Clearlake weather in February
In February, Clearlake sees average daytime highs of 55°F and overnight lows near 40°F, with 5.9 in of precipitation across 9.4 wet days and about 10.5 hours of daylight. It is the 10th-warmest and 3rd-wettest month of the year here.
Day-to-day highs hold fairly steady near 55°F through the month. The sky is clear or mostly clear about 31% of the time in February, and the air most often feels dry.
Daylight stretches from about 10 hours at the start of February to 11 hours by month's end. Set against the rest of the year, February is Clearlake's 11th-clearest and 5th-windiest month. For the whole year in context, see Clearlake's year-round climate.
- Daytime high
- 55°
- 10th warmest
- Overnight low
- 40°
- 3rd coldest
- Precipitation
- 5.9 in
- 9.4 wet days
- Daylight
- 10 h 30 min
- 7:11 AM – 5:40 PM
- Cloud cover
- 60%
- 11th clearest
- Wind
- 4 mph
- 5th windiest
- Solar energy
- 3.14 kWh/m²
- Travel score
- 3.6
- out of 10
Clearlake is city in Lake County, California, United States.
- Density
- 554/km²
- people per km²
- Founded
- 1980
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in February
Day-to-day highs hold fairly steady near 55°F through the month.
A typical February day in Clearlake reaches about 55°F in the afternoon and slips back to 40°F overnight — a 15°F spread between the day's warmth and the night's chill. On most days the high lands between 46°F and 66°F. Set against its neighbours, February runs about 3°F warmer than January and about 4°F cooler than March.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 56 | 56 | 56 |
| Avg low (°F) | 39 | 39 | 39 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 55 | 39 |
| 2 | 55 | 39 |
| 3 | 55 | 39 |
| 4 | 55 | 40 |
| 5 | 55 | 40 |
| 6 | 55 | 40 |
| 7 | 55 | 40 |
| 8 | 55 | 40 |
| 9 | 55 | 40 |
| 10 | 55 | 40 |
| 11 | 55 | 40 |
| 12 | 55 | 40 |
| 13 | 55 | 40 |
| 14 | 55 | 40 |
| 15 | 55 | 40 |
| 16 | 55 | 40 |
| 17 | 55 | 40 |
| 18 | 55 | 40 |
| 19 | 55 | 40 |
| 20 | 55 | 40 |
| 21 | 55 | 40 |
| 22 | 55 | 40 |
| 23 | 55 | 40 |
| 24 | 55 | 40 |
| 25 | 55 | 40 |
| 26 | 56 | 40 |
| 27 | 56 | 40 |
| 28 | 56 | 40 |
Clearlake weather by month
How February compares with the rest of the year at a glance. February is the 10th-warmest and 3rd-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 53° / 38° | 6.1 | 10.9 | 1.4 | 9.6 | 2.8 |
| Feb | 55° / 40° | 5.9 | 9.4 | 1.7 | 10.5 | 3.6 |
| Mar | 59° / 42° | 4.7 | 10.4 | 1.4 | 11.7 | 4.6 |
| Apr | 64° / 45° | 2.1 | 6.5 | 0.3 | 13 | 6.2 |
| May | 71° / 51° | 1.4 | 4.7 | 0 | 14.1 | 7.8 |
| Jun | 80° / 58° | 0.5 | 2.1 | 0 | 14.7 | 8.2 |
| Jul | 87° / 64° | 0.0 | 0.2 | 0 | 14.5 | 6.6 |
| Aug | 86° / 63° | 0.1 | 0.4 | 0 | 13.5 | 6.7 |
| Sep | 82° / 59° | 0.2 | 1 | 0 | 12.3 | 8.2 |
| Oct | 72° / 52° | 1.6 | 3.8 | 0 | 11 | 8.2 |
| Nov | 60° / 43° | 3.2 | 7.1 | 0.2 | 9.9 | 5.1 |
| Dec | 52° / 38° | 6.2 | 10.5 | 0.8 | 9.3 | 2.8 |
Cloud cover in February
The sky is clear or mostly clear about 31% of the time in February.
