Boromo weather in September

In September, Boromo sees average daytime highs of 31°C and overnight lows near 23°C, with 142 mm of rain across 18 wet days and about 12.1 hours of daylight. It is the 11th-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 30°C in the first days to 32°C by the end. The sky is clear or mostly clear about 22% 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 Boromo's 10th-clearest and 12th-windiest month. For the whole year in context, see Boromo's year-round climate.

Daytime high
31°
11th warmest
Overnight low
23°
6th coldest
Rainfall
142 mm
18 wet days
Daylight
12 h 06 min
6:04 AM – 6:08 PM
Cloud cover
63%
10th clearest
Wind
7 km/h
12th windiest
Solar energy
5.55 kWh/m²
Travel score
3.7
out of 10

Boromo is village in Burkina Faso.

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 30°C in the first days to 32°C by the end.

A typical September day in Boromo reaches about 31°C in the afternoon and slips back to 23°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 33°C. Set against its neighbours, September runs about 1°C warmer than August and about 3°C cooler than October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13023
23023
33023
43023
53023
63023
73023
83023
93023
103023
113023
123023
133023
143123
153123
163123
173123
183123
193123
203123
213123
223123
233123
243123
253223
263223
273223
283223
293223
303223

How September really feels in Boromo

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.

Boromo weather by month

How September compares with the rest of the year at a glance. September is the 11th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 19°0011.44.5
Feb36° / 22°10.111.62.8
Mar38° / 25°41.211.91.1
Apr39° / 27°204.712.30.8
May37° / 27°4910.712.51.7
Jun34° / 25°6512.612.73.0
Jul31° / 24°13919.912.63.4
Aug30° / 23°22023.612.43.5
Sep31° / 23°1421812.13.7
Oct34° / 24°439.211.73.1
Nov36° / 21°20.311.52.7
Dec34° / 19°0011.34.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% 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 56%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12773
22872
32971
42971
53169
63367
73367
83466
93565
103763
113862
123961
134060
144258
154357
164357
174555
184753
194951
204951
215149
225347
235545
245644
255743
265941
276040
286040
296238
306337

Chance of precipitation in September

Any precipitation

Boromo gets around 142 mm of rain over 18 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 60% and peaks near 73% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
173
272
372
471
570
669
768
867
966
1065
1164
1263
1362
1462
1561
1660
1759
1858
1957
2056
2155
2254
2353
2452
2551
2651
2750
2849
2948
3046

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 89% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
10964
20964
30964
40964
50955
60955
70955
80955
90946
100946
110937
120928
130919
1409010
1508911
1608812
1708713
1808614
1908515
2008515
2108416
2208416
2308416
2408416
2508515
2618415
2718514
2818514
2918613
3028612

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 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
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 6:05 AM to 6:04 AM, and sunset from 6:18 PM to 5:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:056:18
212.26:056:18
312.26:056:17
412.26:056:16
512.26:046:16
612.26:046:15
712.26:046:14
812.26:046:14
912.16:046:13
1012.16:046:12
1112.16:046:11
1212.16:046:11
1312.16:046:10
1412.16:046:09
1512.16:046:09
1612.16:046:08
1712.16:046:07
1812.06:046:07
1912.06:046:06
2012.06:046:05
2112.06:046:04
2212.06:046:04
2312.06:046:03
2412.06:046:02
2512.06:046:02
2612.06:046:01
2711.96:046:00
2811.96:046:00
2911.96:045:59
3011.96:045:58

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.55 kWh/m².

For context, solar energy here swings from a low near 4.87 kWh/m² to a high of 6.63 kWh/m² in March across the year — September's 5.55 kWh/m² sits near the bottom.

0246151015202530
Solar energy (kWh/m²)Level
15.0Bright
25.1Bright
35.1Bright
45.1Bright
55.2Bright
65.2Bright
75.2Bright
85.3Bright
95.3Bright
105.4Bright
115.4Bright
125.4Bright
135.5Bright
145.5Bright
155.5Bright
165.6Bright
175.6Bright
185.6Bright
195.7Bright
205.7Bright
215.7Bright
225.8Bright
235.8Bright
245.8Bright
255.8Bright
265.8Bright
275.9Bright
285.9Bright
295.9Bright
305.9Bright
Planning a trip in September

Hazard calendar for Boromo

In seasonPeak

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

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

Boromo 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 Boromo?

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

3.7
Sightseeing
3rd-best month of the year
5.4
Beach & pool
7th-best month of the year

September is a weaker month for outdoor sightseeing in Boromo.

What to pack for Boromo in September

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

In September, Boromo sees daytime highs around 31°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 18 days see rain.

light clothesrain gearsun protection

UV index in Boromo 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 Boromo peaks around March 17 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highMar 17UV 13Dec 22UV 9
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar14Extreme
Apr11Extreme
May12Extreme
Jun11Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec9Very high

Air quality in Boromo 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 Boromo is worst in February — around 67 µg/m³ PM2.5 (unhealthy), about 5.3× the cleanest month (August, 13 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorFeb 1866 µg/m³Aug 1313 µg/m³
PM2.5 (µg/m³)Level
Jan56Unhealthy
Feb67Unhealthy
Mar62Unhealthy
Apr47Poor
May26Moderate
Jun21Moderate
Jul14Moderate
Aug13Moderate
Sep18Moderate
Oct28Moderate
Nov37Poor
Dec51Poor
Location & terrain

Where is Boromo?

Boromo sits at 11.7°N, 2.9°W, 263 m above sea level, in Burkina Faso. The nearest listed city is Fara Department, 30 km away.

TitaDanoHoundéRéoGaoKoudougou

Topography around Boromo

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

Within 3 km, the terrain around Boromo has only modest variations in elevation — a maximum elevation change of 46 m around an average of 268 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 80 m; within 80 km, significant variations in elevation — a maximum elevation change of 328 m.

The land around Boromo is covered by cropland (37%) and grassland (29%) within 3 km, shrubs (39%), cropland (31%) and grassland (27%) within 16 km, and cropland (45%), shrubs (28%) and grassland (27%) within 80 km.

3 km
46 m
16 km
80 m
80 km
328 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Fara Department 30 km · Tita 49 km · Dano 68 km · Houndé 69 km · Réo 81 km · Gao 83 km · Koudougou 83 km · 84 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 Boromo (11.7454°, -2.9301°, elevation 263 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).