Chur weather in August
In August, Chur sees average daytime highs of 16°C and overnight lows near 6°C, with 163 mm of precipitation across 16.5 wet days and about 14 hours of daylight. It is the 2nd-warmest and 2nd-wettest month of the year here.
Highs ease over the month, from about 17°C in the first days to 15°C by the end. The sky is clear or mostly clear about 27% of the time in August, and the air most often feels dry.
Daylight stretches from about 14 h 42 min at the start of August to 13 h 12 min by month's end. Set against the rest of the year, August is Chur's 2nd-clearest and 12th-windiest month. For the whole year in context, see Chur's year-round climate.
- Daytime high
- 16°
- 2nd warmest
- Overnight low
- 6°
- 11th coldest
- Precipitation
- 163 mm
- 16.5 wet days
- Daylight
- 14 hours
- 5:25 AM – 7:27 PM
- Cloud cover
- 59%
- 2nd clearest
- Wind
- 4 km/h
- 12th windiest
- Solar energy
- 4.85 kWh/m²
- Travel score
- 4.5
- out of 10
Chur is capital of the canton of Graubünden, Switzerland.
- Air quality
- Good
- PM2.5 8.2 µg/m³ · 2020
- Density
- 652/km²
- people per km²
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in August
Highs ease over the month, from about 17°C in the first days to 15°C by the end.
A typical August day in Chur reaches about 16°C in the afternoon and slips back to 6°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 21°C. Set against its neighbours, August runs on par with July and about 4°C warmer than September.
| 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 |
| Avg low (°C) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 17 | 7 |
| 2 | 17 | 7 |
| 3 | 17 | 7 |
| 4 | 17 | 7 |
| 5 | 17 | 7 |
| 6 | 17 | 7 |
| 7 | 17 | 7 |
| 8 | 17 | 7 |
| 9 | 17 | 7 |
| 10 | 17 | 7 |
| 11 | 17 | 7 |
| 12 | 17 | 7 |
| 13 | 17 | 7 |
| 14 | 17 | 7 |
| 15 | 17 | 7 |
| 16 | 17 | 7 |
| 17 | 17 | 7 |
| 18 | 16 | 7 |
| 19 | 16 | 7 |
| 20 | 16 | 6 |
| 21 | 16 | 6 |
| 22 | 16 | 6 |
| 23 | 16 | 6 |
| 24 | 16 | 6 |
| 25 | 16 | 6 |
| 26 | 16 | 6 |
| 27 | 15 | 6 |
| 28 | 15 | 5 |
| 29 | 15 | 5 |
| 30 | 15 | 5 |
| 31 | 15 | 5 |
How August really feels in Chur
Once humidity and wind are folded in, August 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.
August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Chur weather by month
How August compares with the rest of the year at a glance. August is the 2nd-warmest and 2nd-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | -4° / -12° | 78 | 12.1 | 13.5 | 8.8 | 0.0 |
| Feb | -2° / -11° | 69 | 11.5 | 12.6 | 10 | 0.0 |
| Mar | 2° / -7° | 91 | 14 | 14.6 | 11.6 | 0.0 |
| Apr | 6° / -3° | 107 | 15.2 | 12.5 | 13.3 | 0.3 |
| May | 11° / 1° | 140 | 18.8 | 7 | 14.8 | 2.0 |
| Jun | 15° / 5° | 164 | 18.9 | 2.1 | 15.6 | 3.5 |
| Jul | 17° / 7° | 154 | 17.8 | 0.7 | 15.3 | 4.4 |
| Aug | 16° / 6° | 163 | 16.5 | 0.5 | 14 | 4.5 |
| Sep | 13° / 3° | 120 | 13.7 | 3.2 | 12.4 | 3.1 |
| Oct | 8° / -0° | 111 | 12.1 | 6.4 | 10.6 | 1.3 |
| Nov | 2° / -6° | 119 | 13.5 | 13 | 9.2 | 0.0 |
| Dec | -3° / -11° | 91 | 13.1 | 13.9 | 8.4 | 0.0 |
Cloud cover in August
The sky is clear or mostly clear about 27% of the time in August.
Beyond those clear spells, partly cloudy skies cover about 19% of August, with mostly cloudy or overcast conditions the remaining 54%.
