An Airbnb revenue forecast is a month-by-month projection of occupancy, ADR and revenue for one property, set beside comparable listings. Buyers use it to test a purchase, operators use it to check an arbitrage lease, and hosts use it to set targets for a live listing.
What I plan around in Biarritz: surfing on the Cote des Basques and Grande Plage; Fetes de Bayonne; Belle Epoque Biarritz; Saint-Jean-de-Luz and the Basque coast. Guests I price for: surfers and French and Spanish families on 5 to 7 night stays in central Biarritz, Anglet and Saint-Jean-de-Luz. Where I start: peak-summer and Fetes de Bayonne premiums, the Biarritz change-of-use compensation rules that restrict new holiday lets, and a September surf shoulder.
For Basque coast hosts I set up PriceLabs or Wheelhouse with weekly summer bands, festival uplifts, a September surf shoulder and winter monthly rates, keeping Airbnb, Booking.com, Vrbo and Abritel aligned so French and Spanish guests see the same totals.
The service in general is described on my airbnb revenue forecast page; this page covers how I apply it in Biarritz.