Compare Ben Nevis, Scafell Pike and Yr Wyddfa (Snowdon) before choosing a start date for the 24-hour National Three Peaks Challenge.
Every summit is shown side by side. The combined grade gives extra weight to the weakest forecast.
A rough, clagged-in day on Ben Nevis: summit wind broadly 30-45 mph, with gusts 55-65 mph early in the morning (storm-force winds).
A rough, clagged-in day on Scafell Pike: summit wind broadly 30-40 mph, with gusts 45-55 mph during the evening (gale-force winds).
A grey, cloudy day on Snowdon - Yr Wyddfa: summit wind broadly 25-35 mph, with gusts 40-50 mph during the morning (gale-force winds).
Weather data: Open-Meteo (CC BY 4.0). Adapted by Mountain Weather.
Daytime blocks across Fri 4 Sep and the following day.
Compare a north-to-south sequence with the reverse. These broad blocks are not arrival times or a route schedule.
Ben Nevis to Yr Wyddfa
Yr Wyddfa to Ben Nevis
The National Three Peaks Challenge links the highest mountains in Scotland, England and Wales. Conditions can differ sharply between the three summits, so this page keeps each forecast visible rather than reducing the route to one national weather symbol.
For this challenge, the selected date is treated as the start date. The sequence comparison uses the first summit in the afternoon or evening, the middle summit the following morning and the final summit the following afternoon or evening. It is a broad weather comparison, not a route schedule.
Read National Three Peaks route information