Grand Canyon weather in April
In April, Grand Canyon sees average daytime highs of 65°F and overnight lows near 40°F, with 0.8 in of precipitation across 4.1 wet days and about 12.9 hours of daylight. It is the 7th-warmest and 9th-wettest month of the year here.
Highs climb over the month, from about 62°F in the first days to 70°F by the end. The sky is clear or mostly clear about 53% of the time in April, and the air most often feels dry.
Daylight stretches from about 12 h 18 min at the start of April to 13 h 24 min by month's end. Set against the rest of the year, April is Grand Canyon's 7th-clearest and 1st-windiest month. For the whole year in context, see Grand Canyon's year-round climate.
- Daytime high
- 65°
- 7th warmest
- Overnight low
- 40°
- 6th coldest
- Precipitation
- 0.8 in
- 4.1 wet days
- Daylight
- 12 h 54 min
- 6:01 AM – 6:56 PM
- Cloud cover
- 39%
- 7th clearest
- Wind
- 7 mph
- 1st windiest
- Solar energy
- 7.2 kWh/m²
- Travel score
- 7.1
- out of 10
Grand Canyon is human settlement in Coconino County, Arizona, United States of America.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in April
Highs climb over the month, from about 62°F in the first days to 70°F by the end.
A typical April day in Grand Canyon reaches about 65°F in the afternoon and slips back to 40°F overnight — a 26°F spread between the day's warmth and the night's chill. On most days the high lands between 52°F and 77°F. Set against its neighbours, April runs about 7°F warmer than March and about 10°F cooler than May.
| 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) | 62 | 62 | 62 | 62 | 62 | 62 | 63 | 63 | 63 | 64 | 64 | 64 | 64 | 65 | 65 | 65 | 66 | 66 | 66 | 67 | 67 | 67 | 68 | 68 | 69 | 69 | 69 | 70 | 70 | 70 |
| Avg low (°F) | 37 | 37 | 37 | 37 | 37 | 38 | 38 | 38 | 38 | 38 | 38 | 39 | 39 | 39 | 39 | 40 | 40 | 40 | 40 | 41 | 41 | 42 | 42 | 42 | 42 | 43 | 43 | 44 | 44 | 44 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 62 | 37 |
| 2 | 62 | 37 |
| 3 | 62 | 37 |
| 4 | 62 | 37 |
| 5 | 62 | 37 |
| 6 | 62 | 38 |
| 7 | 63 | 38 |
| 8 | 63 | 38 |
| 9 | 63 | 38 |
| 10 | 64 | 38 |
| 11 | 64 | 38 |
| 12 | 64 | 39 |
| 13 | 64 | 39 |
| 14 | 65 | 39 |
| 15 | 65 | 39 |
| 16 | 65 | 40 |
| 17 | 66 | 40 |
| 18 | 66 | 40 |
| 19 | 66 | 40 |
| 20 | 67 | 41 |
| 21 | 67 | 41 |
| 22 | 67 | 42 |
| 23 | 68 | 42 |
| 24 | 68 | 42 |
| 25 | 69 | 42 |
| 26 | 69 | 43 |
| 27 | 69 | 43 |
| 28 | 70 | 44 |
| 29 | 70 | 44 |
| 30 | 70 | 44 |
How April really feels in Grand Canyon
Once humidity and wind are folded in, April averages 0 days that feel above 90°F and 4 that feel at or below 32°F — the comfort signal a plain temperature reading hides.
The story in April is cold — wind chill drags the overnight "feels like" below the raw low.
Grand Canyon weather by month
How April compares with the rest of the year at a glance. April is the 7th-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 | 46° / 25° | 1.4 | 5.3 | 3.4 | 9.8 | 1.3 |
| Feb | 50° / 29° | 1.5 | 6.5 | 3.8 | 10.6 | 2.5 |
| Mar | 58° / 34° | 1.1 | 5.2 | 1.9 | 11.7 | 5.0 |
| Apr | 65° / 40° | 0.8 | 4.1 | 1.2 | 12.9 | 7.1 |
| May | 76° / 49° | 0.4 | 2.2 | 0.1 | 13.9 | 8.5 |
| Jun | 87° / 58° | 0.1 | 0.9 | 0 | 14.4 | 6.2 |
| Jul | 90° / 65° | 0.8 | 5.5 | 0 | 14.2 | 4.4 |
| Aug | 88° / 63° | 0.8 | 5.1 | 0 | 13.4 | 5.2 |
| Sep | 81° / 56° | 0.8 | 3.9 | 0 | 12.2 | 7.7 |
| Oct | 69° / 44° | 0.8 | 3.5 | 0.3 | 11.1 | 8.0 |
| Nov | 57° / 33° | 0.8 | 3.6 | 1.2 | 10.1 | 4.9 |
| Dec | 46° / 26° | 1.2 | 5.3 | 3.6 | 9.6 | 1.4 |
Cloud cover in April
The sky is clear or mostly clear about 53% of the time in April.
