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April newsletter ideas for creative marketing campaigns in 2025

Reading Time: 7 minutes

If you send regular newsletters to your customers, you know how important it is to stay current and relevant. Utilizing special occasions and month-specific themes is a great way to do that.

If you’re looking for April newsletter ideas and examples to inspire your spring email newsletters, then look no further. We’ve compiled a list of various holidays and occasions in April 2025, along with newsletter ideas to help you engage your subscribers. 

Read on to find the best ideas.

Put these April newsletter ideas into action with Omnisend’s powerful email marketing tools.

April newsletter ideas for month-long occasions

If you want a monthly theme for April to keep your marketing calendar filled with content ideas, then pick from one of these month-long occasions.

World Autism Awareness Month

In April, various communities unite to  ensure that those with autism have the resources and support they need to thrive. It’s all about spreading awareness, sharing knowledge, and advocating for a more inclusive society for individuals with autism.

Planet Earth Month

It’s the time to spread awareness about environmental problems threatening our planet. This global initiative has a specific theme every year, and the theme for 2025 is “Planet vs. Plastics.” This is a good time to educate people on sustainability and share what your brand does to stay that way. 

Stress Awareness Month

Stress is a global issue faced by people from all walks of life. In April people spread awareness about how prevalent it is, its negative impact, and ways to reduce it. This month is all about helping people live a healthier, stress-free life.

National Volunteer Month

In the United States, April is celebrated as National Volunteer Month. This is the time when people across the country volunteer their services for the causes they support. 

Businesses join in the spirit of giving back by supporting a cause or encouraging their customers to volunteer.

National Pet Month

National Pet Month is celebrated in April in the UK, and May in the US. This is an initiative that encourages people to appreciate and show love to their pets. 

It’s the perfect occasion for pet products companies to promote their business, as people love to pamper their pets.

Need help designing your April newsletter to celebrate pets? Use our pet-themed newsletter templates to get started.

Most popular occasions in April

In this section, we’ll provide you with a comprehensive list of day-long, week-long, and month-long occasions in April 2025:

  1.  April 1: April Fool’s Day, National Greeting Card Day
  2.  April 2: World Autism Awareness Day, International Children’s Book Day
  3.  April 3: World Party Day, National Inspiring Joy Day
  4.  April 4: International Carrot Day, National Burrito Day
  5.  April 5: Walk to Work Day, National Self-Care Day
  6.  April 6: International Pillow Fight Day, National Library Day
  7.  April 7: World Health Day, National Beer Day
  8.  April 8: National Zoo Lovers Day
  9.  April 9: National Unicorn Day
  10.  April 10: Siblings Day, National Farm Animals Day
  11.  April 11: National Pet Day
  12.  April 13: International Plant Appreciation Day
  13.  April 15: Tax Day
  14.  April 18: High Five Day, Get to Know Your Customers Day
  15.  April 20: Picnic Day
  16.  April 21: National Tea Day, World Creativity and Innovation Day
  17.  April 22: Earth Day
  18.  April 25: Take Your Child to Work Day
  19.  April 26: Arbor Day
  20.  April 27: Stop Food Waste Day
  21.  April 1-7: Laugh at Work Week
  22.  April 7-13: National Library Week
  23.  April 11-15: Consumer Awareness Week
  24.  April 20-25: Allergy Awareness Week

If you need help designing engaging emails for any of these occasions, Omnisend’s newsletter templates are perfect for you. Use these to save time and send newsletters that captivate your audience and drive them to action.

April newsletter ideas

Now, let’s dig into some great April newsletter ideas and examples.

Pick the ideas that work best for your business, and don’t forget to follow newsletter best practices for the best results.

1. Planet Earth Month

For sustainable and eco-conscious brands, this is the perfect theme for April newsletters. It gives you a chance to bring attention to your company’s eco-friendly practices and its commitment to sustainability.

Newsletter idea: Showcase your eco-friendly products and sustainable business practices. You can also share tips with your customers and educate them about environmental causes.

Example: Pact

Earth Month newsletter example Past
Image via Really Good Emails

Pact is a clothing brand known for their sustainable business practices. They even market themselves as “Earth’s Favorite™ Clothing Company.” 

For Planet Earth month, Pact keeps their newsletter simple by offering a sitewide discount to celebrate the occasion.

2. National Pet Month

This is the time when people show their love for their pet companions. This is great for brands that sell products for pets, as their core audience is actively shopping during this time.

Newsletter idea: Curate a gift guide and offer discounts to encourage your customers to shower some love on their pets. Share pictures of cute pets to evoke emotion and connect with your customers on your shared love of pets.

Example: Native Pet

Pet Month newsletter idea by Native
Image via Really Good Emails

This newsletter by the dog supplements brand Native Pet plays on emotions by sharing a heartwarming picture of a person with their dog. Instead of directly promoting their products, Native Pet directs subscribers to their blog to read about how they can care for their dogs.

