Ölgii weather in April
In April, Ölgii sees average daytime highs of 7°C and overnight lows near -5°C, with 12 mm of precipitation across 3.6 wet days and about 13.4 hours of daylight. It is the 6th-warmest and 5th-wettest month of the year here.
Highs climb over the month, from about 3°C in the first days to 10°C by the end. The sky is clear or mostly clear about 39% of the time in April, and the air most often feels dry.
Daylight stretches from about 12 h 30 min at the start of April to 14 h 18 min by month's end. Set against the rest of the year, April is Ölgii's 9th-clearest and 2nd-windiest month. For the whole year in context, see Ölgii's year-round climate.
- Daytime high
- 7°
- 6th warmest
- Overnight low
- -5°
- 7th coldest
- Precipitation
- 12 mm
- 3.6 wet days
- Daylight
- 13 h 24 min
- 6:17 AM – 7:44 PM
- Cloud cover
- 51%
- 9th clearest
- Wind
- 11 km/h
- 2nd windiest
- Solar energy
- 6.13 kWh/m²
- Travel score
- 1.1
- out of 10
Ölgii is capital-city of the Bayan-Ölgii aimag in Mongolia.
- Density
- 1,893/km²
- people per km²
- Founded
- 1940
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in April
Highs climb over the month, from about 3°C in the first days to 10°C by the end.
A typical April day in Ölgii reaches about 7°C in the afternoon and slips back to -5°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between -0°C and 13°C. Set against its neighbours, April runs about 10°C warmer than March and about 7°C 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 (°C) | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 |
| Avg low (°C) | -10 | -10 | -9 | -9 | -9 | -8 | -8 | -8 | -7 | -7 | -7 | -6 | -6 | -6 | -5 | -5 | -5 | -4 | -4 | -4 | -3 | -3 | -3 | -2 | -2 | -2 | -2 | -1 | -1 | -1 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 3 | -10 |
| 2 | 3 | -10 |
| 3 | 3 | -9 |
| 4 | 3 | -9 |
| 5 | 4 | -9 |
| 6 | 4 | -8 |
| 7 | 4 | -8 |
| 8 | 5 | -8 |
| 9 | 5 | -7 |
| 10 | 5 | -7 |
| 11 | 5 | -7 |
| 12 | 6 | -6 |
| 13 | 6 | -6 |
| 14 | 6 | -6 |
| 15 | 7 | -5 |
| 16 | 7 | -5 |
| 17 | 7 | -5 |
| 18 | 8 | -4 |
| 19 | 8 | -4 |
| 20 | 8 | -4 |
| 21 | 8 | -3 |
| 22 | 9 | -3 |
| 23 | 9 | -3 |
| 24 | 9 | -2 |
| 25 | 9 | -2 |
| 26 | 10 | -2 |
| 27 | 10 | -2 |
| 28 | 10 | -1 |
| 29 | 10 | -1 |
| 30 | 10 | -1 |
How April really feels in Ölgii
Once humidity and wind are folded in, April averages 0 days that feel above 32°C and 30 that feel at or below 0°C — 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.
