"Inn of the sun" is a literal English equivalent of the French phrase auberge du soleil. The pronunciation of the words -- whose most famous association perhaps is currently with California resort names -- will be "o-berzh dyoo so-ley" in French.
in the sunshine: au soleil ,aux rayons du soleil
"Sunny" is an English equivalent of the French phrase du soleil. The masculine singular prepositional phrase translates literally as "of the sun" or "some sun" in English. The pronunciation will be "dyoo so-ley" in French.
when there is sun, when it's sunny
Soleil
"It's sunny!" is an English equivalent of the French phrase Il y a du soleil! The declaration translates literally as "There's some sun!" in English. The pronunciation will be "ee-lya dyoo so-ley" in French.
"It's sunny!" is an English equivalent of the French phrase Il fait du soleil! The exclamation translates literally as "It does (makes) some sun!" in English. The pronunciation will be "eel feh dyoo so-ley" in French.
sing.: un rayon de soleil pl.: des rayons de soleil, les rayons du soleil
"You are my sunshine" is a literal English equivalent of the French phrase Vous êtes mon soleil. The pronunciation of the pronoun and verb in the second person singular/plural and of the possessive and noun in the masculine singular will be "voo-zet mo so-ley" in French.
"It's sunny in Calais!" is an English equivalent of the French phrase Il y a du soleil à Calais! The exclamation translates literally as "There is some sun at Calais!" in English. The pronunciation will be "ee-lya dyoo so-ley a ka-leh" in French.
Auberge du Soleil is a relaxing, quite beautiful and comfortable resort/restaurant in Napa Valley. Napa Valley is located north of the San Francisco Bay Area in the United States.
Il fait du soleil means "it is sunny" in French.
You're my [ray of] sunshine is an English equivalent of 'Tu es mon rayon de soleil.