Bertha Creek Campground
Tonight: low 31 °F, frost likely, rain likely, strong gusts.
Tonight
Rough nightMonday, November 9, 10 p.m. to 7 a.m.
Your setup looks borderline for this night
You may feel chilly from around 10 p.m.
Your sleeping bag is not warm enough for this night.
Best change
Sleep in a warm layer, a hat and dry socks, and take a hot water bottle.
This is based on typical values for the gear types you picked, so treat it as an estimate.
Your night
- 10 p.m. until morningChilly. Add a layerAir around you 40 to 35°F, frost, strong gusts from 5 a.m., rain likely (up to 42 mph).
Every hour
- 10 p.m.37°Fchilly, frost, rain likely
- 11 p.m.36°Fchilly, frost, rain likely
- midnight36°Fchilly, frost, rain likely
- 1 a.m.35°Fchilly, frost, gusty, rain likely
- 2 a.m.35°Fchilly, frost, gusty, rain likely
- 3 a.m.35°Fchilly, some dew, gusty, rain likely
- 4 a.m.36°Fchilly, some dew, gusty, rain likely
- 5 a.m.37°Fchilly, some dew, strong gusts, rain likely
- 6 a.m.39°Fchilly, some dew, strong gusts, rain likely
- 7 a.m.40°Fchilly, some dew, strong gusts, rain likely
This spot sits about 88 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-9).
What works tonight
The gear this night calls for, for someone who sleeps like you.
- Missing
Sleeping bag
Comfort 35°F or colder
Usually sold as a 26° bag. The number in a bag's name is the limit, not the comfort.
- 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 10 p.m., 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 3 a.m. in the cold is worse.
- Sleep in dry clothes, not the ones you wore all day. Damp fabric pulls heat out of you.
- Stake out every guyline and point the low, narrow end of the tent into the wind.
- Gusts get strong during the night. Do not pitch or park under dead trees or big dead branches.
- Rain is possible from about 10 p.m. Keep the rain fly on and bring shoes and packs inside.
- Bring shoes, clothes and electronics inside. Anything left out will be wet by morning.
How we estimated this
At the coldest hour (2 a.m.):
- Outside at your spot
- 32°F
- Warmth your shelter holds
- +4 °F
- Air around you
- 36°F
- Your bag's comfort rating
- 39°F
- Cold ground through what you lie on
- +4 °F
- Your comfort limit
- 43°F
7 °F 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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