Boulsa in Summer
In summer (June, July and August), Boulsa sees average daytime highs around 33°C and overnight lows near 25°C, with 307 mm of rain over about 44 wet days across the season. It is the coldest season of the year and the wettest season of the year.
Over the season highs ease from about 36°C in early June to 31°C by late August. The sky is clear or mostly clear about 28% of the time across summer, and the air most often feels oppressive.
Summer is Boulsa's 2nd-best season to visit on our travel score. For the whole year in context, see Boulsa's year-round climate.
- Avg daytime high
- 33°C
- coldest season of the year
- Avg overnight low
- 25°C
- Rainfall
- 307 mm
- 44 wet days
- Avg wind
- 10 km/h
- Travel score
- 3.1
- 2nd-best season
- Months
- Jun · Jul · Aug
Temperature in Boulsa in Summer
Over the season highs ease from about 36°C in early June to 31°C by late August.
A typical summer day in Boulsa reaches about 33°C and drops to 25°C overnight. The warmest of the three months is June, the coolest August.
How summer really feels in Boulsa
Once humidity and wind are folded in, summer brings about 92 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Boulsa weather by month
How the three summer months (June, July and August) 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 Summer
The sky is clear or mostly clear about 28% of the time across summer.
Chance of precipitation in Summer
Boulsa gets around 307 mm of rain over 44 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 10 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 42 min in early June to 12 h 18 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 6.0 kWh/m².
Hazard calendar for Boulsa
In summer, 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 summer a good time to visit Boulsa?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a weaker month for outdoor sightseeing in Boulsa.
What to pack for Boulsa in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Boulsa sees daytime highs around 33°C and nights near 25°C. Pack light clothes, rain gear and sun protection. About 44 days see rain.
UV index in Boulsa in Summer
Clear-sky midday UV across summer 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 Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer 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.