Dartmoor National Park in January

May through September offers the most reliable weather, with July and August bringing the warmest temperatures and longest days. But here's the thing — summer also brings crowds to popular spots like Haytor and Widecombe. May and September hit the sweet spot with decent weather and fewer people. Spring brings wildflowers and newborn foals, while autumn paints the moor in bronze and gold. Winter has its own magic — crisp clear days with snow-capped tors — but weather can turn dangerous quickly. The annual Dartmoor Pony Drift happens in late autumn when riders round up the free-roaming herds, creating quite a spectacle. Avoid school holidays if you want solitude, especially around Easter and summer break. Weather changes rapidly year-round, so check forecasts and be prepared to change plans. Early morning visits reward you with misty, atmospheric conditions and better wildlife spotting opportunities.