Olympia weather in April
In April, Olympia sees average daytime highs of 57°F and overnight lows near 43°F, with 4.7 in of precipitation across 14.9 wet days and about 13.3 hours of daylight. It is the 7th-warmest and 7th-wettest month of the year here.
Highs climb over the month, from about 55°F in the first days to 60°F by the end. The sky is clear or mostly clear about 14% 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 06 min by month's end. Set against the rest of the year, April is Olympia's 8th-clearest and 6th-windiest month. For the whole year in context, see Olympia's year-round climate.
- Daytime high
- 57°
- 7th warmest
- Overnight low
- 43°
- 6th coldest
- Precipitation
- 4.7 in
- 14.9 wet days
- Daylight
- 13 h 24 min
- 5:31 AM – 6:52 PM
- Cloud cover
- 73%
- 8th clearest
- Wind
- 6 mph
- 6th windiest
- Solar energy
- 4.35 kWh/m²
- Travel score
- 3.5
- out of 10
Olympia is capital city of the U.S. state of Washington and seat of Thurston County.
- Density
- 1,093/km²
- people per km²
- Founded
- 1859
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in April
Highs climb over the month, from about 55°F in the first days to 60°F by the end.
A typical April day in Olympia reaches about 57°F in the afternoon and slips back to 43°F overnight — a 14°F spread between the day's warmth and the night's chill. On most days the high lands between 50°F and 66°F. Set against its neighbours, April runs about 5°F warmer than March and about 6°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) | 54 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 56 | 56 | 56 | 56 | 56 | 56 | 57 | 57 | 57 | 57 | 58 | 58 | 58 | 58 | 59 | 59 | 59 | 59 | 60 | 60 | 60 | 60 |
| Avg low (°F) | 41 | 41 | 41 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 43 | 43 | 43 | 43 | 43 | 43 | 43 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 45 | 45 | 45 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 54 | 41 |
| 2 | 55 | 41 |
| 3 | 55 | 41 |
| 4 | 55 | 42 |
| 5 | 55 | 42 |
| 6 | 55 | 42 |
| 7 | 55 | 42 |
| 8 | 55 | 42 |
| 9 | 56 | 42 |
| 10 | 56 | 42 |
| 11 | 56 | 42 |
| 12 | 56 | 42 |
| 13 | 56 | 42 |
| 14 | 56 | 43 |
| 15 | 57 | 43 |
| 16 | 57 | 43 |
| 17 | 57 | 43 |
| 18 | 57 | 43 |
| 19 | 58 | 43 |
| 20 | 58 | 43 |
| 21 | 58 | 44 |
| 22 | 58 | 44 |
| 23 | 59 | 44 |
| 24 | 59 | 44 |
| 25 | 59 | 44 |
| 26 | 59 | 44 |
| 27 | 60 | 44 |
| 28 | 60 | 45 |
| 29 | 60 | 45 |
| 30 | 60 | 45 |
How April really feels in Olympia
Once humidity and wind are folded in, April 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.
April sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Olympia weather by month
How April compares with the rest of the year at a glance. April is the 7th-warmest and 7th-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 45° / 38° | 7.6 | 17.5 | 2.3 | 8.7 | 0.9 |
| Feb | 48° / 38° | 5.3 | 14.4 | 2 | 10 | 1.5 |
| Mar | 52° / 40° | 6.3 | 17.6 | 1.1 | 11.6 | 2.2 |
| Apr | 57° / 43° | 4.7 | 14.9 | 0.1 | 13.3 | 3.5 |
| May | 63° / 48° | 2.9 | 10.2 | 0 | 14.8 | 5.5 |
| Jun | 68° / 52° | 1.8 | 7.5 | 0 | 15.6 | 6.5 |
| Jul | 74° / 55° | 0.7 | 3.1 | 0 | 15.3 | 8.2 |
| Aug | 75° / 55° | 1.0 | 4 | 0 | 14 | 8.2 |
| Sep | 69° / 52° | 2.1 | 7 | 0 | 12.4 | 7.0 |
| Oct | 59° / 47° | 5.1 | 12.7 | 0 | 10.6 | 4.3 |
| Nov | 50° / 41° | 8.4 | 17.6 | 0.6 | 9.1 | 1.8 |
| Dec | 45° / 37° | 8.1 | 17.1 | 2.3 | 8.4 | 0.7 |
Cloud cover in April
The sky is clear or mostly clear about 14% of the time in April.
