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If you want to boost your marketing strategy in 2021, you need a calendar to organize your campaigns. Here's an example that we hope will help you achieve your goals!


Marketing Calendar 2021


Key day for sales: Valentine's Day


Important day: International Women's Day


Easter is here! Take advantage of it


Tell her how much you love her this Mother's Day


Summer has arrived!


The Fourth of July is coming up


International Hashtag Day is in August


Back to school season!


Fall is here, and Halloween is around the corner


Get after Black Friday and Cyber Monday


Saving the best for last: Christmas, Hannukah, and more


Happy New Year! And don't forget the post-holiday sales



Start the year off on a good note...

  • In January everything is about New Year's resolutions and setting goals/objectives.
  • Start by wishing your users a Happy New Year and take the opportunity to give a final boost to your holiday sales campaign.
  • But above all, don't forget the sales! As you know, a lot of people plan to do their shopping on these dates, so plan your campaign carefully.

Dates to remember in January:

  • Jan 1st: New Year
  • Jan 18th: Martin Luther King Jr. Day
  • Jan 28th: International Data Privacy Day

Other special dates in January include Chinese New Year and International Data Protection Day.

Resources to prepare your marketing campaigns in January:

  • How to succeed with your email marketing during holiday sales
  • Trends in email marketing for 2020
  • 4 Email campaigns you have to try this new year

The New Year begins!

Martin Luther King Jr. Day



The excitement of the new year may have disappeared...

  • But that doesn't mean that February doesn't have some special dates that we can take advantage of.
  • February has one of the most important sales dates of the year: Valentine's Day.
  • February is definitely a month to consider when it comes to creating marketing campaigns

Dates to remember in February:

  • Feb 14th: Valentine's Day
  • Feb 14th: Carnival Sunday

According to the US National Retail Federation, Americans who gave Valentine's Day gifts spent a record $27.4 billion in 2020. The holiday continues to grow in the rest of the world as well.

Resources for your marketing campaigns in February:

  • 5 steps to make your Valentine's email campaign a success

Valentine's Day



March is for women

  • March is an important month for the struggle for women's rights. International Women's Day is March 8.
  • So take this opportunity to show a bit about your corporate side and share stories of the women in your company and how you support equality in the workplace.

Dates to remember in March:

  • March 8th: International Women's Day
  • March 17th: St. Patrick's Day
  • March 21st: International Down Syndrome Day

Another special date we have in our 2021 Marketing Calendar in March is St. Patrick's Day

Resources to prepare your marketing campaigns in March:

  • Branding & Email Marketing: How to share your brand values through email

International Women's Day



Watch out for April Fool's Day!

  • For some, Holy Week is a time to celebrate religious tradition. For others, this is more of a perfect excuse to eat Easter foods and chocolate eggs.
  • So, why not use it to unleash your creativity and hide a virtual Easter egg in your marketing campaigns to increase engagement this April?

Dates to remember in April:

  • April 1st: April Fool's Day
  • April 2nd: Holy Friday
  • April 5th: Easter Monday
  • April 12th: Ramadan Begins
  • April 22nd: Earth Day

Other special dates in April include Earth Day, Book Day, and Easter.

Resources to prepare your marketing campaigns for April:

  • Design tips for creative emails

April Fool's Day

Earth Day



Many countries celebrate Mother's Day in May...

  • Mother's Day (and of course the other 364 days of the year) is perfect for giving mothers lots of love, flowers, and chocolate. So remember to think about the mothers of the world when planning your special offers and promotions.
  • Another highlight is Star Wars Day. Whether you're a fan or not, there's no denying that this is a great social media occasion, so be sure to take advantage of it!

Dates to remember in May:

  • May 9th: Mother's Day
  • May 12th: Eid
  • May 17th: Tax Day
  • May 31st: Memorial Day

Other special dates included in our Marketing Calendar for 2021 in May are Tax Day and the start of Roland-Garros, for tennis lovers.

Resources to prepare your marketing campaigns in May:

  • May the 4th Be With You – An email for the Star Wars fans

Mother's Day

Memorial Day



It's getting hotter outside and summer is just around the corner...

  • For many companies, this means a drop in sales. People can't help but think about going on vacation. So don't be surprised if your marketing strategy's performance starts to decline.
  • Does this mean that you should stop your email marketing campaigns? Absolutely not!
  • In fact, summer can be the best time of year to stand out from your competitors and get in touch with your users.

Dates to remember in June:

  • June 19th: Juneteenth
  • June 20th: Father's Day
  • June 26th: LGBTQ Marriage Legalized

June is also Pride Month!

Resources to prepare your marketing campaigns in June:

  • Email marketing strategy for summer
  • 7 ideas to win the World Cup and the Euro Cup with your digital marketing


Father's Day

Anniversary of LGBTQ Marriage being legalized in the U.S.



