Climate
Tanzania's climate is predominantly tropical. Coastal areas are usually hot and humid. The average day temperature is 30 degrees Celsius. Tanzania has two rainy seasons: the long rains from late March to June, and the short rains from November to January. The hottest time of the year is from December to March, before the long rains. The coolest months are from June to August. In high altitude areas such as Kilimanjaro and the Ngorongoro highlands, temperatures can fall below freezing point.

Generally, days are warm in the northern parks, with safari shirts and trousers or shorts being appropriate dressing and a pullover or jacket for the cooler evenings. In the Ngorongoro Crater it can be very cold at night and in the early morning, so warm clothes are needed. Bright colours should be avoided. Since the equatorial African sun is very strong, a wide-brimmed hat, high factor sunscreen and sunglasses are recommended as protection.

Health
It is recommended that all visitors see their doctor 4-8 weeks prior to departure for advice on medication - including malaria prophylactics - and vaccinations. Most visitors will need vaccinations for hepatitis A, typhoid, yellow fever and polio and a yellow fever vaccination certificate is required. Tanzania has tropical weather, therefore it is important to take precautions against Malaria. Malaria comes through mosquito bites; in order to avoid it, please take with you mosquito repellent and, especially before sunrise and after sunset, wear light clothes. It is also extremely important to wear sunscreen, as Tanzania is just below the Equator.

Health and travel insurance are highly recommended, and visitors should ensure that their travel insurance includes emergency evacuation.