March 2026 social media calendar
Editor’s Note:
Hi, I’m Layla, content producer here at Dotdigital and your go to for planning your social media calendar. As the season shifts, audiences are drawn to content that feels lively, colorful, and inspiring. This is the perfect time to experiment with playful ideas, seasonal themes, and engaging campaigns that capture attention and bring a sense of freshness to your feeds.
Below, you’ll find the key themes and highlights to help shape your March content. It’s packed with ideas to inspire your social posts and email campaigns, helping you engage your audience in fun ways without feeling overwhelming.
Important social media calendar dates in March
March 1 – St David’s day #StDavidsDay
March 1 – Self-injury awareness day #SelfInjuryAwarenessDay
March 1 – Zero discrimination day #ZeroDiscriminationDay
March 3 – World hearing day #WorldHearingDay
March 3 – World wildlife day #WorldWildlifeDay
March 4 – Holi #Holi
March 5 – World book day #WorldBookDay
March 8 – International women’s day #InternationalWomensDay
March 15 – Mother’s day (UK) #MothersDay
March 16 – Disabled access day #DisabledAccessDay
March 17 – St Patrick’s day #StPatricksDay
March 18 – Global recycling day #GlobalRecyclingDay
March 19 – Eid al-Fitr #EidAlFitr
March 20 – International day of happiness #InternationalDayOfHappiness
March 20 – First day of spring (Northern hemisphere) #FirstDayOfSpring
March 20 – World oral health day #WorldOralHealthDay
March 20 – Red nose day #RedNoseDay
March 22 – World water day #WorldWaterDay
March 28 – Earth hour #EarthHour
March 31 – International trans visibility day #TransDayOfVisibility
Themes for the month
Women’s history month #WomensHistoryMonth
Prostate cancer awareness month #ProstateCancerAwarenessMonth
Ovarian cancer awareness month #OvarianCancerAwarenessMonth
March 15 – Mother’s day
Mother’s day is a strong opportunity for brands to focus on appreciation-led content that feels genuine and people-first. Retail and lifestyle brands can highlight thoughtful gifting ideas or curated collections, while other brands may choose to spotlight stories around support, care, and everyday moments that resonate with their audience. From an internal perspective, it’s also a great moment to share culture content, whether that’s recognizing working parents, sharing personal reflections from team members, or celebrating the role of caregivers across the business. Mother’s Day can be a difficult time for some people, so be sure to be mindful of this in your campaigns. Opt-out campaigns are popular and we recommend having opt-outs for sensitive occasions in your preference centre as standard, all year round.
March 17 – St.Patrick’s day
St. Patrick’s day offers a fun opportunity for brands to lean into themed creativity, from limited-edition clothing drops to green-inspired product updates and visuals. Fashion and retail brands can use the day to introduce playful designs that feel celebratory and trend-aware, while social content can spotlight styling ideas or product highlights in a way that feels light and seasonal.
March 19 – Eid al-Fitr
Eid al-Fitr is an opportunity to celebrate the Islamic holiday and wish customers who observe it a blessed Eid. It’s also a time for brands to highlight curated gift baskets or thoughtfully selected collections designed for sharing and celebration. Retail and e-commerce brands can focus on elevated, intentional gifting that aligns with the spirit of generosity, using warm visuals and considerate messaging to connect without feeling overly promotional.
March 20 – International day of happiness
International Day of Happiness gives brands room to have a bit of fun, whether that’s leaning into happy hour-inspired content or light humor. Retail and lifestyle brands can also use the day to spotlight gift collections or thoughtful gestures designed to be shared with someone who makes you happy. Email campaigns are especially effective on this day, using thoughtful copy to deliver a small surprise in the inbox.
March 20 – First day of spring
The first day of spring is a chance for brands to celebrate renewal, fresh starts, and seasonal inspiration. Visuals can be bright and playful think blooming flowers and pastel palettes to instantly lift feeds and catch attention. Brands can also showcase spring launches, seasonal collections, or even simple lifestyle moments, like outdoor team activities or floral-themed setups.
March 20 – Red nose day
Red nose day is a chance for brands to support a great cause and have fun doing it by embracing humor and simplicity, using bold red visuals or playful moments to cut through busy feeds. Rather than polished campaigns, this day works best with participation-style content that shows support for the cause in an approachable way. It’s also an easy win for behind-the-scenes moments, capturing teams getting involved and sharing a lighter side of your brand.
March 20 – World oral health day
World oral health day is a great opportunity for brands to promote wellness in a simple, approachable way. Dental, lifestyle, and health-focused brands can share tips, fun facts, or quick how-to content that educates as well as spotlighting products or routines that make oral care easier. Brands can also launch new dental products or run giveaways to engage their audience and encourage participation.
March subject line ideas
March is a great time to focus on content that feels intentional, creative, and engaging. With the season shifting and energy building, the month offers plenty of opportunities to show up in ways that feel fresh. To help you plan with confidence, we’ve pulled together creative ideas inspired by some of March’s key social moments.
March inspired subject line ideas
Here’s some March-themed subject line ideas to inspire your campaigns:
World book day – Your next favorite page-turner is here📖
International women’s day – A little something to celebrate the women who inspire you
Red nose day – Join the fun that transforms lives!
St Patrick’s day – Treat someone to a St. Patrick’s Day pick me up ☘️
Eid al-Fitr – Gifts to make their Eid extra special
International day of happiness – A little happiness in your inbox today
First day of spring – Spring has sprung — here’s some inspiration🌱
World oral health day – Your smile deserves some love today
World water day – Join the conversation: protecting our most vital resource💧
These subject line ideas are a starting point but they work best when shaped with your brand’s voice. Add personality, emojis, or a touch of urgency to help them stand out and drive opens.
For an extra layer of inspiration, try tapping into AI-powered tools like Dotdigital’s WinstonAI, perfect for sparking fresh ideas, tweaking tone, or fine-tuning subject line length.
Spark engagement with your March marketing campaigns
March is a great time to keep social feeds feeling fresh while leaning into moments of creativity and seasonal relevance. From cultural events and awareness days to playful, light-hearted interactions, the month offers plenty of opportunities to engage audiences without feeling overwhelming.
