Kaya weather in February
In February, Kaya sees average daytime highs of 34°C and overnight lows near 20°C, with 0 mm of rain across 0 wet days and about 11.6 hours of daylight. It is the 7th-warmest and 10th-wettest month of the year here.
Highs climb over the month, from about 33°C in the first days to 36°C by the end. The sky is clear or mostly clear about 67% of the time in February, and the air most often feels dry.
Daylight stretches from about 11 h 24 min at the start of February to 11 h 42 min by month's end. Set against the rest of the year, February is Kaya's 1st-clearest and 1st-windiest month. For the whole year in context, see Kaya's year-round climate.
- Daytime high
- 34°
- 7th warmest
- Overnight low
- 20°
- 3rd coldest
- Rainfall
- 0 mm
- 0 wet days
- Daylight
- 11 h 36 min
- 6:32 AM – 6:06 PM
- Cloud cover
- 28%
- 1st clearest
- Wind
- 12 km/h
- 1st windiest
- Solar energy
- 6.26 kWh/m²
- Travel score
- 3.7
- out of 10
Kaya is fifth largest city in Burkina Faso, lying northeast of Ouagadougou, capital of Sanmatenga Province, to which it is connected by railway.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in February
Highs climb over the month, from about 33°C in the first days to 36°C by the end.
A typical February day in Kaya reaches about 34°C in the afternoon and slips back to 20°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 38°C. Set against its neighbours, February runs about 3°C warmer than January and about 4°C cooler than March.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 33 | 33 | 33 | 33 | 33 | 33 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 36 | 36 | 36 | 36 | 36 | 36 |
| Avg low (°C) | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 22 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 33 | 19 |
| 2 | 33 | 19 |
| 3 | 33 | 19 |
| 4 | 33 | 19 |
| 5 | 33 | 19 |
| 6 | 33 | 19 |
| 7 | 34 | 19 |
| 8 | 34 | 19 |
| 9 | 34 | 19 |
| 10 | 34 | 20 |
| 11 | 34 | 20 |
| 12 | 34 | 20 |
| 13 | 34 | 20 |
| 14 | 34 | 20 |
| 15 | 34 | 20 |
| 16 | 35 | 20 |
| 17 | 35 | 21 |
| 18 | 35 | 21 |
| 19 | 35 | 21 |
| 20 | 35 | 21 |
| 21 | 35 | 21 |
| 22 | 35 | 21 |
| 23 | 36 | 21 |
| 24 | 36 | 21 |
| 25 | 36 | 22 |
| 26 | 36 | 22 |
| 27 | 36 | 22 |
| 28 | 36 | 22 |
How February really feels in Kaya
Once humidity and wind are folded in, February averages 28 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in February is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Kaya weather by month
How February compares with the rest of the year at a glance. February is the 7th-warmest and 10th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 31° / 17° | 0 | 0 | 11.3 | 5.7 |
| Feb | 34° / 20° | 0 | 0 | 11.6 | 3.7 |
| Mar | 38° / 24° | 1 | 0.4 | 11.9 | 1.3 |
| Apr | 40° / 27° | 5 | 1.3 | 12.3 | 0.3 |
| May | 38° / 28° | 14 | 4.5 | 12.6 | 0.9 |
| Jun | 36° / 26° | 39 | 8.4 | 12.8 | 2.4 |
| Jul | 33° / 24° | 100 | 15.7 | 12.7 | 3.2 |
| Aug | 31° / 24° | 158 | 19.4 | 12.4 | 3.5 |
| Sep | 33° / 24° | 80 | 12.5 | 12.1 | 3.5 |
| Oct | 36° / 24° | 18 | 4.3 | 11.7 | 2.5 |
| Nov | 36° / 21° | 0 | 0.2 | 11.4 | 2.8 |
| Dec | 33° / 18° | 0 | 0 | 11.2 | 4.9 |
Cloud cover in February
The sky is clear or mostly clear about 67% of the time in February, the clearest month of the year.
