Malaysia is in the middle of its most intense hot spell in recent memory. Temperatures in parts of the north have breached 40°C, heatwave alerts have been issued across multiple states, and health authorities are urging the public to take the warnings seriously. If you've been feeling like it's unusually brutal outside lately — you're not imagining it.
Here's everything you need to know: which states are affected, what the alert levels mean, how to protect yourself, and why this heatwave could last much longer than expected.
🌡️ Malaysia heatwave 2026 — at a glance
🔴
Highest level active
Level 2 Heatwave
🌡️
Peak temperatures
Up to 40°C
📍
Most affected
Kedah, Perlis, Perak, Penang
📅
Expected to last until
June 2026
🏥
Heat illness cases (2026)
15 cases, 1 fatality
⚠️
Cause
Monsoon transition + El Niño
What are the MetMalaysia heatwave alert levels?
MetMalaysia uses a three-tier hot weather alert system. Level 1 (Caution) means temperatures of 35–37°C for at least three consecutive days. Level 2 (Heatwave) means 37–40°C for three or more consecutive days. Level 3 (Extreme Heatwave) is declared above 40°C — Malaysia has not reached this level yet.
It's worth understanding what these levels actually mean before looking at which states are affected. MetMalaysia doesn't issue a heatwave alert after a single scorching afternoon — the thresholds are based on sustained temperature highs over multiple consecutive days, making them a meaningful indicator of prolonged dangerous heat rather than the usual Malaysian afternoon spike.1
| Alert level |
Temperature threshold |
Duration required |
Status in March 2026 |
| Level 1 — Caution | 35°C – 37°C | 3+ consecutive days | ⚠️ Active — multiple states |
| Level 2 — Heatwave | 37°C – 40°C | 3+ consecutive days | 🔴 Active — Kedah, Perlis, Perak |
| Level 3 — Extreme Heatwave | Above 40°C | 3+ consecutive days | ✅ Not yet reached |
Which states in Malaysia are affected by the heatwave?
As of 27 March 2026, Perlis and multiple districts in Kedah and Perak are under Level 2 Heatwave status, with temperatures hitting 37–40°C for three or more consecutive days. Thirteen additional areas across Kedah, Penang, and Perak are under Level 1 Caution. The north of Peninsular Malaysia is the hardest hit.
The heatwave is heavily concentrated in the northern peninsula, where geographical factors and the current monsoon wind pattern have combined to produce both higher temperatures and a severe rainfall deficit. Some districts in Kedah have recorded up to 17 consecutive days without rain, according to MetMalaysia.2
🔴 Level 2 — Heatwave (37–40°C)
Kedah
Kota Setar, Pokok Sena, Pendang, Baling, Sik
Perlis
Entire state under Level 2
⚠️ Level 1 — Caution (35–37°C)
Kedah
Padang Terap, Kubang Pasu, Pulau Langkawi, Kuala Muda, Kulim, Bandar Baharu
Penang
Timur Laut, Daerah Utara
Perak
Selama, Kinta, Kuala Kangsar, Perak Tengah
Source:
The Star, MetMalaysia update as of 27 March 2026. Alerts updated daily — check
met.gov.my for the latest.
Why is Malaysia so hot right now?
Malaysia is currently in the final phase of the Northeast Monsoon, a transition period that typically brings reduced rainfall and higher temperatures — especially in the northern peninsula. MetMalaysia has confirmed that drier-than-usual conditions are expected to continue, with temperatures peaking between mid-March and mid-April 2026.
The heat isn't random — it's a convergence of several factors that MetMalaysia has been tracking. The Northeast Monsoon is winding down, which naturally reduces cloud cover and rainfall across the northern states. At the same time, the sun's position moves directly overhead this region during the transition period, amplifying ground-level heat significantly.3
There's also a longer-term concern. Climatologist Prof Emeritus Fredolin Tangang has flagged that El Niño is expected to return between July and August this year and could intensify toward year-end. Combined with a positive Indian Ocean Dipole (IOD) forecast, Malaysia may be heading into a prolonged period of dry weather that raises the risk of forest fires and haze — not just in the next few months, but into 2027.4
🌬️
Monsoon transition
Northeast Monsoon ending = reduced cloud cover and lower rainfall, especially in northern states. This happens every year from February to April.
