Within 3 km, the terrain around Niono has only modest variations in elevation — a maximum elevation change of 18 m around an average of 277 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 20 m; within 80 km, only modest variations in elevation — a maximum elevation change of 71 m.

The land around Niono is covered by cropland (52%) within 3 km, cropland (46%) and grassland (23%) within 16 km, and grassland (57%), shrubs (20%) and cropland (20%) within 80 km.

3 km
18 m
16 km
20 m
80 km
71 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Siribala Coro 26 km · Dougabougou 50 km · Moninnpébougou 51 km · Markala 64 km · Diourou 65 km · Ké-Macina 75 km · Ségou 95 km · Pèlèngana 95 km

Mali travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type C / E
220 V · 50 Hz
Prices
≈ 34% of US
price level, 2025
GDP per capita
$1,193
2025
Happiness
4.6 / 10
World Happiness, 2025
Road deaths
22.7
per 100k/yr, 2019
Income group
Low
World Bank
English
Very low
EF EPI 408
Religion
Muslim 94%Christian 3%none 3%animist 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 Niono (14.2505°, -5.9868°, elevation 286 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).