List of Important Days in September 2025: National and International Dates

Important Days and Dates in September 2025: September is a month marked by meaningful celebrations, awareness campaigns, and cultural events worldwide. From honouring educators to promoting global causes like literacy, health, and the environment, this month offers a chance to learn, reflect, and participate in initiatives that impact society. Whether for personal knowledge or competitive exam preparation, knowing these important dates can help you stay informed and engaged.

List of Important Days in September 2025

Check the detailed table below to know all the important days in September 2025 along with their significance.

List of Important Days and Dates in September 2025: National and International Dates

National Days in September 2025

1 September – National Nutrition Week

National Nutrition Week in India is observed every year from 1st to 7th September. This week, educate people about the importance of proper nutrition for a healthy lifestyle. The theme for National Nutrition Week 2025 is “Food Connects Us”, emphasising the bond between nutrition, culture, community, and overall well-being.

5 September – Teachers’ Day (India)

Teachers’ Day in India is celebrated every year on 5th September to honour the birth anniversary of Dr. Sarvepalli Radhakrishnan, the country’s second President, a distinguished philosopher, and a devoted teacher. The day acknowledges the invaluable role teachers play in nurturing students, spreading knowledge, and shaping responsible citizens of tomorrow.

5 September – Onam

Onam, the biggest festival of Kerala, also falls on 5th September in 2025. This vibrant harvest festival commemorates the annual homecoming of King Mahabali, with feasts, boat races, and floral decorations. The festival extends over ten days and is marked by traditions that highlight Kerala’s cultural richness and unity

6 September – Ananta Chaturdashi

Concludes Ganesh Chaturthi celebrations. Devotees tie sacred threads called ‘Ananta Dhara’ as a mark of devotion.

11 September – National Forest Martyrs Day

Honours the Bishnoi tribe led by Amrita Devi, who sacrificed their lives in 1730 to protect trees in Rajasthan.

14 September – Hindi Diwas

Marks the adoption of Hindi in the Devanagari script as India’s official language in 1949.

15 September – Engineer’s Day (India)

Pays tribute to Bharat Ratna Mokshagundam Visvesvaraya and the engineers’ contributions.

17 September – PM Narendra Modi’s Birthday

Celebrates the 73rd birthday of India’s 15th Prime Minister.

25 September – Antyodaya Diwas

Commemorates the 98th birth anniversary of Pandit Deen Dayal Upadhyaya.

28 September – Durga Puja

Marks an auspicious day of the Navratri festival, celebrating Goddess Durga.

International Days in September 2025

2 September – World Coconut Day

Highlights coconut cultivation in poverty reduction and celebrates the Asian Pacific Coconut Community (APCC).

3 September – Skyscraper Day

Celebrates tall buildings as symbols of human innovation and industrial mastery.

4 September – Eid Milad-Un-Nabi

Marks the birth of Prophet Muhammad and encourages prayer and charitable acts.

5 September – International Day of Charity

Promotes global poverty eradication in line with the UN Sustainable Development Goals.

7 September – Brazilian Independence Day

Commemorates Brazil’s independence from Portugal in 1822.

8 September – International Literacy Day

Emphasises literacy as a fundamental right and key to human dignity.

8 September – World Physical Therapy Day

Recognises the contributions of physical therapists worldwide.

8 September – Grandparents’ Day

Celebrates the bond between grandparents and grandchildren.

10 September – World Suicide Prevention Day

Raises awareness about suicide prevention, co-sponsored by WHO.

11 September – 9/11 Remembrance Day

Honours victims of the 2001 attacks in the U.S. and encourages service in their memory.

11 September – World First Aid Day

Promotes knowledge about first aid and its life-saving importance.

11 September – Digvijay Diwas

Commemorates Swami Vivekananda’s speech at the 1893 Parliament of World Religions.

13 September – International Chocolate Day

Celebrates Milton S. Hershey and the joy of chocolate worldwide.

15 September – International Day of Democracy

Highlights democratic values and human rights worldwide.

16 September – Malaysia Day

Marks the formation of the Malaysian Federation in 1963.

16 September – World Ozone Day

Raises awareness about ozone layer depletion following the Montreal Protocol in 1987.

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17 September – Vishwakarma Puja

Observed by artisans and industrial workers for safety, prosperity, and the smooth functioning of machines.

17 September – World Patient Safety Day

Promotes global initiatives to improve patient safety.

18 September – World Bamboo Day

Highlights the ecological and economic importance of bamboo.

19 September – International Talk Like a Pirate Day

A fun observance encouraging pirate-themed speech and costumes.

20 September – International Red Panda Day

Raises awareness about conservation efforts for red pandas.

21 September – International Day of Peace & World Alzheimer’s Day

Promotes global peace and awareness of Alzheimer’s challenges.

22 September – Rose Day

Supports cancer patients, inspired by 12-year-old Melinda Rose of Canada.

22 September – World Rhino Day

Focuses on conservation and safe habitats for rhinos.

23 September – International Day of Sign Languages

Supports linguistic identity and cultural diversity for the deaf community.

25 September – World Pharmacists Day

Celebrates the role of pharmacists worldwide.

26 September – European Day of Languages, World Contraception Day & World Environmental Health Day

Promotes language learning, reproductive health awareness, and environmental health.

27 September – World Tourism Day & Google Birthday

Highlights the impact of tourism globally and marks Google’s 25th anniversary.

28 September – World Rabies Day, World Rivers Day & International Day for Universal Access to Information

Promotes rabies prevention, river conservation, and public access to information.

29 September – World Heart Day

Raises awareness about heart disease and stroke.

30 September – International Translation Day

Honours language professionals and their role in fostering global understanding.

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