I just leave this two options to make it fun.
I voted red, but I hope for green.

Bitcoin has started to fall immediately we get to December, but bitcoin might be surprising at times as the month might end up in green as it happened in some months in the past or do you think this month will end up red?
Bitcoin has started declining a lot since the early of November. Bitcoin dropped from $110k to $80k. And it ended up the month with -17.54% (according to bitcoinmonthlyreturn). So, Bitcoin didn't just drop in the beginning of December. Unfortunately, Bitcoin keeps declining more in this month. Even if we have a little pump in the last week of November, Bitcoin is dropping again now. Considering the current market condition, I think we have a very small chance of green market in December.
According to the monthly candles, it indicates red
According to daily candles, it indicates red but maybe for a short period of time but it indicates otherwise.
According to chart pattern, we have all the indicators of red month. Moreover, we were almost always red in December if we take a look at the historical bullrun season (2013, 2021). But if we consider the data of bitcoinmonthlyreturn, we may have green month because we already have red market in August, October, and Novermber.
DYOR/DWYOR