What do you do if it rains on the day of a party?

Run your dry-window plan: shuffle the running order so outdoor activities land in the driest forecast hours, move food and seating under cover first, and shift child-friendly kit like bouncy castles or soft play indoors if the hall or house allows. Light rain rarely stops a party; wind is the real spoiler.

Can a bouncy castle be used in the rain?

In light rain, yes, with the shower cover on and a pause-and-wipe routine so the bed does not get slippery. In heavy rain, or gusts above 24mph, it should come down or move indoors. Most 12ft castles fit village halls, which is the standard British wet-weather answer.

When should I check the weather forecast before a party?

Five days out for the first serious look, two days out to commit to plan A or plan B, and the evening before to confirm details with suppliers. Check hourly rain probability rather than the daily symbol, and check gust speeds too if anything inflatable is booked.

What is a good indoor backup plan for a garden party?

A provisionally booked village hall is the classic answer: cheap, often free on the dates you need, and roomy enough for a 12ft bouncy castle, soft play and party games. Failing that, a marquee or gazebos over food and seating, with the house as the retreat, keeps a garden party alive.

The Wet Weather Party Plan (Because This Is England)

Rain-proofing a party takes three decisions, made early. Decide your plan B space before you send invitations, choose entertainment that works indoors as well as out, and pick suppliers whose weather policy lets you move or cancel without losing money. Do those three and a wet forecast becomes an inconvenience instead of a disaster. British weather forecasts firm up about five days out, so that is when the plan goes into action.

The five-day rule

UK forecasts are close to guesswork beyond a week but become genuinely useful about five days out, and rain timing (morning versus afternoon) firms up within 48 hours. So run your weather decisions on that clock. Five days before: check the forecast properly, looking at rain probability by the hour and, if anything inflatable is coming, gust speeds. This is the day to alert your plan B venue and warn suppliers you might switch things around, while everyone still has room to help. Two days before: the forecast is now roughly trustworthy, so commit. Move the party indoors, shuffle the running order to put outdoor things in the dry window, or carry on as planned. The day before: confirm final arrangements with every supplier, because they are planning van routes that evening. What does not work is deciding on the morning. By then marquees are gone, halls are booked and hire vans are loaded, and your options have shrunk to umbrellas and optimism.

Plan B is a place, not a hope

Every outdoor party needs a named indoor answer before invitations go out. The candidates: your own house with furniture pushed back (fine for a dozen small children, grim for thirty), a village hall, which in most of England still costs surprisingly little for an afternoon and often sits empty on Sundays, a school hall for school-adjacent events, or a marquee or gazebo bridging garden and house. Village halls are the underrated option, since many take provisional bookings you can confirm or release in the final week, and most of the classic hire items work indoors: a 12ft bouncy castle fits the majority of halls, soft play was practically built for them, and a candy floss machine does not care about weather. If the party simply cannot move, rig cover instead: hire or borrow gazebos, keep the sides on the windward edge, and plan the food indoors even if the fun stays out. The one plan that always fails is the sunny-day plan with no second page.

Kit that shrugs off rain, and kit that will not

Sort your hire list into three piles. Rain-happy: giant garden games are all-weather and play fine on damp grass, soft play lives indoors anyway, and popcorn and candy floss machines just need a table under cover. Rain-workable: a bouncy castle handles light showers with its rain cover on, and moves indoors happily if the hall has height for it (most village halls take a 12ft unit), but heavy rain plus children in wet socks makes the bed slippery, so use a cover-and-pause approach in showers. Rain-averse: anything electrical and open, so photo booths, magic mirrors, 360 booths, LED dance floors and light-up letters all need a genuinely dry space: a hall, a barn or a marquee with a proper floor, not a gazebo with ambitions. When you book, tell the company your wet-weather plan and they can bring the right kit. FunFast carries ballast for anchoring on hard standing and indoors, for example, but only if the booking notes say the castle might move inside.

Rain-proofing a garden party

If the party stays in the garden, fight the water on three fronts. Overhead: gazebos over the food table and the seating first, because wet guests recover but wet sandwiches do not, and put the sides on whichever edge the wind favours. Underfoot: after a wet week a lawn turns to mud under traffic, so lay a path of boards, rubber mats or even cardboard along the routes people actually walk, especially between the back door and the entertainment. Power: rain and extension leads need managing, so keep connections off the ground, use outdoor-rated leads and covers, and let your hire company handle their own cabling, which any decent one insists on anyway. Then work with the weather instead of against it: move the running order so outdoor time lands in the driest forecast window, keep towels and a box of cheap ponchos by the door, and accept that children, given permission, treat rain as a feature. It is the adults who need the gazebo.

The kids party rain plan

Children do not mind rain; they mind cancellation. So the kids party rain plan is mostly about containment and burning energy indoors. If you have moved to a hall, you have space, and a bouncy castle or soft play corner indoors burns the same energy the garden would have. If you are stuck in the house with a dozen guests, plan a station rotation: three activities in three spots (a craft table, a game, a film corner for decompression), rotating every 20 minutes, because the movement between stations is half the crowd control. Keep one genuinely physical release valve: musical bumps, a balloon keepy-uppy tournament, or, for the brave, ten supervised minutes outside in wellies with towels waiting. Swap the garden treasure hunt for one hidden around the house. And protect the two fixed points that make it a party regardless of weather: food together at a table, and cake with candles and everyone singing. A child who bounced, ate and blew out candles had the party, whatever the sky did.

What a good weather policy looks like

You can outsource most weather risk simply by booking companies with grown-up weather policies, so check before paying a deposit. The good version looks like this: the company watches the forecast with you, contacts you the day before if wind or heavy rain threatens an outdoor set-up, and offers a free date change, an indoor switch or a full refund when the weather makes the hire unusable. That last part matters for inflatables, because gusts above 24mph mean a castle should not operate outdoors at all, so a company charging you anyway is charging for a castle you cannot safely use. The poor version keeps deposits regardless, goes quiet when the forecast turns, or leaves the call entirely with you. Ask one question by email before booking: what happens to my money if it is blowing a gale on the day? A supplier who answers plainly, as FunFast does with a free swap or refund on weather it cannot beat, has removed the biggest stress in outdoor party planning.