Upington weather in September
In September, Upington sees average daytime highs of 27°C and overnight lows near 11°C, with 5 mm of rain across 0.9 wet days and about 11.8 hours of daylight. It is the 8th-warmest and 10th-wettest month of the year here.
Highs climb over the month, from about 25°C in the first days to 28°C by the end. The sky is clear or mostly clear about 76% of the time in September, and the air most often feels dry.
Daylight stretches from about 11 h 24 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is Upington's 4th-clearest and 5th-windiest month. For the whole year in context, see Upington's year-round climate.
- Daytime high
- 27°
- 8th warmest
- Overnight low
- 11°
- 5th coldest
- Rainfall
- 5 mm
- 0.9 wet days
- Daylight
- 11 h 48 min
- 6:34 AM – 6:24 PM
- Cloud cover
- 21%
- 4th clearest
- Wind
- 14 km/h
- 5th windiest
- Solar energy
- 6.25 kWh/m²
- Travel score
- 8.6
- out of 10
Upington is town in South Africa.
- Density
- 123/km²
- people per km²
- Founded
- 1873
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in September
Highs climb over the month, from about 25°C in the first days to 28°C by the end.
A typical September day in Upington reaches about 27°C in the afternoon and slips back to 11°C overnight — a 16°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 33°C. Set against its neighbours, September runs about 4°C warmer than August and about 3°C cooler 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 (°C) | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
| Avg low (°C) | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 25 | 9 |
| 2 | 25 | 9 |
| 3 | 25 | 10 |
| 4 | 26 | 10 |
| 5 | 26 | 10 |
| 6 | 26 | 10 |
| 7 | 26 | 10 |
| 8 | 26 | 10 |
| 9 | 26 | 11 |
| 10 | 26 | 11 |
| 11 | 27 | 11 |
| 12 | 27 | 11 |
| 13 | 27 | 11 |
| 14 | 27 | 11 |
| 15 | 27 | 11 |
| 16 | 27 | 12 |
| 17 | 27 | 12 |
| 18 | 27 | 12 |
| 19 | 27 | 12 |
| 20 | 27 | 12 |
| 21 | 27 | 12 |
| 22 | 27 | 12 |
| 23 | 28 | 12 |
| 24 | 28 | 12 |
| 25 | 28 | 12 |
| 26 | 28 | 13 |
| 27 | 28 | 13 |
| 28 | 28 | 13 |
| 29 | 28 | 13 |
| 30 | 28 | 13 |
How September really feels in Upington
Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 0 that feel at or below 0°C — 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.
Upington weather by month
How September compares with the rest of the year at a glance. September is the 8th-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 | 35° / 22° | 35 | 5.4 | 13.6 | 2.9 |
| Feb | 35° / 22° | 31 | 6.4 | 13 | 3.2 |
| Mar | 33° / 20° | 36 | 5.5 | 12.2 | 4.5 |
| Apr | 28° / 15° | 25 | 3.6 | 11.3 | 7.4 |
| May | 24° / 10° | 12 | 1.8 | 10.6 | 8.9 |
| Jun | 21° / 6° | 5 | 0.8 | 10.2 | 8.6 |
| Jul | 21° / 5° | 4 | 0.9 | 10.4 | 8.7 |
| Aug | 23° / 7° | 3 | 0.6 | 11 | 9.2 |
| Sep | 27° / 11° | 5 | 0.9 | 11.8 | 8.6 |
| Oct | 30° / 15° | 14 | 2.3 | 12.7 | 6.4 |
| Nov | 32° / 18° | 13 | 2.4 | 13.4 | 4.9 |
| Dec | 35° / 20° | 27 | 3.9 | 13.8 | 3.4 |
Cloud cover in September
The sky is clear or mostly clear about 76% of the time in September.
