The climate in Uzbekistan varies depending on whether you're in a desert or mountainous region. What's more seasonal temperature variations are very wide. Winters are harsh and summertime baking. It's best, therefore, to visit Uzbekistan during spring or fall. If you're heading to the plains, April to June and September to November are clement months. However, during these very same months, frequent and heavy rainfall hits the mountainous regions. Avoid March, the rainiest month of the year.