If your daughter has a birthday between November and February, you already know the problem. The garden is out. The park is out. Everything indoors within ten miles is booked, and the one thing she actually wants to do involves twelve children and a lot of glitter.
Here are the options that genuinely work in winter, from somebody who spends most weekends in other people's living rooms.
A pamper party at home
This is our own answer, so take it with the appropriate pinch of salt, but the reason it works in winter is simple: everybody stays warm, sits down, and nothing depends on the weather. A pamper party wants a living room, not a garden. It needs a floor and somewhere to plug in, and that is about it.
Ours run up to two hours, or up to two and a half on a Luxury package, and cover up to eight children with the option of more. For a January birthday when the light goes at four, two hours of warm, glittery indoor fun is a decent amount of party.
A baking or decorating afternoon
Cupcake decorating is the classic for a reason. It has a beginning, a middle and an end, everybody takes something home, and it occupies hands. The catch is the kitchen, which limits numbers to roughly whatever will fit around your table without anybody being elbowed.
If you are doing this yourself, do the baking the day before. Decorating is the party. Baking with eight children is not a party, it is an ordeal.
Film, duvets and popcorn
Underrated, cheap, and perfect for a smaller group of close friends rather than a whole class. Duvets on the floor, one film, popcorn, pizza. For a child who finds big parties overwhelming this is often the happiest option of the lot, and there is no shame in it being the easiest as well.
A hall and an entertainer
Sometimes you do need the space, particularly if you are inviting the whole class and your house has a sensible number of rooms rather than a generous one. Plenty of towns near us have halls used to children's parties, from the Weatherley Centre in Biggleswade to Park Hall in Harpenden.
Be honest with yourself about the total, though. Hall hire, an entertainer, food, decorations and party bags add up quickly, and you spend a chunk of the day setting up and clearing down in a cold room.
What we would avoid in winter
Anything that depends on a dry hour. Anything that means children arriving wet, because they will be miserable for the first twenty minutes and you will spend them hanging coats. And anything that needs a long car journey at the end of the afternoon, when everyone is tired and the roads are dark.
Timing a winter party
Start earlier than you would in summer. An eleven o'clock or a one o'clock start means everybody arrives and leaves in daylight, which matters more than it sounds when parents are driving to a house they do not know. A four o'clock winter party ends in the dark with eight children looking for their shoes.
Winter afternoons also make a two hour party feel exactly right. There is no sense of the day being cut short, because outside it has already gone.
Coats, wet shoes and the first ten minutes
Winter parties have an extra stage at the start that nobody plans for: the unpeeling. Eight children in coats, hats and wet shoes all arriving within five minutes of each other. Decide where it all goes before the doorbell goes, and it is a minute instead of ten.
What to do about Christmas birthdays
Children born in December carry a lifelong grievance about it, and they are right to. The two things that help are making the party clearly separate from Christmas, with nothing red and green anywhere near it, and moving it away from the fortnight where everybody else is at a nativity or a work do.
Early December or the week between Christmas and New Year both work. The gap week in particular is a quiet, strange, slightly bored stretch when children are desperate for something to happen and parents are desperate for an activity.
Making an indoor party feel like an occasion
Winter has one advantage over summer: you can light a room. Lamps rather than the big light, fairy lights along a shelf, curtains shut. It costs nothing, it photographs beautifully, and it turns a living room into somewhere that feels deliberately set up for her.
The winter date advantage
One genuinely useful thing about a winter birthday: outside of the weeks immediately before Christmas, dates are easier to get than in the summer term. If her birthday is in mid January or early February, you are usually choosing from a fuller diary than a June birthday would give you.
And because we cover Bedfordshire, Hertfordshire and Buckinghamshire with travel included, a dark Saturday in a village between towns is no harder for us to reach than a Saturday in Dunstable. The weather is our problem, not yours.