In Spain we think the total harvest of black truffle (melanosporum) has been around 80-100 Tons, like previous season 2018-19. From the figures I see in France looks like volumes were pretty low and Italy produced some more than other seasons.
Figure from the last season in the Estación de Mora de Rubielos (Teruel) whole sale truffle market (means dirty truffle, all qualities mixed, not graded yet), the largest truffle market in Spain:

Blue line: whole sale minimum price Red line: whole sale maximum price
I would like to thank the Asociación de Truficultores de Teruel to allow me to use this data.
Here a comparison with other truffle markets in two random weeks. Where it writes “al detalle” means “retail”:


If you want to compare with previous years, check this link:
If you want to check data from other markets, here some links:
- Carpentras (France): http://www.carpentras.fr/pratique/foires-et-marches/marche-aux-truffes-dhiver.html


- Richerenches y Uzès (France): https://rnm.franceagrimer.fr/prix?TRUFFE&12MOIS
- Vic (Barcelona, Spain): http://www.llotjadevic.org/es/noticies/16/trufa (under payment)
We start the new black truffle season in Spain in 2 weeks. Even at the beginning of summer truffles were formed properly, in lots of areas season look pretty bad as we had a hot summer, plus there was a lack of rain specially at the end of summer and this fall. Looks like Italy and France is not gonna be better. So a typical year where prices should go up, but due to Covid and lack of demand probably they will be pretty low. Good luck everyone!
Cheers,
Marcos S. Morcillo