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Must-Read New Book Releases Coming in September 2025
September 2025 new book releases are ushering in the start of fall with some of the most anticipated titles of the year. As the weather begins to cool and cozy reading season kicks off, publishers are rolling out a fresh mix of gripping thrillers, emotional contemporary fiction, and atmospheric reads perfect for curling up with.
This list highlights the must-read September 2025 new book releases you’ll want on your radar. Whether you’re back to school, back to routine, or just ready for a new season of stories, there’s something here to kick off your autumn reading list.
Want to know which books I am predicting for Book of the Month and Aardvark Book Club? Check out my predictions lists!
Related: September 2025 Book of the Month Predictions and September 2025 Aardvark Book Club Predictions

Mystery/Thriller September 2025 New Book Releases

The Belles by Lacey N. Dunham
Release Date: September 9, 2025
In this richly atmospheric, dark academia debut novel, a young woman with a secretive past will risk everything—including her life—to fit in.

The Wasp Trap by Mark Edwards
Release Date: September 16, 2025
A dinner party in a beautiful Notting Hill townhouse turns into a sinister game as six old friends are forced to spill their darkest secrets…or else.

A Killer Wedding by Joan O’Leary
Release Date: September 23, 2025
Debut Author
Set against the dazzling backdrop of ultimate luxury and an endless reveal of surprises, A Killer Wedding is a fast-paced, humorous mystery the pulls back the curtain ontoxic family dynamics hidden beneath the surface of billionaire-level wealth.

The Librarians by Sherry Thomas
Release Date: September 30, 2025
Murder disrupts the routine for four quirky librarians who hide among books to keep their secrets in this mystery from USA Today bestselling author Sherry Thomas.





Romance September 2025 New Book Releases

Every Step She Takes by Alison Cochrun
Release Date: September 2, 2025
A swoon-worthy sapphic romance following two women who are thrown together on a European adventure.

People Watching by Hannah Bonam-Young
Release Date: September 9, 2025
In this sexy and emotional romance from the acclaimed author of Out of the Woods and Out on a Limb, a small-town woman’s journey to spread her wings intertwines with the arrival of an adventurous newcomer who brings out the best in her.

The Heartbreak Hotel by Ellen O’Clover
Release Date: September 23, 2025
Debut Author
A bed-and-breakfast for the brokenhearted might hold the key to another chance at love in this achingly hopeful debut romance.

Tourist Season by Brynne Weaver
Release Date: September 23, 2025
First book in The Seasons of Carnage Trilogy
Tourist Season is a darkly funny, slow burn, enemies-to-lovers romance where destruction and desire are balanced on the edge of a blade—and where love is the most dangerous battleground of all.

Kitty St. Clair’s Last Dance by Kate Robb
Release Date: September 30, 2025
When a young woman is bequeathed a shuttered dance hall, she begins to dream of its heyday—and learns to see her present-day entanglements in a new light.

Say It Out Loud by Ashley Schumacher
Release Date: September 30, 2025
In this heartfelt, magical romcom, a down-and-out podcaster gets a second chance—at her career and love—when she’s cast in the audio drama adaptation of her favorite paranormal romance series . . . alongside the one who got away.








Contemporary Fiction September 2025 New Book Releases

Hot Desk by Laura Dickerman
Release Date: September 2, 2025
Debut Author
Younger meets Writers & Lovers in this rollicking, sparkling, and funny novel that spans decades and generations of a family in the publishing industry.

The Academy by Elin Hilderbrand and Shelby Cunningham
Release Date: September 16, 2025
From #1 bestselling author of The Perfect Couple Elin Hilderbrand, and her daughter, Shelby Cunningham: the irresistible, deliciously scandalous story of one drama-filled year at a New England boarding school.

The Many Mothers of Dolores Moore by Anika Fajardo
Release Date: September 16, 2025
For fans of Rebecca Serle and Elizabeth Acevedo, a magically insightful novel about a woman’s journey to discover her roots and what it means to carry our ancestors with us.
Literary Fiction September 2025 New Book Releases

Discontent by Beatriz Serrano
Release Date: September 2, 2025
From a dazzling new international voice, an audacious, darkly funny novel about a young woman whose carefully crafted office persona threatens to crack when she’s forced to attend her company’s annual retreat.

Happiness and Love by Zoe Dubno
Release Date: September 2, 2025
Debut Author
Following a young woman over the course of one outrageous and insufferable downtown dinner party at the home of her estranged best friends—an artist and curator couple, whom she now realizes stand for everything she detests—Happiness and Love is a piercing debut novel about brazen materialism, self-obsession, and the empty careerism of so-called cultural elites.

The Elements by John Boyne
Release Date: September 9, 2025
An epic saga that weaves together four interconnected narratives, each representing a different perspective on crime: the enabler, the accomplice, the perpetrator, and the victim.

The Wilderness by Angela Flournoy
Release Date: September 16, 2025
An era-defining novel about five Black women over the course of their twenty-year friendship, as they move through the dizzying and sometimes precarious period between young adulthood and midlife.

