Covers Forecast: How Busy Will You Be?
You order today for the day after tomorrow, you write the rota a week ahead and your mise en place is done by mid-morning — three decisions that all start with the same number: how many guests are coming? Right now you guess it. This tool works it out: from your own history, with your own local weather in it, and with an honest range around it. It learns what rain costs YOUR room — not what an article thinks rain costs — and it tells you itself how often it misses.
A forecast is not a promise. This tool works from what you enter plus public weather data (Open-Meteo, CC BY 4.0); a road closure, a strike or a party that cancels are things it cannot see coming. Plan with the range, not with the last digit. Everything stays on this device — nothing is uploaded except your town's coordinates, and only if you set a location yourself.
How does the covers forecast work?
- 1
Enter a typical week
Seven numbers: how many guests on a normal Tuesday, how many on a Saturday, and which day you are closed. That is all it takes — from that moment there is already a forecast for the next seven days.
- 2
Log the real count each night
One number, five seconds. Every evening you enter replaces a piece of your estimate with a measurement: the tool picks up your weekly shape, your trend and your own busy days. Already using the daily cash-up sheet? Pull your history in with one click.
- 3
Read what it means for tomorrow
For each day you get the forecast with a range around it, the staff hours it implies, the revenue that goes with it and how much to buy. Print the week sheet for the office wall.
Why an average does not help you
The weather does something different at your place
"Rain costs you 15% of your covers" is a sentence from an article. For a waterside terrace it is wrong — there it is far worse. For a small winter dining room with eight tables it is wrong too: rain is exactly when it fills up. This tool measures YOUR sensitivity from YOUR numbers, and says so plainly while it still has too few of them.
Your busy days are in nobody's calendar
The town fair, the home game, the first sunny Saturday after winter, the school-holiday Sundays. Give such a day a name and the tool learns what that name is worth — and applies it the moment you put the name on a day still to come.
It tells you when it does not know
The tool grades itself: it re-forecasts every day in your history using only the days before it, and puts that next to the rule you already use — "same weekday, last week". If it is not beating that rule, it simply says so.
Frequently asked questions
Is this covers forecast free?
Yes, completely free, with no account and nothing to install. Your numbers stay in your own browser; nothing is uploaded. Only the weather lookup sends your town's coordinates to Open-Meteo, and only if you set a location yourself.
How many days do I need before it works?
None: the seven numbers of a typical week already produce a forecast. After about two weeks the tool reads your weekly shape from your own measurements, after four to six weeks it can measure a weather effect, and from around fifteen days it can grade itself against the rule of thumb. It tells you where it stands each time.
How is the weather taken into account?
Not with a fixed rule. Every logged day gets that day's weather attached — how much rain fell and how warm it was compared with normal for the season — and the tool looks for the relationship with what actually walked in. What comes out is your coefficient, not a figure from a study. As long as your history holds too few wet days, it applies no weather effect at all and says so.
Why a range instead of one number?
Because one number is always wrong. The range is the spread of the errors the model makes on your own days: four days out of five, reality lands inside it. That is what you plan with — the bottom is your minimum staffing, the top is what you still have to be able to absorb.
Does this replace my reservations?
No, and that is the point. Your reservations say what is booked right now; three days out that is only part of your room, and walk-ins are not in there at all. This tool says how many guests will come in total — bookings and the rest — so you can order and roster a week ahead instead of discovering on Wednesday that Saturday is full.
Does it work for a lunch spot or a bar?
Yes. The model looks at the pattern in your own numbers, not at the type of venue. If you would rather count covers, tickets or orders, enter those — the tool works with whatever you count, as long as you count it the same way every day.