9 things Malaysians should know, prepare for the coming La Nina
Although the phenomenon is projected to last only a short time, its effects, especially on rainfall distribution, could still pose significant challenges.
SHAH ALAM – Malaysia is expected to experience a brief La Nina episode at the end of 2025 through early 2026, according to the National Climate Centre under the Malaysian Meteorological Department (MetMalaysia).
Although the phenomenon is projected to last only a short time, its effects, especially on rainfall distribution, could still pose significant challenges for Malaysians.
Forecasts show that the El Nino–Southern Oscillation (Enso) is currently neutral with the Oceanic Nino Index recorded at -0.1°C for May–July 2025, but international climate models suggest La Nina may briefly take hold in early 2026 before stabilising again.
During this period, cooler-than-usual sea surface temperatures in the Pacific Ocean could translate into heavier rain, cooler weather, thunderstorms and higher flood risks across Southeast Asia, including Malaysia.
Here are nine important things to know and how you can prepare.
1. What La Nina actually is
La Nina occurs when equatorial sea surface temperatures across the central and eastern Pacific Ocean cool significantly, sometimes by as much as 14°C.
This cooling disrupts global weather systems, often bringing heavier rainfall and cooler temperatures to countries like Malaysia and Indonesia. Unlike El Nino, which causes warming, La Nina tips the balance the other way.
2. Expect wetter days and possible floods
La Nina means more frequent heavy rainfall that could trigger flash floods, particularly in flood-prone lowlands and urban areas. Prolonged rainfall also raises the risk of landslides in hilly regions.
The public is advised to keep valuables and documents in waterproof storage, prepare emergency supplies and pay close attention to evacuation orders if issued.
3. Commuting long distances? Plan wisely
For Malaysians travelling across states for work or ‘balik kampung’, wet season travel can be unpredictable. Always check weather updates before hitting the road. Keep a torchlight, powerbank, raincoat and emergency kit in your car.
Avoid driving through flooded roads and if you must travel at night, inform family or friends of your route for safety.
4. Keeping kids safe during wet season
Parents should prepare for wetter school runs and outdoor play disruptions. Equip children with raincoats instead of umbrellas (safer against strong winds) and ensure they have non-slip footwear.
For younger children, avoid areas with open drains or flooded playgrounds. Have indoor activities planned to keep them active when outdoor play is not possible.
5. Laundry routines need adjustments
Frequent rain means drying clothes outdoors will be a struggle. Young adults living in apartments or hostels should consider investing in foldable indoor drying racks or small heated dryers.
Those in landed homes can use covered porches or car porches as makeshift drying areas. Plan laundry on days forecasted to be sunnier and avoid leaving damp clothes indoors too long to prevent mould growth.
6. Staying safe as a walker or jogger
For fitness enthusiasts, exercising outdoors during La Nina season requires caution. Avoid jogging near rivers, under large trees or in poorly lit areas during heavy rain. Opt for indoor gyms or covered tracks when possible.
If caught in a thunderstorm, seek shelter immediately as lightning risk is higher during prolonged storms. Waterproof reflective gear can also improve safety for those who prefer to continue outdoor routines.
7. Homeowners: Protect your property
Heavy rain and strong winds can cause structural damage. Just yesterday, a storm at PPR Cempaka, Pantai Dalam, Kuala Lumpur tore zinc roofs off and damaged dozens of cars.
For those in landed homes, check your roof tiles, gutters, and drainage regularly. Clear debris to avoid blockages. For high-rise residents, secure balcony items, as strong winds can send them flying. Avoid leaving vehicles parked near weak structures or under unstable trees.
8. Indoor essentials every household should prepare
Every Malaysian home whether landed or high-rise, should prepare for sudden power cuts and disruptions. Store clean water for drinking and bathing, stock up on non-perishable food, keep a first-aid kit and have a powerbank ready.
Avoid touching electrical appliances or cables during floods and lock windows and doors before evacuating if needed.
9. Stay updated and weather-aware
Between Sept 22 to Sept 25, MetMalaysia has already forecast strong westerly winds that could trigger storm lines in northern Sarawak, western Sabah and Labuan. This highlights how quickly conditions can change.
Always stay tuned to MetMalaysia’s warnings via social media or official apps. Being weather-aware is one of the simplest yet most effective ways to keep yourself and your family safe.
The bigger picture
While La Nina 2025–2026 is forecast to be short-lived, its effects on rainfall, floods and daily routines cannot be ignored.
By making early preparations whether it is travel, family safety, fitness or protecting your home, Malaysians can reduce risks and stay resilient.
As MetMalaysia stressed, vigilance and preparedness remain key. With practical adjustments, this brief episode can be managed with minimal disruption to our lives.
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