Beyond those clear spells, partly cloudy skies cover about 18% of April, with mostly cloudy or overcast conditions the remaining 29%. Skies tend to open up 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 (%) | 68 | 68 | 69 | 68 | 68 | 69 | 68 | 68 | 68 | 69 | 69 | 69 | 69 | 70 | 71 | 71 | 71 | 72 | 73 | 73 | 74 | 74 | 74 | 74 | 75 | 75 | 75 | 75 | 75 | 76 |
| Cloudier (%) | 32 | 32 | 31 | 32 | 32 | 31 | 32 | 32 | 32 | 31 | 31 | 31 | 31 | 30 | 29 | 29 | 29 | 28 | 27 | 27 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 24 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 68 | 32 |
| 2 | 68 | 32 |
| 3 | 69 | 31 |
| 4 | 68 | 32 |
| 5 | 68 | 32 |
| 6 | 69 | 31 |
| 7 | 68 | 32 |
| 8 | 68 | 32 |
| 9 | 68 | 32 |
| 10 | 69 | 31 |
| 11 | 69 | 31 |
| 12 | 69 | 31 |
| 13 | 69 | 31 |
| 14 | 70 | 30 |
| 15 | 71 | 29 |
| 16 | 71 | 29 |
| 17 | 71 | 29 |
| 18 | 72 | 28 |
| 19 | 73 | 27 |
| 20 | 73 | 27 |
| 21 | 74 | 26 |
| 22 | 74 | 26 |
| 23 | 74 | 26 |
| 24 | 74 | 26 |
| 25 | 75 | 25 |
| 26 | 75 | 25 |
| 27 | 75 | 25 |
| 28 | 75 | 25 |
| 29 | 75 | 25 |
| 30 | 76 | 24 |
Chance of precipitation in April
Grand Canyon gets around 0.8 in of rain and snow over 4.1 wet days in April. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable precipitation averages around 13% and peaks near 16% on the wettest days, and about 1 day brings snow. The odds ease toward the end of the month.
| 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 (%) | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 12 | 12 | 12 | 11 | 11 | 11 | 10 | 10 | 9 | 9 | 9 | 8 | 8 |
| Snow chance (%) | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 |
| Rain chance (%) | Snow chance (%) | |
|---|---|---|
| 1 | 16 | 6 |
| 2 | 16 | 6 |
| 3 | 16 | 6 |
| 4 | 16 | 6 |
| 5 | 16 | 6 |
| 6 | 16 | 6 |
| 7 | 16 | 6 |
| 8 | 16 | 6 |
| 9 | 16 | 5 |
| 10 | 16 | 5 |
| 11 | 15 | 5 |
| 12 | 15 | 5 |
| 13 | 14 | 4 |
| 14 | 14 | 4 |
| 15 | 14 | 4 |
| 16 | 13 | 4 |
| 17 | 13 | 3 |
| 18 | 12 | 3 |
| 19 | 12 | 3 |
| 20 | 12 | 3 |
| 21 | 11 | 2 |
| 22 | 11 | 2 |
| 23 | 11 | 2 |
| 24 | 10 | 2 |
| 25 | 10 | 2 |
| 26 | 9 | 1 |
| 27 | 9 | 1 |
| 28 | 9 | 1 |
| 29 | 8 | 1 |
| 30 | 8 | 1 |
Humidity in April
Most of April feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, April lands in the dry band about 100% 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 (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Dry (%) | |
|---|---|
| 1 | 100 |
| 2 | 100 |
| 3 | 100 |
| 4 | 100 |
| 5 | 100 |
| 6 | 100 |
| 7 | 100 |
| 8 | 100 |
| 9 | 100 |
| 10 | 100 |
| 11 | 100 |
| 12 | 100 |
| 13 | 100 |
| 14 | 100 |
| 15 | 100 |
| 16 | 100 |
| 17 | 100 |
| 18 | 100 |
| 19 | 100 |
| 20 | 100 |
| 21 | 100 |
| 22 | 100 |
| 23 | 100 |
| 24 | 100 |
| 25 | 100 |
| 26 | 100 |
| 27 | 100 |
| 28 | 100 |
| 29 | 100 |
| 30 | 100 |
Wind in April
Winds average 7 mph in April, the windiest month of the year.
