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Graubünden, 1797 m · continuously updated
Lake water: 6.0 °C at the surface Simstrat model · Alplakes, Eawag · 14.11. 11h
Temperature · last 4 and next 28 hours
Updated hourly.
Two-week trend.
Sunrise –, golden light until –
Sunset –, golden light from –
–
European index, measured continuously.
Daily maximum — protection advised from 3.
Snow settles about 300 m below it.
Neighbouring municipalities, as the crow flies.
Today (Saturday 14 Nov) in Lake Sils: freezing fog, −5 to 1 °C, precipitation 0.0 mm (0 %), wind up to 9 km/h. Tomorrow: snow grains, −2 to 2 °C.
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Today | freezing fog | −5 °C | 1 °C | 0.0 mm | 9 km/h |
| Tomorrow | snow grains | −2 °C | 2 °C | 0.0 mm | 12 km/h |
| Mon 16 Nov | snow showers | −1 °C | 3 °C | 3.7 mm | 12 km/h |
| Tue 17 Nov | light rain | 1 °C | 5 °C | 1.6 mm | 24 km/h |
| Wed 18 Nov | rain | 0 °C | 4 °C | 2.1 mm | 17 km/h |
| Thu 19 Nov | light snow | 0 °C | 3 °C | 0.6 mm | 14 km/h |
| Fri 20 Nov | light snow | −9 °C | 0 °C | 0.9 mm | 17 km/h |
No rain expected in Lake Sils today or tomorrow. The 15-minute detail for the next two hours is shown on demand.
Saturday 14 Nov in Lake Sils, hour by hour: sunny in the morning, sunny in the afternoon, overcast in the evening. Low −5 °C around 05:00, high 1 °C around 14:00. No rainy hour.
| Time | Weather | Temp. | Precip. | Wind |
|---|---|---|---|---|
| 00:00 | sunny | −3 °C | 0.0 mm | 4 km/h |
| 01:00 | sunny | −4 °C | 0.0 mm | 4 km/h |
| 02:00 | sunny | −3 °C | 0.0 mm | 3 km/h |
| 03:00 | sunny | −4 °C | 0.0 mm | 5 km/h |
| 04:00 | sunny | −4 °C | 0.0 mm | 6 km/h |
| 05:00 | sunny | −5 °C | 0.0 mm | 4 km/h |
| 06:00 | sunny | −4 °C | 0.0 mm | 4 km/h |
| 07:00 | sunny | −4 °C | 0.0 mm | 3 km/h |
| 08:00 | sunny | −3 °C | 0.0 mm | 1 km/h |
| 09:00 | sunny | −2 °C | 0.0 mm | 3 km/h |
| 10:00 | sunny | 0 °C | 0.0 mm | 2 km/h |
| 11:00 | sunny | 0 °C | 0.0 mm | 7 km/h |
| 12:00 | sunny | 1 °C | 0.0 mm | 7 km/h |
| 13:00 | mostly sunny | 1 °C | 0.0 mm | 8 km/h |
| 14:00 | sunny | 1 °C | 0.0 mm | 6 km/h |
| 15:00 | sunny | 1 °C | 0.0 mm | 8 km/h |
| 16:00 | mostly sunny | 0 °C | 0.0 mm | 7 km/h |
| 17:00 | mostly sunny | −1 °C | 0.0 mm | 6 km/h |
| 18:00 | mostly sunny | −1 °C | 0.0 mm | 7 km/h |
| 19:00 | partly cloudy | −1 °C | 0.0 mm | 7 km/h |
| 20:00 | freezing fog | −1 °C | 0.0 mm | 6 km/h |
| 21:00 | overcast | −2 °C | 0.0 mm | 8 km/h |
| 22:00 | overcast | −2 °C | 0.0 mm | 9 km/h |
| 23:00 | overcast | −2 °C | 0.0 mm | 8 km/h |
Today, Saturday 14 Nov in Lake Sils: freezing fog, −5 to 1 °C, wind up to 9 km/h. No precipitation expected.
Tomorrow, Sunday 15 Nov, in Lake Sils: snow grains, −2 to 2 °C, wind up to 12 km/h. No precipitation expected.
