With the UK also in recession, the figures may focus officials on both sides to secure a trade deal - which is set to be the first Britain has negotiated independently of the EU for 47 years.
Panmure Gordon chief economist Simon French said that UK-Japanese trade is worth around £17 billion a year “so a slowdown in the Japanese economy is not great for aggregate demand in the UK - albeit at a far lower relevance that eurozone/US growth.”
He added: “Low growth will mean capital leaving Japan looking for a greater return - attracting Japanese foreign direct investment remains a key part of the relationship for the UK.”