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We strongly recommend that you purchase a travel insurance policy that includes trip interruption/cancellation coverage. You will receive information about travel insurance coverage with your trip confirmation materials.
For travelers on Nomad Unlimited Adventures, trip insurance is optional and comes at an additional cost. We strongly recommend that you purchase insurance which may reimburse you for non-refundable trip costs. One company we recommend and trust us USI. Click here for more details.
The best tourist season for the park is from June to September. The majority of Yellowstone Park is located above an altitude of 1800 meters (without altitude sickness), and the climate is unstable. It can rain or snow in any month of the year, so visitors should bring rain gear and warm clothing regardless of when they come.
June/July/August: The daytime temperature is around 25°C, and it cools down at night, with some high-altitude areas dropping below 0°C. Most roads and facilities are open. Weather forecast: check here. May and September/October: The daytime temperature ranges from 0°C to 20°C, and the night temperature ranges from -5°C to -20°C. Snow is common, and some roads may be temporarily closed while some facilities are still open
Winter (November to April): The daytime temperature ranges from -20°C to -5°C, and the night temperature is below 0°C. The historical lowest temperature record is -54°C. Only the north gate of the park is open.
Yellowstone is one of the largest national parks in the United States, and there is a lot of ground to cover. Occasionally weather conditions, seasonal road closures, or factors outside our control may affect access to certain areas or attractions. When this happens your guide will adapt the day and take you somewhere else worth seeing. Your guide knows the park well and will make sure your day is still memorable, whatever the conditions.