Crisis management experts say Bangkok's recent bombings do not pose a long-term threat in an otherwise relatively safe country. But they are nonetheless advising Japanese staying in the Southeast Asian city to exercise caution.

"Basically I don't think Thailand right now is too dangerous," said Tetsuo Masuda, who heads Japan I-Sis Consulting Co., a Tokyo-based crisis management consultancy. "But I always say this: There is no zero-risk place in the world."

Thailand started experiencing political turmoil in the second half of 2013. But the country has remained politically stable, with no major risks for violence, since the military regime took over the country in a May 2014 coup.