As for alternatives, you might have a look at my recent article with my recommendations for the best places to go in Asia in December. It’s got many more choices than the article above, with weather information for all of them. Closer to India, I think Sri Lanka is very nice in December, although it’s somewhat similar to India in many ways and you may want something more exotic. In that case I think Thailand and Malaysia are the best choices for family holidays.
Venice can get pretty cold and they also have those famous Acqua Alta floods in winter, so read up on that before you go. But Rome and Munich should be easy to visit in December. One suggestion I will make is to consider visiting Rome for 3 or 4 nights and then base yourself down on Sorrento for the remaining 2 or 3 nights. Rome is one of those cities that is crowded and chaotic even in winter, to the point that just crossing the street can be frustrating, so many people get tired of that after they’ve seen the main sights. And Sorrento, on the other hand, is a lovely small city that is close to Amalfi, Pompeii, Naples, and the Isle of Capri, so it’s an ideal base to visit all of those. Sorrento is also cheaper than Rome, and a surprising number of locals speak English there, so it’s easy and pleasant. That time of year I’m not even sure if the tourist buses are running to Amalfi, although the local ones will be.
Australia is so large and varied that one cannot simply say ‘go to Australia in November’ and expect everything to be fine beachy. That said, November is probably as close as it gets to being perfect weather country-wide. The tropical rainy season in the North hasn’t properly settled into humid downpours yet, while the cooler southern states of Victoria and Tasmania are shaking off the winter frost and basking in warmer days. Vino and meals are taken al fresco, outdoor music and food festivals pop up everywhere, and beaches across the country begin to buzz.
If I were you I’d fly into Bali and spend a couple days in the Kuta area to get your bearings and then head to Ubud, which is in the foothills and easily reached by shuttle bus. It’s also fairly crowded, but it’s still quite nice and there are scores of little spas and yoga places and that sort of thing. Then after a few days there, head up to the northern coastal town of Lovina, which is sort of like how Kuta was 25 years ago. It’s still only partly developed and there are still many open spaces, which is no longer true in the Kuta area. It’s cheaper than Kuta, and somewhat like Boracay in how mellow it is. You could also take a ferry from Bali to the island of Lombok, which is the next large one over. Things there are also more like Boracay and less chaotic than the Kuta area. Again, I really love Bali and still recommend it, but unless you are an Australian surfer, it’s best to stay somewhere other than the general Kuta area.
In Cambodia the best place by far is the Angkor Wat temples just outside of Siem Reap. Siem Reap itself is a nice town with plenty to see and do, but 3 or maybe 4 days should be enough. Otherwise you have Phnom Penh, which isn’t too special, or Sihanoukville, which is a pleasant beach town that doesn’t really match up to most of what you are used to in the Philippines.
Interestingly, December though February do get a bit cool in Cairo, so it's not a great winter break, but in November it's still pleasantly warm and bone-dry so you can enjoy the outdoors for long periods of time. If you don't mind staying in a locally-owned hotel you can save a lot of money and see some old-world charm at the same time. Reservations in advance aren't necessary, but it's best to book your first couple of days just to avoid all the confusion once you arrive.
Preheat oven to 425 degrees. Line a rimmed baking pan with a sheet of parchment paper. In a medium bowl, toss the green beans, garlic and olive oil together until completely coated. Then, spread the coated green beans on the lined pan in a single layer without crowding. Season with salt and pepper, then roast in the pre-heated oven for 15 minutes. Remove from oven once during this time to turn the beans so they cook evenly. When finished roasting, remove from oven and place beans on serving tray. Before serving, drizzle with extra virgin olive oil and sprinkle with grated Parmesan cheese. This makes a great recipe for Thanksgiving dinner sides.
My top recommendation would be San Juan, Puerto Rico. It offers a wonderful mix of history and culture and nightlife and great food, alongside excellent beaches and abundant activities. Hotels and rental apartments are mostly in the mid-range for the Caribbean, but food and drinks and most other things are great value. You could get a place in the Condado area, which is close to the lovely Old San Juan neighborhood and plenty of nightlife all around. And then perhaps you could rent a car and stay for a few days at one of the smaller beach towns elsewhere on the island. You wouldn’t even need a passport, although it does feel fairly exotic while you are there. But because it’s part of the US, it’s also well organized and safe. Most people you’ll meet will speak at least some English, and many are fluent, so it’s easy even if you don’t speak Spanish.
Every year it goes the same way. My mom calls me up a few weeks before Thanksgiving and asks me, “You are bringing green bean Casserole this year, right?” before she launches into a chorus of “You have to! No one else makes it just like you do!” Green beans have become “my thing” around the Thanksgiving holiday, and it’s the dish that I am expected to bring to dinner each year.
Traveling during the last ten days of December means crowds and exorbitant prices throughout much of the world, but the first two-thirds of the month—before holiday airfares and hotel rates go into effect—can be a serene, value-laden, and just plain lovely time to vacation. Europe is all decked out for the holidays—with locals generally friendly and in high spirits; in the Southern Hemisphere, spring is in bloom; and in the Caribbean, Hawaii, and Mexico, hurricane season is over, the weather is gorgeous, and there are free upgrades galore.