Beyond those clear spells, partly cloudy skies cover about 12% of February, with mostly cloudy or overcast conditions the remaining 57%.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 43 | 44 | 43 | 43 | 44 | 44 | 43 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 43 | 43 | 42 | 42 | 43 | 43 | 43 | 44 | 44 | 44 | 45 | 45 | 46 |
| Cloudier (%) | 57 | 56 | 57 | 57 | 56 | 56 | 57 | 58 | 58 | 58 | 58 | 58 | 58 | 58 | 58 | 57 | 57 | 58 | 58 | 57 | 57 | 57 | 56 | 56 | 56 | 55 | 55 | 54 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 43 | 57 |
| 2 | 44 | 56 |
| 3 | 43 | 57 |
| 4 | 43 | 57 |
| 5 | 44 | 56 |
| 6 | 44 | 56 |
| 7 | 43 | 57 |
| 8 | 42 | 58 |
| 9 | 42 | 58 |
| 10 | 42 | 58 |
| 11 | 42 | 58 |
| 12 | 42 | 58 |
| 13 | 42 | 58 |
| 14 | 42 | 58 |
| 15 | 42 | 58 |
| 16 | 43 | 57 |
| 17 | 43 | 57 |
| 18 | 42 | 58 |
| 19 | 42 | 58 |
| 20 | 43 | 57 |
| 21 | 43 | 57 |
| 22 | 43 | 57 |
| 23 | 44 | 56 |
| 24 | 44 | 56 |
| 25 | 44 | 56 |
| 26 | 45 | 55 |
| 27 | 45 | 55 |
| 28 | 46 | 54 |
Chance of precipitation in February
Clearlake gets around 5.9 in of rain and snow over 9.4 wet days in February. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable precipitation averages around 34% and peaks near 37% on the wettest days, and about 2 days bring snow. The odds climb 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 31 | 31 | 31 | 31 | 31 | 31 | 32 | 32 | 33 | 33 | 34 | 34 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 36 | 36 | 36 | 36 | 37 | 37 | 37 | 37 | 37 |
| Snow chance (%) | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 |
| Rain chance (%) | Snow chance (%) | |
|---|---|---|
| 1 | 31 | 3 |
| 2 | 31 | 3 |
| 3 | 31 | 3 |
| 4 | 31 | 4 |
| 5 | 31 | 4 |
| 6 | 31 | 4 |
| 7 | 32 | 4 |
| 8 | 32 | 5 |
| 9 | 33 | 5 |
| 10 | 33 | 5 |
| 11 | 34 | 6 |
| 12 | 34 | 6 |
| 13 | 35 | 6 |
| 14 | 35 | 7 |
| 15 | 35 | 7 |
| 16 | 35 | 7 |
| 17 | 35 | 7 |
| 18 | 35 | 7 |
| 19 | 35 | 7 |
| 20 | 36 | 7 |
| 21 | 36 | 7 |
| 22 | 36 | 7 |
| 23 | 36 | 7 |
| 24 | 37 | 7 |
| 25 | 37 | 7 |
| 26 | 37 | 7 |
| 27 | 37 | 6 |
| 28 | 37 | 6 |
Humidity in February
Most of February feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, February 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| 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 |
Wind in February
Winds average 4 mph in February.