Beyond those clear spells, partly cloudy skies cover about 13% of April, with mostly cloudy or overcast conditions the remaining 73%.
| 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 (%) | 24 | 24 | 24 | 23 | 23 | 23 | 24 | 23 | 23 | 23 | 25 | 25 | 25 | 26 | 27 | 27 | 28 | 28 | 28 | 29 | 30 | 30 | 31 | 31 | 32 | 32 | 32 | 33 | 33 | 33 |
| Cloudier (%) | 76 | 76 | 76 | 77 | 77 | 77 | 76 | 77 | 77 | 77 | 75 | 75 | 75 | 74 | 73 | 73 | 72 | 72 | 72 | 71 | 70 | 70 | 69 | 69 | 68 | 68 | 68 | 67 | 67 | 67 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 24 | 76 |
| 2 | 24 | 76 |
| 3 | 24 | 76 |
| 4 | 23 | 77 |
| 5 | 23 | 77 |
| 6 | 23 | 77 |
| 7 | 24 | 76 |
| 8 | 23 | 77 |
| 9 | 23 | 77 |
| 10 | 23 | 77 |
| 11 | 25 | 75 |
| 12 | 25 | 75 |
| 13 | 25 | 75 |
| 14 | 26 | 74 |
| 15 | 27 | 73 |
| 16 | 27 | 73 |
| 17 | 28 | 72 |
| 18 | 28 | 72 |
| 19 | 28 | 72 |
| 20 | 29 | 71 |
| 21 | 30 | 70 |
| 22 | 30 | 70 |
| 23 | 31 | 69 |
| 24 | 31 | 69 |
| 25 | 32 | 68 |
| 26 | 32 | 68 |
| 27 | 32 | 68 |
| 28 | 33 | 67 |
| 29 | 33 | 67 |
| 30 | 33 | 67 |
Chance of precipitation in April
Olympia gets around 4.7 in of rain and snow over 14.9 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 50% and peaks near 55% on the wettest days, and about 0 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 (%) | 54 | 54 | 54 | 54 | 54 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 54 | 53 | 53 | 52 | 51 | 50 | 49 | 48 | 47 | 46 | 45 | 44 | 44 | 43 | 42 | 42 | 41 | 40 |
| Rain chance (%) | |
|---|---|
| 1 | 54 |
| 2 | 54 |
| 3 | 54 |
| 4 | 54 |
| 5 | 54 |
| 6 | 55 |
| 7 | 55 |
| 8 | 55 |
| 9 | 55 |
| 10 | 55 |
| 11 | 55 |
| 12 | 55 |
| 13 | 54 |
| 14 | 53 |
| 15 | 53 |
| 16 | 52 |
| 17 | 51 |
| 18 | 50 |
| 19 | 49 |
| 20 | 48 |
| 21 | 47 |
| 22 | 46 |
| 23 | 45 |
| 24 | 44 |
| 25 | 44 |
| 26 | 43 |
| 27 | 42 |
| 28 | 42 |
| 29 | 41 |
| 30 | 40 |
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 | 99 | 99 | 99 |
| Comfortable (%) | 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 | 1 | 1 | 1 |
| 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 | 100 | 0 |
| 19 | 100 | 0 |
| 20 | 100 | 0 |
| 21 | 100 | 0 |
| 22 | 100 | 0 |
| 23 | 100 | 0 |
| 24 | 100 | 0 |
| 25 | 100 | 0 |
| 26 | 100 | 0 |
| 27 | 100 | 0 |
| 28 | 99 | 1 |
| 29 | 99 | 1 |
| 30 | 99 | 1 |
Wind in April
Winds average 6 mph in April.
