Cultural Calendar Dates For September 2025

September marks the beginning of new seasons and new opportunities for awareness, learning, and celebration. From causes that promote health and well-being to days that inspire community and resilience, this month offers a variety of ways to engage and make a difference.

Cultural Calendar Dates For September 2025

📅 Back to school | September 2025

👉 As a new academic year emerges in the Northern Hemisphere, so do new opportunities and sometimes challenges. Explore our expert parenting speakers.

» READ MORE: Explore key days celebrating parents: a guide for mums, dads, and caregivers.

📅 International Day of Peace | 21 September 2025

👉 The International Day of Peace, a United Nations observance celebrated since 1982, is a significant event that marks the opening of the General Assembly's annual debate on disarmament and international security. It also recognises and strengthens the ideals of peace within individuals, communities, and societies worldwide.

📅 National Suicide Prevention & Awareness Week | Starts 8 September

👉 Promote mental health resources and support suicide prevention efforts within the workplace. We have a wealth of keynote speakers who can support mental health and stress management. This week also includes World Suicide Prevention Day on September 10. Our speaker recommendations include Rob Hosking, a former front-line police officer, and Tom Bosworth, a speaker and two-time British Olympic racewalker.

📅 Bisexual Awareness Week | Starts 16 September 2025

👉 Raise awareness and support for bisexual employees through education and inclusivity initiatives. Why not book Dame Inga Beale for a fireside chat on inclusivity?

📅 Hispanic & Latinx Heritage Month | September 15 - October 15 2025

👉 Celebrate the contributions and cultures of Hispanic and Latinx employees through events and educational resources. Read more ideas to observe and promote the month in your workplace.

📅 Climate Week | Starts 22 September 2025

👉 Engage in sustainability initiatives and encourage environmentally friendly practices. Explore top sustainability speakers.

📅 National Inclusion Week (UK) | Starts 23 September 2025

👉 The theme for National Inclusion Week 2025 is yet to be confirmed. Still, it will undoubtedly be a call to action for everyone in your organisation, from leaders to inclusion professionals to teams and individuals. Check out our top inclusivity speakers for your next event.

Of course, this is just a selection of dates! If we've missed any key days or events for your HR, Culture, or People team, be sure to let us know on LinkedIn.

Explore The Rest of 2025

Key cultural calendar dates, weeks and observances for the rest of 2025:

💡 Would you like to mark any of these events with an expert speaker? Let us know, and we’ll find the perfect PepTalk expert for your organisation. Email us at hello@getapeptalk.com or send us a message via the chat. You can also call us on +44 20 3835 2929 (UK) or +1 737 888 5112 (US). Remember, it’s always a good time to get a PepTalk!

Culture Calendar

Success favours the prepared. That’s why we’ve compiled a free calendar of awareness days and weeks to support your business.

From health and wellbeing to culture and DEI, adding the calendar will keep you on the pulse of what’s happening and ahead of the game. Plus, it works across all platforms.