Each year, thousands of young people take up the Ten Tors challenge across Dartmoor National Park.
The weather plays a major part in the successful completion of the event for everyone taking part.
Take a look at how the weather has been between 9-10 May over the last 20 years (PDF, 1001 kB) and check the Dartmoor National Park forecast before you set off. You can also check river levels and flood warnings with the Environment Agency.
Back to the events calendar.
9-10 May - Will the weather be kind to the students taking part in the Ten Tors challenge? Check the forecast for Dartmoor.
You can also check to see if there have been any weather warnings issued that will affect Dartmoor National Park over the Ten Tors weekend.
To find out further information about the event, visit the Ten Tors website.
400 teams of six take part in the challenge to complete the course. There are three different course lengths, depending on the age and ability of the team:
The idea of the challenge is for the teenagers to become self-sufficient for the weekend - carrying everything they'll need for the trek and making their own decisions.
The weather has played a major part in previous Ten Tors challenges. In the event's recent history, competitors have had to deal with a variety of weather conditions (PDF, 1001 kB) . In 1998, high temperatures meant there was a severe risk of dehydration for the participants. However, two years before that, there were severely low temperatures and Dartmoor National Park was struck by a sleet and snow storm which lead to the military having to rescue some of the young people.
Take some time to watch this series of short videos on the skills needed to stay safe both out on the moors and the mountains.
Lt Col Tony Clark OBE PARA explains just how much the weather plays a part in the Ten Tors event at Dartmoor National Park.
Good luck to all those taking part in this year's event.
The infographic below provides a summary of weather conditions at Okehampton on Dartmoor, over the last 20 years on the 9-10 May. Please feel free to download it as a pdf. (PDF, 1001 kB) .
Ten Tors Infographic 2015
You can check the weather forecast for other events through the Events Calendar.
If you're looking for content for your own website, take a look at our weather widget.