Beyond those clear spells, partly cloudy skies cover about 10% of September, with mostly cloudy or overcast conditions the remaining 14%. 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 (%) | 90 | 90 | 90 | 89 | 89 | 88 | 88 | 87 | 87 | 86 | 85 | 85 | 85 | 84 | 84 | 84 | 84 | 84 | 84 | 83 | 83 | 84 | 84 | 84 | 84 | 85 | 85 | 85 | 85 | 86 |
| Cloudier (%) | 10 | 10 | 10 | 11 | 11 | 12 | 12 | 13 | 13 | 14 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 14 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 90 | 10 |
| 2 | 90 | 10 |
| 3 | 90 | 10 |
| 4 | 89 | 11 |
| 5 | 89 | 11 |
| 6 | 88 | 12 |
| 7 | 88 | 12 |
| 8 | 87 | 13 |
| 9 | 87 | 13 |
| 10 | 86 | 14 |
| 11 | 85 | 15 |
| 12 | 85 | 15 |
| 13 | 85 | 15 |
| 14 | 84 | 16 |
| 15 | 84 | 16 |
| 16 | 84 | 16 |
| 17 | 84 | 16 |
| 18 | 84 | 16 |
| 19 | 84 | 16 |
| 20 | 83 | 17 |
| 21 | 83 | 17 |
| 22 | 84 | 16 |
| 23 | 84 | 16 |
| 24 | 84 | 16 |
| 25 | 84 | 16 |
| 26 | 85 | 15 |
| 27 | 85 | 15 |
| 28 | 85 | 15 |
| 29 | 85 | 15 |
| 30 | 86 | 14 |
Chance of precipitation in September
Upington gets around 5 mm of rain over 0.9 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 3% and peaks near 6% 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 (%) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 |
| Rain chance (%) | |
|---|---|
| 1 | 2 |
| 2 | 2 |
| 3 | 2 |
| 4 | 2 |
| 5 | 2 |
| 6 | 2 |
| 7 | 2 |
| 8 | 2 |
| 9 | 2 |
| 10 | 2 |
| 11 | 3 |
| 12 | 3 |
| 13 | 3 |
| 14 | 3 |
| 15 | 3 |
| 16 | 4 |
| 17 | 4 |
| 18 | 4 |
| 19 | 4 |
| 20 | 4 |
| 21 | 4 |
| 22 | 4 |
| 23 | 5 |
| 24 | 5 |
| 25 | 5 |
| 26 | 5 |
| 27 | 5 |
| 28 | 5 |
| 29 | 5 |
| 30 | 6 |
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 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 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 98 | 98 | 98 | 98 | 98 | 98 | 98 |
| Comfortable (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 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 | 99 | 1 |
| 11 | 99 | 1 |
| 12 | 99 | 1 |
| 13 | 99 | 1 |
| 14 | 99 | 1 |
| 15 | 99 | 1 |
| 16 | 99 | 1 |
| 17 | 99 | 1 |
| 18 | 99 | 1 |
| 19 | 99 | 1 |
| 20 | 99 | 1 |
| 21 | 99 | 1 |
| 22 | 99 | 1 |
| 23 | 99 | 1 |
| 24 | 98 | 2 |
| 25 | 98 | 2 |
| 26 | 98 | 2 |
| 27 | 98 | 2 |
| 28 | 98 | 2 |
| 29 | 98 | 2 |
| 30 | 98 | 2 |
Wind in September
Winds average 14 km/h in September.
