While Cancun has become the king of the Mexican beach resort towns in the few decades since it was formed, it's only one of many, and all of them on both coasts have very nice weather in December. In fact, Cancun is probably the most expensive of them, so especially if you are coming from the west coast you are better off in Puerto Vallarta, Acapulco, or Los Cabos instead.
Lastly, while you’re stocking up on your morning coffee or mid-morning snack, you can many times see hard boiled eggs, snack-size cheeses, and small packs of nuts available in the display cases. While this is common in gas stations and convenience stores, more and more coffee shops and cafés are offering elevated versions of these as well. These are a quick and easy way to get some keto food while you’re sightseeing or running to a meeting.
The other place that comes to mind is Croatia, which also has reasonable weather in November. I’d recommend focusing on Split, which has many similarities with the more-famous Dubrovnik, but it’s easier to reach, much cheaper, and more authentic because Dubrovnik has become kind of cheesy as a cruise port. You could even take a bus to Mostar or Sarajevo in Bosnia for a couple days. The coast in that area is beautiful and there won’t be many other tourists that time of year. I hope these ideas help. Let me know if you have any other questions. -Roger
And as you mention, Bali could actually work for you. I’ve spent two Decembers in Bali, and December is quite a bit rainier on average. Still I had a great time and it was sunny most of the days. The rain in the tropics (and Bali is almost ON the equator) tends to come down in 30-minute bursts rather than drizzling all day, so it’s usually pretty easy to avoid. The best part of Bali is there are loads of things to see and do, and the nightlife is excellent. The Kuta Beach area is fun for at least a few days, but I wouldn’t spend too much time there. You should also spend a few days in Ubud, which is very touristy but also interesting. And you could spend some time in Lovina, which is along the northern coast and it has all of the charm of Bali from 20 years ago before most of it got overbuilt. With all the temples and other local attractions, there is always something interesting to do, which is not true of many other places with great beaches and nightlife. Let me know if you have any other questions. -Roger
As you suspected, this is a tricky one. Most of the places that would work for you are having a very rainy month in November, so it’s not a good time. Thailand would actually be a good choice if you can deal with the travel time. The rainy season there ends in October and yet the crowds don’t start appearing until December, so you get low hotel prices with nearly perfect weather. As mentioned, all of the good options in Central or South America have a wet season in November. Argentina could be a good option, as November is late spring there, and it has everything you are looking for. The flights to get there are also fairly long though.
As with other Caribbean resort destinations, the weather in Montego Bay is perfect in December, and the first half of the month is still cheap for flights and resort prices. The weekend before Christmas is when peak season here starts, and if you book early enough you can still get a good deal then, but don't expect many last-minute bargains during that period.
Pay homage to the Native American heritage of the U S of A by taking in the sights and sounds of Arizona’s capital city for pure rest and relaxation before the holiday season. Phoenix anchors a sprawling, multicity metropolitan area known as the Valley of the Sun, which is highly regarded for its luxury resorts, vibrant nightclubs, designer golf courses, and long lasting sunshine and warmth—even through the winter months. Attractions include the Heard Museum and the Pueblo Grande Museum & Archaeological Park. Be sure to check them out!
From November through February there are literally no European cities that could qualify as having “great weather.” We list Tenerife below because it's technically in Europe, although not really much of a cultural destination. Antalya, Turkey (which technically isn't even in Europe), has the closest thing to a sunny climate with acceptable temperatures. So during the winter Europe is all about cultural tourism, and lower hotel prices make it especially appealing for those who like to stretch their travel budgets and avoid crowds at the same time.
In Rome, the Coliseum and Ancient Rome are outdoors, but the city also doesn’t get as cold as the others so most likely you’ll be fine if you bundle up a bit. In Venice, they often have those floods during December, but they come and go every 6 hours so even if you get unlucky you’ll still be able to get around half the day, and it’s a small city anyway.
November is a tricky month in tropical Asia, as you’ve discovered. In Thailand, Cambodia, and Vietnam, it can be rainy, and that includes some days where it rains the whole day rather than the quick cloudbursts you get in June and July. The best tourist beach in Vietnam is in a town called Nha Trang in the south, and there is Da Nang near Hoi An in the center of the country, but you’ll get November rains in both of them.
Early December is the end of the rainy season in those areas. The storms tend to be short by that time, but still you will probably get a few quick downpours a week. I’m not an expert on getting around in the Philippines, though I do know that it’s rarely fast or easy. If you want a place to relax then Boracay Island might be the best. Sorry I couldn’t be of more help. -Roger
Located off the coast of East Africa, the Seychelles—an archipelago consisting of 115 islands—is about as close to paradise as you can get. Crystal clear water, lush jungles, and powder-fine sand make it the ultimate early winter escape, particularly for romantic getaways. Book one of the 30 breathtaking pool villas at Six Senses Zil Pasyon, which is among the region's top luxury resorts. The hotel is situated on a private island that offers prime territory for snorkeling, sailing, kayaking, and hiking—plus, the spa has scenic pavilion-style treatment rooms that are worth the trip alone. Health conscious guests will be particularly impressed by the property's new "Eat with Six Senses" program, which is intended to make travelers leave vacation without the guilt that comes with overindulging. There are four tailor-made treatment plans that focus on sleep, detoxing, fitness, and more, depending on the issues you prefer to address.