☀️
Sun overhead
The sun sits almost directly above Malaysia during this period, maximising heat absorption at ground level — no tilt, no shade from the angle.
🌊
El Niño looming
El Niño is expected to return by July–August 2026, with climatologists warning of a strong phase that could extend into 2027, bringing more dry spells.
💧
Rainfall deficit
Kedah and Perlis have recorded up to 17 consecutive rainless days. The Muda dam in Kedah sat at just 7.97% capacity as of 22 March 2026.
How long will Malaysia's heatwave last?
According to MetMalaysia director-general Hisham Anip, the heatwave is expected to persist until June 2026, with the worst temperatures forecast between mid-March and mid-April. Some rainfall is expected from the monsoon transition phase starting late March, which may bring slight relief — but overall conditions will remain hot and dry.
The good news: MetMalaysia has indicated that increased rainfall should arrive from the end of March onwards, particularly in the west coast and interior areas of Peninsular Malaysia. The monsoon transition phase, expected from late March to May, will bring scattered afternoon showers that should lower temperatures slightly in affected areas.2
The less good news: this is unlikely to end the heat spell outright. Temperatures in the northern states are expected to remain elevated well into June, and authorities have flagged that the longer-term El Niño risk could mean an even hotter second half of the year. MetMalaysia has also noted that Malaysia has the potential to reach a Level 3 extreme heatwave if a strong El Niño materialises — although no such conditions have been reached yet.5
How dangerous is this heatwave? What KKM is warning about
Malaysia's Ministry of Health (KKM) has issued a public health advisory urging the public to recognise early warning signs of heat-related illness. From January to late March 2026, KKM recorded 15 heat illness cases — including 11 cases of heat exhaustion, three of heat stroke, and one fatality involving a child left unattended in a vehicle.
KKM has been clear: heat stroke doesn't happen suddenly. It develops progressively, which means early symptoms are your warning window to act before it becomes life-threatening. Health Minister Dzulkefly Ahmad has specifically stressed that children must never be left in parked vehicles — even for a minute — as car temperatures can rise by more than 11°C within just 10 minutes under the sun.6
Groups at highest risk include children, the elderly, those with chronic illnesses, and outdoor workers including construction staff, delivery riders, and plantation workers. According to KKM, prolonged exposure to extreme heat can lead to symptoms ranging from headaches, fatigue and muscle cramps through to severe dehydration, confusion, loss of consciousness and, in worst cases, coma.7
🏥 Know the signs: heat exhaustion vs heat stroke
Heat stroke is a medical emergency — call 999 immediately
⚠️ Heat exhaustion
•Heavy sweating
•Fatigue and weakness
•Dizziness or faintness
•Nausea or headache
•Muscle cramps
•Pale, cool, moist skin
Move to shade, cool the person down, give cool water. Seek medical help if symptoms persist.
🚨 Heat stroke (emergency)
•Body temp above 40°C
•Confusion or disorientation
•Stops sweating despite heat
•Loss of consciousness
•Rapid, strong pulse
•Skin hot, red and dry
Call 999 immediately. Apply ice packs to armpits and groin while waiting for help.
How to stay safe during Malaysia's heatwave
KKM advises avoiding outdoor activity during peak heat hours between 11am and 4pm, drinking at least eight glasses of water daily even if not thirsty, wearing light and loose-fitting clothing, and monitoring vulnerable family members — especially children and the elderly — closely. Never leave anyone in a parked vehicle.
