The South Island of New Zealand has seen a significant decrease in lambs tailed by an estimated 645,000 head (6.4%), bringing the total to 9.7 million in 2024. This decline is primarily due to fewer breeding ewes and a lower ewe lambing percentage, attributed to adverse weather conditions including dry spells in Canterbury, cold snaps in high country areas, and persistent rain and cold in the Southern South Island. Despite these challenges, effective farm management has mitigated total losses. This reduction in lamb numbers is anticipated to impact finishing farms, potentially affecting their revenue. Consequently, the first quarter of South Island lamb processing is projected to be 25% lower than the previous year, although a tight global supply may balance this by increasing export prices.