Ölgii weather by month
How April compares with the rest of the year at a glance. April is the 6th-warmest and 5th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | -16° / -28° | 0 | 0.1 | 0.2 | 8.5 | 0.0 |
| Feb | -11° / -24° | 1 | 0.5 | 0.6 | 9.8 | 0.0 |
| Mar | -3° / -16° | 6 | 1.7 | 2.1 | 11.6 | 0.0 |
| Apr | 7° / -5° | 12 | 3.6 | 2.7 | 13.4 | 1.1 |
| May | 13° / 2° | 24 | 5.2 | 2.2 | 15 | 4.3 |
| Jun | 19° / 8° | 37 | 8.3 | 0.5 | 15.9 | 6.2 |
| Jul | 21° / 10° | 46 | 9.7 | 0 | 15.6 | 6.5 |
| Aug | 19° / 7° | 33 | 7.1 | 0.1 | 14.2 | 6.6 |
| Sep | 13° / 1° | 12 | 3.5 | 1.2 | 12.4 | 4.1 |
| Oct | 4° / -8° | 5 | 1.8 | 1.6 | 10.5 | 0.4 |
| Nov | -7° / -18° | 3 | 1 | 1.3 | 8.9 | 0.0 |
| Dec | -15° / -25° | 1 | 0.2 | 0.4 | 8.1 | 0.0 |
Cloud cover in April
The sky is clear or mostly clear about 39% 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 43%. 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 (%) | 60 | 60 | 60 | 59 | 59 | 59 | 58 | 58 | 57 | 57 | 56 | 56 | 56 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 56 | 56 | 56 | 57 | 57 | 58 | 57 | 58 |
| Cloudier (%) | 40 | 40 | 40 | 41 | 41 | 41 | 42 | 42 | 43 | 43 | 44 | 44 | 44 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 44 | 44 | 44 | 43 | 43 | 42 | 43 | 42 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 60 | 40 |
| 2 | 60 | 40 |
| 3 | 60 | 40 |
| 4 | 59 | 41 |
| 5 | 59 | 41 |
| 6 | 59 | 41 |
| 7 | 58 | 42 |
| 8 | 58 | 42 |
| 9 | 57 | 43 |
| 10 | 57 | 43 |
| 11 | 56 | 44 |
| 12 | 56 | 44 |
| 13 | 56 | 44 |
| 14 | 55 | 45 |
| 15 | 55 | 45 |
| 16 | 55 | 45 |
| 17 | 55 | 45 |
| 18 | 55 | 45 |
| 19 | 55 | 45 |
| 20 | 55 | 45 |
| 21 | 55 | 45 |
| 22 | 55 | 45 |
| 23 | 56 | 44 |
| 24 | 56 | 44 |
| 25 | 56 | 44 |
| 26 | 57 | 43 |
| 27 | 57 | 43 |
| 28 | 58 | 42 |
| 29 | 57 | 43 |
| 30 | 58 | 42 |
Chance of precipitation in April
Ölgii gets around 12 mm of rain and snow over 3.6 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 12% and peaks near 13% on the wettest days, and about 3 days bring snow.
| 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 (%) | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 13 | 13 |
| Snow chance (%) | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| Rain chance (%) | Snow chance (%) | |
|---|---|---|
| 1 | 10 | 10 |
| 2 | 10 | 10 |
| 3 | 10 | 10 |
| 4 | 10 | 10 |
| 5 | 10 | 10 |
| 6 | 11 | 10 |
| 7 | 11 | 10 |
| 8 | 11 | 10 |
| 9 | 12 | 10 |
| 10 | 12 | 10 |
| 11 | 12 | 10 |
| 12 | 12 | 10 |
| 13 | 13 | 9 |
| 14 | 13 | 9 |
| 15 | 13 | 9 |
| 16 | 13 | 9 |
| 17 | 13 | 8 |
| 18 | 13 | 8 |
| 19 | 13 | 8 |
| 20 | 13 | 8 |
| 21 | 13 | 8 |
| 22 | 13 | 7 |
| 23 | 13 | 7 |
| 24 | 13 | 7 |
| 25 | 12 | 7 |
| 26 | 12 | 7 |
| 27 | 12 | 7 |
| 28 | 12 | 7 |
| 29 | 13 | 7 |
| 30 | 13 | 7 |
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 11 km/h in April.
