Silvaplana
Tonight: low 7 °C, frost likely.
Nights by month
Night lows from 2016 to 2025: a typical night, and the cold one that comes 1 night in 10.
The mildest nights are in August, typically 4°C. The coldest are in January, when 1 night in 10 drops to -20°C. Frost is common in January, February, March, April, May, June, July, August, September, October, November and December.
- Jan-14°C -20°CBag comfortable to -19°C · frost 100% · rain or snow 40% of days
- Feb-11°C -18°CBag comfortable to -17°C · frost 100% · rain or snow 38% of days
- Mar-11°C -16°CBag comfortable to -15°C · frost 100% · rain or snow 40% of days
- Apr-7°C -13°CBag comfortable to -12°C · frost 97% · rain or snow 42% of days
- May-3°C -7°CBag comfortable to -6°C · frost 92% · rain or snow 52% of days
- Jun1°C -2°CBag comfortable to -1°C · frost 39% · rain or snow 47% of days
- Jul3°C 0°CBag comfortable to 1°C · frost 14% · rain or snow 52% of days
- Aug4°C -1°CBag comfortable to 0°C · frost 17% · rain or snow 50% of days
- Sep (this month)0°C -5°CBag comfortable to -4°C · frost 46% · rain or snow 39% of days
- Oct-3°C -8°CBag comfortable to -7°C · frost 80% · rain or snow 36% of days
- Nov-9°C -16°CBag comfortable to -15°C · frost 98% · rain or snow 44% of days
- Dec-12°C -17°CBag comfortable to -16°C · frost 100% · rain or snow 38% of days
| = 0°C
History: ERA5 and ERA5-Land reanalysis via Open-Meteo, corrected to the site's elevation. Bag rating: the comfort rating that keeps you warm in a tent on 9 of 10 nights that month.
Tonight
Worth a lookFriday, September 25, 22:00 to 07:00
Your setup looks borderline for this night
You may feel chilly from around 01:00.
Your spot sits in a hollow where cold air collects at night.
Best change
Move 20 to 50 meters higher, away from the valley floor or creek.
- On clear, calm nights it is often several degrees warmer there.
This is based on typical values for the gear types you picked, so treat it as an estimate.
Your night
- 22:00 to 01:00ComfortableAir around you 8 to 6°C.
- 01:00 until morningChilly. Add a layerAir around you 5 to 4°C, frost from 02:00.
Every hour
- 22:008°Ccomfortable
- 23:007°Ccomfortable
- 00:006°Ccomfortable
- 01:005°Cchilly
- 02:004°Cchilly, frost
- 03:005°Cchilly
- 04:005°Cchilly
- 05:004°Cchilly
- 06:004°Cchilly
- 07:004°Cchilly
This spot sits about 60 m below the land around it. On clear, calm nights cold air pools here, so expect it colder and wetter than the forecast.
Times are local time at your spot (GMT+2).
What works tonight
The gear this night calls for, for someone who sleeps like you.
- Missing
Sleeping bag
Comfort 3°C or colder
The comfort rating on the label, not the limit, which is about 5 °C lower.
- You have this
Underneath you
R1.5 or more
The R-value says how well a pad keeps the cold ground out.
Before you sleep
- Put on a warm layer and a hat before about 01:00, or go to bed already wearing them.
- Eat a proper meal with some fat before bed. Your body keeps burning it through the night.
- Pee right before you get in your bag. Getting out at 03:00 in the cold is worse.
- Sleep in dry clothes, not the ones you wore all day. Damp fabric pulls heat out of you.
- Your spot sits lower than the ground around it. On a clear, calm night cold air drains into spots like this, so expect it colder and wetter than the forecast. If you can, move a little higher up, away from the creek or valley floor.
- Bring shoes, clothes and electronics inside. Anything left out will be wet by morning.
How we estimated this
At the coldest hour (02:00):
- Outside at your spot
- 7°C
- Warmth your shelter holds
- +2 °C
- Clear-sky cooling
- −1 °C
- Low spot
- −4 °C
- Air around you
- 4°C
- Your bag's comfort rating
- 4°C
- Cold ground through what you lie on
- +2 °C
- Your comfort limit
- 6°C
2 °C short, so you will likely be cold.
Assumptions
- Bag categories use typical ratings as sold: summer about 50 °F (10 °C), 3-season about 30 °F (-1 °C), winter about 15 °F (-9 °C). The number in a bag's name is usually its lower limit, so its comfort rating is about 9 °F (5 °C) warmer.
- What you lie on: foam mat about R2, thin air pad about R1.5, insulated pad about R3.5, winter pad R5 and up, van bed about R4, air mattress about R0.5. Colder ground needs a higher R-value.
- Shelters hold a few degrees early in the night and less towards morning. Wind and clear, calm skies take warmth away.
- Weather: Open-Meteo forecast for your spot, on a grid of a few kilometers, corrected to its height.
- These are rules of thumb, not measurements. People and gear vary.
A forecast, not a promise. Mountains, valleys and water make their own weather, so trust what you see and feel on site. Terms and liability
Checked for a double-wall tent, a 3-season bag and a thin air pad. Check your own gear here.
More about this campground · View on OpenStreetMap