We Love You, Bunny by Mona Awad
Release Date: September 23, 2025
The highly anticipated follow up to the viral sensation Bunny, a brilliantly written, laugh-out-loud funny, dark, and delirious novel set in the Bunny-verse—a world that Margaret Atwood declared “soooo genius.”

Heart the Lover by Lily King
Release Date: September 30, 2025
From the New York Times bestselling author of Writers & Lovers comes a magnificent and intimate new novel of desire, friendship, and the lasting impact of first love.



Historical Fiction September 2025 New Book Releases

The Girl in the Green Dress by Mariah Fredericks
Release Date: September 2, 2025
From the author of The Lindbergh Nanny comes an evocative mystery about the 1920 murder of the gambler Joseph Elwell, featuring New Yorker writer Morris Markey and Zelda Fitzgerald.

The Lost Story of Eva Fuentes by Chanel Cleeton
Release Date: September 30, 2025
A mysterious book with a legacy spanning from the beginning of the twentieth century to the present day unites three women—and their secrets—in this unforgettable novel from New York Times bestselling author Chanel Cleeton.
Horror/Gothic Fiction September 2025 New Book Releases

Play Nice by Rachel Harrison
Release Date: September 9, 2025
A woman must confront the demons of her past when she attempts to fix up her childhood home in this devilishly clever take on the haunted house.

The Whistler by Nick Medina
Release Date: September 16, 2025
A young man is haunted by a mythological specter bent on stealing everything he loves in this unsettling horror from the author of Indian Burial Ground and Sisters of the Lost Nation.

One of Us by Dan Chaon
Release Date: September 23, 2025
A playfully macabre and utterly thrilling tale about orphaned twins on the run from their murderous uncle who find refuge in a bizarre traveling carnival, from master of literary horror Dan Chaon.

The October Film Haunt by Michael Wehunt
Release Date: September 30, 2025
Horror Movie meets the scope and emotion of Stephen King in this heart-pounding, magnetic tour de force novel, destined to become an instant classic, about a woman pulled into a cult horror film that is determined to have a sequel, by critically acclaimed author Michael Wehunt.

Widow’s Point: The Complete Haunting by Richard Chizmar and W. H. Chizmar
Release Date: September 30, 2025
Told across two harrowing incidents from 2017 and 2025, those who enter the Widow’s Point Lighthouse searching for supernatural proof and the next big thing find themselves cut off from the outside world. And although no one has recently stepped foot inside the structure, they are not alone.














Fantasy September 2025 New Book Releases

A Land So Wide by Erin A. Craig
Release Date: September 2, 2025
From the No. 1 New York Times bestselling author of The Thirteenth Child, comes an irresistible blend of dark fairytale and romantic fantasy set in the beautiful but brutal Canadian wilderness.

Wild Reverence by Rebecca Ross
Release Date: September 2, 2025
Spinoff series in the Divine Rivals world
Set in the world of the gods first introduced in Divine Rivals, #1 New York Times bestselling author Rebecca Ross delivers a sweeping, beautiful adult novel filled with tension, romance, and dark secrets.

The Maiden and Her Monster by Maddie Martinez
Release Date: September 9, 2025
Debut Author
The Maiden and Her Monster is a gorgeous, atmospheric debut fantasy rooted in history, folklore, and sapphic romance―perfect for fans of Katherine Arden, Ava Reid, Hannah Whitten, and Naomi Novik.

Among the Burning Flowers by Samantha Shannon
Release Date: September 16, 2025
Prequel Novel, Part of The Roots of Chaos series
With the awakening of fire-breathing dragons, Among the Burning Flowers sees the first sparks of danger that threaten to consume the world in The Priory of the Orange Tree.

Alchemised by SenLinYu
Release Date: September 23, 2025
Debut Author
In this riveting dark fantasy debut, a woman with missing memories fights to survive a war-torn world of necromancy and alchemy—and the man tasked with unearthing the deepest secrets of her past.

Thief of Night by Holly Black
Release Date: September 23, 2025
Book 2 in The Charlatan Duology
There’d always been something wrong with Charlie Hall. Crooked from the day she was born. Never met a bad decision she wasn’t willing to double down on. She may be good enough to steal a shadow from a tower, but will she be good enough to steal back a heart?




Sci-Fi/Dystopian September 2025 New Book Releases

What We Can Know by Ian McEwan
Release Date: September 23, 2025
From the Booker prize-winning, bestselling author of Atonement and Saturday, a genre-bending novel full of secrets and surprises; an immersive exploration. across time and history, of what can ever truly be known.

Saltcrop by Yume Kitasei
Release Date: September 30, 2025
From the acclaimed author of The Stardust Grail comes the epic tale of two sisters who sail across oceans to find their missing third sister―and Earth’s environmental salvation.



More On The Blog
- 2025 Mid Year Reading Check In
- Best New Fantasy Books of 2025
- Book Review: Overruled by Lana Ferguson
Which new book releases are you looking forward to in September 2025?
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