Beyond those clear spells, partly cloudy skies cover about 14% of February, with mostly cloudy or overcast conditions the remaining 20%. Skies tend to cloud over as the month goes on.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 84 | 84 | 84 | 84 | 83 | 83 | 83 | 83 | 81 | 81 | 80 | 80 | 80 | 80 | 79 | 79 | 79 | 79 | 79 | 79 | 79 | 79 | 78 | 78 | 78 | 78 | 78 | 78 |
| Cloudier (%) | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 19 | 19 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 22 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 84 | 16 |
| 2 | 84 | 16 |
| 3 | 84 | 16 |
| 4 | 84 | 16 |
| 5 | 83 | 17 |
| 6 | 83 | 17 |
| 7 | 83 | 17 |
| 8 | 83 | 17 |
| 9 | 81 | 19 |
| 10 | 81 | 19 |
| 11 | 80 | 20 |
| 12 | 80 | 20 |
| 13 | 80 | 20 |
| 14 | 80 | 20 |
| 15 | 79 | 21 |
| 16 | 79 | 21 |
| 17 | 79 | 21 |
| 18 | 79 | 21 |
| 19 | 79 | 21 |
| 20 | 79 | 21 |
| 21 | 79 | 21 |
| 22 | 79 | 21 |
| 23 | 78 | 22 |
| 24 | 78 | 22 |
| 25 | 78 | 22 |
| 26 | 78 | 22 |
| 27 | 78 | 22 |
| 28 | 78 | 22 |
Chance of precipitation in February
Kaya gets around 0 mm of rain over 0 wet days in February. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 0% and peaks near 0% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Rain chance (%) | |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 0 |
| 9 | 0 |
| 10 | 0 |
| 11 | 0 |
| 12 | 0 |
| 13 | 0 |
| 14 | 0 |
| 15 | 0 |
| 16 | 0 |
| 17 | 0 |
| 18 | 0 |
| 19 | 0 |
| 20 | 0 |
| 21 | 0 |
| 22 | 0 |
| 23 | 0 |
| 24 | 0 |
| 25 | 0 |
| 26 | 0 |
| 27 | 0 |
| 28 | 0 |
Humidity in February
Most of February feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, February lands in the dry band about 99% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 98 | 98 |
| Comfortable (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 |
| Dry (%) | Comfortable (%) | |
|---|---|---|
| 1 | 100 | 0 |
| 2 | 100 | 0 |
| 3 | 100 | 0 |
| 4 | 100 | 0 |
| 5 | 100 | 0 |
| 6 | 100 | 0 |
| 7 | 100 | 0 |
| 8 | 100 | 0 |
| 9 | 100 | 0 |
| 10 | 100 | 0 |
| 11 | 100 | 0 |
| 12 | 100 | 0 |
| 13 | 100 | 0 |
| 14 | 100 | 0 |
| 15 | 100 | 0 |
| 16 | 100 | 0 |
| 17 | 100 | 0 |
| 18 | 99 | 1 |
| 19 | 99 | 1 |
| 20 | 99 | 1 |
| 21 | 99 | 1 |
| 22 | 99 | 1 |
| 23 | 99 | 1 |
| 24 | 99 | 1 |
| 25 | 99 | 1 |
| 26 | 99 | 1 |
| 27 | 98 | 2 |
| 28 | 98 | 2 |
Wind in February
Winds average 12 km/h in February, the windiest month of the year.
Across February, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 12 | calm |
| 2 | 12 | calm |
| 3 | 12 | calm |
| 4 | 12 | calm |
| 5 | 12 | calm |
| 6 | 12 | calm |
| 7 | 12 | calm |
| 8 | 12 | calm |
| 9 | 12 | calm |
| 10 | 12 | calm |
| 11 | 12 | calm |
| 12 | 12 | calm |
| 13 | 12 | calm |
| 14 | 12 | calm |
| 15 | 12 | calm |
| 16 | 12 | calm |
| 17 | 12 | calm |
| 18 | 12 | calm |
| 19 | 12 | calm |
| 20 | 12 | calm |
| 21 | 12 | calm |
| 22 | 12 | calm |
| 23 | 12 | calm |
| 24 | 12 | calm |
| 25 | 11 | calm |
| 26 | 11 | calm |
| 27 | 11 | calm |
| 28 | 11 | calm |
Sunrise & sunset in February
Daylight runs from about 11 h 24 min at the start of February to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 18 minutes over February. Sunrise moves from 6:35 AM to 6:26 AM, and sunset from 6:01 PM to 6:09 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 11.4 | 11.4 | 11.4 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 |
| Sunrise (AM) | 6:35 | 6:35 | 6:35 | 6:35 | 6:34 | 6:34 | 6:34 | 6:34 | 6:34 | 6:33 | 6:33 | 6:33 | 6:33 | 6:32 | 6:32 | 6:32 | 6:31 | 6:31 | 6:30 | 6:30 | 6:30 | 6:29 | 6:29 | 6:28 | 6:28 | 6:27 | 6:27 | 6:26 |
| Sunset (PM) | 6:01 | 6:01 | 6:02 | 6:02 | 6:02 | 6:03 | 6:03 | 6:04 | 6:04 | 6:04 | 6:05 | 6:05 | 6:05 | 6:06 | 6:06 | 6:06 | 6:07 | 6:07 | 6:07 | 6:07 | 6:08 | 6:08 | 6:08 | 6:08 | 6:09 | 6:09 | 6:09 | 6:09 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.4 | 6:35 | 6:01 |
| 2 | 11.4 | 6:35 | 6:01 |
| 3 | 11.4 | 6:35 | 6:02 |
| 4 | 11.5 | 6:35 | 6:02 |
| 5 | 11.5 | 6:34 | 6:02 |
| 6 | 11.5 | 6:34 | 6:03 |
| 7 | 11.5 | 6:34 | 6:03 |
| 8 | 11.5 | 6:34 | 6:04 |
| 9 | 11.5 | 6:34 | 6:04 |
