Campingplatz Forelle
Tonight: low 4 °C, frost likely.
Tonight
Rough nightFriday, September 25, 22:00 to 07:00
Your setup looks too cold for this night
Expected from around 00:00.
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 00:00ComfortableAir around you 9 to 6°C, heavy dew.
- 00:00 to 05:00Chilly. Add a layerAir around you 5 to 2°C, frost from 02:00.
- 05:00 until morningCold. Your setup is not warm enoughAir around you 1 to 0°C, frost.
Every hour
- 22:009°Ccomfortable, heavy dew
- 23:006°Ccomfortable, heavy dew
- 00:005°Cchilly, heavy dew
- 01:005°Cchilly, heavy dew
- 02:004°Cchilly, frost
- 03:004°Cchilly, frost
- 04:002°Cchilly, frost
- 05:001°Ccold, frost
- 06:000°Ccold, frost
- 07:000°Ccold, frost
This spot sits about 66 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 -1°C or colder
The comfort rating on the label, not the limit, which is about 5 °C lower.
- Missing
Underneath you
R2.5 or more
The R-value says how well a pad keeps the cold ground out.
- Worth adding
Also useful
A bag liner
Adds a few degrees to the bag you already own.
Before you sleep
- Put on a warm layer and a hat before about 00:00, 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.
- Fill a sturdy water bottle with hot (not boiling) water, check the lid does not leak, and put it in your bag by your core or feet.
- 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.
- Open the tent vents and keep the door zip open a bit at the top. Some condensation inside is normal on a night like this, so bring a small towel to wipe it off.
How we estimated this
At the coldest hour (07:00):
- Outside at your spot
- 4°C
- Warmth your shelter holds
- +1 °C
- Clear-sky cooling
- −1 °C
- Low spot
- −4 °C
- Air around you
- 0°C
- Your bag's comfort rating
- 4°C
- Cold ground through what you lie on
- +2 °C
- Your comfort limit
- 6°C
6 °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.
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