Golf-inspired sportswear company Ashworth Inc says its second-quarter income took a plummet, affected by bad weather hampering golf apparel sales and expenses connected to a new distribution centre.

Net income for the second quarter totalled $4.8 million compared to $5.7m for the same quarter last year.

Net sales, however, rose 18 per cent to $64.7m from $54.7m a year ago, with revenues from the acquisition of Gekko's brands providing 14 per cent of the total increase and revenues from the Ashworth and Callaway Golf apparel brands collectively rising 4 per cent.

Randall Herrel Sr, chairman and chief executive officer, said: "Net revenues are up in all our distribution channels other than 'on-course' golf, where weather had the largest impact.

"The fact that we could still grow revenues 18 per cent year-over-year highlights the considerable benefits of our multi-brand, multi-channel business model, which is becoming increasingly diversified across product, channel and geography."

Ashworth now expects full-year revenues of between $207 and $212m compared to its previous guidance of $207 to $215m.

Ashworth Inc is a designer of men's and women's golf-inspired lifestyle sportswear distributed domestically and internationally in golf pro shops, resorts, upscale department and specialty stores and to corporate customers.