| 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 45 | 45 | 45 | 44 | 44 | 44 | 44 | 44 | 44 | 45 | 46 | 47 | 46 | 47 | 47 | 49 | 49 | 49 | 50 | 50 | 50 | 49 | 49 | 48 | 47 | 47 | 46 | 45 | 45 | 43 | 44 |
| Cloudier (%) | 55 | 55 | 55 | 56 | 56 | 56 | 56 | 56 | 56 | 55 | 54 | 53 | 54 | 53 | 53 | 51 | 51 | 51 | 50 | 50 | 50 | 51 | 51 | 52 | 53 | 53 | 54 | 55 | 55 | 57 | 56 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 45 | 55 |
| 2 | 45 | 55 |
| 3 | 45 | 55 |
| 4 | 44 | 56 |
| 5 | 44 | 56 |
| 6 | 44 | 56 |
| 7 | 44 | 56 |
| 8 | 44 | 56 |
| 9 | 44 | 56 |
| 10 | 45 | 55 |
| 11 | 46 | 54 |
| 12 | 47 | 53 |
| 13 | 46 | 54 |
| 14 | 47 | 53 |
| 15 | 47 | 53 |
| 16 | 49 | 51 |
| 17 | 49 | 51 |
| 18 | 49 | 51 |
| 19 | 50 | 50 |
| 20 | 50 | 50 |
| 21 | 50 | 50 |
| 22 | 49 | 51 |
| 23 | 49 | 51 |
| 24 | 48 | 52 |
| 25 | 47 | 53 |
| 26 | 47 | 53 |
| 27 | 46 | 54 |
| 28 | 45 | 55 |
| 29 | 45 | 55 |
| 30 | 43 | 57 |
| 31 | 44 | 56 |
Chance of precipitation in August
Chur gets around 163 mm of rain and snow over 16.5 wet days in August. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable precipitation averages around 53% and peaks near 57% 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 57 | 57 | 57 | 57 | 56 | 56 | 56 | 55 | 55 | 54 | 53 | 53 | 52 | 52 | 51 | 51 | 51 | 50 | 50 | 50 | 50 | 50 | 50 | 51 | 51 | 51 | 51 | 51 | 51 | 51 | 50 |
| Snow chance (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 3 | 4 | 4 | 5 | 5 | 6 | 6 | 7 |
| Rain chance (%) | Snow chance (%) | |
|---|---|---|
| 1 | 57 | 0 |
| 2 | 57 | 0 |
| 3 | 57 | 0 |
| 4 | 57 | 0 |
| 5 | 56 | 0 |
| 6 | 56 | 0 |
| 7 | 56 | 0 |
| 8 | 55 | 0 |
| 9 | 55 | 0 |
| 10 | 54 | 0 |
| 11 | 53 | 0 |
| 12 | 53 | 0 |
| 13 | 52 | 0 |
| 14 | 52 | 0 |
| 15 | 51 | 0 |
| 16 | 51 | 1 |
| 17 | 51 | 1 |
| 18 | 50 | 1 |
| 19 | 50 | 1 |
| 20 | 50 | 1 |
| 21 | 50 | 2 |
| 22 | 50 | 2 |
| 23 | 50 | 3 |
| 24 | 51 | 3 |
| 25 | 51 | 4 |
| 26 | 51 | 4 |
| 27 | 51 | 5 |
| 28 | 51 | 5 |
| 29 | 51 | 6 |
| 30 | 51 | 6 |
| 31 | 50 | 7 |
Humidity in August
Most of August feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, August 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 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 |
| 31 | 100 |
Wind in August
Winds average 4 km/h in August, the calmest month.
Across August, daily wind ranges from about 4 km/h on the calmest days to 4 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 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 | 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 | calm | calm | calm |
| Wind speed (km/h) | 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 |
| 29 | 4 | calm |
| 30 | 4 | calm |
| 31 | 4 | calm |
Sunrise & sunset in August
Daylight runs from about 14 h 42 min at the start of August to 13 h 12 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 90 minutes over August. Sunrise moves from 5:06 AM to 5:45 AM, and sunset from 7:50 PM to 6:59 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 14.7 | 14.7 | 14.7 | 14.6 | 14.6 | 14.5 | 14.5 | 14.4 | 14.4 | 14.3 | 14.3 | 14.2 | 14.2 | 14.1 | 14.1 | 14.0 | 14.0 | 13.9 | 13.9 | 13.8 | 13.8 | 13.7 | 13.7 | 13.6 | 13.6 | 13.5 | 13.5 | 13.4 | 13.3 | 13.3 | 13.2 |
| Sunrise (AM) | 5:06 | 5:07 | 5:08 | 5:09 | 5:11 | 5:12 | 5:13 | 5:14 | 5:16 | 5:17 | 5:18 | 5:20 | 5:21 | 5:22 | 5:24 | 5:25 | 5:26 | 5:28 | 5:29 | 5:30 | 5:32 | 5:33 | 5:34 | 5:36 | 5:37 | 5:38 | 5:40 | 5:41 | 5:42 | 5:44 | 5:45 |
| Sunset (PM) | 7:50 | 7:49 | 7:47 | 7:46 | 7:45 | 7:43 | 7:42 | 7:40 | 7:39 | 7:37 | 7:35 | 7:34 | 7:32 | 7:30 | 7:29 | 7:27 | 7:25 | 7:23 | 7:22 | 7:20 | 7:18 | 7:16 | 7:14 | 7:12 | 7:11 | 7:09 | 7:07 | 7:05 | 7:03 | 7:01 | 6:59 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 14.7 | 5:06 | 7:50 |
| 2 | 14.7 | 5:07 | 7:49 |
| 3 | 14.7 | 5:08 | 7:47 |
| 4 | 14.6 | 5:09 | 7:46 |
| 5 | 14.6 | 5:11 | 7:45 |
| 6 | 14.5 | 5:12 | 7:43 |
| 7 | 14.5 | 5:13 | 7:42 |
| 8 | 14.4 | 5:14 | 7:40 |
| 9 | 14.4 | 5:16 | 7:39 |
| 10 | 14.3 | 5:17 | 7:37 |
| 11 | 14.3 | 5:18 | 7:35 |
| 12 | 14.2 | 5:20 | 7:34 |
| 13 | 14.2 | 5:21 | 7:32 |
| 14 | 14.1 | 5:22 | 7:30 |
| 15 | 14.1 | 5:24 | 7:29 |
| 16 | 14.0 | 5:25 | 7:27 |
| 17 | 14.0 | 5:26 | 7:25 |
| 18 | 13.9 | 5:28 | 7:23 |
| 19 | 13.9 | 5:29 | 7:22 |
| 20 | 13.8 | 5:30 | 7:20 |
| 21 | 13.8 | 5:32 | 7:18 |
| 22 | 13.7 | 5:33 | 7:16 |
| 23 | 13.7 | 5:34 | 7:14 |
| 24 | 13.6 | 5:36 | 7:12 |
| 25 | 13.6 | 5:37 | 7:11 |
| 26 | 13.5 | 5:38 | 7:09 |
| 27 | 13.5 | 5:40 | 7:07 |
| 28 | 13.4 | 5:41 | 7:05 |
| 29 | 13.3 | 5:42 | 7:03 |
| 30 | 13.3 | 5:44 | 7:01 |
| 31 | 13.2 | 5:45 | 6:59 |
Solar energy in August
Average shortwave solar energy reaching the ground each day in August, about 4.85 kWh/m².
