Post-Effective Amendment to Post-Effective Amendment by Investment Company (Form 485BXT)

As filed with the Securities and Exchange Commission on October 9, 2025

Securities Act File No. 333-267188
Investment Company Act File No. 811-23823

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM N-1A

TEMA ETF TRUST
(Exact Name of Registrant as Specified in its Charter)

Brookfield Place
200 Vesey Street, Suite 24106
New York, New York 10281
(Address of Principal Executive Offices)

Registrant's Telephone Number, including Area Code: 302.499.4928 ext. 801

The Corporation Trust Company
Corporation Trust Center
1209 Orange Street
Wilmington, Delaware 19801
(Name and address of agent for service)

Copy to:

Matthew Keeling
Tema ETFs LLC
Brookfield Place
200 Vesey Street, Suite 24106
New York, New York 10281

Bibb L. Strench, Esq.
Thompson Hine LLP
1919 M Street, N.W., Suite 700
Washington, D.C. 20036

Approximate Date of Proposed Public Offering: As soon as practicable after the effective date of the Registration Statement.

It is proposed that this filing will become effective:

☐ Immediately upon filing pursuant to paragraph (b)

☒ On November 7, 2025 pursuant to paragraph (b)

☐ 60 days after filing pursuant to paragraph (a)(1)

☐ On (date) pursuant to paragraph (a)(1)

☐ 75 days after filing pursuant to paragraph (a)(2)

☐ On (date) pursuant to paragraph (a)(2) of Rule 485.

If appropriate, check the following box:

☒ This post-effective amendment designates a new effective date for a previously filed post-effective amendment

Parts A, B and C filed in Post-Effective Amendment No. 16 to the Registration Statement of only the Tema ETF Trust on behalf of Tema Endowment ETF as filed with the Securities and Exchange Commission pursuant to Rule 485(a) under the Securities Act of 1933 on September 13, 2024 (Accession Number 0001999371-24-011915), are herein incorporated by reference. This filing does not relate to the Tema Electrification filing. This filing is being made pursuant to Rule 485(b)(1)(iii) under the Securities Act of 1933 to extend the effectiveness of the Registration Statement until November 7, 2025.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the Registrant certifies that it meets all of the requirement for effectiveness of this Registration Statement under rule 485(b) under the Securities Act of 1933 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, duly authorized, in the in the City of London, United Kingdom, on the 9^th day of October 2025.

Pursuant to the requirements of the Securities Act of 1933, this registration statement has been signed below by the following person in the capacities and on the date indicated.

* Attorney-In-Fact - Pursuant to Power of Attorney Previously Filed dated April 21, 2023 for Messrs. Jacobs, Keary and Sherry, and filed with Registrant's registration statement on Form N-1A dated May 24, 2022 and herein incorporated by reference.