Across September, daily wind ranges from about 13 km/h on the calmest days to 14 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) | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 13 | light breeze |
| 2 | 13 | light breeze |
| 3 | 13 | light breeze |
| 4 | 13 | light breeze |
| 5 | 13 | light breeze |
| 6 | 13 | light breeze |
| 7 | 13 | light breeze |
| 8 | 14 | light breeze |
| 9 | 14 | light breeze |
| 10 | 14 | light breeze |
| 11 | 14 | light breeze |
| 12 | 14 | light breeze |
| 13 | 14 | light breeze |
| 14 | 14 | light breeze |
| 15 | 14 | light breeze |
| 16 | 14 | light breeze |
| 17 | 14 | light breeze |
| 18 | 14 | light breeze |
| 19 | 14 | light breeze |
| 20 | 14 | light breeze |
| 21 | 14 | light breeze |
| 22 | 14 | light breeze |
| 23 | 14 | light breeze |
| 24 | 14 | light breeze |
| 25 | 14 | light breeze |
| 26 | 14 | light breeze |
| 27 | 14 | light breeze |
| 28 | 14 | light breeze |
| 29 | 14 | light breeze |
| 30 | 14 | light breeze |
Sunrise & sunset in September
Daylight runs from about 11 h 24 min at the start of September to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 48 minutes over September. Sunrise moves from 6:53 AM to 6:17 AM, and sunset from 6:17 PM to 6:31 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) | 11.4 | 11.4 | 11.5 | 11.5 | 11.5 | 11.5 | 11.6 | 11.6 | 11.6 | 11.7 | 11.7 | 11.7 | 11.7 | 11.8 | 11.8 | 11.8 | 11.9 | 11.9 | 11.9 | 11.9 | 12.0 | 12.0 | 12.0 | 12.1 | 12.1 | 12.1 | 12.2 | 12.2 | 12.2 | 12.2 |
| Sunrise (AM) | 6:53 | 6:51 | 6:50 | 6:49 | 6:48 | 6:47 | 6:45 | 6:44 | 6:43 | 6:42 | 6:41 | 6:39 | 6:38 | 6:37 | 6:36 | 6:34 | 6:33 | 6:32 | 6:31 | 6:29 | 6:28 | 6:27 | 6:26 | 6:24 | 6:23 | 6:22 | 6:21 | 6:19 | 6:18 | 6:17 |
| Sunset (PM) | 6:17 | 6:17 | 6:18 | 6:18 | 6:19 | 6:19 | 6:20 | 6:20 | 6:21 | 6:21 | 6:22 | 6:22 | 6:23 | 6:23 | 6:24 | 6:24 | 6:25 | 6:25 | 6:26 | 6:26 | 6:27 | 6:27 | 6:28 | 6:28 | 6:29 | 6:29 | 6:30 | 6:30 | 6:31 | 6:31 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.4 | 6:53 | 6:17 |
| 2 | 11.4 | 6:51 | 6:17 |
| 3 | 11.5 | 6:50 | 6:18 |
| 4 | 11.5 | 6:49 | 6:18 |
| 5 | 11.5 | 6:48 | 6:19 |
| 6 | 11.5 | 6:47 | 6:19 |
| 7 | 11.6 | 6:45 | 6:20 |
| 8 | 11.6 | 6:44 | 6:20 |
| 9 | 11.6 | 6:43 | 6:21 |
| 10 | 11.7 | 6:42 | 6:21 |
| 11 | 11.7 | 6:41 | 6:22 |
| 12 | 11.7 | 6:39 | 6:22 |
| 13 | 11.7 | 6:38 | 6:23 |
| 14 | 11.8 | 6:37 | 6:23 |
| 15 | 11.8 | 6:36 | 6:24 |
| 16 | 11.8 | 6:34 | 6:24 |
| 17 | 11.9 | 6:33 | 6:25 |
| 18 | 11.9 | 6:32 | 6:25 |
| 19 | 11.9 | 6:31 | 6:26 |
| 20 | 11.9 | 6:29 | 6:26 |
| 21 | 12.0 | 6:28 | 6:27 |
| 22 | 12.0 | 6:27 | 6:27 |
| 23 | 12.0 | 6:26 | 6:28 |
| 24 | 12.1 | 6:24 | 6:28 |
| 25 | 12.1 | 6:23 | 6:29 |
| 26 | 12.1 | 6:22 | 6:29 |
| 27 | 12.2 | 6:21 | 6:30 |
| 28 | 12.2 | 6:19 | 6:30 |
| 29 | 12.2 | 6:18 | 6:31 |
| 30 | 12.2 | 6:17 | 6:31 |
Solar energy in September
Average shortwave solar energy reaching the ground each day in September, about 6.25 kWh/m².
