Snugnight

Pfadfinderlandheim Stiefvater

Bayern, Germany

Tonight: low 4 °C, heavy dew.

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 14°C. The coldest are in January, when 1 night in 10 drops to -8°C. Frost is common in January, February, March, April, November and December.

Typical nightCold night (1 in 10)
  1. Jan-2°C -8°CBag comfortable to -7°C · frost 67% · rain or snow 48% of days
  2. Feb-1°C -6°CBag comfortable to -5°C · frost 60% · rain or snow 45% of days
  3. Mar1°C -4°CBag comfortable to -3°C · frost 43% · rain or snow 41% of days
  4. Apr4°C -2°CBag comfortable to -1°C · frost 18% · rain or snow 37% of days
  5. May9°C 4°CBag comfortable to 5°C · frost 1% · rain or snow 38% of days
  6. Jun13°C 9°CBag comfortable to 10°C · frost 0% · rain or snow 38% of days
  7. Jul14°C 11°CBag comfortable to 12°C · frost 0% · rain or snow 43% of days
  8. Aug14°C 10°CBag comfortable to 11°C · frost 0% · rain or snow 37% of days
  9. Sep11°C 6°CBag comfortable to 7°C · frost 0% · rain or snow 31% of days
  10. Oct7°C 3°CBag comfortable to 4°C · frost 1% · rain or snow 42% of days
  11. Nov2°C -3°CBag comfortable to -2°C · frost 30% · rain or snow 39% of days
  12. Dec-1°C -4°CBag comfortable to -3°C · frost 59% · rain or snow 44% 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 lookSaturday, September 26, 22:00 to 07:00

Cold from below: pad

Your setup looks borderline for this night

You may feel chilly from around 05:00.

The cold comes from underneath: your pad does not insulate enough from the ground.

Best change

Add insulation underneath until you have about R2.5 in total (estimate).

  • A closed-cell foam mat under your pad adds about R2.
  • Folded blankets or spare clothes help if you have nothing else.
Change my setupEnter my exact gear ratings

This is based on typical values for the gear types you picked, so treat it as an estimate.

  • Low outside4°C
  • Moistureheavy dew, bring everything inside
  • Windcalm

Your night

  1. 22:00 to 05:00ComfortableAir around you 11 to 6°C, heavy dew from 23:00.
  2. 05:00 until morningChilly. Add a layerAir around you 6 to 5°C, heavy dew.
Every hour
  • 22:0011°Ccomfortable
  • 23:009°Ccomfortable, heavy dew
  • 00:009°Ccomfortable, heavy dew
  • 01:008°Ccomfortable, some dew
  • 02:008°Ccomfortable, some dew
  • 03:007°Ccomfortable, some dew
  • 04:006°Ccomfortable, heavy dew
  • 05:006°Cchilly, heavy dew
  • 06:005°Cchilly, heavy dew
  • 07:005°Cchilly, heavy dew

Times are local time at your spot (GMT+2).

What works tonight

The gear this night calls for, for someone who sleeps like you.

  • You have this

    Sleeping bag

    Comfort 5°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.

    Amazon

Before you sleep

  • Put on a warm layer and a hat before about 05:00, 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.
  • 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
Air around you
5°C
Your bag's comfort rating
4°C
Cold ground through what you lie on
+2 °C
Your comfort limit
6°C

1 °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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