Yverdon-les-Bains weather in December
In December, Yverdon-les-Bains sees average daytime highs of 5°C and overnight lows near 1°C, with 110 mm of precipitation across 13.6 wet days and about 8.4 hours of daylight. It is the 11th-warmest and 2nd-wettest month of the year here.
Day-to-day highs hold fairly steady near 5°C through the month. The sky is clear or mostly clear about 19% of the time in December, and the air most often feels dry.
Daylight stretches from about 8 h 36 min at the start of December to 8 h 24 min by month's end. Set against the rest of the year, December is Yverdon-les-Bains's 11th-clearest and 3rd-windiest month. For the whole year in context, see Yverdon-les-Bains's year-round climate.
- Daytime high
- 5°
- 11th warmest
- Overnight low
- 1°
- 3rd coldest
- Precipitation
- 110 mm
- 13.6 wet days
- Daylight
- 8 h 24 min
- 8:19 AM – 4:40 PM
- Cloud cover
- 72%
- 11th clearest
- Wind
- 8 km/h
- 3rd windiest
- Solar energy
- 1.06 kWh/m²
- Travel score
- 0.1
- out of 10
Temperature in December
Day-to-day highs hold fairly steady near 5°C through the month.
A typical December day in Yverdon-les-Bains reaches about 5°C in the afternoon and slips back to 1°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 0°C and 9°C. Set against its neighbours, December runs about 3°C cooler than November and on par with January.
| 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) | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 4 |
| Avg low (°C) | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 6 | 2 |
| 2 | 6 | 2 |
| 3 | 6 | 2 |
| 4 | 6 | 1 |
| 5 | 6 | 1 |
| 6 | 5 | 1 |
| 7 | 5 | 1 |
| 8 | 5 | 1 |
| 9 | 5 | 1 |
| 10 | 5 | 1 |
| 11 | 5 | 1 |
| 12 | 5 | 1 |
| 13 | 5 | 1 |
| 14 | 5 | 1 |
| 15 | 5 | 1 |
| 16 | 5 | 0 |
| 17 | 5 | 0 |
| 18 | 5 | 0 |
| 19 | 5 | 0 |
| 20 | 5 | 0 |
| 21 | 5 | 0 |
| 22 | 5 | 0 |
| 23 | 5 | 0 |
| 24 | 5 | 0 |
| 25 | 5 | 0 |
| 26 | 4 | 0 |
| 27 | 4 | 0 |
| 28 | 4 | 0 |
| 29 | 4 | 0 |
| 30 | 4 | 0 |
| 31 | 4 | 0 |
How December really feels in Yverdon-les-Bains
Once humidity and wind are folded in, December 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 December is cold — wind chill drags the overnight "feels like" below the raw low.
Yverdon-les-Bains weather by month
How December compares with the rest of the year at a glance. December is the 11th-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° / -0° | 94 | 12.3 | 6.7 | 8.8 | 0.0 |
| Feb | 6° / -0° | 81 | 11.2 | 6.8 | 10 | 0.3 |
| Mar | 10° / 2° | 88 | 12.3 | 4.4 | 11.6 | 2.1 |
| Apr | 14° / 5° | 84 | 12.5 | 2 | 13.3 | 3.6 |
| May | 17° / 9° | 110 | 14.8 | 0.2 | 14.8 | 4.9 |
| Jun | 21° / 13° | 100 | 14.2 | 0 | 15.6 | 5.8 |
| Jul | 23° / 15° | 102 | 13.7 | 0 | 15.3 | 6.5 |
| Aug | 23° / 15° | 102 | 12.9 | 0 | 14 | 6.5 |
| Sep | 19° / 11° | 91 | 11.7 | 0 | 12.4 | 5.7 |
| Oct | 14° / 8° | 93 | 12.3 | 0.3 | 10.6 | 3.8 |
| Nov | 8° / 4° | 102 | 12.8 | 3.1 | 9.2 | 1.3 |
| Dec | 5° / 1° | 110 | 13.6 | 6.4 | 8.4 | 0.1 |
Cloud cover in December
The sky is clear or mostly clear about 19% of the time in December.
Beyond those clear spells, partly cloudy skies cover about 11% of December, with mostly cloudy or overcast conditions the remaining 71%.
