Boulsa in Fall
In fall (September, October and November), Boulsa sees average daytime highs around 34°C and overnight lows near 23°C, with 108 mm of rain over about 18 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.
Over the season highs climb from about 31°C in early September to 34°C by late November. The sky is clear or mostly clear about 50% of the time across fall, and the air most often feels oppressive.
Fall is Boulsa's 3rd-best season to visit on our travel score. For the whole year in context, see Boulsa's year-round climate.
- Avg daytime high
- 34°C
- 2nd-warmest season
- Avg overnight low
- 23°C
- Rainfall
- 108 mm
- 18 wet days
- Avg wind
- 8 km/h
- Travel score
- 3.1
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Boulsa in Fall
Over the season highs climb from about 31°C in early September to 34°C by late November.
A typical fall day in Boulsa reaches about 34°C and drops to 23°C overnight. The warmest of the three months is November, the coolest November.
How fall really feels in Boulsa
Once humidity and wind are folded in, fall brings about 91 days that feel above 32°C and 0 that feel at or below 0°C.
The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Boulsa weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 32° / 18° | 0 | 0 | 11.3 | 5.6 |
| Feb | 35° / 21° | 0 | 0.1 | 11.6 | 3.5 |
| Mar | 38° / 24° | 1 | 0.4 | 11.9 | 1.2 |
| Apr | 39° / 27° | 7 | 1.8 | 12.3 | 0.4 |
| May | 38° / 28° | 17 | 5.3 | 12.6 | 1.1 |
| Jun | 35° / 26° | 41 | 8.5 | 12.7 | 2.6 |
| Jul | 32° / 24° | 97 | 15.5 | 12.7 | 3.3 |
| Aug | 31° / 24° | 170 | 19.8 | 12.4 | 3.4 |
| Sep | 32° / 24° | 89 | 12.9 | 12.1 | 3.5 |
| Oct | 35° / 24° | 19 | 4.8 | 11.7 | 2.7 |
| Nov | 35° / 21° | 0 | 0.1 | 11.4 | 3.0 |
| Dec | 33° / 18° | 0 | 0 | 11.3 | 5.0 |
Cloud cover in Fall
The sky is clear or mostly clear about 50% of the time across fall.
Chance of precipitation in Fall
Boulsa gets around 108 mm of rain over 18 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 8 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 12 min in early September to 11 h 18 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 6.0 kWh/m².
Hazard calendar for Boulsa
In fall, Boulsa overlaps its dust season. The full year is below, with each hazard's peak months called out.
Boulsa sees seasonal dust haze (February–July), heaviest in March.
Is fall a good time to visit Boulsa?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a weaker month for outdoor sightseeing in Boulsa. The water and warmth also suit a beach or pool day.
What to pack for Boulsa in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Boulsa sees daytime highs around 34°C and nights near 23°C. Pack light clothes and sun protection. Worth having: rain gear. About 18 days see rain.
UV index in Boulsa in Fall
Clear-sky midday UV across fall averages 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 Boulsa peaks around March 14 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 9 | 12 | 14 | 10 | 12 | 11 | 11 | 12 | 12 | 11 | 9 | 8 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 9 | Very high |
| Feb | 12 | Extreme |
| Mar | 14 | Extreme |
| Apr | 10 | Extreme |
| May | 12 | Extreme |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 12 | Extreme |
| Sep | 12 | Extreme |
| Oct | 11 | Extreme |
| Nov | 9 | Very high |
| Dec | 8 | Very high |
Air quality in Boulsa in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in Boulsa is worst in February — around 77 µg/m³ PM2.5 (unhealthy), about 5.0× the cleanest month (August, 15 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 65 | 77 | 77 | 58 | 34 | 27 | 18 | 15 | 20 | 33 | 40 | 54 |
| Level | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Poor | Poor |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 65 | Unhealthy |
| Feb | 77 | Unhealthy |
| Mar | 77 | Unhealthy |
| Apr | 58 | Unhealthy |
| May | 34 | Moderate |
| Jun | 27 | Moderate |
| Jul | 18 | Moderate |
| Aug | 15 | Moderate |
| Sep | 20 | Moderate |
| Oct | 33 | Moderate |
| Nov | 40 | Poor |
| Dec | 54 | Poor |
Where is Boulsa?
Boulsa sits at 12.7°N, 0.6°W, 313 m above sea level, in Burkina Faso. The nearest listed city is Yalgo, 42 km away.
Topography around Boulsa
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Boulsa.
Within 3 km, the terrain around Boulsa has only modest variations in elevation — a maximum elevation change of 50 m around an average of 317 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 87 m; within 80 km, only modest variations in elevation — a maximum elevation change of 247 m.
The land around Boulsa is covered by grassland (51%) and cropland (28%) within 3 km, grassland (49%) and cropland (31%) within 16 km, and grassland (54%) and cropland (33%) within 80 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
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 Boulsa (12.6666°, -0.5747°, elevation 313 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.