Taitokerau is being warned to prepare for a potentially long, hot and dry summer as a strengthening El Niño weather pattern threatens water supplies, farming communities and the region’s already vulnerable rivers and groundwater systems.
Northland Regional Council says the impacts of El Niño are becoming increasingly evident, with September rainfall across the region falling to just 52 percent of normal levels.
The region recorded an average of only 62 millimetres of rain during September, leaving river flows, groundwater levels and soil moisture well below what would normally be expected at this time of year.
Council monitoring manager Jason Donaghy says the emerging conditions are concerning, particularly as climate forecasts indicate El Niño could strengthen further heading into late spring and early summer.
Scientists are warning that the current El Niño event could rank among the strongest on record, potentially rivalling the powerful 1997–98 event that contributed to significant drought conditions across parts of New Zealand.
The latest Northland Regional Council climate report shows river flows ranging from below normal to extremely low, with eastern, central and southern parts of the region experiencing some of the greatest pressure.
Groundwater recharge has also slowed as rainfall declines, while soil moisture levels have fallen below normal across much of Taitokerau.
The outlook for October through December suggests rainfall, river flows and soil moisture are all more likely to remain below average, increasing the risk of drought developing over the next three months.
Māori Communities and Rural Water Supplies at Risk
For Māori communities across Taitokerau, the prospect of an extended dry period raises concerns about water security, particularly for rural marae, papakāinga and whānau who rely on rainwater tanks, private water supplies or local waterways.
Many rural communities already face infrastructure challenges, with limited access to reticulated water systems and significant costs associated with maintaining reliable supplies.
A prolonged drought could place additional pressure on whānau, particularly those managing small farms, horticultural operations, livestock and other land-based businesses.
The potential impacts extend beyond household water supplies, with declining river flows also threatening freshwater ecosystems, wetlands and culturally significant waterways.
For hapū and iwi working to restore the mauri of their awa and protect native freshwater species, extended dry conditions could create further environmental challenges.
Farmers and Growers Urged to Prepare
The strengthening El Niño pattern is also raising concerns for Northland’s agricultural and horticultural sectors.
Below-average rainfall, combined with warmer temperatures and stronger westerly winds, could accelerate moisture loss from soils and increase pressure on pasture growth, crop production and livestock water supplies.
The council says there is a moderate risk of drought developing over the coming three months, although Northland was not officially experiencing drought conditions at the end of September.
That distinction is important, with authorities encouraging early preparation rather than waiting until water shortages become severe.
Residents are being encouraged to check water tanks, repair leaks, monitor water consumption and establish contingency plans should normal supplies become unreliable.
The council is continuing to monitor rainfall, river flows, groundwater and soil moisture, while working with district councils and other agencies on preparedness.
Earth Sciences New Zealand says the current El Niño is continuing to strengthen in the tropical Pacific, influencing weather patterns across Aotearoa.
For Northland, El Niño typically increases the likelihood of drier conditions, particularly in eastern areas, as prevailing winds shift towards more frequent westerlies.
The October to December outlook indicates a 45 percent probability of below-average rainfall and a 50 percent probability of above-average temperatures.
Scientists expect the climate pattern to peak in late spring or early summer, with the potential for significant impacts on water resources and drought conditions.
However, El Niño does not eliminate the risk of heavy rainfall or severe storms, with the tropical cyclone season beginning on November 1.
The combination of possible drought, stronger winds and occasional intense weather events reinforces the need for communities to prepare for a range of conditions.
Northland Regional Council is urging residents, businesses and rural communities to act early to conserve water and reduce their exposure to potential shortages.
For Māori communities, the approaching summer highlights the importance of long-term investment in water infrastructure, climate resilience and locally led environmental management.
It also raises wider questions about whether rural communities, marae and papakāinga have adequate resources to withstand increasingly challenging weather patterns.
With summer only weeks away, authorities are warning that the region’s water resources could come under increasing pressure if rainfall remains below normal.
For whānau across Taitokerau, the message is clear: prepare now, conserve water where possible and do not wait for drought conditions to arrive before taking action.
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