Most of the risks from this heatwave are preventable with simple adjustments to your daily routine. The key is taking the sustained nature of the heat seriously — this isn't a one-afternoon spike, it's a weeks-long weather event that compounds the effects of sun exposure and dehydration.7
☑️ Your heatwave safety checklist
Tap to tick off as you go
💧 Hydration
Drink at least 8 glasses (2 litres) of water daily
Even if you don't feel thirsty — your body is already dehydrating in this heat
Avoid sugary, caffeinated and carbonated drinks as your main fluid
These dehydrate you faster — stick to water or electrolyte drinks
Carry a water bottle whenever leaving the house
Don't rely on finding a shop — especially in the northern states
🌞 Outdoor activity
Avoid strenuous outdoor activity between 11am and 4pm
Peak heat hours — especially dangerous for outdoor workers and children
Wear light-coloured, loose-fitting cotton clothing
Helps your body regulate temperature and reduces heat absorption
Apply SPF 30+ sunscreen when heading outside
Sunburn makes it harder for your body to cool down
👨👩👧 Protect vulnerable family members
Never leave children unattended in a parked vehicle
Car temperature can rise 11°C in just 10 minutes under the sun — even with windows cracked
Check on elderly family members and neighbours regularly
Seniors struggle to regulate body temperature and may not recognise symptoms in time
Keep children hydrated and limit outdoor playtime in the afternoon
Kids are especially vulnerable and may not communicate discomfort clearly
🏠 At home
Use fans or air conditioning during peak afternoon hours
If you don't have aircon, keep curtains closed on sun-facing windows
Monitor dam and water supply news if you're in an affected state
Low dam levels in Kedah and Perak could lead to water rationing
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🗳️ How are you dealing with the heatwave?
Vote below — we'll show how other Malaysians are coping!
🏠 Staying indoors and blasting the aircon38%
🌊 Heading to the pool or beach to cool off29%
🧊 Drinking cold water and hoping for rain22%
😅 Just sweating it out like a true Malaysian11%
Frequently asked questions
Which states in Malaysia are under heatwave alert in 2026?+
As of 27 March 2026, Perlis, parts of Kedah (including Kota Setar, Pokok Sena, Pendang, Baling, and Sik), and Hulu Perak in Perak are under Level 2 Heatwave alerts, with temperatures between 37°C and 40°C for three or more consecutive days. Thirteen additional areas in Kedah, Penang, and Perak are under Level 1 Caution (35–37°C). Check met.gov.my for daily updates as the alert zones change.
How long will Malaysia's heatwave last?+
MetMalaysia has confirmed the heatwave is expected to continue until June 2026, with temperatures peaking between mid-March and mid-April. Some relief is expected from the monsoon transition phase starting in late March, but temperatures will remain high — particularly in northern Peninsular Malaysia. Longer-term, El Niño is expected to return by July–August, which could extend dry and hot conditions further into the year.
What is a Level 2 heatwave in Malaysia?+
A Level 2 Heatwave alert in Malaysia, as defined by MetMalaysia, means an area has recorded daily maximum temperatures between 37°C and 40°C for at least three consecutive days. This is the second-highest classification in MetMalaysia's three-tier system. A Level 3 Extreme Heatwave (above 40°C for three consecutive days) has not yet been declared anywhere in Malaysia.
What are the symptoms of heat stroke in Malaysia's hot weather?+
Heat stroke symptoms include a body temperature above 40°C, hot and dry skin (the person stops sweating despite the heat), confusion or disorientation, rapid strong pulse, and loss of consciousness. Heat stroke is a medical emergency — call 999 immediately. While waiting for help, move the person to shade, remove excess clothing, and apply ice packs to their armpits and groin. Do not give fluids to an unconscious person.
Will there be water rationing in Malaysia due to the heatwave?+
There is an elevated risk, particularly in Kedah and Perak. The Muda dam in Kedah sat at just 7.97% capacity as of 22 March 2026, with multiple other dams in Kedah, Perlis, and Perak at caution levels. MetMalaysia has warned that prolonged hot and dry weather could lead to water supply disruptions. Residents in northern states should follow local water authority announcements closely.
Stay safe — and stay cool
This heatwave is real, it's prolonged, and it's not going away quickly. If you're in the affected northern states, take the MetMalaysia and KKM advisories seriously — especially if you have children, elderly family members, or anyone who spends time outdoors. Hydrate early, limit your time outside during peak hours, and keep a close eye on anyone who might be struggling in the heat.
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