September: Holidays + social media ideas

September. Ah, the beginning of fall. The time of year when the air might start to get a little crisp (jk, it's probably still 80 degrees), pumpkin spice makes its grand return, and the will to live re-enters our bodies as summer humidity finally bows out. Yay, September! We’re glad it’s nearly here.

Not only does this September bring with it cozy vibes and sensible sweater weather (the natural antidepressants), it also presents numerous opportunities for businesses to engage audiences through social media by leveraging various holidays and observances. Sorry for the quick professional turn there, but it had to be done.

Let’s get into it. Here's a curated list of notable September holidays, along with content ideas and example posts tailored for different industries.

1. Labor Day (September 1)

• Overview: A federal holiday celebrating the American labor movement and the contributions of workers.

• Content ideas:

• Any company: Post a heartfelt "Happy Labor Day!" message acknowledging the hard work of your team and community.

• HR/Recruitment brands: Share a statistic about the American workforce or highlight an employee who embodies dedication. "Celebrating the backbone of every business: your incredible team!"

2. International Day of Charity (September 5)

• Overview: A day to mobilize people to help others through volunteer and philanthropic activities.

• Content ideas:

• Nonprofits: Highlight a recent achievement or a specific program. "It's International Day of Charity! Here's how your support impacts [specific program/cause]."

• Businesses: Spotlight a local charity you support or encourage your audience to give back. "We believe in giving back. Today, we're spotlighting [local charity] — here's why they matter."

3. Read a Book Day (September 6)

• Overview: A day encouraging people to pick up a book and read.

• Content ideas:

• Coaches/Consultants: Share your top book recommendation that helped you level up your business or mindset. "On Read a Book Day, we’re sharing our top book recommendation for leveling up your [skill/mindset]."

4. World Suicide Prevention Day (September 10)

• Overview: A global day to raise awareness about suicide prevention. (Note: handle with sensitivity and provide resources if applicable.)

• Content ideas:

• Wellness/Healthcare brands: Share general mental health resources or encourage checking in with loved ones.

• Any company: Post a gentle reminder about the importance of mental well-being and seeking help.

5. National Online Learning Day (September 15)

• Overview: A day dedicated to celebrating online education and its advancements.

• Content ideas:

• EdTech/Coaches: Highlight the accessibility and benefits of online courses or workshops. "Learning new skills online has never been easier. What are you diving into next? #NationalOnlineLearningDay"

• Any company: Share a carousel of industry-specific trivia/fun facts and tell your audience they’ve now completed their online learning for the day!

6. National Working Parents Day (September 16)

• Overview: A day to recognize and appreciate the efforts of working parents.

• Content ideas:

• Employers/HR brands: Celebrate the working parents on your team. "To all our working parents balancing it all: We see you, and you're incredible. #NationalWorkingParentsDay"

• Parenting-related brands: Share tips for work-life balance or offer a quick parenting hack. "Tips for working parents juggling careers and family life — you've got this!"

7. First day of Fall (September 22)

• Overview: The autumnal equinox, marking the official start of the fall season.

• Content ideas:

• Food/Drink brands: Announce fall-themed products or recipes.

8. National Coffee Day (September 29)

• Overview: A day to celebrate the beloved beverage.

• Content ideas:

• Any company: Share a photo of your team enjoying coffee together (bonus points if they’re out of the office and at a local shop).

• Coffee shops: Offer discounts or special promotions on coffee drinks. "Free drip coffee with any pastry today! Happy National Coffee Day!"

9. International Podcast Day (September 30)

• Overview: A day dedicated to celebrating podcasts and the power of audio.

• Content ideas:

• Content creators/marketers: Share insights on podcast marketing or why audio content is booming. "Podcasts are booming. Are you missing out on this audio goldmine? #InternationalPodcastDay"

• Any company: Share a podcast on which one of your team members has been a guest.

By taking advantage of these September holidays, you can create engaging and timely social media content that resonates with your audience and shows off your brand's personality.

To find additional social media holidays happening later this year, take a look at our 2025 social media holidays blog.