Across April, daily wind ranges from about 10 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 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
| 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 (km/h) | Feels | |
|---|---|---|
| 1 | 10 | calm |
| 2 | 10 | calm |
| 3 | 10 | calm |
| 4 | 10 | calm |
| 5 | 10 | calm |
| 6 | 10 | calm |
| 7 | 10 | calm |
| 8 | 10 | calm |
| 9 | 10 | calm |
| 10 | 11 | calm |
| 11 | 11 | calm |
| 12 | 11 | calm |
| 13 | 11 | calm |
| 14 | 11 | calm |
| 15 | 11 | calm |
| 16 | 11 | calm |
| 17 | 11 | calm |
| 18 | 11 | calm |
| 19 | 11 | calm |
| 20 | 11 | calm |
| 21 | 11 | calm |
| 22 | 11 | calm |
| 23 | 11 | calm |
| 24 | 12 | calm |
| 25 | 12 | calm |
| 26 | 12 | calm |
| 27 | 12 | calm |
| 28 | 12 | calm |
| 29 | 12 | calm |
| 30 | 12 | calm |
Sunrise & sunset in April
Daylight runs from about 12 h 30 min at the start of April to 14 h 18 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 108 minutes over April. Sunrise moves from 6:49 AM to 5:50 AM, and sunset from 7:21 PM to 8:05 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) | 12.5 | 12.6 | 12.7 | 12.7 | 12.8 | 12.8 | 12.9 | 13.0 | 13.0 | 13.1 | 13.1 | 13.2 | 13.3 | 13.3 | 13.4 | 13.4 | 13.5 | 13.6 | 13.6 | 13.7 | 13.7 | 13.8 | 13.9 | 13.9 | 14.0 | 14.0 | 14.1 | 14.1 | 14.2 | 14.3 |
| Sunrise (AM) | 6:49 | 6:46 | 6:44 | 6:42 | 6:40 | 6:38 | 6:36 | 6:34 | 6:31 | 6:29 | 6:27 | 6:25 | 6:23 | 6:21 | 6:19 | 6:17 | 6:15 | 6:13 | 6:11 | 6:09 | 6:07 | 6:05 | 6:03 | 6:01 | 5:59 | 5:57 | 5:55 | 5:54 | 5:52 | 5:50 |
| Sunset (PM) | 7:21 | 7:23 | 7:24 | 7:26 | 7:27 | 7:29 | 7:30 | 7:32 | 7:33 | 7:35 | 7:36 | 7:38 | 7:39 | 7:41 | 7:42 | 7:44 | 7:45 | 7:47 | 7:48 | 7:50 | 7:51 | 7:53 | 7:54 | 7:56 | 7:57 | 7:59 | 8:01 | 8:02 | 8:04 | 8:05 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.5 | 6:49 | 7:21 |
| 2 | 12.6 | 6:46 | 7:23 |
| 3 | 12.7 | 6:44 | 7:24 |
| 4 | 12.7 | 6:42 | 7:26 |
| 5 | 12.8 | 6:40 | 7:27 |
| 6 | 12.8 | 6:38 | 7:29 |
| 7 | 12.9 | 6:36 | 7:30 |
| 8 | 13.0 | 6:34 | 7:32 |
| 9 | 13.0 | 6:31 | 7:33 |
| 10 | 13.1 | 6:29 | 7:35 |
| 11 | 13.1 | 6:27 | 7:36 |
| 12 | 13.2 | 6:25 | 7:38 |
| 13 | 13.3 | 6:23 | 7:39 |
| 14 | 13.3 | 6:21 | 7:41 |
| 15 | 13.4 | 6:19 | 7:42 |
| 16 | 13.4 | 6:17 | 7:44 |
| 17 | 13.5 | 6:15 | 7:45 |
| 18 | 13.6 | 6:13 | 7:47 |
| 19 | 13.6 | 6:11 | 7:48 |
| 20 | 13.7 | 6:09 | 7:50 |
| 21 | 13.7 | 6:07 | 7:51 |
| 22 | 13.8 | 6:05 | 7:53 |
| 23 | 13.9 | 6:03 | 7:54 |
| 24 | 13.9 | 6:01 | 7:56 |
| 25 | 14.0 | 5:59 | 7:57 |
| 26 | 14.0 | 5:57 | 7:59 |
| 27 | 14.1 | 5:55 | 8:01 |
| 28 | 14.1 | 5:54 | 8:02 |
| 29 | 14.2 | 5:52 | 8:04 |
| 30 | 14.3 | 5:50 | 8:05 |
Solar energy in April
Average shortwave solar energy reaching the ground each day in April, about 6.13 kWh/m².
