This post may contain affiliate links. If you buy through them, I may earn a small commission at no extra cost to you, which helps keep the site running. All opinions are my own. Written by Molly, mum of two. Last updated: July 2026.

It’s day one (or two, if you’re in England and the last bell only just went) and it’s already happened: two kids, one Wednesday, and a full-blown war over whose turn it is on the good bean bag. If you’re reading this mid-referee-duty with a raisin box in one hand, you’re not doing anything wrong. Six weeks of siblings sharing every waking hour, with none of the structure school usually provides, is genuinely hard – and it catches almost every family out in the first fortnight.

Recent research on UK families backs this up: 59% of parents say the summer holidays are the most challenging time of year, ahead of Christmas, and 88% say the six-week break puts real financial and emotional pressure on the household. A big chunk of that pressure isn’t the cost of days out – it’s the low-level, all-day noise of “she started it” and “he won’t leave me alone.” This guide is a practical, realistic plan for getting through it without losing your mind (or refereeing every single squabble yourself).

Why Siblings Fight More in the Summer Holidays

It isn’t your imagination, and it isn’t bad behaviour in the way it can feel in the moment. A few things collide at once in the school holidays:

• Too much togetherness. Term time gives siblings natural breaks from each other – different classrooms, different friendship groups, different parts of the day. In the holidays that structure disappears overnight.
• No routine to lean on. Children, especially under-10s, regulate their behaviour far better when they know what’s coming next. Unstructured days are exhausting for their nervous systems, not just yours.
• Boredom looks like fighting. A genuinely bored child will often provoke a sibling rather than sit with the discomfort of having nothing to do – it’s more stimulating than the alternative.
• Competing for your attention. With you managing work, meals, and logistics, children can escalate to get noticed – even negative attention is attention.
• Tiredness and hunger. Later bedtimes, hotter nights and less predictable meals mean children are running on a shorter fuse than during term time.

The good news: because the causes are mostly predictable, so are the fixes. You don’t need to referee every argument – you need to reduce how often the conditions for fighting show up in the first place.

1. Give the Day a Loose Shape (Without Over-Scheduling)

You don’t need a colour-coded timetable, but a predictable rhythm – breakfast, an activity, outside time, lunch, quiet time, free play – gives children something to hold onto. Even naming the shape of the day out loud at breakfast (“this morning we’re doing the garden water play, then lunch, then a quiet bit, then park”) cuts down on the low-grade anxiety that often tips into squabbling by mid-morning.

If you’re short on ideas to fill that shape without spending anything, our 15 Free Things to Do With Kids at Home This Summer is a good one to keep bookmarked, and for the inevitable rained-off afternoon, our 10 Rainy Day Activities That Actually Work covers the “everyone is stuck inside and losing it” scenario specifically.

2. Build in Separate Time – Every Single Day

This is the single biggest lever most parents don’t use enough. Siblings who get zero time apart will find friction, even if they love each other dearly. It doesn’t need to be elaborate: one child does 20 minutes of solo play or screen time while the other has one-on-one time with you, then swap. If you have a baby or toddler in the mix as well as an older child, this also protects your younger one’s nap or quiet-play window from getting hijacked by an older sibling’s energy.

If space is the issue, even a “your corner, their corner” rule for 20 minutes after lunch can reset the afternoon.

3. Give Each Child Some One-on-One Time

Ten minutes of undivided attention with each child, most days, does more to prevent fighting than almost anything else on this list. A lot of sibling conflict is really a competition for you. It doesn’t have to be a big outing – reading one book together, doing a puzzle, or just sitting with them while they talk at you about Minecraft counts. Children who’ve had a “full cup” of attention that morning are far less likely to provoke a brother or sister to get it later.

4. Reduce Competition Over Resources

A lot of flashpoints are entirely predictable: the same toy, the same seat, the same iPad. Where you can, remove the scarcity rather than relying on children to share well under pressure (a skill even adults struggle with). Duplicate the cheap stuff that causes constant fights – a second set of water pistols, a timer for shared screen time, two identical drinks bottles. It feels like giving in, but it’s really just removing unnecessary friction from your day.

5. Teach a “Cooling Off” Signal

Rather than jumping in as referee every time, agree on a simple signal in a calm moment – a word, a hand gesture, a designated “chill spot” with cushions – that means “I need space right now.” Practise it when everyone’s happy, not mid-meltdown. Over time, children as young as four or five can start using it themselves, which takes you out of the referee role for the small stuff and saves your energy for when it genuinely matters.