Across April, daily wind ranges from about 7 mph on the calmest days to 7 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) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| 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 | 7 | calm |
| 2 | 7 | calm |
| 3 | 7 | calm |
| 4 | 7 | calm |
| 5 | 7 | calm |
| 6 | 7 | calm |
| 7 | 7 | calm |
| 8 | 7 | calm |
| 9 | 7 | calm |
| 10 | 7 | calm |
| 11 | 7 | calm |
| 12 | 7 | calm |
| 13 | 7 | calm |
| 14 | 7 | calm |
| 15 | 7 | calm |
| 16 | 7 | calm |
| 17 | 7 | calm |
| 18 | 7 | calm |
| 19 | 7 | calm |
| 20 | 7 | calm |
| 21 | 7 | calm |
| 22 | 7 | calm |
| 23 | 7 | calm |
| 24 | 7 | calm |
| 25 | 7 | calm |
| 26 | 7 | calm |
| 27 | 7 | calm |
| 28 | 7 | calm |
| 29 | 7 | calm |
| 30 | 7 | calm |
Sunrise & sunset in April
Daylight runs from about 12 h 18 min at the start of April to 13 h 24 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 66 minutes over April. Sunrise moves from 6:23 AM to 5:43 AM, and sunset from 6:43 PM to 7:08 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) | 12.3 | 12.4 | 12.4 | 12.5 | 12.5 | 12.5 | 12.6 | 12.6 | 12.7 | 12.7 | 12.7 | 12.8 | 12.8 | 12.8 | 12.9 | 12.9 | 13.0 | 13.0 | 13.0 | 13.1 | 13.1 | 13.1 | 13.2 | 13.2 | 13.2 | 13.3 | 13.3 | 13.3 | 13.4 | 13.4 |
| Sunrise (AM) | 6:23 | 6:21 | 6:20 | 6:19 | 6:17 | 6:16 | 6:14 | 6:13 | 6:11 | 6:10 | 6:08 | 6:07 | 6:06 | 6:04 | 6:03 | 6:01 | 6:00 | 5:59 | 5:57 | 5:56 | 5:55 | 5:53 | 5:52 | 5:51 | 5:50 | 5:48 | 5:47 | 5:46 | 5:45 | 5:43 |
| Sunset (PM) | 6:43 | 6:44 | 6:45 | 6:46 | 6:47 | 6:48 | 6:49 | 6:49 | 6:50 | 6:51 | 6:52 | 6:53 | 6:54 | 6:55 | 6:55 | 6:56 | 6:57 | 6:58 | 6:59 | 7:00 | 7:01 | 7:01 | 7:02 | 7:03 | 7:04 | 7:05 | 7:06 | 7:07 | 7:07 | 7:08 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.3 | 6:23 | 6:43 |
| 2 | 12.4 | 6:21 | 6:44 |
| 3 | 12.4 | 6:20 | 6:45 |
| 4 | 12.5 | 6:19 | 6:46 |
| 5 | 12.5 | 6:17 | 6:47 |
| 6 | 12.5 | 6:16 | 6:48 |
| 7 | 12.6 | 6:14 | 6:49 |
| 8 | 12.6 | 6:13 | 6:49 |
| 9 | 12.7 | 6:11 | 6:50 |
| 10 | 12.7 | 6:10 | 6:51 |
| 11 | 12.7 | 6:08 | 6:52 |
| 12 | 12.8 | 6:07 | 6:53 |
| 13 | 12.8 | 6:06 | 6:54 |
| 14 | 12.8 | 6:04 | 6:55 |
| 15 | 12.9 | 6:03 | 6:55 |
| 16 | 12.9 | 6:01 | 6:56 |
| 17 | 13.0 | 6:00 | 6:57 |
| 18 | 13.0 | 5:59 | 6:58 |
| 19 | 13.0 | 5:57 | 6:59 |
| 20 | 13.1 | 5:56 | 7:00 |
| 21 | 13.1 | 5:55 | 7:01 |
| 22 | 13.1 | 5:53 | 7:01 |
| 23 | 13.2 | 5:52 | 7:02 |
| 24 | 13.2 | 5:51 | 7:03 |
| 25 | 13.2 | 5:50 | 7:04 |
| 26 | 13.3 | 5:48 | 7:05 |
| 27 | 13.3 | 5:47 | 7:06 |
| 28 | 13.3 | 5:46 | 7:07 |
| 29 | 13.4 | 5:45 | 7:07 |
| 30 | 13.4 | 5:43 | 7:08 |
Solar energy in April
Average shortwave solar energy reaching the ground each day in April, about 7.2 kWh/m².