For context, solar energy here swings from a low near 3.65 kWh/m² to a high of 8.6 kWh/m² in December across the year — September's 6.25 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) | 5.6 | 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 | 6.4 | 6.4 | 6.5 | 6.5 | 6.5 | 6.6 | 6.7 | 6.7 | 6.7 | 6.8 | 6.8 | 6.9 |
| Level | 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 | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.6 | Bright |
| 2 | 5.7 | Bright |
| 3 | 5.7 | Bright |
| 4 | 5.8 | Bright |
| 5 | 5.8 | Bright |
| 6 | 5.8 | Bright |
| 7 | 5.9 | Bright |
| 8 | 5.9 | Bright |
| 9 | 6.0 | Bright |
| 10 | 6.0 | Intense |
| 11 | 6.0 | Intense |
| 12 | 6.1 | Intense |
| 13 | 6.1 | Intense |
| 14 | 6.2 | Intense |
| 15 | 6.2 | Intense |
| 16 | 6.2 | Intense |
| 17 | 6.3 | Intense |
| 18 | 6.3 | Intense |
| 19 | 6.4 | Intense |
| 20 | 6.4 | Intense |
| 21 | 6.5 | Intense |
| 22 | 6.5 | Intense |
| 23 | 6.5 | Intense |
| 24 | 6.6 | Intense |
| 25 | 6.7 | Intense |
| 26 | 6.7 | Intense |
| 27 | 6.7 | Intense |
| 28 | 6.8 | Intense |
| 29 | 6.8 | Intense |
| 30 | 6.9 | Intense |
Is September a good time to visit Upington?
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 Upington for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Upington in September
From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In September, Upington sees daytime highs around 27°C and nights near 11°C. Pack sun protection. Worth having: light clothes.
UV index in Upington in September
Clear-sky midday UV in September peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Upington peaks around January 15 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 4 (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) | 15 | 13 | 11 | 8 | 6 | 4 | 5 | 6 | 9 | 11 | 13 | 14 |
| Level | Extreme | Extreme | Extreme | Very high | High | Moderate | Moderate | High | Very high | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 13 | Extreme |
| Mar | 11 | Extreme |
| Apr | 8 | Very high |
| May | 6 | High |
| Jun | 4 | Moderate |
| Jul | 5 | Moderate |
| Aug | 6 | High |
| Sep | 9 | Very high |
| Oct | 11 | Extreme |
| Nov | 13 | Extreme |
| Dec | 14 | Extreme |
Where is Upington?
Upington sits at 28.4°S, 21.3°E, 808 m above sea level, in South Africa. The nearest listed city is Postmasburg, 177 km away.
Topography around Upington
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Upington.
Within 3 km, the terrain around Upington has only modest variations in elevation — a maximum elevation change of 60 m around an average of 804 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 232 m; within 80 km, significant variations in elevation — a maximum elevation change of 584 m.
The land around Upington is covered by artificial surfaces (27%), shrubs (26%) and grassland (20%) within 3 km, grassland (53%) and shrubs (29%) within 16 km, and grassland (49%) and shrubs (38%) within 80 km.
South Africa travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / M / N
- 230 V · 50 Hz
- Prices
- ≈ 41% of US
- price level, 2025
- GDP per capita
- $6,598
- 2025
- Happiness
- 5.0 / 10
- World Happiness, 2025
- Safe drinking water
- 68%
- of population, 2024
- Homicide rate
- 43.7
- per 100k, 2022
- Road deaths
- 22.2
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Very high
- EF EPI 602
- 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 Upington (-28.4478°, 21.2561°, elevation 808 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).