In December, it's winter in the northern hemisphere, so the heat is found only at tropical latitudes. In the countries of the Sahel and southern Sahara, it's usually the favorable season. In the southern hemisphere it's summer, and in general it's hot in southern Africa; in many areas the rainy season begins, and in the Indian Ocean cyclones are possible.
Where to go: Abidjan, Accra, Addis Ababa, Bamako, Cape Town, Conakry, Dakar, Johannesburg, Cairo, Lagos, N'Djamena, Nouakchott


In December, by now it's winter; it's very cold in continental Asia; in the south, the winter monsoon brings rain in the exposed slopes, for the rest at tropical latitudes the sun prevails. Sometimes latecomer cyclones may occur in the Philippines and in southeast Asia, especially in the first half of the month. You can go in southern cities, where usually it's warm or hot and it doesn't rain.
Where to go: Bangkok, Dhaka, Doha, Dubai, Ho Chi Minh City, Karachi, Kuwait, Mecca, Mumbai, Muscat, New Delhi, Phnom Penh, Taipei, Vientiane, Yangon

North and Central America

It's winter and it's very cold in Canada and in the north-central United States; there is some risk of some cool air masses moving south towards the Tropic. To play it safe, better go down in latitude.
Where to go: Guatemala City, Mexico City, Havana, Miami, San José, San Salvador, Santo Domingo, Tegucigalpa

South America

In the southern hemisphere, in December it's summer, so it's typically hot and rainy at tropical latitudes, and even at temperate latitudes it may be hot. Along the Pacific coast, the sun shines and the temperature is not too high.
Where to go: Lima


It's the first month of winter in Europe. On December 21, the winter solstice is the shortest day of the year. In Mediterranean countries, the weather is often still autumn-like, that is mild, but also with possible periods of bad weather.


It's summer in the southern hemisphere, so at tropical latitudes the weather is hot and muggy, with heavy rains and the passage of cyclones. In the northern hemisphere some tropical cyclone may still pass, at least in the first part of the month. The Australian Outback is on fire, while in the south the weather is usually warm but not too much, even if sometimes the wind from the desert can cause waves of scorching heat. The best season begins in the cooler New Zealand.
Where to go: Auckland, Wellington