| 10 | 11.5 | 6:33 | 6:04 |
| 11 | 11.5 | 6:33 | 6:05 |
| 12 | 11.5 | 6:33 | 6:05 |
| 13 | 11.5 | 6:33 | 6:05 |
| 14 | 11.6 | 6:32 | 6:06 |
| 15 | 11.6 | 6:32 | 6:06 |
| 16 | 11.6 | 6:32 | 6:06 |
| 17 | 11.6 | 6:31 | 6:07 |
| 18 | 11.6 | 6:31 | 6:07 |
| 19 | 11.6 | 6:30 | 6:07 |
| 20 | 11.6 | 6:30 | 6:07 |
| 21 | 11.6 | 6:30 | 6:08 |
| 22 | 11.6 | 6:29 | 6:08 |
| 23 | 11.7 | 6:29 | 6:08 |
| 24 | 11.7 | 6:28 | 6:08 |
| 25 | 11.7 | 6:28 | 6:09 |
| 26 | 11.7 | 6:27 | 6:09 |
| 27 | 11.7 | 6:27 | 6:09 |
| 28 | 11.7 | 6:26 | 6:09 |
Solar energy in February
Average shortwave solar energy reaching the ground each day in February, about 6.26 kWh/m².
For context, solar energy here swings from a low near 5.49 kWh/m² to a high of 6.82 kWh/m² in April across the year — February's 6.26 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.0 | 6.0 | 6.0 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.4 | 6.4 | 6.4 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.0 | Intense |
| 2 | 6.0 | Intense |
| 3 | 6.0 | Intense |
| 4 | 6.1 | Intense |
| 5 | 6.1 | Intense |
| 6 | 6.1 | Intense |
| 7 | 6.1 | Intense |
| 8 | 6.1 | Intense |
| 9 | 6.2 | Intense |
| 10 | 6.2 | Intense |
| 11 | 6.2 | Intense |
| 12 | 6.2 | Intense |
| 13 | 6.2 | Intense |
| 14 | 6.2 | Intense |
| 15 | 6.3 | Intense |
| 16 | 6.3 | Intense |
| 17 | 6.3 | Intense |
| 18 | 6.3 | Intense |
| 19 | 6.3 | Intense |
| 20 | 6.3 | Intense |
| 21 | 6.4 | Intense |
| 22 | 6.4 | Intense |
| 23 | 6.4 | Intense |
| 24 | 6.5 | Intense |
| 25 | 6.5 | Intense |
| 26 | 6.5 | Intense |
| 27 | 6.5 | Intense |
| 28 | 6.5 | Intense |
Hazard calendar for Kaya
In February, Kaya sits inside its dust season. The full year is below, with each hazard's peak months called out.
Kaya sees seasonal dust haze (February–July), heaviest in March.
Is February a good time to visit Kaya?
Our two travel scores rate February for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
February is a weaker month for outdoor sightseeing in Kaya. The water and warmth also suit a beach or pool day.
What to pack for Kaya in February
From February's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In February, Kaya sees daytime highs around 34°C and nights near 20°C. Pack light clothes and sun protection.
UV index in Kaya in February
Clear-sky midday UV in February peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Kaya peaks around March 17 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 7 (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) | 8 | 10 | 13 | 10 | 11 | 10 | 10 | 12 | 12 | 11 | 9 | 7 |
| Level | Very high | Very high | Extreme | Very high | Extreme | Extreme | Very high | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 8 | Very high |
| Feb | 10 | Very high |
| Mar | 13 | Extreme |
| Apr | 10 | Very high |
| May | 11 | Extreme |
| Jun | 10 | Extreme |
| Jul | 10 | Very high |
| Aug | 12 | Extreme |
| Sep | 12 | Extreme |
| Oct | 11 | Extreme |
| Nov | 9 | Very high |
| Dec | 7 | Very high |
Air quality in Kaya in February
Average fine-particle pollution (PM2.5) through the year — so you can see where February falls, not just the annual average.
Air quality in Kaya 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 Kaya?
Kaya sits at 13.1°N, 1.1°W, 366 m above sea level, in Burkina Faso. The nearest listed city is Korsimoro, 29 km away.
Topography around Kaya
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Kaya.
Within 3 km, the terrain around Kaya has only modest variations in elevation — a maximum elevation change of 54 m around an average of 333 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 221 m; within 80 km, significant variations in elevation — a maximum elevation change of 254 m.
The land around Kaya is covered by artificial surfaces (48%) and grassland (27%) within 3 km, grassland (44%) and cropland (31%) within 16 km, and grassland (54%) and cropland (25%) 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 Kaya (13.0883°, -1.0837°, elevation 366 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).