Bountiful weather in September
In September, Bountiful sees average daytime highs of 76°F and overnight lows near 53°F, with 1.2 in of rain across 4.4 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 9th-wettest month of the year here.
Highs ease over the month, from about 81°F in the first days to 70°F by the end. The sky is clear or mostly clear about 68% of the time in September, and the air most often feels dry.
Daylight stretches from about 13 hours at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Bountiful's 3rd-clearest and 6th-windiest month. For the whole year in context, see Bountiful's year-round climate.
- Daytime high
- 76°
- 4th warmest
- Overnight low
- 53°
- 9th coldest
- Rainfall
- 1.2 in
- 4.4 wet days
- Daylight
- 12 h 18 min
- 6:14 AM – 6:30 PM
- Cloud cover
- 28%
- 3rd clearest
- Wind
- 5 mph
- 6th windiest
- Solar energy
- 5.67 kWh/m²
- Travel score
- 8.1
- out of 10
Bountiful is city in Davis County, Utah. United States.
- Density
- 1,278/km²
- people per km²
- Founded
- 1847
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in September
Highs ease over the month, from about 81°F in the first days to 70°F by the end.
A typical September day in Bountiful reaches about 76°F in the afternoon and slips back to 53°F overnight — a 22°F spread between the day's warmth and the night's chill. On most days the high lands between 63°F and 85°F. Set against its neighbours, September runs about 11°F cooler than August and about 14°F warmer than October.
| 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 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 82 | 82 | 81 | 81 | 80 | 80 | 79 | 79 | 78 | 78 | 77 | 77 | 76 | 76 | 76 | 75 | 75 | 74 | 74 | 73 | 73 | 73 | 72 | 72 | 71 | 71 | 71 | 70 | 70 | 69 |
| Avg low (°F) | 59 | 59 | 58 | 58 | 58 | 57 | 57 | 56 | 56 | 55 | 55 | 55 | 54 | 54 | 53 | 53 | 53 | 52 | 52 | 51 | 51 | 51 | 50 | 50 | 50 | 49 | 49 | 49 | 48 | 48 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 82 | 59 |
| 2 | 82 | 59 |
| 3 | 81 | 58 |
| 4 | 81 | 58 |
| 5 | 80 | 58 |
| 6 | 80 | 57 |
| 7 | 79 | 57 |
| 8 | 79 | 56 |
| 9 | 78 | 56 |
| 10 | 78 | 55 |
| 11 | 77 | 55 |
| 12 | 77 | 55 |
| 13 | 76 | 54 |
| 14 | 76 | 54 |
| 15 | 76 | 53 |
| 16 | 75 | 53 |
| 17 | 75 | 53 |
| 18 | 74 | 52 |
| 19 | 74 | 52 |
| 20 | 73 | 51 |
| 21 | 73 | 51 |
| 22 | 73 | 51 |
| 23 | 72 | 50 |
| 24 | 72 | 50 |
| 25 | 71 | 50 |
| 26 | 71 | 49 |
| 27 | 71 | 49 |
| 28 | 70 | 49 |
| 29 | 70 | 48 |
| 30 | 69 | 48 |
How September really feels in Bountiful
Once humidity and wind are folded in, September averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.
September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Bountiful weather by month
How September compares with the rest of the year at a glance. September is the 4th-warmest and 9th-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 35° / 20° | 2.1 | 10 | 8.7 | 9.4 | 0.0 |
| Feb | 40° / 24° | 1.7 | 8.4 | 6 | 10.4 | 0.1 |
| Mar | 50° / 32° | 1.8 | 8.8 | 4.7 | 11.7 | 2.3 |
| Apr | 58° / 39° | 2.5 | 10.9 | 2.9 | 13.1 | 4.2 |
| May | 68° / 47° | 2.2 | 8.4 | 0.2 | 14.3 | 6.7 |
| Jun | 79° / 56° | 1.1 | 4 | 0 | 14.9 | 7.8 |
| Jul | 88° / 64° | 0.3 | 1.8 | 0 | 14.6 | 5.7 |
| Aug | 86° / 63° | 0.4 | 2.8 | 0 | 13.6 | 6.2 |
| Sep | 76° / 53° | 1.2 | 4.4 | 0 | 12.3 | 8.1 |
| Oct | 61° / 42° | 1.7 | 6.6 | 1 | 10.9 | 5.8 |
| Nov | 47° / 30° | 1.7 | 8.3 | 4.8 | 9.7 | 1.5 |
| Dec | 36° / 21° | 2.0 | 9.1 | 8.1 | 9.1 | 0.0 |
Cloud cover in September
The sky is clear or mostly clear about 68% of the time in September.