For context, solar energy here swings from a low near 1.31 kWh/m² to a high of 5.69 kWh/m² in June across the year — August's 4.85 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.3 | 5.2 | 5.2 | 5.2 | 5.2 | 5.1 | 5.1 | 5.1 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 4.9 | 4.9 | 4.9 | 4.9 | 4.8 | 4.8 | 4.8 | 4.8 | 4.7 | 4.7 | 4.7 | 4.6 | 4.6 | 4.5 | 4.5 | 4.5 | 4.4 | 4.4 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | 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 | 5.3 | Bright |
| 2 | 5.2 | Bright |
| 3 | 5.2 | Bright |
| 4 | 5.2 | Bright |
| 5 | 5.2 | Bright |
| 6 | 5.1 | Bright |
| 7 | 5.1 | Bright |
| 8 | 5.1 | Bright |
| 9 | 5.0 | Bright |
| 10 | 5.0 | Bright |
| 11 | 5.0 | Bright |
| 12 | 5.0 | Bright |
| 13 | 5.0 | Bright |
| 14 | 4.9 | Bright |
| 15 | 4.9 | Bright |
| 16 | 4.9 | Bright |
| 17 | 4.9 | Bright |
| 18 | 4.8 | Bright |
| 19 | 4.8 | Bright |
| 20 | 4.8 | Bright |
| 21 | 4.8 | Bright |
| 22 | 4.7 | Bright |
| 23 | 4.7 | Bright |
| 24 | 4.7 | Bright |
| 25 | 4.6 | Bright |
| 26 | 4.6 | Bright |
| 27 | 4.5 | Bright |
| 28 | 4.5 | Bright |
| 29 | 4.5 | Bright |
| 30 | 4.4 | Bright |
| 31 | 4.4 | Bright |
Is August a good time to visit Chur?
Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
August is a reasonable time to visit Chur for sightseeing.
What to pack for Chur in August
From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In August, Chur sees daytime highs around 16°C and nights near 6°C. Pack rain gear. Worth having: a warm layer and sun protection. About 17 days see rain.
UV index in Chur in August
Clear-sky midday UV in August peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Chur peaks around July 16 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 | 3 | 6 | 6 | 8 | 8 | 9 | 8 | 6 | 4 | 2 | 1 |
| Level | Low | Moderate | High | High | Very high | Very high | Very high | Very high | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 3 | Moderate |
| Mar | 6 | High |
| Apr | 6 | High |
| May | 8 | Very high |
| Jun | 8 | Very high |
| Jul | 9 | Very high |
| Aug | 8 | Very high |
| Sep | 6 | High |
| Oct | 4 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Where is Chur?
Chur sits at 46.8°N, 9.5°E, 601 m above sea level, in Switzerland. The nearest listed city is Davos, 24 km away.
Topography around Chur
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Chur.
Within 3 km, the terrain around Chur has very significant variations in elevation — a maximum elevation change of 1,304 m around an average of 879 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,677 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,742 m.
The land around Chur is covered by trees (65%) within 3 km, trees (49%) and grassland (39%) within 16 km, and grassland (43%) and trees (37%) within 80 km.
Switzerland travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / J
- 230 V · 50 Hz
- Prices
- ≈ 112% of US
- price level, 2025
- GDP per capita
- $114,769
- 2025
- Happiness
- 7.0 / 10
- World Happiness, 2025
- Safe drinking water
- 97%
- of population, 2024
- Homicide rate
- 0.6
- per 100k, 2023
- Road deaths
- 2.2
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- High
- EF EPI 564
- 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 Chur (46.8499°, 9.5329°, elevation 601 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).