| 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 (%) | 30 | 29 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 31 | 31 | 31 | 31 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 29 | 28 | 29 | 29 | 30 | 30 | 29 | 30 |
| Cloudier (%) | 70 | 71 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 69 | 69 | 69 | 69 | 71 | 71 | 71 | 71 | 71 | 72 | 72 | 72 | 72 | 72 | 71 | 72 | 71 | 71 | 70 | 70 | 71 | 70 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 30 | 70 |
| 2 | 29 | 71 |
| 3 | 30 | 70 |
| 4 | 30 | 70 |
| 5 | 30 | 70 |
| 6 | 30 | 70 |
| 7 | 30 | 70 |
| 8 | 30 | 70 |
| 9 | 30 | 70 |
| 10 | 31 | 69 |
| 11 | 31 | 69 |
| 12 | 31 | 69 |
| 13 | 31 | 69 |
| 14 | 29 | 71 |
| 15 | 29 | 71 |
| 16 | 29 | 71 |
| 17 | 29 | 71 |
| 18 | 29 | 71 |
| 19 | 28 | 72 |
| 20 | 28 | 72 |
| 21 | 28 | 72 |
| 22 | 28 | 72 |
| 23 | 28 | 72 |
| 24 | 29 | 71 |
| 25 | 28 | 72 |
| 26 | 29 | 71 |
| 27 | 29 | 71 |
| 28 | 30 | 70 |
| 29 | 30 | 70 |
| 30 | 29 | 71 |
| 31 | 30 | 70 |
Chance of precipitation in December
Yverdon-les-Bains gets around 110 mm of rain and snow over 13.6 wet days in December. 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 44% on the wettest days, and about 6 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 (%) | 42 | 43 | 43 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 43 | 43 | 43 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 |
| Snow chance (%) | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 18 | 19 | 19 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 |
| Rain chance (%) | Snow chance (%) | |
|---|---|---|
| 1 | 42 | 17 |
| 2 | 43 | 17 |
| 3 | 43 | 17 |
| 4 | 44 | 18 |
| 5 | 44 | 18 |
| 6 | 44 | 18 |
| 7 | 44 | 18 |
| 8 | 44 | 18 |
| 9 | 44 | 19 |
| 10 | 44 | 19 |
| 11 | 44 | 20 |
| 12 | 44 | 20 |
| 13 | 44 | 20 |
| 14 | 44 | 21 |
| 15 | 44 | 21 |
| 16 | 44 | 21 |
| 17 | 44 | 21 |
| 18 | 44 | 21 |
| 19 | 43 | 21 |
| 20 | 43 | 22 |
| 21 | 43 | 22 |
| 22 | 44 | 22 |
| 23 | 44 | 23 |
| 24 | 44 | 23 |
| 25 | 44 | 23 |
| 26 | 44 | 23 |
| 27 | 44 | 22 |
| 28 | 44 | 22 |
| 29 | 44 | 22 |
| 30 | 44 | 22 |
| 31 | 44 | 22 |
Humidity in December
Most of December feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, December 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 December
Winds average 8 km/h in December.
Across December, daily wind ranges from about 7 km/h on the calmest days to 8 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) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| 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 | 7 | calm |
| 2 | 7 | calm |
| 3 | 7 | calm |
| 4 | 7 | calm |
| 5 | 7 | calm |
| 6 | 7 | calm |
| 7 | 7 | calm |
| 8 | 8 | calm |
| 9 | 8 | calm |
| 10 | 8 | calm |
| 11 | 8 | calm |
| 12 | 8 | calm |
| 13 | 8 | calm |
| 14 | 8 | calm |
| 15 | 8 | calm |
| 16 | 8 | calm |
| 17 | 8 | calm |
| 18 | 8 | calm |
| 19 | 8 | calm |
| 20 | 8 | calm |
| 21 | 8 | calm |
| 22 | 8 | calm |
| 23 | 8 | calm |
| 24 | 8 | calm |
| 25 | 8 | calm |
| 26 | 8 | calm |
| 27 | 8 | calm |
| 28 | 8 | calm |
| 29 | 8 | calm |
| 30 | 8 | calm |
| 31 | 8 | calm |
Sunrise & sunset in December
Daylight runs from about 8 h 36 min at the start of December to 8 h 24 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 12 minutes over December. Sunrise moves from 8:05 AM to 8:25 AM, and sunset from 4:42 PM to 4:48 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) | 8.6 | 8.6 | 8.6 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.4 | 8.4 | 8.4 | 8.4 | 8.4 | 8.4 | 8.4 | 8.4 | 8.4 | 8.3 | 8.3 | 8.3 | 8.3 | 8.3 | 8.3 | 8.3 | 8.3 | 8.3 | 8.4 | 8.4 | 8.4 | 8.4 | 8.4 |
| Sunrise (AM) | 8:05 | 8:06 | 8:07 | 8:08 | 8:09 | 8:10 | 8:11 | 8:12 | 8:13 | 8:14 | 8:15 | 8:16 | 8:17 | 8:17 | 8:18 | 8:19 | 8:19 | 8:20 | 8:21 | 8:21 | 8:22 | 8:22 | 8:23 | 8:23 | 8:24 | 8:24 | 8:24 | 8:24 | 8:25 | 8:25 | 8:25 |