Beyond those clear spells, partly cloudy skies cover about 12% of September, 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 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 84 | 84 | 84 | 84 | 83 | 83 | 83 | 83 | 82 | 82 | 82 | 81 | 81 | 80 | 80 | 80 | 80 | 80 | 80 | 79 | 79 | 79 | 79 | 78 | 78 | 78 | 77 | 76 | 77 | 76 |
| Cloudier (%) | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 19 | 19 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 23 | 24 | 23 | 24 |
| 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 | 82 | 18 |
| 10 | 82 | 18 |
| 11 | 82 | 18 |
| 12 | 81 | 19 |
| 13 | 81 | 19 |
| 14 | 80 | 20 |
| 15 | 80 | 20 |
| 16 | 80 | 20 |
| 17 | 80 | 20 |
| 18 | 80 | 20 |
| 19 | 80 | 20 |
| 20 | 79 | 21 |
| 21 | 79 | 21 |
| 22 | 79 | 21 |
| 23 | 79 | 21 |
| 24 | 78 | 22 |
| 25 | 78 | 22 |
| 26 | 78 | 22 |
| 27 | 77 | 23 |
| 28 | 76 | 24 |
| 29 | 77 | 23 |
| 30 | 76 | 24 |
Chance of precipitation in September
Bountiful gets around 1.2 in of rain over 4.4 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 15% and peaks near 18% 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 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 11 | 11 | 11 | 12 | 12 | 13 | 13 | 14 | 14 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 18 |
| Rain chance (%) | |
|---|---|
| 1 | 11 |
| 2 | 11 |
| 3 | 11 |
| 4 | 12 |
| 5 | 12 |
| 6 | 13 |
| 7 | 13 |
| 8 | 14 |
| 9 | 14 |
| 10 | 15 |
| 11 | 15 |
| 12 | 15 |
| 13 | 16 |
| 14 | 16 |
| 15 | 16 |
| 16 | 16 |
| 17 | 16 |
| 18 | 16 |
| 19 | 16 |
| 20 | 16 |
| 21 | 16 |
| 22 | 16 |
| 23 | 16 |
| 24 | 16 |
| 25 | 16 |
| 26 | 16 |
| 27 | 17 |
| 28 | 17 |
| 29 | 17 |
| 30 | 18 |
Humidity in September
Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, September lands in the dry band about 98% 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 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 94 | 94 | 94 | 94 | 95 | 95 | 95 | 95 | 96 | 96 | 97 | 97 | 98 | 98 | 98 | 99 | 99 | 99 | 99 | 99 | 99 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Comfortable (%) | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 4 | 4 | 3 | 3 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | |
|---|---|---|
| 1 | 94 | 6 |
| 2 | 94 | 6 |
| 3 | 94 | 6 |
| 4 | 94 | 6 |
| 5 | 95 | 5 |
| 6 | 95 | 5 |
| 7 | 95 | 5 |
| 8 | 95 | 5 |
| 9 | 96 | 4 |
| 10 | 96 | 4 |
| 11 | 97 | 3 |
| 12 | 97 | 3 |
| 13 | 98 | 2 |
| 14 | 98 | 2 |
| 15 | 98 | 2 |
| 16 | 99 | 1 |
| 17 | 99 | 1 |
| 18 | 99 | 1 |
| 19 | 99 | 1 |
| 20 | 99 | 1 |
| 21 | 99 | 1 |
| 22 | 100 | 0 |
| 23 | 100 | 0 |
| 24 | 100 | 0 |
| 25 | 100 | 0 |
| 26 | 100 | 0 |
| 27 | 100 | 0 |
| 28 | 100 | 0 |
| 29 | 100 | 0 |
| 30 | 100 | 0 |
Wind in September
Winds average 5 mph in September.
