El Niño may increase hay fever severity in Auckland
Thursday 18 September 2025 · 3 outlets · 3 reports · updated In this story Morning Report, Victoria University of Wellington
New research suggests the El Niño climate phenomenon could make Auckland's pollen seasons longer and more intense. This may lead to more frequent allergy flare-ups for residents. However, a lack of national monitoring means many New Zealanders remain unaware of these seasonal changes.