Looking to plan your social media posts with more purpose? 

This month-by-month social media marketing days guide highlights key marketing dates throughout the year – which is ideal for creating timely and relevant content that connects with your audience and strengthens your brand’s presence online. So check our our social media marketing days list…

January

• 1 Jan – New Year’s Day: everybody is in that new beginnings mindset
• 4 Jan – World Braille Day: for posts about accessibility and inclusive messages
• 6 Jan – National Shortbread Day: food and fun is high share potential 
• 20 Jan – National Cheese Lovers’ Day: quirky, relatable and memorable
• 23 Jan – National Pie Day: another foody angle for brands
• 25 Jan – Burns Night (Scotland): cultural hook especially relevant if your audience includes Scots
• 27 Jan – International Holocaust Memorial Day: serious tone, powerful for awareness‑led brands
• 31 Jan – Hot Chocolate Day: feel‑good, seasonal, comforting content

February

• 1 Feb – Yorkshire Pudding Day: quirky and local
• 4 Feb – World Cancer Day: serious awareness day
• 5 Feb – World Nutella Day: sweet, shareable
• 14 Feb – Valentine’s Day: commercial gold for most brands
• 15 Feb – Singles Awareness Day: flip the script on Valentine’s – clever angle
• 17 Feb – Random Acts of Kindness Day & Shrove Tuesday/Pancake Day and Lunar New Year (2026)
• 20 Feb – Love Your Pet Day: great for lifestyle/pet brands
• 27 Feb – UK National Chilli Day: spice it up! 

March

• 1 Mar – St David’s Day (Wales): if you’re Welsh or celebrating Welsh culture
• 2‑8 Mar – British Pie Week: fun campaign window to follow Pie Day in January
• 5 Mar – World Book Day: content-friendly for educational or literary angles
• 8 Mar – International Women’s Day: major awareness day and strong for inclusive branding
• 14 Mar – Pi Day (3.14): quirky, fun and numerically themed
• 15 Mar – Mother’s Day: sentimental with high‑engagement
• 17 Mar – St Patrick’s Day: green, festive with global appreciation
• 18 Mar – World Recycling Day: sustainability angle
• 20 Mar – International Day of Happiness and First Day of Spring: dual‑theme and warm‑up for brighter months ahead

April

• 1 Apr – April Fool’s Day: light, fun and play on brand’s personality
• 3 Apr-6 Apr – Easter Weekend – major family/travel/retail window
• 7 Apr – World Health Day: wellness and health‑focused content opportunity
• 10 Apr – National Siblings Day: sentimental with relational angle
• 21 Apr – National Tea Day: A UK favourite with cosy visuals
• 22 Apr – Earth Day: sustainability, nature, climate content
• 23 Apr – St George’s Day (England): If you’re English or celebrating Engliosh culture

May

• 4 May – Early May Bank Holiday & Star Wars Day (“May the Fourth…”): potential for dual opportunity
• 11 May – Eat What You Want Day: indulgence post idea
• 12 May – International Nurses Day: health or care angle
• 13 May – World Cocktail Day: for lifestyle and hospitality content
• 18‑23 May – Chelsea Flower Show: visually rich content for garden/travel/retail brands
• 25 May – Spring Bank Holiday: long weekend content potential
• 29 May – National Biscuit Day: sweet treat, light post

June

• 5 Jun – World Environment Day: eco‑friendly content
• 8 Jun – World Oceans Day: marine / travel / conservation angle
• 18 Jun – International Picnic Day: fun, outdoorsy brand moment
• 19 Jun – Clean Air Day: important for wellness/environment brands
• 21 Jun – Father’s Day + Summer Solstice (longest day): multiple hooks
• 23 Jun – International Women in Engineering Day: STEM/brand‑purpose alert
• 30 Jun – World Social Media Day: perfect for your agency to show off

