The World Meteorological Organization’s warning that the prevailing El Nino could intensify into a very strong event and persist through February 2027 has immediate implications for how India understands rainfall, heat and seasonal risk. The warning, reported alongside a recent India Meteorological Department assessment, comes after a deficient August, record August heat and growing concern over warmer winter conditions.
The event is not only a climate story. It is also a test of the systems that connect weather to agriculture, water availability, public health, infrastructure and urban resilience. The evidence available in the reported assessments does not establish the scale of future disruption. It does, however, show that India is entering a period in which weaker rainfall and higher temperatures may overlap with existing seasonal vulnerabilities.
The WMO has said El Nino conditions over the equatorial Pacific are most likely to intensify in the coming months and continue through February 2027. WMO Secretary-General Celeste Saulo described the potential consequences as significant for rainfall and temperature patterns, with associated risks of drought, floods and extreme heat. The organisation’s warning places India’s recent weather experience within a broader global climate pattern.
India’s immediate concern is the monsoon. The IMD recorded a 16 per cent rainfall deficit across the country in August and identified the month as India’s hottest August since 1901. The reported assessment linked the prevailing El Nino conditions to both developments. For September, the IMD forecast rainfall below 91 per cent of the long-period average. The long-period average for September is approximately 167.9 millimetres, based on rainfall data from 1971 to 2020.
These figures describe more than a single month of weak rainfall. They point to the way a seasonal climate signal can affect several parts of the built and economic environment at once. Lower rainfall can intensify concerns about water availability and agricultural output, while unusually high temperatures can increase heat exposure. The same period can also produce uneven outcomes, with drought conditions in some areas and intense rainfall or flooding in others. The WMO warning specifically identifies all three risks: drought, floods and extreme heat.
What the El Nino evidence shows
El Nino is one phase of the El Nino-Southern Oscillation, or ENSO, a climate phenomenon involving changes in sea temperatures in the central and eastern tropical Pacific and related atmospheric fluctuations. La Nina is generally associated with a cooling effect, while El Nino is associated with warming. In India, El Nino conditions typically lead to reduced rainfall.
The reported evidence suggests that the current concern is not based on the Pacific signal alone. It is the combination of a forecast continuation, recent rainfall deficiency and observed heat that makes the period important. The WMO expects the conditions to intensify, while the IMD has already recorded a weak August monsoon and exceptional heat. Together, these developments create a basis for heightened risk assessment without establishing a precise forecast for every region or city.
The distinction matters. A national rainfall figure cannot describe how every district, watershed or urban area will be affected. The supplied material does not provide city-level rainfall data, reservoir levels, groundwater measurements, flood maps or municipal preparedness assessments. It therefore cannot establish which cities face the greatest immediate exposure. What it does show is that the national climate signal is moving in a direction that can complicate planning across multiple seasons.
The reported implications extend beyond the monsoon calendar. If El Nino persists into February 2027, its influence may overlap with winter conditions. The IMD has yet to issue a post-monsoon seasonal forecast, but the report notes that an intensifying El Nino could contribute to higher winter temperatures. India is already experiencing warmer winters, according to the material cited in the report, creating another layer of uncertainty for agriculture and climate-sensitive activities.
The winter connection and agricultural stress
A study by Climate Trends, a Delhi-based climate think tank, found that winters in northern India are shortening, with warming during February and March becoming more common. The study identified February as the fastest-warming month, with temperatures rising by 0.69 degrees Celsius per decade. It reported increases of 0.58 degrees Celsius per decade in March and 0.66 degrees Celsius per decade in April.
The significance of these figures lies in their timing. The reported warming coincides with the reproductive and grain-filling stages of wheat, increasing the risk of terminal heat stress in the major wheat-growing regions. The study said these temperature changes are already affecting production. The source material does not provide a national production estimate or quantify the expected effect of a prolonged El Nino on wheat output, so the relationship should be treated as a documented risk rather than a forecast of a specific loss.
This seasonal overlap complicates the conventional division between monsoon preparedness and winter planning. A deficient monsoon can raise concerns about water and crops before a warmer winter creates additional stress during the wheat-growing cycle. The evidence does not show that one event will automatically produce the other, but it does establish that India’s climate risks are increasingly connected across seasons.
For cities, the implications are indirect but substantial. Urban areas depend on regional water systems, agricultural supply chains and transport networks that extend beyond municipal boundaries. The supplied material does not quantify these dependencies or document specific urban disruptions. It does, however, identify the underlying hazards—heat, drought, floods and changing seasonal rainfall—that shape the conditions in which urban infrastructure and communities operate.
A planning problem without a single forecast
The central policy challenge is that El Nino is a large-scale climate signal, while public decisions are made through local institutions and sector-specific systems. The WMO provides the international assessment, and the IMD provides India’s rainfall and temperature forecasts. The report does not set out a detailed response framework, funding arrangement or division of responsibilities between national, state and municipal authorities.
That absence of detail is important when interpreting the warning. A climate outlook is not the same as an impact forecast. It can indicate a higher likelihood of certain conditions, but it does not by itself determine how rainfall will be distributed, where flooding will occur or which communities will experience the greatest heat exposure. Those questions require more localised data and subsequent forecasts, none of which are provided in the supplied material.
The reported figures nevertheless establish several planning signals. August rainfall was 16 per cent below the national average. August was the hottest on record since 1901, according to the IMD assessment cited. September rainfall was forecast below 91 per cent of its long-period average. The WMO projected that El Nino could persist through February 2027. These are not interchangeable measurements, but together they describe a period in which water, heat and seasonal uncertainty may have to be considered simultaneously.
The urban dimension is therefore less about predicting a single disaster than understanding cumulative exposure. Heat can coincide with reduced rainfall; reduced rainfall can affect water conditions; and intense rainfall can still produce flooding even during a deficient season. The WMO’s simultaneous reference to drought and floods captures this apparent contradiction. A national or seasonal deficit does not rule out damaging local rainfall events.
What remains uncertain
Several important questions remain unanswered in the reported material. The WMO warning does not establish the geographic distribution of future rainfall across India. The IMD’s September forecast does not provide a complete post-monsoon outlook. There is no city-level assessment of heat exposure, water supply, drainage capacity or flood risk. The report also does not identify specific government measures, infrastructure projects or municipal interventions that are being activated in response.
Those gaps do not reduce the significance of the warning. They define the next stage of scrutiny. The value of the forecast will depend on how it is translated into more detailed regional and seasonal assessments, and how those assessments are connected to decisions affecting water, agriculture, heat and flood risk. The evidence currently confirms a potentially prolonged El Nino, a deficient and unusually hot August, below-average September rainfall expectations and a documented pattern of warming winters in northern India.
For Urban Acres, the larger question is how India’s cities and institutions prepare for climate conditions that do not remain within one season or one administrative boundary. The supplied evidence does not yet permit a city-by-city conclusion. It does show why the continuation of El Nino through February 2027 deserves sustained attention: rainfall uncertainty, extreme heat and warmer winters may overlap, placing greater importance on the next official forecasts and on the public systems responsible for responding to them.