Across February, daily wind ranges from about 4 mph on the calmest days to 4 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (mph) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| 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 |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 4 | calm |
| 2 | 4 | calm |
| 3 | 4 | calm |
| 4 | 4 | calm |
| 5 | 4 | calm |
| 6 | 4 | calm |
| 7 | 4 | calm |
| 8 | 4 | calm |
| 9 | 4 | calm |
| 10 | 4 | calm |
| 11 | 4 | calm |
| 12 | 4 | calm |
| 13 | 4 | calm |
| 14 | 4 | calm |
| 15 | 4 | calm |
| 16 | 4 | calm |
| 17 | 4 | calm |
| 18 | 4 | calm |
| 19 | 4 | calm |
| 20 | 4 | calm |
| 21 | 4 | calm |
| 22 | 4 | calm |
| 23 | 4 | calm |
| 24 | 4 | calm |
| 25 | 4 | calm |
| 26 | 4 | calm |
| 27 | 4 | calm |
| 28 | 4 | calm |
Sunrise & sunset in February
Daylight runs from about 10 hours at the start of February to 11 hours by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 60 minutes over February. Sunrise moves from 7:24 AM to 6:54 AM, and sunset from 5:24 PM to 5:54 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 10.0 | 10.0 | 10.1 | 10.1 | 10.1 | 10.2 | 10.2 | 10.2 | 10.3 | 10.3 | 10.3 | 10.4 | 10.4 | 10.4 | 10.5 | 10.5 | 10.6 | 10.6 | 10.6 | 10.7 | 10.7 | 10.8 | 10.8 | 10.8 | 10.9 | 10.9 | 11.0 | 11.0 |
| Sunrise (AM) | 7:24 | 7:24 | 7:23 | 7:22 | 7:21 | 7:20 | 7:19 | 7:18 | 7:17 | 7:16 | 7:15 | 7:14 | 7:13 | 7:12 | 7:11 | 7:09 | 7:08 | 7:07 | 7:06 | 7:04 | 7:03 | 7:02 | 7:01 | 6:59 | 6:58 | 6:57 | 6:55 | 6:54 |
| Sunset (PM) | 5:24 | 5:25 | 5:26 | 5:27 | 5:28 | 5:29 | 5:31 | 5:32 | 5:33 | 5:34 | 5:35 | 5:36 | 5:37 | 5:39 | 5:40 | 5:41 | 5:42 | 5:43 | 5:44 | 5:45 | 5:46 | 5:47 | 5:49 | 5:50 | 5:51 | 5:52 | 5:53 | 5:54 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 10.0 | 7:24 | 5:24 |
| 2 | 10.0 | 7:24 | 5:25 |
| 3 | 10.1 | 7:23 | 5:26 |
| 4 | 10.1 | 7:22 | 5:27 |
| 5 | 10.1 | 7:21 | 5:28 |
| 6 | 10.2 | 7:20 | 5:29 |
| 7 | 10.2 | 7:19 | 5:31 |
| 8 | 10.2 | 7:18 | 5:32 |
| 9 | 10.3 | 7:17 | 5:33 |
| 10 | 10.3 | 7:16 | 5:34 |
| 11 | 10.3 | 7:15 | 5:35 |
| 12 | 10.4 | 7:14 | 5:36 |
| 13 | 10.4 | 7:13 | 5:37 |
| 14 | 10.4 | 7:12 | 5:39 |
| 15 | 10.5 | 7:11 | 5:40 |
| 16 | 10.5 | 7:09 | 5:41 |
| 17 | 10.6 | 7:08 | 5:42 |
| 18 | 10.6 | 7:07 | 5:43 |
| 19 | 10.6 | 7:06 | 5:44 |
| 20 | 10.7 | 7:04 | 5:45 |
| 21 | 10.7 | 7:03 | 5:46 |
| 22 | 10.8 | 7:02 | 5:47 |
| 23 | 10.8 | 7:01 | 5:49 |
| 24 | 10.8 | 6:59 | 5:50 |
| 25 | 10.9 | 6:58 | 5:51 |
| 26 | 10.9 | 6:57 | 5:52 |
| 27 | 11.0 | 6:55 | 5:53 |
| 28 | 11.0 | 6:54 | 5:54 |
Solar energy in February
Average shortwave solar energy reaching the ground each day in February, about 3.14 kWh/m².