Across April, daily wind ranges from about 6 mph on the calmest days to 6 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) | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
| 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 | 6 | calm |
| 2 | 6 | calm |
| 3 | 6 | calm |
| 4 | 6 | calm |
| 5 | 6 | calm |
| 6 | 6 | calm |
| 7 | 6 | calm |
| 8 | 6 | calm |
| 9 | 6 | calm |
| 10 | 6 | calm |
| 11 | 6 | calm |
| 12 | 6 | calm |
| 13 | 6 | calm |
| 14 | 6 | calm |
| 15 | 6 | calm |
| 16 | 6 | calm |
| 17 | 6 | calm |
| 18 | 6 | calm |
| 19 | 6 | calm |
| 20 | 6 | calm |
| 21 | 6 | calm |
| 22 | 6 | calm |
| 23 | 6 | calm |
| 24 | 6 | calm |
| 25 | 6 | calm |
| 26 | 6 | calm |
| 27 | 6 | calm |
| 28 | 6 | calm |
| 29 | 6 | calm |
| 30 | 6 | calm |
Sunrise & sunset in April
Daylight runs from about 12 h 30 min at the start of April to 14 h 06 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 96 minutes over April. Sunrise moves from 6:01 AM to 5:06 AM, and sunset from 6:31 PM to 7:12 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 | 12.6 | 12.7 | 12.7 | 12.8 | 12.8 | 12.9 | 13.0 | 13.0 | 13.1 | 13.1 | 13.2 | 13.2 | 13.3 | 13.4 | 13.4 | 13.5 | 13.5 | 13.6 | 13.6 | 13.7 | 13.7 | 13.8 | 13.8 | 13.9 | 13.9 | 14.0 | 14.0 | 14.1 |
| Sunrise (AM) | 6:01 | 5:59 | 5:57 | 5:55 | 5:53 | 5:51 | 5:49 | 5:47 | 5:45 | 5:43 | 5:41 | 5:39 | 5:37 | 5:35 | 5:33 | 5:31 | 5:29 | 5:27 | 5:26 | 5:24 | 5:22 | 5:20 | 5:18 | 5:16 | 5:15 | 5:13 | 5:11 | 5:09 | 5:08 | 5:06 |
| Sunset (PM) | 6:31 | 6:33 | 6:34 | 6:36 | 6:37 | 6:38 | 6:40 | 6:41 | 6:43 | 6:44 | 6:45 | 6:47 | 6:48 | 6:50 | 6:51 | 6:52 | 6:54 | 6:55 | 6:57 | 6:58 | 6:59 | 7:01 | 7:02 | 7:04 | 7:05 | 7:06 | 7:08 | 7:09 | 7:11 | 7:12 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.5 | 6:01 | 6:31 |
| 2 | 12.6 | 5:59 | 6:33 |
| 3 | 12.6 | 5:57 | 6:34 |
| 4 | 12.7 | 5:55 | 6:36 |
| 5 | 12.7 | 5:53 | 6:37 |
| 6 | 12.8 | 5:51 | 6:38 |
| 7 | 12.8 | 5:49 | 6:40 |
| 8 | 12.9 | 5:47 | 6:41 |
| 9 | 13.0 | 5:45 | 6:43 |
| 10 | 13.0 | 5:43 | 6:44 |
| 11 | 13.1 | 5:41 | 6:45 |
| 12 | 13.1 | 5:39 | 6:47 |
| 13 | 13.2 | 5:37 | 6:48 |
| 14 | 13.2 | 5:35 | 6:50 |
| 15 | 13.3 | 5:33 | 6:51 |
| 16 | 13.4 | 5:31 | 6:52 |
| 17 | 13.4 | 5:29 | 6:54 |
| 18 | 13.5 | 5:27 | 6:55 |
| 19 | 13.5 | 5:26 | 6:57 |
| 20 | 13.6 | 5:24 | 6:58 |
| 21 | 13.6 | 5:22 | 6:59 |
| 22 | 13.7 | 5:20 | 7:01 |
| 23 | 13.7 | 5:18 | 7:02 |
| 24 | 13.8 | 5:16 | 7:04 |
| 25 | 13.8 | 5:15 | 7:05 |
| 26 | 13.9 | 5:13 | 7:06 |
| 27 | 13.9 | 5:11 | 7:08 |
| 28 | 14.0 | 5:09 | 7:09 |
| 29 | 14.0 | 5:08 | 7:11 |
| 30 | 14.1 | 5:06 | 7:12 |
Solar energy in April
Average shortwave solar energy reaching the ground each day in April, about 4.35 kWh/m².
