The end of spring 2026 in Ukraine was marked by sharp weather contrasts that inevitably impacted the future harvest. Experts from the Ukrainian Hydrometeorological Center (UkrGMTC) analyzed data from the third decade of May and recorded significant deviations from the climate norm.

Cyclones and uneven precipitation

During the last days of May, cyclonic circulation of air masses prevailed over the country. The nature of precipitation was typically summer-like: local heavy thunderstorms of varying intensity were observed. However, the distribution of moisture across the territory turned out to be extremely uneven.

UkrGMTC specialists note that significantly less rain fell in the western half of Ukraine compared to the east. This led to uneven replenishment of productive soil moisture reserves. In some areas where there was a deficit of effective precipitation, moisture levels dropped to values unsatisfactory for this period.

Temperature fluctuations and risks for plants

Average daily air temperatures in the third decade of May showed significant fluctuations. Although the average temperature for the decade in most regions was close to the norm, local anomalies created serious problems for farmers.

In several districts, significant downpours accompanied by strong gusts of wind and hail were observed. Furthermore, the combination of low temperatures with excessive precipitation created a favorable environment for the spread of diseases and pests in the crops.

The lower temperature regime proved unfavorable for plant growth. In certain areas, agronomists recorded the yellowing of crops specifically due to the cold, which delayed their development.

Paradoxical ripening times

Despite the cool and sometimes cold weather, a different mechanism was at work in the southern regions of Ukraine. Winter wheat reached the milk ripeness stage 1–1.5 weeks earlier than usual. A similar situation occurred with spring barley: heading began 1–2 weeks earlier than the average multi-year indicators.

Thus, May 2026 demonstrated a complex and contradictory picture: on one hand, delayed development due to cold and diseases, and on the other, accelerated ripening of grains in the south. These factors will directly influence the final harvest volumes in orchards, gardens, and fields across the country.