The company said its pretax profits for the 26 weeks to 26 September fell to £5.4m, down from £6.4m a year earlier.
But like-for-like sales climbed two per cent higher in the first half, having risen by 6.1 per cent in the second quarter.
Revenue grew 6.5 per cent to £97m in the 26 weeks to September 26.
Chief executive Beth Butterwick said: "Trading conditions during November have been challenging, due to very mild, wet weather. Our expectations for the full year remain unchanged, provided that trading conditions normalise for the remainder of the financial year."
She added that the company's performance for the first half of the year was "satisfactory".