When to Go
Tanzania has a tropical climate with hot temperatures and high humidity, especially nearer the coast. The higher you are – and much of the interior is at altitude – the lower the temperature, particularly at night. On the coast be prepared for showers at any time.
From June to September (dry season)
The weather is less hot and less humid, but still warm. It’s a good time for game viewing and ideal for walking safaris, as animals start to congregate around shrinking water sources. Temperatures become increasingly hot through October, with heavy concentrations of game around lakes and rivers.
From November to May (rainy season)
Things get increasingly wet and sticky, with April and May having the heaviest rainfall. This is the ‘green season’ with lush vegetation, full rivers and lakes, and abundant birdlife and wild flowers, as well as baby animals.
Within this framework, different areas have different patterns. Whale shark season is October to March.