Record high temperatures in Japan could curb the country¡¯s rice production, threatening to create shortages of the staple grain and fresh price spikes as public resentment mounts over the cost of living.

Key rice-producing regions like Tohoku and Hokuriku saw the least amount of rain in July on record that goes back nearly 80 years, while a heat wave this month has broken multiple temperature records and scorched much of the country.

Such weather extremes may impact the harvest that typically starts in late summer, at a time when rice supplies have already been strained by adverse weather in recent years. That risks fanning prices that are already about 50% higher than a year ago, which could heap pressure on household budgets and political leaders.