Chur weather in March
In March, Chur sees average daytime highs of 2°C and overnight lows near -7°C, with 91 mm of precipitation across 14 wet days and about 11.6 hours of daylight. It is the 8th-warmest and 10th-wettest month of the year here.
Highs climb over the month, from about 0°C in the first days to 4°C by the end. The sky is clear or mostly clear about 29% of the time in March, and the air most often feels dry.
Daylight stretches from about 10 h 42 min at the start of March to 12 h 24 min by month's end. Set against the rest of the year, March is Chur's 5th-clearest and 3rd-windiest month. For the whole year in context, see Chur's year-round climate.
- Daytime high
- 2°
- 8th warmest
- Overnight low
- -7°
- 4th coldest
- Precipitation
- 91 mm
- 14 wet days
- Daylight
- 11 h 36 min
- 6:44 AM – 6:19 PM
- Cloud cover
- 61%
- 5th clearest
- Wind
- 5 km/h
- 3rd windiest
- Solar energy
- 4.03 kWh/m²
- Travel score
- 0.0
- 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 March
Highs climb over the month, from about 0°C in the first days to 4°C by the end.
A typical March day in Chur reaches about 2°C in the afternoon and slips back to -7°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between -4°C and 7°C. Set against its neighbours, March runs about 4°C warmer than February and about 4°C cooler than April.
| 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) | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 |
| Avg low (°C) | -9 | -9 | -8 | -8 | -8 | -8 | -8 | -8 | -8 | -7 | -7 | -7 | -7 | -7 | -7 | -6 | -6 | -6 | -6 | -6 | -6 | -6 | -6 | -6 | -5 | -5 | -5 | -5 | -5 | -5 | -5 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 0 | -9 |
| 2 | 0 | -9 |
| 3 | 0 | -8 |
| 4 | 0 | -8 |
| 5 | 0 | -8 |
| 6 | 1 | -8 |
| 7 | 1 | -8 |
| 8 | 1 | -8 |
| 9 | 1 | -8 |
| 10 | 1 | -7 |
| 11 | 2 | -7 |
| 12 | 2 | -7 |
| 13 | 2 | -7 |
| 14 | 2 | -7 |
| 15 | 2 | -7 |
| 16 | 2 | -6 |
| 17 | 2 | -6 |
| 18 | 3 | -6 |
| 19 | 3 | -6 |
| 20 | 3 | -6 |
| 21 | 3 | -6 |
| 22 | 3 | -6 |
| 23 | 3 | -6 |
| 24 | 3 | -6 |
| 25 | 3 | -5 |
| 26 | 3 | -5 |
| 27 | 3 | -5 |
| 28 | 3 | -5 |
| 29 | 4 | -5 |
| 30 | 4 | -5 |
| 31 | 4 | -5 |
How March really feels in Chur
Once humidity and wind are folded in, March averages 0 days that feel above 32°C and 31 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in March is cold — wind chill drags the overnight "feels like" below the raw low.
Chur weather by month
How March compares with the rest of the year at a glance. March is the 8th-warmest and 10th-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 March
The sky is clear or mostly clear about 29% of the time in March.
Beyond those clear spells, partly cloudy skies cover about 12% of March, with mostly cloudy or overcast conditions the remaining 59%.
| 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 (%) | 36 | 36 | 36 | 36 | 36 | 38 | 38 | 40 | 40 | 41 | 42 | 43 | 44 | 45 | 45 | 45 | 44 | 45 | 45 | 44 | 44 | 42 | 42 | 42 | 42 | 41 | 41 | 40 | 40 | 40 | 40 |
| Cloudier (%) | 64 | 64 | 64 | 64 | 64 | 62 | 62 | 60 | 60 | 59 | 58 | 57 | 56 | 55 | 55 | 55 | 56 | 55 | 55 | 56 | 56 | 58 | 58 | 58 | 58 | 59 | 59 | 60 | 60 | 60 | 60 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 36 | 64 |