For context, solar energy here swings from a low near 0.89 kWh/m² to a high of 6.29 kWh/m² in July across the year — April's 4.35 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) | 3.7 | 3.8 | 3.8 | 3.9 | 3.9 | 3.9 | 4.0 | 4.0 | 4.0 | 4.1 | 4.1 | 4.2 | 4.2 | 4.3 | 4.3 | 4.4 | 4.4 | 4.5 | 4.5 | 4.6 | 4.6 | 4.7 | 4.7 | 4.8 | 4.8 | 4.9 | 4.9 | 5.0 | 5.0 | 5.0 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Bright | 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 | 3.7 | Moderate |
| 2 | 3.8 | Moderate |
| 3 | 3.8 | Moderate |
| 4 | 3.9 | Moderate |
| 5 | 3.9 | Moderate |
| 6 | 3.9 | Moderate |
| 7 | 4.0 | Moderate |
| 8 | 4.0 | Moderate |
| 9 | 4.0 | Bright |
| 10 | 4.1 | Bright |
| 11 | 4.1 | Bright |
| 12 | 4.2 | Bright |
| 13 | 4.2 | Bright |
| 14 | 4.3 | Bright |
| 15 | 4.3 | Bright |
| 16 | 4.4 | Bright |
| 17 | 4.4 | Bright |
| 18 | 4.5 | Bright |
| 19 | 4.5 | Bright |
| 20 | 4.6 | Bright |
| 21 | 4.6 | Bright |
| 22 | 4.7 | Bright |
| 23 | 4.7 | Bright |
| 24 | 4.8 | Bright |
| 25 | 4.8 | Bright |
| 26 | 4.9 | Bright |
| 27 | 4.9 | Bright |
| 28 | 5.0 | Bright |
| 29 | 5.0 | Bright |
| 30 | 5.0 | Bright |
Hazard calendar for Olympia
In April, Olympia sits inside its rainy season season. The full year is below, with each hazard's peak months called out.
Olympia's rainy season runs October–April, when most of the year's rain falls.
Is April a good time to visit Olympia?
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 Olympia.
What to pack for Olympia in April
From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In April, Olympia sees daytime highs around 57°F and nights near 43°F. Pack rain gear. Worth having: a warm layer. About 15 days see rain.
UV index in Olympia in April
Clear-sky midday UV in April peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Olympia peaks around July 17 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 1 | 4 | 5 | 7 | 6 | 8 | 6 | 4 | 3 | 1 | 1 |
| Level | Low | Low | Moderate | Moderate | Very high | High | Very high | High | Moderate | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 1 | Low |
| Mar | 4 | Moderate |
| Apr | 5 | Moderate |
| May | 7 | Very high |
| Jun | 6 | High |
| Jul | 8 | Very high |
| Aug | 6 | High |
| Sep | 4 | Moderate |
| Oct | 3 | Moderate |
| Nov | 1 | Low |
| Dec | 1 | Low |
Where is Olympia?
Olympia sits at 47.0°N, 122.9°W, 95 ft above sea level, in United States. The nearest listed city is Tumwater, 2.5 mi away.
Topography around Olympia
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Olympia.
Within 2 miles, the terrain around Olympia has only modest variations in elevation — a maximum elevation change of 364 ft around an average of 135 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,241 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 6,555 ft.
The land around Olympia is covered by trees (57%) and artificial surfaces (22%) within 2 miles, trees (63%) within 10 miles, and trees (81%) 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 Olympia (47.0449°, -122.9017°, elevation 95 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).