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Looking for a new set of British cozy mysteries to dig into as we approach cooler temperatures? You're in luck, because autumn is one of the busiest seasons for new mystery releases – so much that in addition to this post, we have another you may enjoy, especially if you also enjoy less-cozy titles, too: 27 Exciting British Crime Novels Coming in Autumn 2023.

This list, though, is specifically dedicated to September release cozies, including some of the lesser-known titles that will be coming out this month. We also include some Irish/Ireland-based books, because even though they're not British, Ireland is located within the British Isles and likely to appeal to many of the same readers. 

35 New British Cozy Mysteries Coming Out in September 2023

You can click any title below to visit its Amazon page. We link to the ebook format by default (since some have limited offerings outside that format). You can choose any of the available formats once you're over there. Many are available elsewhere as well, but if it's in Kindle Unlimited (their unlimited monthly subscription service), it requires exclusivity to Amazon.

New British Cozy Mysteries on September 1st

• Blue Poodle Blues (Tea? Coffee? Murder!: A Black Feather Mystery, Book 3) by Ellen Barksdale
• Bad Neighbours (Cherringham: Mystery Shorts, Book 45) by Matthew Costello & Neil Richards

New British Cozy Mysteries on September 4th

• The Death of Light (Scolaris Mysteries, Book 2) by Lou Collins

New British Cozy Mysteries on September 5th

• Reefs, Royals, Reckonings (Teddy Creque Mysteries, Book 4) by John Keyse-Walker
• Grave Expectations by Alice Bell

New British Cozy Mysteries on September 7th

• The Peculiar Vanishing Act of Mr Ralph Herriot (Mrs Imogene Lynch Series, Book 2) by Hannah Ivory

New British Cozy Mysteries on September 8th

• Darjeeling and A Deadly Disappearance (Waterwheel Cafe Mysteries, Book 2) by Victoria Tait

New British Cozy Mysteries on September 12th

• The Gardener in the Graveyard (Suzy Spencer Mysteries, Book 5) by Lis Howell
• IRISH: Muddy Murder (Shayla Murphy Mysteries, Book 3) by Stella Bixby
• Flora Flowerdew and the Mystery of the Purloined Papers (Flora Flowerdew Victorian Mysteries, Book 2) by Amanda McCabe
• OverLondon (Over London, Book 1) by George Penney & Tony Johnson

New British Cozy Mysteries on SEptember 13th

• Every Witch Way but Scales (Magical Misfits Mysteries, Book 11) by K.E. O’Connor

New British Cozy Mysteries on September 14th

• A Spell of Trouble (A Brush with Magic Mystery, Book 2) by Tyler Rhodes
• Foul Play at the Seaview Hotel (Helen Dexter Cosy Crime Mysteries, Book 3) by Glenda Young

New British Cozy Mysteries on September 15th

• Secrets at Sutherland Hall (Pippa Darling Mysteries, Book 1) by Jenna Bennett
• Letters to Clementine by A.U. Laugesen
• Murder in India (Tommy & Evelyn Christie Mysteries, Book 7) by Catherine Coles

New British Cozy Mysteries on September 19th

• The Last Devil to Die (Thursday Murder Club Mysteries, Book 4) by Richard Osman

New British Cozy Mysteries on September 20th

• Death in the River (Breakfast Club Detectives, Book 2) by Hilary Pugh

New British Cozy Mysteries on September 21st

• Murder in the Blitz (Edie York Mysteries, Book 1) by F.L. Everett

New British Cozy Mysteries on September 22nd

• Murder at the Marquee (Eliza Thomson Investigates, Book 8) by VL McBeath

New British Cozy Mysteries on September 24th

• Murder Most Sweet (Ruby O’Donovan Mysteries, Book 2) by Lily Cherry
• Cakes, Crumpets, and Crimes (Dog Detective – A Bulldog on the Case, Book 9) by Rosie Sams

New British Cozy Mysteries on September 26th

• A Sluggish Murder (Wildwood Witch Mysteries, Book 7) by Elle Adams
• Dead to Rights (Mackenzie Owens Mysteries, Book 1) by Jasmine Webb 
• Death and the Sisters (Mary Shelley Mysteries, Book 1) by Heather Redmond
• Murder by Invitation Only (Phyllida Bright Mysteries, Book 3) by Colleen Cambridge
• Murder Most Royal (Her Majesty the Queen Investigates, Book 3) by SJ Bennett

New British Cozy Mysteries on September 27th

• I Spy With My Little Die (Right Royal Cozy Investigation Mysteries, Book 7) by Helen Golden
• Murder by Invitation (Lady Eleanor Swift Mysteries, Book 15) by Verity Bright
• A Homicide at Halloween (Mrs. Lillywhite Investigates Book 11) by Emily Queen

New British Cozy Mysteries on September 28th

• The Brewery Murders (Yorkshire Murder Mystery Book 9) by J.R. Ellis

New British Cozy Mysteries on September 30th

• Death in Westminster (Augusta Peel 1920s Mysteries, Book 5) by Emily Organ
• Dotty and the Disappearance in Dorset (Dotty Drinkwater Mysteries, Book 12) by Diane Ezzard
• The Case of the Purloined Poodle (Kitty Worthington Cozy Capers, Book 1) by Magda Alexander

NEED MORE BRITISH Mystery Recommendations?

Need a few more ideas for your reading list? Check out:

• 31 Puzzling British Cozies New in August 2023
• 19 Delightful Cozy Mysteries Set in Scotland
• 13 Must-Read Classic British Mystery Novels
• 13 Promising British Debut Authors for 2023

 

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