Across September, daily wind ranges from about 5 mph on the calmest days to 5 mph 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 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (mph) | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| 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 | calm | calm |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 5 | calm |
| 2 | 5 | calm |
| 3 | 5 | calm |
| 4 | 5 | calm |
| 5 | 5 | calm |
| 6 | 5 | calm |
| 7 | 5 | calm |
| 8 | 5 | calm |
| 9 | 5 | calm |
| 10 | 5 | calm |
| 11 | 5 | calm |
| 12 | 5 | calm |
| 13 | 5 | calm |
| 14 | 5 | calm |
| 15 | 5 | calm |
| 16 | 5 | calm |
| 17 | 5 | calm |
| 18 | 5 | calm |
| 19 | 5 | calm |
| 20 | 5 | calm |
| 21 | 5 | calm |
| 22 | 5 | calm |
| 23 | 5 | calm |
| 24 | 5 | calm |
| 25 | 5 | calm |
| 26 | 5 | calm |
| 27 | 5 | calm |
| 28 | 5 | calm |
| 29 | 5 | calm |
| 30 | 5 | calm |
Sunrise & sunset in September
Daylight runs from about 13 hours at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 84 minutes over September. Sunrise moves from 5:59 AM to 6:28 AM, and sunset from 6:56 PM to 6:05 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 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 13.0 | 12.9 | 12.9 | 12.8 | 12.8 | 12.7 | 12.7 | 12.6 | 12.6 | 12.5 | 12.5 | 12.5 | 12.4 | 12.4 | 12.3 | 12.3 | 12.2 | 12.2 | 12.1 | 12.1 | 12.0 | 12.0 | 11.9 | 11.9 | 11.8 | 11.8 | 11.8 | 11.7 | 11.7 | 11.6 |
| Sunrise (AM) | 5:59 | 6:00 | 6:01 | 6:02 | 6:03 | 6:04 | 6:05 | 6:06 | 6:07 | 6:08 | 6:09 | 6:10 | 6:11 | 6:12 | 6:13 | 6:14 | 6:15 | 6:16 | 6:17 | 6:18 | 6:19 | 6:20 | 6:21 | 6:22 | 6:23 | 6:24 | 6:25 | 6:26 | 6:27 | 6:28 |
| Sunset (PM) | 6:56 | 6:54 | 6:53 | 6:51 | 6:49 | 6:47 | 6:46 | 6:44 | 6:42 | 6:40 | 6:39 | 6:37 | 6:35 | 6:33 | 6:32 | 6:30 | 6:28 | 6:26 | 6:25 | 6:23 | 6:21 | 6:19 | 6:18 | 6:16 | 6:14 | 6:12 | 6:11 | 6:09 | 6:07 | 6:05 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.0 | 5:59 | 6:56 |
| 2 | 12.9 | 6:00 | 6:54 |
| 3 | 12.9 | 6:01 | 6:53 |
| 4 | 12.8 | 6:02 | 6:51 |
| 5 | 12.8 | 6:03 | 6:49 |
| 6 | 12.7 | 6:04 | 6:47 |
| 7 | 12.7 | 6:05 | 6:46 |
| 8 | 12.6 | 6:06 | 6:44 |
| 9 | 12.6 | 6:07 | 6:42 |
| 10 | 12.5 | 6:08 | 6:40 |
| 11 | 12.5 | 6:09 | 6:39 |
| 12 | 12.5 | 6:10 | 6:37 |
| 13 | 12.4 | 6:11 | 6:35 |
| 14 | 12.4 | 6:12 | 6:33 |
| 15 | 12.3 | 6:13 | 6:32 |
| 16 | 12.3 | 6:14 | 6:30 |
| 17 | 12.2 | 6:15 | 6:28 |
| 18 | 12.2 | 6:16 | 6:26 |
| 19 | 12.1 | 6:17 | 6:25 |
| 20 | 12.1 | 6:18 | 6:23 |
| 21 | 12.0 | 6:19 | 6:21 |
| 22 | 12.0 | 6:20 | 6:19 |
| 23 | 11.9 | 6:21 | 6:18 |
| 24 | 11.9 | 6:22 | 6:16 |
| 25 | 11.8 | 6:23 | 6:14 |
| 26 | 11.8 | 6:24 | 6:12 |
| 27 | 11.8 | 6:25 | 6:11 |
| 28 | 11.7 | 6:26 | 6:09 |
| 29 | 11.7 | 6:27 | 6:07 |
| 30 | 11.6 | 6:28 | 6:05 |
Solar energy in September
Average shortwave solar energy reaching the ground each day in September, about 5.67 kWh/m².