| 2 | 36 | 64 |
| 3 | 36 | 64 |
| 4 | 36 | 64 |
| 5 | 36 | 64 |
| 6 | 38 | 62 |
| 7 | 38 | 62 |
| 8 | 40 | 60 |
| 9 | 40 | 60 |
| 10 | 41 | 59 |
| 11 | 42 | 58 |
| 12 | 43 | 57 |
| 13 | 44 | 56 |
| 14 | 45 | 55 |
| 15 | 45 | 55 |
| 16 | 45 | 55 |
| 17 | 44 | 56 |
| 18 | 45 | 55 |
| 19 | 45 | 55 |
| 20 | 44 | 56 |
| 21 | 44 | 56 |
| 22 | 42 | 58 |
| 23 | 42 | 58 |
| 24 | 42 | 58 |
| 25 | 42 | 58 |
| 26 | 41 | 59 |
| 27 | 41 | 59 |
| 28 | 40 | 60 |
| 29 | 40 | 60 |
| 30 | 40 | 60 |
| 31 | 40 | 60 |
Chance of precipitation in March
Chur gets around 91 mm of rain and snow over 14 wet days in March. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable precipitation averages around 44% and peaks near 47% on the wettest days, and about 15 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 45 | 45 | 45 | 44 | 44 | 44 | 43 | 43 | 42 | 42 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 42 | 43 | 44 | 44 | 45 | 46 | 46 | 46 | 47 | 47 | 47 | 47 | 47 | 47 |
| Snow chance (%) | 48 | 48 | 48 | 48 | 48 | 47 | 47 | 46 | 45 | 45 | 44 | 44 | 43 | 43 | 43 | 43 | 43 | 43 | 44 | 44 | 45 | 45 | 46 | 46 | 46 | 46 | 46 | 46 | 46 | 46 | 46 |
| Rain chance (%) | Snow chance (%) | |
|---|---|---|
| 1 | 45 | 48 |
| 2 | 45 | 48 |
| 3 | 45 | 48 |
| 4 | 44 | 48 |
| 5 | 44 | 48 |
| 6 | 44 | 47 |
| 7 | 43 | 47 |
| 8 | 43 | 46 |
| 9 | 42 | 45 |
| 10 | 42 | 45 |
| 11 | 41 | 44 |
| 12 | 41 | 44 |
| 13 | 41 | 43 |
| 14 | 41 | 43 |
| 15 | 41 | 43 |
| 16 | 41 | 43 |
| 17 | 41 | 43 |
| 18 | 42 | 43 |
| 19 | 43 | 44 |
| 20 | 44 | 44 |
| 21 | 44 | 45 |
| 22 | 45 | 45 |
| 23 | 46 | 46 |
| 24 | 46 | 46 |
| 25 | 46 | 46 |
| 26 | 47 | 46 |
| 27 | 47 | 46 |
| 28 | 47 | 46 |
| 29 | 47 | 46 |
| 30 | 47 | 46 |
| 31 | 47 | 46 |
Humidity in March
Most of March feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, March 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 March
Winds average 5 km/h in March.
Across March, daily wind ranges from about 5 km/h on the calmest days to 5 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) | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| 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 | 5 | calm |
| 2 | 5 | calm |
| 3 | 5 | calm |
| 4 | 5 | calm |
| 5 | 5 | calm |
| 6 | 5 | calm |
| 7 | 5 | calm |
| 8 | 5 | calm |
| 9 | 5 | calm |
| 10 | 5 | calm |
| 11 | 5 | calm |
| 12 | 5 | calm |
| 13 | 5 | calm |
| 14 | 5 | calm |
| 15 | 5 | calm |
| 16 | 5 | calm |
| 17 | 5 | calm |
| 18 | 5 | calm |
| 19 | 5 | calm |
| 20 | 5 | calm |
| 21 | 5 | calm |
| 22 | 5 | calm |
| 23 | 5 | calm |
| 24 | 5 | calm |
| 25 | 5 | calm |
| 26 | 5 | calm |
| 27 | 5 | calm |
| 28 | 5 | calm |
| 29 | 5 | calm |
| 30 | 5 | calm |
| 31 | 5 | calm |
Sunrise & sunset in March
Daylight runs from about 10 h 42 min at the start of March to 12 h 24 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 102 minutes over March. Sunrise moves from 7:13 AM to 6:14 AM, and sunset from 5:57 PM to 6:40 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) | 10.7 | 10.8 | 10.8 | 10.9 | 11.0 | 11.0 | 11.1 | 11.1 | 11.2 | 11.2 | 11.3 | 11.4 | 11.4 | 11.5 | 11.5 | 11.6 | 11.6 | 11.7 | 11.8 | 11.8 | 11.9 | 11.9 | 12.0 | 12.0 | 12.1 | 12.2 | 12.2 | 12.3 | 12.3 | 12.4 | 12.4 |