For context, solar energy here swings from a low near 1.43 kWh/m² to a high of 7.1 kWh/m² in June across the year — April's 6.13 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) | 5.5 | 5.6 | 5.6 | 5.7 | 5.7 | 5.8 | 5.8 | 5.8 | 5.9 | 5.9 | 6.0 | 6.0 | 6.0 | 6.1 | 6.1 | 6.2 | 6.2 | 6.2 | 6.3 | 6.3 | 6.3 | 6.4 | 6.4 | 6.5 | 6.5 | 6.5 | 6.6 | 6.6 | 6.7 | 6.7 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | 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 | 5.5 | Bright |
| 2 | 5.6 | Bright |
| 3 | 5.6 | Bright |
| 4 | 5.7 | Bright |
| 5 | 5.7 | Bright |
| 6 | 5.8 | Bright |
| 7 | 5.8 | Bright |
| 8 | 5.8 | Bright |
| 9 | 5.9 | Bright |
| 10 | 5.9 | Bright |
| 11 | 6.0 | Bright |
| 12 | 6.0 | Intense |
| 13 | 6.0 | Intense |
| 14 | 6.1 | Intense |
| 15 | 6.1 | Intense |
| 16 | 6.2 | Intense |
| 17 | 6.2 | Intense |
| 18 | 6.2 | Intense |
| 19 | 6.3 | Intense |
| 20 | 6.3 | Intense |
| 21 | 6.3 | Intense |
| 22 | 6.4 | Intense |
| 23 | 6.4 | Intense |
| 24 | 6.5 | Intense |
| 25 | 6.5 | Intense |
| 26 | 6.5 | Intense |
| 27 | 6.6 | Intense |
| 28 | 6.6 | Intense |
| 29 | 6.7 | Intense |
| 30 | 6.7 | Intense |
Is April a good time to visit Ölgii?
Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
April is a weaker month for outdoor sightseeing in Ölgii.
What to pack for Ölgii in April
From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In April, Ölgii sees daytime highs around 7°C and nights near -5°C. Pack a warm layer, a heavy coat and sun protection. About 4 days see rain.
UV index in Ölgii 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 Ölgii peaks around July 17 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 3 | 6 | 9 | 8 | 9 | 8 | 5 | 3 | 1 | 1 |
| Level | Low | Low | Moderate | High | Very high | Very high | Very high | Very high | Moderate | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Low |
| Mar | 3 | Moderate |
| Apr | 6 | High |
| May | 9 | Very high |
| Jun | 8 | Very high |
| Jul | 9 | Very high |
| Aug | 8 | Very high |
| Sep | 5 | Moderate |
| Oct | 3 | Moderate |
| Nov | 1 | Low |
| Dec | 1 | Low |
Where is Ölgii?
Ölgii sits at 49.0°N, 90.0°E, 1,715 m above sea level, in Mongolia. The nearest listed city is Khovd, 164 km away.
Topography around Ölgii
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ölgii.
Within 3 km, the terrain around Ölgii has significant variations in elevation — a maximum elevation change of 304 m around an average of 1,734 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,132 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,848 m.
The land around Ölgii is covered by bare terrain (53%) and grassland (30%) within 3 km, grassland (75%) and bare terrain (23%) within 16 km, and grassland (65%) and bare terrain (25%) within 80 km.
Mongolia travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / E / F
- 220 V · 50 Hz
- Prices
- ≈ 34% of US
- price level, 2025
- GDP per capita
- $7,108
- 2025
- Happiness
- 5.9 / 10
- World Happiness, 2025
- Safe drinking water
- 43%
- of population, 2024
- Homicide rate
- 5.9
- per 100k, 2023
- Road deaths
- 21
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Very low
- EF EPI 447
- 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 Ölgii (48.9683°, 89.9625°, elevation 1,715 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).