For context, solar energy here swings from a low near 2.03 kWh/m² to a high of 8.08 kWh/m² in June across the year — September's 5.67 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 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.4 | 6.4 | 6.3 | 6.3 | 6.2 | 6.2 | 6.1 | 6.0 | 6.0 | 6.0 | 5.9 | 5.8 | 5.8 | 5.7 | 5.7 | 5.6 | 5.6 | 5.5 | 5.5 | 5.4 | 5.4 | 5.3 | 5.3 | 5.2 | 5.2 | 5.1 | 5.0 | 5.0 | 4.9 | 4.9 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.4 | Intense |
| 2 | 6.4 | Intense |
| 3 | 6.3 | Intense |
| 4 | 6.3 | Intense |
| 5 | 6.2 | Intense |
| 6 | 6.2 | Intense |
| 7 | 6.1 | Intense |
| 8 | 6.0 | Intense |
| 9 | 6.0 | Intense |
| 10 | 6.0 | Bright |
| 11 | 5.9 | Bright |
| 12 | 5.8 | Bright |
| 13 | 5.8 | Bright |
| 14 | 5.7 | Bright |
| 15 | 5.7 | Bright |
| 16 | 5.6 | Bright |
| 17 | 5.6 | Bright |
| 18 | 5.5 | Bright |
| 19 | 5.5 | Bright |
| 20 | 5.4 | Bright |
| 21 | 5.4 | Bright |
| 22 | 5.3 | Bright |
| 23 | 5.3 | Bright |
| 24 | 5.2 | Bright |
| 25 | 5.2 | Bright |
| 26 | 5.1 | Bright |
| 27 | 5.0 | Bright |
| 28 | 5.0 | Bright |
| 29 | 4.9 | Bright |
| 30 | 4.9 | Bright |
Is September a good time to visit Bountiful?
Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
September is one of the better times to visit Bountiful for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Bountiful in September
From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In September, Bountiful sees daytime highs around 76°F and nights near 53°F. Worth packing: light clothes and sun protection. About 4 days see rain.
UV index in Bountiful in September
Clear-sky midday UV in September peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Bountiful peaks around June 23 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 2 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 5 | 5 | 7 | 10 | 10 | 9 | 7 | 5 | 3 | 2 |
| Level | Moderate | Moderate | Moderate | Moderate | Very high | Very high | Very high | Very high | Very high | Moderate | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Moderate |
| Feb | 3 | Moderate |
| Mar | 5 | Moderate |
| Apr | 5 | Moderate |
| May | 7 | Very high |
| Jun | 10 | Very high |
| Jul | 10 | Very high |
| Aug | 9 | Very high |
| Sep | 7 | Very high |
| Oct | 5 | Moderate |
| Nov | 3 | Moderate |
| Dec | 2 | Moderate |
Where is Bountiful?
Bountiful sits at 40.9°N, 111.9°W, 4,373 ft above sea level, in United States. The nearest listed city is Centerville, 1.9 mi away.
Topography around Bountiful
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Bountiful.
Within 2 miles, the terrain around Bountiful has significant variations in elevation — a maximum elevation change of 1,473 ft around an average of 4,495 ft above sea level; within 10 miles, very significant variations in elevation — a maximum elevation change of 5,220 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 7,346 ft.
The land around Bountiful is covered by artificial surfaces (50%) and trees (29%) within 2 miles, trees (39%) and grassland (28%) within 10 miles, and grassland (38%) and trees (27%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- 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 Bountiful (40.8894°, -111.8808°, elevation 4,373 ft), 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).