Kenya's meteorological authority has warned farmers of below-average rainfall and moisture stress in June 2026, urging mulching, minimum tillage and fodder conservation as an 80% El Niño probability threatens Eastern Africa with floods and famine. Here is the full county-by-county breakdown.
Kenya's farmers are being urged to act quickly and decisively to protect their crops, livestock, and livelihoods as the Kenya Meteorological Service Authority (KMSA) releases a deeply cautionary June 2026 weather outlook that points to below-average rainfall, rising temperatures, and intensifying moisture stress across large swathes of the country. The advisory, published on June 5, 2026, is one of the most comprehensive and urgent weather-related communications directed at the agricultural sector in recent months — and it arrives at a time when the global climate system is showing increasingly alarming signs of disruption.
At its core, the KMSA's June outlook carries a message that every Kenyan farmer, from the smallholder cultivating a quarter-acre plot in the Central Highlands to the pastoralist managing livestock across the arid north, needs to hear clearly and act on immediately: the rains that many regions depend on during this period are expected to be insufficient, the temperatures will be warmer than usual, and the window for taking protective action is narrow. Farmers who wait for conditions to improve before adopting moisture-conservation and crop-protection measures risk finding themselves in a significantly worse position as the month progresses.
The advisory covers crop farming, livestock management, pest and disease surveillance, and weather monitoring behaviour — addressing the full spectrum of agricultural vulnerability that below-average rainfall and above-average temperatures create when they coincide during a critical growing period.
Rainfall Outlook for June 2026: Which Regions Face Below-Average Rainfall
The most consequential finding in the KMSA's June 2026 outlook is the widespread expectation of near-average to below-average rainfall across the majority of Kenya's key agricultural regions. The affected zones span virtually the entire interior and northern reaches of the country, encompassing some of Kenya's most densely farmed and agriculturally productive landscapes.
The Highlands East and West of the Rift Valley — which include some of the richest smallholder farming counties in the country — are among the regions expected to receive reduced rainfall this month. This means farmers in Kiambu, Murang'a, Nyeri, Kirinyaga, Embu, Tharaka Nithi, Meru, Laikipia, and Nyandarua are all operating under a forecast that demands careful and proactive water and soil management if standing crops are to survive the month without significant stress-related losses.
Across the Rift Valley itself, counties including Uasin Gishu, Trans Nzoia, Elgeyo-Marakwet, Nandi, Kericho and Bomet — the heartland of Kenya's maize belt and tea-growing regions — also face near-average to below-average rainfall expectations, a situation that has direct implications not just for subsistence farmers but for the commercial agricultural enterprises and commodity supply chains that depend on consistent production from these zones.
The Southeastern Lowlands and the Northeastern and Northwestern regions complete the picture of widespread rainfall deficiency. Counties including Mandera, Wajir and Garissa in the northeast, along with Turkana, Samburu and Marsabit in the north, and Kakamega, Vihiga, Bungoma and West Pokot in the west, all fall within zones characterised by diverse climatic conditions ranging from humid highlands to arid and semi-arid landscapes — all of which face varying degrees of moisture stress in June under the current outlook.
Northeastern Kenya has been specifically identified as the most vulnerable zone in the entire country, with KMSA warning that reduced rainfall in this region is pushing some areas toward serious moisture stress and threatening pasture recovery for the pastoral communities who depend on rangeland conditions for the survival of their herds.
The Bright Spots: Lake Victoria Basin and Coastal Regions Buck the Trend
Amid the broadly cautionary picture painted by the June 2026 outlook, two regions stand out as relative bright spots where farmers can expect more favourable rainfall conditions through the month. The Lake Victoria Basin — encompassing the counties of Kisumu, Siaya, Homa Bay, Migori, Kisii and Nyamira — is expected to receive near-average to above-average rainfall in June, providing the agricultural communities in this densely populated and highly productive zone with conditions that support continued planting and crop development activities.
Kenya's coastal regions represent the second zone of relatively favourable rainfall prospects, with near-average to above-average precipitation expected to support farming through the month. For coastal smallholders and commercial farmers growing a diverse range of crops — from cassava and sweet potatoes to fruits, vegetables and coconuts — the June outlook offers a degree of climatic reassurance that their counterparts in the interior and northern regions will not enjoy.
Farmers in these two favoured zones are nonetheless urged to remain vigilant and to continue monitoring KMSA updates regularly, as even in areas of above-average rainfall the broader national and global weather context — particularly the developing El Niño signal — means that conditions can shift rapidly and unpredictably.
The El Niño Warning: 80 Per Cent Probability and What It Means for Kenya
The June 2026 KMSA advisory does not exist in isolation from the broader global climate context — and that context, as communicated by the World Meteorological Organisation (WMO) in its June 2 weather and climate update, is deeply alarming. The WMO has confirmed that there is an 80 per cent probability of El Niño conditions developing between June and August 2026 across most parts of the world, including Eastern Africa.
El Niño — the periodic warming of sea surface temperatures in the central and eastern equatorial Pacific Ocean — is one of the most powerful drivers of global climate variability, with documented impacts on rainfall patterns, temperature extremes, and weather event intensity across virtually every region of the world. For Eastern Africa, El Niño episodes have historically been associated with a range of severe and potentially devastating outcomes: prolonged droughts in some areas, catastrophic flooding in others, disrupted planting seasons, crop failures, livestock deaths, and in the most severe cases, famine conditions in the most vulnerable zones.
The WMO's warning that the developing El Niño may lead to severe floods and famine in the coming months places Kenya's current below-average rainfall advisory in a broader and more urgent context. The moisture stress that farmers are being asked to manage in June may not be a brief or isolated episode — it may be the opening phase of a more prolonged and severe climate disruption whose full impact will only become clear over the months ahead.
For Kenya's agricultural sector, its food security planners, its humanitarian response agencies, and its millions of smallholder farmers, the 80 per cent El Niño probability figure is not a statistic to be absorbed and forgotten. It is an urgent call to prepare, adapt, and mobilise — at every level from the individual farm to the national government — before the window for proactive action closes.
What Every Kenyan Farmer Must Do Before the End of June
The convergence of below-average June rainfall, warmer-than-average temperatures, residual pest and disease pressure, and a rapidly developing El Niño signal creates an agricultural risk environment that demands immediate, informed, and sustained action from every farming household across the country. The KMSA's advice to regularly monitor weather updates and consult agricultural extension officers before making any major planting or financial decisions this month is not a bureaucratic caution — it is practical, potentially livelihood-saving guidance.
Farmers who mulch today, conserve fodder now, harvest available rainwater this week, and engage with their local extension officers before committing to additional plantings or livestock purchases are positioning themselves to navigate June's challenging conditions with significantly greater resilience than those who wait and hope for conditions to improve on their own. The weather data is clear. The expert guidance is available. The decision to act on it belongs to each and every farmer across this country.