Bhubaneswar: The World Metrological Organisation (WMO) report has predicted a 'Climatic Seesaw' for Odisha in coming decade. Odisha awaits a dangerous shift in the coming decade.

Even as the world braces for record-breaking heat in years to come, the State seems heading towards a far more complicated climate from 2026 – 35 than simple global warming.

Fresh WMO projections On Global Annual to Decadal Climate Update reveal a striking contradiction:

While India as a whole is likely to become wetter over the next five years, Odisha may still miss out on above-normal monsoon rainfall despite rising temperatures and rapidly heating seas around the subcontinent.
This comes as a very distressing for a state whose agriculture, groundwater, reservoirs and rural economy are deeply tied to the southwest monsoon, and the warning carries enormous implications.

Caprice Of Nature

The WMO projections indicate that India is entering a decade of unusual climate restructuring.

The Arabian Sea and Bay of Bengal are expected to warm faster than before, near-surface temperatures across India are projected to rise by around 1°C during 2026-2035, and India could witness one of the strongest positive sea-level pressure anomalies anywhere in the world.

But Odisha appears to sit inside a dangerous climatic transition zone where heat may intensify faster than rainfall reliability.

Odisha No Longer Following the Old Climate Rulebook

The WMO’s assessment of the last five years already shows Odisha and eastern India warming by roughly 0.5°C compared to the 1991-2020 baseline. That may sound modest, but it is significant because it comes despite parts of peninsular India remaining relatively cooler than the global trend.

The larger warming hotspots during 2021-2025 were northwestern states such as Rajasthan and Gujarat. Yet Odisha’s climate signal stands out for another reason: the warming is becoming increasingly seasonal and uneven.

From May to September – the core monsoon and heatwave period – eastern India displayed stronger positive temperature anomalies than many other parts of the country.

Even more alarming, Odisha and neighbouring Andhra Pradesh experienced warmer winter conditions between November and March.

The Impact

For ordinary people on the ground, this means winters may gradually stop offering relief.

·        The number of cool nights could decline.

·        Humidity-loaded heat may extend deeper into October and begin earlier in March.

·        Energy demand for cooling could surge even outside peak summer months.

·        Mosquito-borne disease cycles may stretch longer.

·        Crop cycles dependent on winter cooling could also face disruption.

The Hidden Threat: Rising Sea-Level Pressure

One of the least discussed but potentially most disruptive findings in the WMO report concerns sea-level pressure anomalies over India.

The report shows India – especially eastern and northern regions – already recorded positive sea-level pressure anomalies during 2021-2025.

The trend is projected to continue in 2026 with around 0.9 hPa positive anomaly and may intensify further during 2026-2030, when India could witness among the highest positive pressure anomalies globally.

The Impact
To ordinary citizens, “higher sea pressure” sounds technical. But its effects are deeply practical.

High atmospheric pressure generally suppresses vertical cloud formation.

In simple terms, it acts like a lid on the atmosphere. That can weaken thunderstorm activity, reduce local rain-bearing convection, prolong heat trapping near the surface, and disturb regional wind circulation.

For Odisha, this could translate into:

• Longer dry spells between rainfall events
• More erratic monsoon distribution
• Higher humidity combined with stagnant air
• Intensified urban heat stress in Bhubaneswar, Cuttack and coastal belts
• Reduced nighttime cooling
• Increased risk of flash droughts even in years with “normal” rainfall totals

Climate scientists have long warned that warming oceans do not automatically guarantee evenly distributed rainfall. Odisha may now be entering exactly that phase.

A Wetter India, But Odisha Could Still Lose Out

Perhaps the most startling conclusion from the WMO outlook is this.

India overall is projected to receive above-normal precipitation during the coming years, yet Odisha may not benefit proportionately.

The report’s precipitation outlook shows a generally wetter Indian subcontinent, supported by positive rainfall anomalies and favourable statistical confidence indicators such as Pearson correlation and ROC skill scores.

However, the regional maps indicate that Odisha is unlikely to receive excess monsoon rainfall during 2026-2030 even while the surrounding Bay of Bengal continues heating rapidly.

This creates a dangerous imbalance.

A hotter Bay of Bengal means:

• Stronger moisture loading in the atmosphere
• Increased cyclone energy potential
• Greater probability of extreme rainfall bursts

But if seasonal circulation patterns shift because of persistent high-pressure systems, Odisha could experience rainfall arriving in fewer but more intense episodes rather than evenly distributed monsoon rains.

In practical terms, farmers may face both flood and drought conditions within the same season.

Reservoir recharge may become inconsistent. Rain-fed agriculture could become riskier despite rising annual rainfall numbers at the national level.

Why Odisha Is Especially Vulnerable

Odisha sits at the intersection of multiple climate drivers:

• Bay of Bengal cyclonic systems
• Monsoon trough variability
• Eastern coastal humidity
• Riverine floodplains
• Heatwave-prone western districts

Now all these systems are being altered simultaneously.

WMO on India vs Global

The WMO also notes that global temperatures between 2026 and 2030 are likely to remain between 1.3°C and 1.9°C above pre-industrial levels, with a 91% probability that at least one year during this period will breach the 1.5°C warming threshold.

India may escape the most extreme temperature spikes compared to some northern hemisphere regions, but eastern India’s climate stress may increasingly emerge through humidity, unstable rainfall distribution and prolonged warm conditions rather than only absolute heat.

This is particularly critical for Odisha because the state has already witnessed:

• Frequent severe cyclones over the past decade
• Rising coastal erosion
• Expanding urban heat islands
• Irregular rainfall pockets
• Heatwave mortality in interior districts

The Decade That Could Redefine Eastern India’s Climate

The WMO itself cautions that these are probabilistic climate outlooks rather than deterministic forecasts.

But the broad direction is unmistakable.

Odisha is moving toward a future where:

• Summers become more humid and oppressive
• Winters turn noticeably warmer
• The Bay of Bengal stores more heat
• Atmospheric pressure patterns alter monsoon behaviour
• Rainfall becomes more uneven despite a wetter India overall

In climate terms, Odisha may no longer suffer from simple “less rain” or “more heat.” Instead, it could face a more dangerous phenomenon: climate imbalance.

And that imbalance may define the next decade for millions living along India’s eastern coast.

 Also Read: IMD Forecast / Monsoon to Play Waiting Game for Odisha, Heat Wave Set to Bounce Back in June| Exclusive Breaking!