Is Avonmouth really pronounced ‘Avon Mouth’?
I ask because every other place ending in Mouth is pronounced ‘Muth’
Eg. From round my way:
Exmouth - ‘Exmuth’
Dartmouth - ‘Dartmuth’
Sidmouth - ‘Sidmuth’
Teignmouth - ‘Tinmuth’
Etc.
But I’ve only ever heard ‘Avon Mouth’ and it just feels strange. It just sound really American when you say it!
Trust me, you’ve really started something now 
.
For my money, that’s English for you - loads of other similar instances of inconsistency.
Falmouth, is pronounced Falmouth!
I do love the English language for the fact that it’s an absolute mess of contradictions… this one just always seem particularly strange to me though!
Not gonna lie… I’ve always pronounced it ‘Falmuth’!
If your Cornish, I’ll take your word for it that your right, but I will not take your word for where to put jam in a cream tea 
Possibly similar to how a lot of people pronounce ‘Bovey Tracey’ as ‘Bovvie’ but many locals insist it is, and has always been, pronounced ‘Buvvie’
Falmuth
I pronounce it Avon Mouth!
I live in Bristol. It’s Avon Mouth. The English language makes no sense 
Reminds me of when I was younger and got mistaken for an American tourist in London because I asked where the Mall was. 
Brizzle 
While we’re talking South West, how about Teignmouth? 
And me (and I come from God’s Country so that’s that…
You should listen to how many people incorrectly add the definite article to Strand.
(But, yes, it’s “Avon Mouth”, like Grangemouth in Scotland)
I blame Roxy Music.
And Pet Shop Boys.
And Ukraine.
And Netherlands.
The Gambia is fine though 
Same area-ish.
Bath or Barth
tinmuth
or Baarth
Too much… 