40 original ideas to organise the perfect 40th birthday party

You only turn 40 once in a lifetime, and it’s a significant enough age to dedicate time to a celebration worthy of calling your very own. It’s time to take stock of your life and, above all, to celebrate in style with friends and family. If you’re wondering how to organise a unique party for a special adult birthday , here you’ll find ideas that will make sure this is an unforgettable day for everyone.

Why celebrate your 40^th birthday with a unique and unforgettable party?

Reaching 40 is a milestone. We no longer refer to it as “thirty-something”, but rather a new stage marked by maturity and vitality. A 40^th birthday party isn’t just an excuse to get together; it’s also a way to remember the past and start this new decade with positive energy. That’s why more and more people are choosing to organise a special event, whether that’s an intimate soirée or a rip-roaring party.

Original themes for 40^th birthday parties

We’re not all the same, and therefore not all parties are the same. Everyone has their own tastes and preferences when it comes to organising a 40^th birthday party. Are you looking for inspiration to throw a party that’s as original as you are? Here are several inventive ideas for a 40^th birthday party that never fail:

80s or 90s theme

Travel back in time with a nostalgic party that features all the greatest hits from your teens. Retro decorations, photos with props from that time period, and neon colours.

All-white or black tie dress code

If you see yourself as a little more sophisticated, then ask guests to stick to an all-white or black tie dress code. Ideal for dinner on the terrace, in the garden, or even a fancy restaurant.

Tropical, Ibizan, or summer party (even if it’s January!)

Transform your 40^th birthday into an eternal summer with flower garlands, cocktails, and great music. Perfect for both indoors and outdoors, with an atmosphere that positively exudes good vibes, positive energy, and summer.

Hollywood: from Harry Potter to Game of Thrones

For movie and TV series fans, a Hollywood party is the perfect excuse to dress up as iconic characters. Photos on the red carpet, prizes for best costume, and music from incredible soundtracks.

Exceptional activities to celebrate your 40^th birthday

If you’re not a party person, there are other unique ways to turn your birthday into an amazing and unforgettable experience. Take note!

Celebrate your birthday at PortAventura World

If you’re looking to celebrate a 40^th birthday in an original setting, you can’t go wrong with PortAventura World. Rides, shows, fine dining, and themed hotels will make this celebration definitely one to remember. Whether you prefer to spend this special occasion with friends or family, here you’ll find a unique atmosphere with everything you need in one place. Imagine the chance to ride Dragon Khan with all your friends and family, then enjoy a fantastic lights and pyrotechnics show at the end of the day. Or having dinner with your loved ones in a China restaurant, blowing out the candles, and then sleeping in a Far West-themed hotel. Sounds great, doesn’t it? In addition, PortAventura World is ideally located if you want to make other plans in Tarragona  or visit beautiful tows near Salou .

Relaxing weekend with spa at a boutique hotel

If you prefer something a little more relaxing, a weekend spent at a boutique hotel with its own spa could be the perfect gift. A wellness experience to unwind and celebrate turning 40 in peace.

Cooking workshop, wine tasting, or gastronomic experience    

Another great idea for a 40^th birthday celebration is to organise a gourmet experience. This could entail anything from learning new recipes in a cooking workshop to a wine or craft beer tasting. An ideal option for lovers of fine food and drink.    

Entertainment ideas to get the party going  

• Photos with personalised props
• Karaoke with hits from your generation
• Active and group party games
• DJ or live music
• Surprise video with messages from friends and family
• Dance contest
• Musical bingo
• Bar with bespoke cocktails
• Magic show

Decorations and ambience that make a difference

Decoration is what gives each event its own personality. Giant balloons with the number 40, fairy lights, or decorative elements that reflect your personality will make the difference between an ordinary party and your party.

Food and drink

Add some variety to your food: from an informal cocktail gathering with nibbles, to a more elegant dinner with starter, main course, and dessert. Don’t forget to include vegetarian or vegan options and, of course, a cake big enough to hold all forty candles.

Additional touches that will make your party even more special

• Custom-designed digital invitations
• Provide a gift or physical souvenir for guests
• Customised photo booth for fun photos of everyone in attendance
• Collaborative playlist in which each friend contributes their favourite song
• Icebreaker games
• Say a few words of thanks and raise a toast for such a memorable occasion

Intimate gathering or wild party? How to adapt these ideas to any budget

It doesn’t matter if you’re planning an intimate gathering with those closest to you or a huge party, all these ideas can be adapted. If money is a little tight, focus on food and drinks, and whatever’s left over can be spent on decorations. If you have more cash to splash, then consider entertainment options such as live music or a magician. Party games can cost little to no money at all; with a little imagination you can prepare those yourself.

FAQs for 40^th birthday parties

How far in advance should you start planning?

If you’re holding an off-site event, i.e., not in your own home, it’s best to start preparing everything 1-2 months in advance so you can reserve the venue, book the caterers, and sort out any extras you might need for your celebration.

What if I want something different from a typical party?

You can plan a short trip, a relaxing day at the spa, a visit to a theme park, or a cultural outing instead of a party. The important thing is that it suits your personality and tastes.

Is it better to hire help or do it all yourself?

It really depends on the size of the party. With good planning, you can successfully handle a small or medium-sized party on your own, but you may need a hand if you’re planning on inviting more than 50 people. For larger affairs, we recommend hiring a party planner or a company to help with the arrangements, saving you time and stress.

What if I don’t want a party but I still want to celebrate?

There are alternative ways to celebrate your birthday without having to organise a party. Other options include a weekend getaway , a concert, or dinner with friends.

You only turn 40 once in a lifetime. Make the occasion a priority and celebrate with good company and in your favourite place. We recommend PortAventura World, for its vast range of options and different ways to celebrate at our resort. So, if right now, you’re 39 years old, we hope to see you very soon!