Iuliia Nesterenko

Technical Writer

135+ Email Content Ideas to Fill Your Marketing Calendar in September

To create any email campaign, you should consider a lot of factors: come up with a creative design, prepare offers, build the right segments, configure product recommendations, etc. September emails are no exception.

When the back-to-school season is over but it's still too early to start with Thanksgiving, marketers need to look for other opportunities to connect with customers and keep the conversation going. And although September may look poor in email content ideas, there is actually plenty of reasons to reach out.

Good causes to make your recipients’ inbox happy in September:

  • Customers’ birthday;
  • Your company’s birthday;
  • International and local holidays;
  • Anniversaries;
  • Sports events, like championships, marathons, races, etc.;
  • Birthdays of famous people;
  • Invention dates;
  • Historical events;
  • Festivals and parades.

Email Content Ideas

There are different kinds of events: international, national, local, typical of a particular region or continent. An international brand should know that not all of them are celebrated around the world: people in China may not know about La Tomatina - a food fight festival organized in Spain every year. On the other hand, not many Spanish are aware of Dragon Boat Festival held in China annually over 2,000 years.

However, even if your audience isn’t familiar with this or that event, it won’t hurt if you introduce them to your subscribers. Just make sure you pick up the right email marketing content applicable to your business. For example:

  • Stylish celebrities’ birthdays deserve a mention in campaigns by clothing, jewellery, perfume, or beauty companies;
  • World championships, motor racing, and different tournaments can be a good reason for sports gear, nutrition supplement, gym equipment and even insurance companies to get in touch;
  • International and national coffee, bakery, chocolate and any other sweet days look as if they were specially designed for coffee shops, confectioneries and bakery magazines.
  • Any event dedicated to eco-friendly activities is a good opportunity to remind your customers that you contribute to nature conservation as well (of course, in case you really do).
  • If there is a special day dedicated to the kind of product or service you provide, don’t miss a chance to come up with a specially-designed campaign.
  • Your customers’ birthday is an event you simply can’t leave unnoticed. Pleasant gifts, warm wishes and festive images are more than welcome.
  • Your company’s birthday also makes a good email marketing idea. Tell your story, boast a bit of your recent achievements, introduce new products or reveal plans for the future - it’s your birthday and it’s up to you to pick up the content you want to share.

Day Holidays and Events to Look for in September 2021

And now let's move from general calendar to particular September email ideas. You definitely don't need to use all of them, but I'm sure you'll find in the list the event resonating with your brand. And even if Eat an Extra Dessert Day or National Milkshake Day are local holidays, so what? A few people would refuse to celebrate whatever that involves eating sweets or drinking milkshakes. Take a look at other email marketing content ideas to include in your welcome campaigns, reactivation emails or newsletters, and take your email marketing to a whole new level.

Sep 1

Back to School Day;

Knowledge Day;

Arbor Day (Peru);

Disaster Prevention Day (Japan);

Constitution Day (Slovakia);

Independence Day (Uzbekistan);

Journalist Day (Taiwan);

Veterans Day (Poland);

Wattle Day (Australia);

No Rhyme or Reason Day (US).

Back to School email example

Sep 2

World Coconut Day;

Notaries Day (Ukraine);

Democracy Day (Tibet);

Patrol Police Day (Russia);

National Blueberry Popsicle Day (US).

Sep 3

Army Day (Moldova);

Independence Day (Qatar);

Flag Day (Australia).

Sep 4

World Beard Day (first Saturday of September);

International Taekwondo Day;

Art Break Day (first Friday in September);

Custom's Service Worker's Day (Moldova);

Rescuer's Day (Armenia);

National Wildlife Day (US);

Cooperation Day (Iran);

Newspaper Carrier Day (US).

Sep 5

International Day of Charity;

Global Day of Action for the Amazon;

Teachers' Day (India);

Lake Baikal Day (Russia);

Day of Belarusian Written Language (first Sunday of September);

Father's Day (AU, NZ), (first Sunday of September);

Cheese Pizza Day (US).

Sep 6

Labor Day (US, Canada), (first Monday of September);

Unification Day (Bulgaria).

Labor Day email example

Sep 7

International Day of Clean Air for Blue Skies;

Brazilian Independence Day;

National Threatened Species Day (Australia);

Salami Day (US).

Sep 8

International Literacy Day;

World Physical Therapy Day;

National Day (Andorra);

Victory Day (Pakistan);

Volunteer Day (Spain).

Sep 9

International Beauty Day;

International Sudoku Day;

Children's Day (Costa Rica);

Emergency Services Day (UK);

Chrysanthemum Day (Japan).