| Sunrise (AM) | 7:13 | 7:11 | 7:09 | 7:07 | 7:05 | 7:04 | 7:02 | 7:00 | 6:58 | 6:56 | 6:54 | 6:52 | 6:50 | 6:48 | 6:46 | 6:44 | 6:42 | 6:40 | 6:38 | 6:36 | 6:34 | 6:32 | 6:30 | 6:28 | 6:26 | 6:24 | 6:22 | 6:20 | 6:18 | 6:16 | 6:14 |
| Sunset (PM) | 5:57 | 5:59 | 6:00 | 6:02 | 6:03 | 6:05 | 6:06 | 6:08 | 6:09 | 6:10 | 6:12 | 6:13 | 6:15 | 6:16 | 6:18 | 6:19 | 6:20 | 6:22 | 6:23 | 6:25 | 6:26 | 6:28 | 6:29 | 6:30 | 6:32 | 6:33 | 6:35 | 6:36 | 6:37 | 6:39 | 6:40 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 10.7 | 7:13 | 5:57 |
| 2 | 10.8 | 7:11 | 5:59 |
| 3 | 10.8 | 7:09 | 6:00 |
| 4 | 10.9 | 7:07 | 6:02 |
| 5 | 11.0 | 7:05 | 6:03 |
| 6 | 11.0 | 7:04 | 6:05 |
| 7 | 11.1 | 7:02 | 6:06 |
| 8 | 11.1 | 7:00 | 6:08 |
| 9 | 11.2 | 6:58 | 6:09 |
| 10 | 11.2 | 6:56 | 6:10 |
| 11 | 11.3 | 6:54 | 6:12 |
| 12 | 11.4 | 6:52 | 6:13 |
| 13 | 11.4 | 6:50 | 6:15 |
| 14 | 11.5 | 6:48 | 6:16 |
| 15 | 11.5 | 6:46 | 6:18 |
| 16 | 11.6 | 6:44 | 6:19 |
| 17 | 11.6 | 6:42 | 6:20 |
| 18 | 11.7 | 6:40 | 6:22 |
| 19 | 11.8 | 6:38 | 6:23 |
| 20 | 11.8 | 6:36 | 6:25 |
| 21 | 11.9 | 6:34 | 6:26 |
| 22 | 11.9 | 6:32 | 6:28 |
| 23 | 12.0 | 6:30 | 6:29 |
| 24 | 12.0 | 6:28 | 6:30 |
| 25 | 12.1 | 6:26 | 6:32 |
| 26 | 12.2 | 6:24 | 6:33 |
| 27 | 12.2 | 6:22 | 6:35 |
| 28 | 12.3 | 6:20 | 6:36 |
| 29 | 12.3 | 6:18 | 6:37 |
| 30 | 12.4 | 6:16 | 6:39 |
| 31 | 12.4 | 6:14 | 6:40 |
Solar energy in March
Average shortwave solar energy reaching the ground each day in March, about 4.03 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 — March's 4.03 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) | 3.3 | 3.3 | 3.4 | 3.4 | 3.5 | 3.5 | 3.6 | 3.7 | 3.7 | 3.8 | 3.8 | 3.9 | 3.9 | 4.0 | 4.0 | 4.1 | 4.1 | 4.2 | 4.2 | 4.3 | 4.3 | 4.3 | 4.4 | 4.4 | 4.5 | 4.5 | 4.5 | 4.6 | 4.6 | 4.7 | 4.7 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | 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 |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 3.3 | Moderate |
| 2 | 3.3 | Moderate |
| 3 | 3.4 | Moderate |
| 4 | 3.4 | Moderate |
| 5 | 3.5 | Moderate |
| 6 | 3.5 | Moderate |
| 7 | 3.6 | Moderate |
| 8 | 3.7 | Moderate |
| 9 | 3.7 | Moderate |
| 10 | 3.8 | Moderate |
| 11 | 3.8 | Moderate |
| 12 | 3.9 | Moderate |
| 13 | 3.9 | Moderate |
| 14 | 4.0 | Moderate |
| 15 | 4.0 | Bright |
| 16 | 4.1 | Bright |
| 17 | 4.1 | Bright |
| 18 | 4.2 | Bright |
| 19 | 4.2 | Bright |
| 20 | 4.3 | Bright |
| 21 | 4.3 | Bright |
| 22 | 4.3 | Bright |
| 23 | 4.4 | Bright |
| 24 | 4.4 | Bright |
| 25 | 4.5 | Bright |
| 26 | 4.5 | Bright |
| 27 | 4.5 | Bright |
| 28 | 4.6 | Bright |
| 29 | 4.6 | Bright |
| 30 | 4.7 | Bright |
| 31 | 4.7 | Bright |
Is March a good time to visit Chur?
Our two travel scores rate March for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
March is a weaker month for outdoor sightseeing in Chur.
What to pack for Chur in March
From March's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In March, Chur sees daytime highs around 2°C and nights near -7°C. Pack a warm layer, a heavy coat and rain gear. About 14 days see rain.
UV index in Chur in March
Clear-sky midday UV in March 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 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).