ten-ya oom bom jee-a
Here's a breakdown:
* Tenha: "ten-ya" (The "h" is silent)
* um: "oom" (Similar to the English "um")
* bom: "bom" (Similar to the English "bomb" but with a shorter "o" sound)
* dia: "jee-a" (The "i" is pronounced like the "ee" in "see")
You can listen to the pronunciation here: [https://translate.google.com/#pt/en/Tenha%20um%20bom%20dia](https://translate.google.com/#pt/en/Tenha%20um%20bom%20dia)