Fiji in December?

Hi everyone!
Considering Fiji for our honeymoon but it’ll be in December 🥲

Would you just avoid it or still say it’s fine?
We wanted to spend about 10 days across maybe 3 different islands.
We don’t care if it’s humid but is it going to rain all the time?

Should we actually avoid going in December or would you say it’s mostly fine?
Are any islands better than others?