February export figures are expected to remain in the red due largely to the strong baht and slow global economic recovery.
Commerce Minister Chatchai Sarikulya said last month's export value was expected to be close to January's.
Economic conditions in several major trade partners including China, Japan and the EU remained weak last month, while the Thai currency was less competitive against other competitors, he said.
The Commerce Ministry is due to release February export figures next week.
But a ministry source said exports fell for a second consecutive month, down by 3.4% year-on-year.
Exports in January contracted by 3.46% year-on-year to US$17.2 billion, the biggest fall since last August. In Thai-currency terms, the value contracted by 2.34% to 563 billion baht.
Last December, exports rose by 1.9% year-on-year to $18.8 billion, but full-year shipments still declined 0.41% to $228 billion, the second down year in a row.
The January dip in exports was attributed largely to lower farm and petroleum products as oil prices tumbled.
Farm exports contracted by 13% year-on-year in January to $2.56 billion. Rubber, sugar and rice exports dropped significantly, while food exports grew modestly by 1.7%.
Rice shipments declined 12.6% to 608,504 tonnes, with the value down 13% to $333 million as several countries switched to cheaper rice from other producers.
Manufactured exports rose by only 0.6% year-on-year to $13.7 billion.
Products that performed well included integrated circuits, up 21% year-on-year in January, cars were up 11.7%, steel 9% and computers and parts 3.7%.
Gen Chatchai held a joint meeting with directors of 62 Thai trade centres in 46 countries and territories this week to evaluate export performance and risk factors facing shipments.
Despite several agencies painting a bleak outlook for exports, the ministry remains optimistic of 4% growth for them this year.