Get ready for a summer of weather extremes

Now is a good time for Christchurch and Banks Peninsula residents to get ready for the hot, dry and windy conditions expected in a strong El Niño summer, says Christchurch City Council.

“El Niño increases the risk of damaging

winds, high heat, dry conditions and wildfire,” says Manager Civil Defence and Emergency Management Brenden Winder.

“The important thing is to recognise the hazards, take sensible action early and be ready to adjust as forecasts become clearer.”

Scientists have confirmed that ‘a very strong El Niño climate pattern' is developing in the Pacific Ocean and it is likely to affect New Zealand this summer. Canterbury is likely to experience periods of hotter, drier and windier weather than usual.

“If these conditions occur, the risk of wind damage and wildfire will increase and water restrictions may be needed, particularly on Banks Peninsula,” Mr Winder says.

“We’d like people to take time now to check the risks around their property and make a household plan in case they need to evacuate or manage without normal services – there could be power outages, for instance.”

It’s also important to keep up with weather forecasts and to follow official advice, he says.

Strong winds

The main danger from strong wind is flying debris.

• Trim trees and remove dead wood.
• Check your roof, and secure outdoor items such as wheelie bins, trampolines and garden furniture.
• Close curtains and blinds or apply window film to reduce the risk of damage or injury from shattered window glass.
• Seal your garage and its doors with weather strips.

High heat

Keep your home cool and protect soft furnishings from the sun.

• Close curtains and blinds during the day.
• Window film can reduce heat entering a home by up to 78%.
• Create cross ventilation by opening windows on opposite sides of the house.
• If it’s hot inside but cool outside use a fan to draw cool air in and push warm air out. Open a window on the cool side and place a fan near to and facing an open window on the warm side.

Wildfire

A tiny spark can ignite a fire that can spread quickly, especially if it’s windy.

• Clear gutters and roofs – consider installing metal gutter guards.
• Move flammable items such as firewood and garden furniture away from the house when not in use, pull in awnings, trim trees and keep grass short.
• Seal gaps around the home – use fire-resistant sealants and weather strips.
• Clear leaves, debris, and flammable items from around the house and under decks.

Conserve water

Water is needed for drinking and other household, commercial and industrial uses, and firefighting. Water restrictions are likely on Banks Peninsula this summer.

• Water the garden every second day using a watering can or hand-held hose.
• Avoid watering your lawn.
• Take short showers and flush the toilet less often.
• Consider replacing your shower head with a low-flow head.
• Check for leaking taps and pipes and get them fixed.
• Report leaks on roads and footpaths to the council – use the Snap Send Solve app or call 03 9418999.
• If you’re on tank water, ensure your tank is well-maintained and clean.

“We can’t know exactly what El Niño will bring to Christchurch and Banks Peninsula,” says Mr Winder. “Preparing early isn’t about assuming the worst – it’s about recognising the hazards, taking practical steps and looking out for each other. A small amount of work now can make a big difference when conditions become hot, dry, or windy.”

Find out more information about El Niño and how to prepare for an emergency.