This strategy educates people before encouraging them to purchase products that will make their dogs healthier.

3. National Volunteer Month

Most people believe in some social, environmental, or animal welfare causes. And April is the month when many of them actively participate in volunteer work. It’s a good opportunity for businesses to show their support for the causes they believe in.

Newsletter ideas: Share a list of organizations where your subscribers can volunteer and educate them on the importance of doing so. You can also demonstrate any volunteering programs you run, and how you encourage your employees to get involved.

Example: Patagonia

Image via Really Good Emails

Patagonia Action Works is the clothing brand’s initiative to help people find grassroots organizations where they can volunteer. 

This newsletter encourages its customers to give back to the community and volunteer for a cause they support. It also provides a CTA that allows them to find a place where they can volunteer. 

4. Celebrate Diversity Month

Starting in 2004, April has been deemed Celebrate Diversity Month. The goal is to celebrate diverse cultures and traditions globally. This is a great theme that you can use for all your April newsletters.

Newsletter ideas: Celebrate diversity by educating your customers on topics related to diversity, showing your diverse team, or interviewing people from diverse backgrounds.

Example: Clevr Blends

Clevr Diversity Month newsletter idea
Image via Really Good Emails

Beverage brand Clevr Blends celebrates cultural diversity by interviewing a local artist in their April newsletter. 

They use phrases like “unity in diversity” to further emphasize the commitment to be an inclusive and diverse brand. This helps build a positive brand image and makes Clevr Blends relatable to more diverse groups of people.

5. April Fool’s Day (April 1st)

This is one of the most fun occasions in April that all types of businesses can leverage for their email newsletters. Many brands celebrate this day by pranking their customers in one way or another.

Newsletter ideas: Make an over-the-top announcement or offer a deal that’s too good to be true to prank your customers. Or take a reverse take on it and make the day stress-free for your customers, just like Quartz did in the example below.

Example: Quartz

Quartz April Fool's Day newsletter idea
Image via Really Good Emails

The media company Quartz uses a different tactic to engage their audience on this day by not participating in the pranking tradition. Instead, they acknowledge that pranks can be stressful and offer a generous 50% discount to cheer them up. 

This is a great newsletter idea as it breaks tradition and has a unique take on an occasion.

6. Unicorn Day (April 9th)

This day celebrates these mythical, horse-like creatures who appear in works of fantasy. Unicorns are considered pure and kind creatures and this day celebrates those qualities.

Newsletter ideas: There are many newsletter ideas for celebrating Unicorn Day, from using a rainbow color palette to celebrating the positive qualities of Unicorns.

Example: PrettyLittleThing

PrettyLittleThing Unicorn Day newsletter idea
Image via Really Good Emails

In this newsletter, women’s apparel brand PrettyLittleThings celebrated Unicorn Day by using a brink pink color scheme and offering their customers a discount code. 

To make the email interactive, they asked people to click on the unicorn to unveil the discount code. This turns a simple promotion into a fun, gamified experience.

15 Ideas for April newsletter subject lines 

Subject lines can be the deciding factor in whether your audience will open an email or skip it. Using a good email subject line generator can help you grab attention and stand out in crowded inboxes.

These April email subject lines will get you inspired: 

  • Foolishly good deals inside – no joke!
  • Tax Day countdown: Get prepared with our expert tips! ?
  • ? Celebrate Earth Day every day with our eco-friendly products
  • Purr-fect deals to celebrate National Pet Month?‍⬛
  • ? Spring into savings! April deals just for you ?
  • ? Spring clean with 20% off everything!
  • ?️ April showers bring spring flowers…and exclusive deals!
  • Spring into savings with these unbelievable offers
  • Sneak peak: See what’s blooming in our April collection! ?
  • The world is in full bloom, and so is our collection ?
  • Today, nothing’s on sale: April Fool’s
  • Ring, ring! Hello? Spring?
  • Your April wellness update: Tips, tricks, and treats! ?
  • Weekend wonders: Unwrap your April surprise! ?
  • Spring into April savings with unbelievable offers

Wrap up

There you have it — an extensive list of occasions, themes, ideas, and examples for your April newsletters.

Hopefully, you’ve found ideas that you can use for your newsletters this month. Don’t forget to use compelling email subject lines and newsletter designs to engage your audience.

Omnisend can help with all aspects of email marketing, from design to campaign execution. If you’re looking for an all-in-one email marketing solution, you should explore what Omnisend has to offer.

Use Omnisend’s engaging and high-converting newsletter templates for your April newsletters.
Bernard Meyer
Article by

Bernard is the Sr. Director of Communications & Creative at Omnisend, with a passion for good research, helping ecommerce businesses with their marketing automation needs, and beating absolutely everyone in Mario Kart 64.