Vacation season has finally arrived!

  • Although we advise you to plan ahead in June, you may find it difficult to keep in touch with your users during the summer.
  • Don't forget that there will be summer sales, a perfect time to boost sales that can be lower during the summer months.
  • The long-awaited Tokyo Olympic Games, delayed by one year, begin. An event that usually brings together the best brands.

Dates to remember in July:

  • July 4th: The 4th of July
  • July 17th: Emoji Day

Another special date in our 2021 Marketing Calendar in July is Emoji Day.

Resources to prepare your marketing campaigns in July:

  • Email marketing strategy for summer
  • How to succeed with your email marketing during summer sales
  • The impact of emojis in subject lines of emails

4th of July



August is usually a month of little activity in many countries...

  • Summer is in full swing, but as the weeks pass, more and more people start coming home from their vacations. Therefore, it's the perfect time to address them with offers or promotions they may have missed.
  • In addition to the closing of the Olympics, August is the month where we celebrate World Hashtag Day. An essential element in any social networking strategy you use.

Dates to remember in August:

  • August 6th: International Beer Day
  • August 8th: Olympics Closing Ceremony
  • August 19th: World Photography Day
  • August 23rd: World Hashtag Day

World Gamer Day is also celebrated in August, a day focused on another of the great disciplines that many marketers are striving to master to reach young and not so young people.

Resources to prepare your marketing campaigns in August:

  • Email marketing targeting: What is it and how does it work?

End of the Tokyo 2021 Olympics

World Hashtag Day



Back to school season!

  • In fact, September sometimes looks like a second January. New goals, new projects and new marketing opportunities. Kids (and adults!) can't wait to buy their backpacks, pens, pencils, and agendas for the new school year.
  • Take this into account and plan some marketing campaigns to reengage your customers after the summer with incentives such as special promotions, drawings and exclusive offers.

Dates to remember in September:

  • Sept. 6th: Labor Day
  • Sept. 18th: Oktoberfest
  • Sept. 21st: International Day of Peace

Oktoberfest 2021 begins.

Resources to prepare your marketing campaigns in September:

  • How to recover your email contacts after the summer

Rosh Hashanah

Labor Day



Halloween is just around the corner...

  • Autumn is officially here, and so is Halloween! This means that, both online and offline, monsters and other creatures could be around the corner, waiting to scare people.
  • With some of the most important dates of the year just around the corner, it's time to start planning the strategy for the Christmas season and add a festive touch to our campaigns.

Dates to remember in October:

  • October 10th: World Mental Health Day
  • October 11th: Indigenous Peoples' Day
  • October 31st: Halloween

We must not forget days such as World Smile Day or World Animal Day that can play a role in some digital marketing strategies.

Resources for preparing your October marketing campaigns:

  • Tips and ideas for your Halloween email campaign
  • The ultimate guide to Christmas emailing
  • 9 Mailjet email templates for this Christmas
  • Mistakes that will send your emails to spam this holiday season

Indigenous Peoples' Day




It is one of the strongest times of the year for B2C sales...

  • Thanks to Black Friday and Cyber Monday, so it's time to get your machinery up and running!
  • In other words, you should have these dates marked in red on your 2021 marketing calendar, as it's the best time for promotions and special offers before Christmas.

Dates to remember in November:

  • Nov. 1st: All Saints' Day
  • Nov. 26th: Black Friday
  • Nov. 29th: Cyber Monday

There are also other dates to note: All Saints' Day, World Shopping Day, World Gender Violence Day or Influencer's Day, for example.

Resources to prepare your marketing campaigns this November:

  • Black Friday: Create the perfect email marketing campaign
  • Why it's important to have a good infrastructure for Black Friday
  • The ultimate guide to Christmas emailing
  • 9 Mailjet email templates for this Christmas
  • Mistakes that will get your emails sent to spam

Cyber Monday

Black Friday



The end of the year and the most relevant thing is the Christmas campaign.

  • It’s the season of Christmas shopping online.
  • This is your chance to give you a final boost in the last quarter of the year, with campaigns and special offers for the holidays.
  • But in December, it's not only about selling, but also participating in the festive atmosphere and thanking your clients for spending the year with you.

Dates to remember in December:

  • December 24th: Christmas Eve
  • December 25th: Christmas
  • December 26th: Kwanzaa
  • December 31st: New Year's Eve

Another highlight in this month is World Day of Persons with Disabilities

Resources to prepare your marketing campaigns in December:

  • Send your Christmas emails with Mailjet
  • The ultimate guide to Christmas emailing
  • 9 Mailjet email templates for Christmas

New Year's Eve