July

• 1 Jul – International Joke Day: brand personality post
• 7 Jul – World Chocolate Day: sweet and highly visual
• 17 Jul – World Emoji Day: for playful and interactive content
• 24 Jul – International Self‑Care Day: wellness / me‑time positioning
• 30 Jul – International Day of Friendship: good for community content
• 31 Jul – National Avocado Day: nutrition or food angles

August

• 3 Aug – Summer Bank Holiday (Scotland) only: regional variation
• 8 Aug – International Cat Day: pet‑friendly and light
• 9 Aug – National Book Lovers Day: literary lifestyle tie‑in
• 15 Aug – National Relaxation Day: slow‑down messaging – especially over the summer holidays / out-of-office
• 17 Aug – National Cupcake Day: sweet, fun indulgence
• 26 Aug – International Dog Day: another pet opportunity
• 27 Aug – National Burger Day: burger lovers unite
• 31 Aug – Summer Bank Holiday (UK excluding Scotland): final Summer push

September

• 5 Sep – National Charity Day: cause‑driven content
• 19 Sep – Talk Like a Pirate Day: quirky engagement idea
• 21 Sep – International Day of Peace: calm and meaningful
• 23 Sep – September Equinox (Autumn Begins): seasonal transition
• 27 Sep – World Tourism Day: travel and hospitality brands get a win
• 29 Sep – World Heart Day: sentimental, can also push health-related content

October

• Entire month – Black History Month (UK): inclusion, education, culture
• 1 Oct – International Coffee Day: caffeine lovers rejoice
• 2 Oct – World Smile Day: happy, human and highly-shareable
• 5 Oct – World Teachers’ Day: education-focussed
• 10 Oct – World Mental Health Day: serious, purpose‑led content required
• 16 Oct – World Food Day: for food brands with opportunity to help good causes / community engagement
• 25 Oct – British Summer Time Ends (Clock Change): timing note for scheduling
• 26 Oct – Pumpkin Day: pre‑Halloween build‑up fun
• 31 Oct – Halloween: visual‑heavy and engagement‑rich

November

• Entire month – Movember: men’s health awareness
• 1 Nov – World Vegetarian Day: food/lifestyle angle
• 5 Nov – Guy Fawkes Day/Bonfire Night: UK cultural moment
• 8 Nov – Remembrance Sunday: respectful tone, solemn
• 13 Nov – World Kindness Day: feel‑good content with purpose
• 14 Nov – King Charles III’s Birthday: royal angle (in a UK context)
• 27 Nov – Black Friday: retail blitz begins
• 30 Nov – Cyber Monday: digital sales peak

December

• 1 Dec – World AIDS Day: serious awareness day
• 5 Dec – International Volunteer Day: meaningful and community-driven
• 10 Dec – Christmas Jumper Day: fun, charitable and share‑worthy
• 25 Dec – Christmas Day: huge volume, high expectation
• 26 Dec – Boxing Day: post‑holiday sales drive
• 28 Dec – Boxing Day Bank Holiday in UK: scheduling note
• 31 Dec – New Year’s Eve: wrap‑up and look ahead content

How to Use This Calendar (and Make It Pop)

• Pick your dates ahead: map your campaigns around 3‑5 of these key days per month rather than scrambling last minute
• Tailor the vibe: quirky food days (like Biscuit Day, Cupcake Day) work wonderfully for lifestyle brands, while awareness / cultural days (like Mental Health Day) demand thoughtful messaging
• Visuals matter: make sure each post has a strong visual hook that fits the theme (colours, mood, brand tone) and stands out in the feed
• Don’t over‑sell (unless you want to): some days are perfect for community‑building and engagement, not hard‑sell. Balance content accordingly
• Scheduling & automation: use your tools to map these in your content calendar so nothing falls through the cracks
• Track: check what types of these themed posts deliver best engagement and refine accordingly

So there you have it – a full year’s social media marketing days in a nutshell for brands wanting to stay relevant, timely, and creative on social media for 2026.

Download our handy PDF guide here.

Ben

Caffeine Creative are an experienced team based in the Cardiff area. We help with graphic design, web development, company values, social media, branding and more. To know more please contact us.