Today in Lake Sils (1797 m): −5 to 1 °C. Tomorrow: −2 to 2 °C. Over the next 7 days, highs range from 0 to 5 °C, averaging 3 °C.
This weekend in Lake Sils: Saturday freezing fog, −5 to 1 °C; Sunday snow grains, −2 to 2 °C.
Yes: 3 days with precipitation are expected in Lake Sils over the next 7 days, 8.9 mm in total. Wettest day: Monday 16 Nov (3.7 mm).
Snowfall expected in Lake Sils (1797 m): Monday 16 Nov. Estimated total: 2.5 cm.
Today in Lake Sils (1797 m), the UV index peaks at 3 (low) around midday. No particular protection is needed. In the mountains, radiation rises by about 10 % per 1,000 m, and snow reflects up to 80 % of it.
The best day of the next 7 in Lake Sils: Saturday 14 Nov, freezing fog, up to 1 °C.
In Lake Sils (1797 m), the mean annual temperature is 2.7 °C. The warmest month is July (11.8 °C on average) and the coldest January (−6.3 °C). About 940 mm of precipitation falls per year, peaking in August (119 mm) with a minimum in February (33 mm). The sun shines for about 1766 hours a year, mostly in July (199 h). On average there are 204 frost days per year. The mean monthly maximum reaches 22.3 °C and the absolute minimum −21.0 °C.
Mean monthly precipitation (mm) — bar height relative to the wettest month.
| Month | Mean T | Abs. max | Abs. min | Precip. (mm) | Sunshine (h) | Frost days | Summer days |
|---|---|---|---|---|---|---|---|
| Jan | −6.3 °C | 5.6 °C | −20.4 °C | 46 | 120 | 31 | 0 |
| Feb | −5.9 °C | 7.5 °C | −21.0 °C | 33 | 121 | 28 | 0 |
| Mar | −2.3 °C | 9.9 °C | −17.0 °C | 44 | 147 | 30 | 0 |
| Apr | 1.2 °C | 12.5 °C | −11.5 °C | 60 | 150 | 25 | 0 |
| May | 5.9 °C | 17.2 °C | −4.3 °C | 86 | 164 | 10 | 0 |
| Jun | 9.8 °C | 21.3 °C | −0.5 °C | 107 | 186 | 2 | 0 |
| Jul | 11.8 °C | 22.3 °C | 1.4 °C | 102 | 199 | 0 | 0 |
| Aug | 11.7 °C | 22.0 °C | 1.3 °C | 119 | 181 | 0 | 0 |
| Sep | 7.9 °C | 18.5 °C | −2.2 °C | 91 | 155 | 4 | 0 |
| Oct | 4.0 °C | 15.4 °C | −7.0 °C | 100 | 138 | 17 | 0 |
| Nov | −0.9 °C | 11.1 °C | −12.8 °C | 98 | 103 | 26 | 0 |
| Dec | −4.5 °C | 6.2 °C | −17.2 °C | 54 | 102 | 31 | 0 |
| Year | 2.7 °C | 22.3 °C | −21.0 °C | 940 | 1766 | 204 | 1 |
At 1797 m the water stays cold all year (often below 15 °C in summer): swimming is for the brave, mostly in July–August. Check the air temperature, sunshine and UV index above to pick your slot.
Characteristic winds: Malojawind (SW, nachmittags, thermisch). Storm warnings on Swiss lakes are signalled by flashing lights (40 flashes/min = caution, 90 = storm).
The warmest month in Lake Sils is July, averaging 11.8 °C (1991–2020 normal). The coldest is January at −6.3 °C.
Lake Sils receives about 940 mm of precipitation a year. The wettest month is August (119 mm), the driest February (33 mm).
For warmth and sunshine: July (11.8 °C on average, 199 h of sun). The coldest month is January (−6.3 °C). Check the 15-day forecast above for your dates.
Source: MeteoSwiss open data (1991–2020 normals) — stations Segl-Maria (3 km, 1804 m), Piz Corvatsch (7 km, 3294 m), Samedan (16 km, 1709 m), adjusted to the elevation of Lake Sils (1797 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.