The country's export log prices have dipped to a seven month low.

AgriHQ's monthly survey of exporters, forest owners and saw millers show the decrease is due to a stronger local currency and weaker prices in key export markets.

The average wharf gate price for New Zealand A-grade logs dropped to $114 in July, down $2 a tonne from June.

It's the lowest level since January, where the price was $115 a tonne.