Nioko I weather in September

In September, Nioko I sees average daytime highs of 32°C and overnight lows near 24°C, with 104 mm of rain across 16 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 31°C in the first days to 33°C by the end. The sky is clear or mostly clear about 30% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 12 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Nioko I's 10th-clearest and 12th-windiest month. For the whole year in context, see Nioko I's year-round climate.

Daytime high
32°
9th warmest
Overnight low
24°
6th coldest
Rainfall
104 mm
16 wet days
Daylight
12 h 06 min
5:58 AM – 6:02 PM
Cloud cover
58%
10th clearest
Wind
7 km/h
12th windiest
Solar energy
5.93 kWh/m²
Travel score
3.5
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 31°C in the first days to 33°C by the end.

A typical September day in Nioko I reaches about 32°C in the afternoon and slips back to 24°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 34°C. Set against its neighbours, September runs about 1°C warmer than August and about 3°C cooler than October.

20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13123
23123
33123
43123
53123
63123
73123
83123
93123
103123
113123
123123
133223
143224
153224
163224
173224
183224
193224
203224
213224
223224
233224
243324
253324
263324
273324
283324
293324
303324

How September really feels in Nioko I

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.

Nioko I 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°00.111.45.4
Feb35° / 21°00.111.63.4
Mar38° / 24°20.411.91.3
Apr39° / 27°102.812.30.7
May38° / 28°246.212.61.4
Jun35° / 26°5010.112.72.8
Jul32° / 24°12518.312.73.3
Aug31° / 23°19822.212.43.3
Sep32° / 24°1041612.13.5
Oct35° / 24°305.911.73.0
Nov35° / 21°10.111.43.1
Dec33° / 18°0011.34.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% 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 49%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13367
23367
33466
43664
53763
63862
73961
84159
94258
104357
114456
124654
134753
144951
155050
165149
175248
185446
195545
205743
215941
226040
236238
246337
256535
266535
276733
286832
296832
306832

Chance of precipitation in September

Any precipitation

Nioko I gets around 104 mm of rain over 16 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 54% and peaks near 69% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
169
268
367
467
566
665
764
863
962
1061
1160
1259
1358
1457
1556
1655
1754
1853
1951
2050
2148
2247
2345
2443
2541
2640
2738
2837
2936
3034

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 95% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
10982
20982
30982
40982
50982
60982
70982
80982
90973
100973
110973
120964
131954
141954
151945
161945
171936
181936
191936
201936
211927
221927
231927
241927
251936
262926
272926
283916
293925
304915

Wind in September

Winds average 7 km/h in September, the calmest month.

Across September, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 12 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 18 minutes over September. Sunrise moves from 5:58 AM to 5:58 AM, and sunset from 6:13 PM to 5:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:586:13
212.25:586:12
312.25:586:11
412.25:586:11
512.25:586:10
612.25:586:09
712.25:586:09
812.25:586:08
912.15:586:07
1012.15:586:06
1112.15:586:06
1212.15:586:05
1312.15:586:04
1412.15:586:04
1512.15:586:03
1612.15:586:02
1712.15:586:01
1812.05:586:01
1912.05:586:00
2012.05:585:59
2112.05:585:58
2212.05:585:58
2312.05:585:57
2412.05:585:56
2512.05:585:56
2611.95:585:55
2711.95:585:54
2811.95:585:54
2911.95:585:53
3011.95:585:52

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.93 kWh/m².

For context, solar energy here swings from a low near 5.2 kWh/m² to a high of 6.76 kWh/m² in March across the year — September's 5.93 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.4Bright
25.5Bright
35.5Bright
45.5Bright
55.6Bright
65.6Bright
75.7Bright
85.7Bright
95.7Bright
105.8Bright
115.8Bright
125.8Bright
135.9Bright
145.9Bright
155.9Bright
165.9Bright
176.0Bright
186.0Bright
196.0Intense
206.0Intense
216.1Intense
226.1Intense
236.1Intense
246.1Intense
256.1Intense
266.1Intense
276.2Intense
286.2Intense
296.2Intense
306.2Intense
Planning a trip in September

Hazard calendar for Nioko I

In seasonPeak

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

Nioko I's monsoon runs July–September, when most of the year's rain falls.

Nioko I sees seasonal dust haze (February–July), heaviest in March.

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

Is September a good time to visit Nioko I?

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

3.5
Sightseeing
3rd-best month of the year
5.5
Beach & pool
7th-best month of the year

September is a weaker month for outdoor sightseeing in Nioko I.

What to pack for Nioko I in September

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

In September, Nioko I sees daytime highs around 32°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.

light clothesrain gearsun protection

UV index in Nioko I 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 Nioko I peaks around March 16 at about 14 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highMar 16UV 14Dec 15UV 8
UV index (midday)Level
Jan10Very high
Feb12Extreme
Mar14Extreme
Apr11Extreme
May12Extreme
Jun11Extreme
Jul11Extreme
Aug12Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in Nioko I 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 Nioko I is worst in March — around 79 µg/m³ PM2.5 (unhealthy), about 4.7× the cleanest month (August, 17 µg/m³).

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

0306090JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorMar 1078 µg/m³Aug 1317 µg/m³
PM2.5 (µg/m³)Level
Jan66Unhealthy
Feb77Unhealthy
Mar79Unhealthy
Apr61Unhealthy
May36Poor
Jun28Moderate
Jul19Moderate
Aug17Moderate
Sep23Moderate
Oct35Poor
Nov43Poor
Dec56Unhealthy
Location & terrain

Where is Nioko I?

Nioko I sits at 12.4°N, 1.4°W, 293 m above sea level, in Burkina Faso. The nearest listed city is Saaba, 4.0 km away.

KokologoBarogo

Topography around Nioko I

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

Within 3 km, the terrain around Nioko I has only modest variations in elevation — a maximum elevation change of 41 m around an average of 296 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 68 m; within 80 km, significant variations in elevation — a maximum elevation change of 260 m.

The land around Nioko I is covered by artificial surfaces (77%) within 3 km, artificial surfaces (31%), grassland (27%) and shrubs (21%) within 16 km, and cropland (39%), grassland (35%) and shrubs (23%) within 80 km.

3 km
41 m
16 km
68 m
80 km
260 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Saaba 4.0 km · Ouagadougou 11 km · Saonré 20 km · Zinguédéssé 23 km · Ziniaré 26 km · Kombissiri 38 km · Kokologo 53 km · Barogo 54 km

Burkina Faso travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type C / E
220 V · 50 Hz
Prices
≈ 37% of US
price level, 2025
GDP per capita
$1,148
2025
Happiness
4.5 / 10
World Happiness, 2025
Homicide rate
1.3
per 100k, 2017
Road deaths
31
per 100k/yr, 2019
Income group
Low
World Bank
Religion
Muslim 64%Roman Catholic 20%Animiste 9%Protestant 6%

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 Nioko I (12.395°, -1.4386°, elevation 293 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).