For context, solar energy here swings from a low near 2.96 kWh/m² to a high of 8.54 kWh/m² in June across the year — April's 7.2 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) | 6.6 | 6.6 | 6.7 | 6.7 | 6.8 | 6.8 | 6.9 | 6.9 | 7.0 | 7.0 | 7.0 | 7.1 | 7.1 | 7.2 | 7.2 | 7.3 | 7.3 | 7.3 | 7.3 | 7.4 | 7.4 | 7.4 | 7.5 | 7.5 | 7.5 | 7.6 | 7.6 | 7.6 | 7.7 | 7.7 |
| 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 | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.6 | Intense |
| 2 | 6.6 | Intense |
| 3 | 6.7 | Intense |
| 4 | 6.7 | Intense |
| 5 | 6.8 | Intense |
| 6 | 6.8 | Intense |
| 7 | 6.9 | Intense |
| 8 | 6.9 | Intense |
| 9 | 7.0 | Intense |
| 10 | 7.0 | Intense |
| 11 | 7.0 | Intense |
| 12 | 7.1 | Intense |
| 13 | 7.1 | Intense |
| 14 | 7.2 | Intense |
| 15 | 7.2 | Intense |
| 16 | 7.3 | Intense |
| 17 | 7.3 | Intense |
| 18 | 7.3 | Intense |
| 19 | 7.3 | Intense |
| 20 | 7.4 | Intense |
| 21 | 7.4 | Intense |
| 22 | 7.4 | Intense |
| 23 | 7.5 | Intense |
| 24 | 7.5 | Intense |
| 25 | 7.5 | Intense |
| 26 | 7.6 | Intense |
| 27 | 7.6 | Intense |
| 28 | 7.6 | Intense |
| 29 | 7.7 | Intense |
| 30 | 7.7 | Intense |
Is April a good time to visit Grand Canyon?
Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
April is one of the better times to visit Grand Canyon for general sightseeing.
What to pack for Grand Canyon in April
From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In April, Grand Canyon sees daytime highs around 65°F and nights near 40°F. Pack sun protection. Worth having: a warm layer. About 4 days see rain.
UV index in Grand Canyon in April
Clear-sky midday UV in April peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Grand Canyon peaks around July 17 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 3 (moderate).
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) | 4 | 4 | 6 | 6 | 9 | 11 | 12 | 11 | 9 | 6 | 4 | 3 |
| Level | Moderate | Moderate | High | High | Very high | Extreme | Extreme | Extreme | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 4 | Moderate |
| Mar | 6 | High |
| Apr | 6 | High |
| May | 9 | Very high |
| Jun | 11 | Extreme |
| Jul | 12 | Extreme |
| Aug | 11 | Extreme |
| Sep | 9 | Very high |
| Oct | 6 | High |
| Nov | 4 | Moderate |
| Dec | 3 | Moderate |
Where is Grand Canyon?
Grand Canyon sits at 36.1°N, 112.1°W, 0 ft above sea level, in United States. The nearest listed city is Flagstaff, 65 mi away.
Topography around Grand Canyon
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Grand Canyon.
Within 2 miles, the terrain around Grand Canyon has large variations in elevation — a maximum elevation change of 3,527 ft around an average of 6,434 ft above sea level; within 10 miles, very significant variations in elevation — a maximum elevation change of 5,873 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 8,550 ft.
The land around Grand Canyon is covered by trees (71%) within 2 miles, trees (45%) and grassland (21%) within 10 miles, and grassland (42%), trees (23%) and bare terrain (23%) 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 Grand Canyon (36.0544°, -112.1393°, elevation 0 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).