Sep 10

World Suicide Prevention Day;

Gibraltar National Day;

Children's Day (Honduras);

Teachers' Day (China).

Sep 11

World First Aid Day ( second Saturday of September);

Cinema Day (Ukraine);

Emergency Number Day (US);

National Day (Catalonia);

Teachers' Day (Argentina);

Day of Sobriety (Russia).

Sep 12

International Crochet Day;

United Nations Day for South-South Cooperation;

Grandparent's Day (US, Canada, Estonia, Philippines), (second Sunday of September);

Father's Day (Latvia);

Education Sunday (UK);

Cinema Day (Iran);

Fjord Day (Denmark), (second Sunday of September).

Sep 13

International Programmers' Day;

National Peanut Day (US);

National Cachaça Day (Brazil);

Roald Dahl Day.

Sep 14

Hindi Day;

Engineer's Day (Romania);

Children's Day (Nepal).

Sep 15

World Lymphoma Awareness Day;

International Day of Democracy;

International Dot Day;

Libraries Day (Belarus);

Knowledge Day (Azerbaijan).

Last post

Sep 16

International Day for the Preservation of the Ozone Layer;

Yom Kippur;

Juliet’s birthday in Verona;

Mexican Independence Day;

Guacamole Day (US).

Sep 17

International Country Music Day;

Clean Up the World;

World Patient Safety Day;

Rescuer's Day (Ukraine);

Teacher's Day (Honduras);

Constitution Day (US).

Sep 18

World Water Monitoring Day;

Software Freedom Day;

International Read an eBook Day;

International Equal Pay Day;

Independence Day (Chile);

National Music Day (Azerbaijan);

Astronomy Day (Armenia);

Inventor Day (Ukraine);

Navy Day (Croatia);

Pharmaceutical Worker's Day (Ukraine);

Persian Literature and Poetry Day (Iran);

Island Languages Day (Okinawa);

Juice Day (Russia); 

Batman Day.

Sep 19

International Talk Like a Pirate Day;

Constitution Day (Nepal);

Museum Day (Thailand).

Sep 20

Freedom of Speech Day;

National Youth Day (Thailand);

Universal Children's Day (Germany);

Respect for the Aged Day (Japan), (third Monday of September).

Sep 21

World Gratitude Day;

Zero Emissions Day;

World Alzheimer's Day;

International Day of Peace;

Independence Day (Armenia);

Arbor Day (Brazil);

Stephen King’s Birthday;

Sep 22

World Car-Free Day;

World Rhino Day;

Autumnal Equinox Day (Japan);

Hobbit Day;

Business Women's Day (US);

Sep 23

International Day of Sign Languages;

International Celebrate Bisexuality Day;

National Day (Saudi Arabia);

Teachers' Day (Brunei);

Checkers Day (US);

Sep 24

Heritage Day (South Africa);

Punctuation Day (US);

Sep 25

Comic Book Day (US);

Butterbrod Day (Germany), (last Friday in September);

Will Smith’s Birthday;

Sep 26

World Contraception Day;

World Environmental Health Day;

Astronomy Day;

National Pancake Day (US);

Serena Williams’ Birthday;

European Day of Languages (European Union);

National Good Neighbor Day (US);

Sep 27

World Tourism Day;

World Rivers Day (last Sunday in September);

Tourism Day (Ukraine);

Crash a Can Day (US);

Sep 28

International Right to Know Day;

World Rabies Day;

Freedom from Hunger Day;

Czech Statehood Day;

Yom Kippur (Israel);

Teacher's Day (Taiwan);

Ask a Stupid Question Day (US)

Confucius' Birthday;

Sep 29

International Coffee Day;

World Heart Day;

Firefighter's Day (Iran);

Inventors' Day (Argentina);

Coffee Day in an email campaign

Sep 30

International Translation Day;

International Podcast Day;

Botswana Day;

Day of Libraries (Ukraine);

Adoption Day (Ukraine);

Hot Mulled Cider Day (US);


With this short guide, you won’t rack your brains looking for September email marketing ideas. I’ve listed over 150 content ideas, but hope you know that creativity knows no limits. Take your time and explore for new quirky ideas and opportunities to engage with your subscribers. Also, make sure to check the date of a particular event as they may differ for various countries and even for various regions within one country. And follow our blog for more inspiring email ideas: October is coming. By the way, feel free to share in comments your own thoughts on how to spice up fall email campaigns. Visuals are also more than welcome.

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Iuliia Nesterenko

Technical Writer

A technical (but still very creative) writer at eSputnik with a strong focus on design, current digital marketing trends, and new solutions for email automation.

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