| Sunset (PM) | 4:42 | 4:41 | 4:41 | 4:41 | 4:40 | 4:40 | 4:40 | 4:40 | 4:40 | 4:40 | 4:40 | 4:40 | 4:40 | 4:40 | 4:40 | 4:40 | 4:41 | 4:41 | 4:41 | 4:42 | 4:42 | 4:43 | 4:43 | 4:44 | 4:44 | 4:45 | 4:45 | 4:46 | 4:47 | 4:47 | 4:48 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 8.6 | 8:05 | 4:42 |
| 2 | 8.6 | 8:06 | 4:41 |
| 3 | 8.6 | 8:07 | 4:41 |
| 4 | 8.5 | 8:08 | 4:41 |
| 5 | 8.5 | 8:09 | 4:40 |
| 6 | 8.5 | 8:10 | 4:40 |
| 7 | 8.5 | 8:11 | 4:40 |
| 8 | 8.5 | 8:12 | 4:40 |
| 9 | 8.4 | 8:13 | 4:40 |
| 10 | 8.4 | 8:14 | 4:40 |
| 11 | 8.4 | 8:15 | 4:40 |
| 12 | 8.4 | 8:16 | 4:40 |
| 13 | 8.4 | 8:17 | 4:40 |
| 14 | 8.4 | 8:17 | 4:40 |
| 15 | 8.4 | 8:18 | 4:40 |
| 16 | 8.4 | 8:19 | 4:40 |
| 17 | 8.4 | 8:19 | 4:41 |
| 18 | 8.3 | 8:20 | 4:41 |
| 19 | 8.3 | 8:21 | 4:41 |
| 20 | 8.3 | 8:21 | 4:42 |
| 21 | 8.3 | 8:22 | 4:42 |
| 22 | 8.3 | 8:22 | 4:43 |
| 23 | 8.3 | 8:23 | 4:43 |
| 24 | 8.3 | 8:23 | 4:44 |
| 25 | 8.3 | 8:24 | 4:44 |
| 26 | 8.3 | 8:24 | 4:45 |
| 27 | 8.4 | 8:24 | 4:45 |
| 28 | 8.4 | 8:24 | 4:46 |
| 29 | 8.4 | 8:25 | 4:47 |
| 30 | 8.4 | 8:25 | 4:47 |
| 31 | 8.4 | 8:25 | 4:48 |
Solar energy in December
Average shortwave solar energy reaching the ground each day in December, about 1.06 kWh/m² — the year's lowest.
For context, solar energy here swings from a low near 1.06 kWh/m² to a high of 5.82 kWh/m² in July across the year — December's 1.06 kWh/m² sits near the bottom.
| 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) | 1.2 | 1.2 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 |
| Level | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 1.2 | Dim |
| 2 | 1.2 | Dim |
| 3 | 1.1 | Dim |
| 4 | 1.1 | Dim |
| 5 | 1.1 | Dim |
| 6 | 1.1 | Dim |
| 7 | 1.1 | Dim |
| 8 | 1.1 | Dim |
| 9 | 1.1 | Dim |
| 10 | 1.1 | Dim |
| 11 | 1.1 | Dim |
| 12 | 1.1 | Dim |
| 13 | 1.1 | Dim |
| 14 | 1.1 | Dim |
| 15 | 1.1 | Dim |
| 16 | 1.1 | Dim |
| 17 | 1.0 | Dim |
| 18 | 1.0 | Dim |
| 19 | 1.0 | Dim |
| 20 | 1.0 | Dim |
| 21 | 1.0 | Dim |
| 22 | 1.0 | Dim |
| 23 | 1.0 | Dim |
| 24 | 1.0 | Dim |
| 25 | 1.0 | Dim |
| 26 | 1.0 | Dim |
| 27 | 1.1 | Dim |
| 28 | 1.1 | Dim |
| 29 | 1.1 | Dim |
| 30 | 1.1 | Dim |
| 31 | 1.1 | Dim |
Is December a good time to visit Yverdon-les-Bains?
Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
December is a weaker month for outdoor sightseeing in Yverdon-les-Bains.
What to pack for Yverdon-les-Bains in December
From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In December, Yverdon-les-Bains sees daytime highs around 5°C and nights near 1°C. Pack a warm layer. Worth having: a heavy coat and rain gear. About 14 days see rain.
UV index in Yverdon-les-Bains in December
Clear-sky midday UV in December peaks around 1. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Yverdon-les-Bains peaks around July 15 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 4 | 5 | 7 | 7 | 9 | 7 | 5 | 3 | 2 | 1 |
| Level | Low | Low | Moderate | High | High | Very high | Very high | High | Moderate | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Low |
| Mar | 4 | Moderate |
| Apr | 5 | High |
| May | 7 | High |
| Jun | 7 | Very high |
| Jul | 9 | Very high |
| Aug | 7 | High |
| Sep | 5 | Moderate |
| Oct | 3 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Where is Yverdon-les-Bains?
Yverdon-les-Bains sits at 46.8°N, 6.6°E, 438 m above sea level, in Switzerland. The nearest listed city is Pontarlier, 26 km away.
Topography around Yverdon-les-Bains
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Yverdon-les-Bains.
Within 3 km, the terrain around Yverdon-les-Bains has only modest variations in elevation — a maximum elevation change of 245 m around an average of 462 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,166 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,006 m.
The land around Yverdon-les-Bains is covered by cropland (31%) and trees (21%) within 3 km, trees (37%), cropland (29%) and grassland (22%) within 16 km, and trees (49%) and grassland (33%) 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 Yverdon-les-Bains (46.7785°, 6.6411°, elevation 438 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).