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
If you are going to that region I suggest you visit a site called travelfish.org, which is by far the best website on SE Asia and it’s run by a friend of mine who lives in Bali. They have busy forums where you can ask questions and quickly get them answered by experts on every imaginable topic there. I’m happy to help more as you are planning, so let me know if you have any other questions. -Roger
The reason for the recommendation is that Bali is not only a yoga and “spiritual” hot spot, but it’s also the most popular island for solo women travelers in the region. The book and movie “Eat, Pray, Love” was inspired by this trend, and they have in turn inspired thousands of solo female visitors to go there and stay for long periods, particularly in and around the Ubud area. It’s gorgeous and quite cheap once you get there, and the locals are generally gentle and kind to all. Most other tropical hot spots in Asia have far more solo male visitors than solo females. Just avoid lingering in the Kuta Beach area, because it’s packed with bars and loud backpacker party people. Most of the rest of the island is quite mellow.
If you are looking for a place to go abroad for a few months starting in early December, you are right on the money with Thailand as the best starting location. The weather is really nice that time of year, and it’s quite easy to keep things extremely cheap if you need to. Many of us in the travel writing community have spent months or years traveling around southeast Asia, and I’ve probably spent close to two years there myself. Bangkok is the obvious place to start and it’s an amazing city. After that you can either go north to Chiang Mai and Chiang Rai and then over to Laos, or you can head south to one or more of the islands. Cambodia has a lot to offer, and especially in Siem Reap, and Vietnam can be entertaining for all three months of your first visa there.
Trekking in Nepal during peak season might not sound like the most sensible choice for penny-pinching backpackers. But you can still enjoy the ideal weather without spending a fortune on in-demand hotels and expensive permits if you're happy to swap big-name trails, like Everest Base Camp and the Annapurna Circuit, for quieter treks to Kanchenjunga Base Camp and around the Langtang Valley. Idyllic conditions (dry but not witheringly hot) are also on offer in Rajasthan, one of India’s most vibrant and varied states. Chug between notable, attraction-rich cities like Jaipur, Jodhpur and Udaipur on an atmospheric and wallet-friendly Indian train, snacking on spicy pakoras and sipping sugary chai en route.