6. Let Some Arguments Play Out

Not every squabble needs a parent verdict. If nobody is being hurt, stepping back and letting siblings negotiate (even messily) teaches conflict resolution you can’t teach by intervening every time. A useful rule of thumb: intervene for safety, coach for fairness, but don’t referee every single dispute over whose Lego brick that is.

7. Use Screen Time as a Tool, Not a Guilt Trip

Screens get a bad reputation in the fighting conversation, but used deliberately they’re one of the most effective ways to create the separate time from point two – especially on the days you simply need 45 minutes to make a work call or get dinner on. Decide your limits in a calm moment rather than in the heat of a meltdown, and don’t feel guilty about it: a bit more tablet time on a hard day is a completely reasonable trade for a calmer house. We cover this in more detail, alongside a full weekly plan, in Surviving the 6-Week Summer Holidays on a Budget.

8. Get Out of the House

Fighting often escalates fastest in a small, familiar space where everyone knows exactly which buttons to push. A change of scene – even just the local park for an hour – resets the dynamic almost immediately, and it doesn’t need to cost anything. Our Free Days Out With Kids This Summer guide has 15 no-cost ideas if the budget is already stretched by six weeks off school.

9. Managing a Wide Age Gap (0-10)

If you’re juggling a baby or toddler alongside a school-age child, remember they aren’t fighting over the same things a same-age pair would. Often the “fight” is actually a mismatch of needs – your ten-year-old wants a complex game, your toddler wants to knock the tower down. Where you can, give the older child a genuinely separate activity (a den, a craft table, headphones and an audiobook) rather than expecting them to entertain or tolerate a much younger sibling for hours at a time. A little acknowledgement that it’s harder being the eldest goes a long way too.

A Realistic Weekly Rhythm

You don’t need to follow this exactly, but as a loose template:

• Morning: One planned activity (free or low-cost) plus 20-30 minutes of individual time with each child
• Midday: Lunch, then a genuine “apart” window – quiet time, screens, or solo play
• Afternoon: Outside time or a change of scene – garden, park, or a free day out
• Early evening: Something everyone does together that isn’t a screen – dinner prep, a board game, garden play

The pattern matters more than the specific activities. Predictability plus daily separate time plus daily connected time is doing most of the work here.

When It’s More Than Normal Squabbling

Occasional fighting is completely normal sibling behaviour and doesn’t need fixing. It’s worth paying closer attention if there’s a consistent pattern of one child being frightened of another, physical aggression that’s increasing rather than settling, or if a child seems to be deliberately isolated or targeted rather than just clashing. If that sounds familiar, it’s worth a conversation with your GP or health visitor rather than something to manage alone with holiday activities.

Frequently Asked Questions

Why do my kids fight more in the holidays than during term time?
Mostly proximity and lack of routine. School gives siblings natural breaks from each other and a predictable structure to the day. Remove both at once and low-level conflict tends to rise, even between children who get on well normally.

How much “apart time” do siblings actually need each day?
There’s no strict rule, but even 20-30 minutes of genuinely separate activity once or twice a day makes a noticeable difference for most families, especially paired with one-on-one time with a parent.

Should I intervene every time my children argue?
Not necessarily. Step in for safety or if it’s clearly unfair, but letting minor disputes play out (with you nearby, not absent) helps children build their own conflict-resolution skills over time.

Is it bad to use more screen time to stop the fighting?
No. Used with intention – to create a breathing space for you or a genuine apart-time window for them – a bit more screen time during the holidays is a reasonable, practical trade-off, not something to feel guilty about.

What’s the quickest way to defuse a fight that’s already started?
Separate first, talk after. Trying to establish “who started it” in the heat of the moment rarely works. Physically separate the children, let everyone’s heart rate come down, then talk it through once things are calm.

My children are very different ages (toddler and school-age) – does this still apply?
Yes, though the “fighting” often looks more like mismatched needs than genuine conflict. Giving your older child a separate, age-appropriate activity protects both children’s play and reduces the friction that comes from expecting a ten-year-old and a toddler to want the same thing.

The Bottom Line

Six weeks of togetherness is a big ask for any sibling pair, and a certain amount of fighting is completely normal, not a sign you’re getting the holidays wrong. A loose daily rhythm, a bit of guaranteed apart time, and some one-on-one attention for each child will do more than any amount of referee-ing in the moment. Go easy on yourself – if today was chaos, tomorrow is a fresh six-hour stretch to try again.