For context, solar energy here swings from a low near 2.01 kWh/m² to a high of 8.26 kWh/m² in July across the year — February's 3.14 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 2.7 | 2.7 | 2.8 | 2.8 | 2.8 | 2.9 | 2.9 | 2.9 | 3.0 | 3.0 | 3.0 | 3.0 | 3.1 | 3.1 | 3.1 | 3.2 | 3.2 | 3.3 | 3.3 | 3.3 | 3.4 | 3.4 | 3.5 | 3.5 | 3.5 | 3.6 | 3.6 | 3.7 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 2.7 | Moderate |
| 2 | 2.7 | Moderate |
| 3 | 2.8 | Moderate |
| 4 | 2.8 | Moderate |
| 5 | 2.8 | Moderate |
| 6 | 2.9 | Moderate |
| 7 | 2.9 | Moderate |
| 8 | 2.9 | Moderate |
| 9 | 3.0 | Moderate |
| 10 | 3.0 | Moderate |
| 11 | 3.0 | Moderate |
| 12 | 3.0 | Moderate |
| 13 | 3.1 | Moderate |
| 14 | 3.1 | Moderate |
| 15 | 3.1 | Moderate |
| 16 | 3.2 | Moderate |
| 17 | 3.2 | Moderate |
| 18 | 3.3 | Moderate |
| 19 | 3.3 | Moderate |
| 20 | 3.3 | Moderate |
| 21 | 3.4 | Moderate |
| 22 | 3.4 | Moderate |
| 23 | 3.5 | Moderate |
| 24 | 3.5 | Moderate |
| 25 | 3.5 | Moderate |
| 26 | 3.6 | Moderate |
| 27 | 3.6 | Moderate |
| 28 | 3.7 | Moderate |
Hazard calendar for Clearlake
In February, Clearlake sits inside its rainy season season. The full year is below, with each hazard's peak months called out.
Clearlake's rainy season runs November–March, when most of the year's rain falls.
Is February a good time to visit Clearlake?
Our two travel scores rate February for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
February is a weaker month for outdoor sightseeing in Clearlake.
What to pack for Clearlake in February
From February's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In February, Clearlake sees daytime highs around 55°F and nights near 40°F. Worth packing: a warm layer and rain gear. About 9 days see rain.
UV index in Clearlake in February
Clear-sky midday UV in February peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Clearlake peaks around June 23 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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 | 6 | 9 | 10 | 10 | 9 | 6 | 5 | 2 | 2 |
| Level | Moderate | Moderate | Moderate | High | Very high | Extreme | Extreme | Very high | High | High | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Moderate |
| Feb | 3 | Moderate |
| Mar | 5 | Moderate |
| Apr | 6 | High |
| May | 9 | Very high |
| Jun | 10 | Extreme |
| Jul | 10 | Extreme |
| Aug | 9 | Very high |
| Sep | 6 | High |
| Oct | 5 | High |
| Nov | 2 | Moderate |
| Dec | 2 | Low |
Air quality in Clearlake in February
Average fine-particle pollution (PM2.5) through the year — so you can see where February falls, not just the annual average.
Air quality in Clearlake is worst in September — around 31 µg/m³ PM2.5 (moderate), about 5.8× the cleanest month (June, 5 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 6 | 8 | 9 | 8 | 6 | 5 | 14 | 29 | 31 | 14 | 8 | 6 |
| Level | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 6 | Good |
| Feb | 8 | Good |
| Mar | 9 | Good |
| Apr | 8 | Good |
| May | 6 | Good |
| Jun | 5 | Good |
| Jul | 14 | Moderate |
| Aug | 29 | Moderate |
| Sep | 31 | Moderate |
| Oct | 14 | Moderate |
| Nov | 8 | Good |
| Dec | 6 | Good |
Where is Clearlake?
Clearlake sits at 39.0°N, 122.6°W, 1,417 ft above sea level, in United States. The nearest listed city is Windsor, 30 mi away.
Topography around Clearlake
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Clearlake.
Within 2 miles, the terrain around Clearlake has significant variations in elevation — a maximum elevation change of 853 ft around an average of 1,493 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,409 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 6,982 ft.
The land around Clearlake is covered by trees (39%) and grassland (28%) within 2 miles, trees (52%) and grassland (38%) within 10 miles, and trees (52%) and grassland (30%) 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 Clearlake (38.9582°, -122.6264°, elevation 1,417 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).