I have done quite a few late November to early to mid December trips over the last 15 years including just a few months ago in 2023. I agree that you have to pack, essentially for 4 seasons of weather at once, sometimes all in the course of one day! The best news though is that it definitely rains the least during this period of the season, in fact my 2023 trip got nearly no rain at all, I was shocked! But it was also the first December trip I ever had where we had some sustained days in the 80s in the daytime, to the degree I got some uncomfortable sunburn. In the past I had never worn any on my December trips because I had not gotten burned, but this trip was surprisingly hotter at times, which shocked me. But I still had many chilly mornings and nights where you felt you needed a light jacket and might be more comfortable in pants. I mean, I have had trips with lows of 32 degrees and highs in the mid 80s and that is just over the last 2 years! So, yeah be prepared for almost all temps but you will be given a major break from heavy rain.