The end of the first autumn month of 2026 in Ukraine will be marked by a contrasting synoptic situation. According to the Ukrainian Hydrometeorological Center, on September 30 and the first days of October, the weather will be mostly dry and autumn-warm during daylight hours, but a number of regions will already feel the breath of cold weather in the form of night frosts and morning fogs.
Temperature Features and Frosts
Throughout September 30, the average air temperature in Ukraine at night is expected to range from +3 to +8 degrees, although the situation in the highlands and certain regions will be harsher. In the Carpathians, temperatures are projected to drop to 0 degrees, and regional hydrometeorological centers warn of night and morning frosts down to -5 degrees in some areas. During the day, the air will warm up to a comfortable +15…+20 degrees, maintaining pleasant autumn warmth .
Forecast for Kyiv and the Capital Region
In Kyiv and the Kyiv region, variable cloudiness without precipitation is expected on September 30 and at the beginning of October. The capital region will avoid sharp temperature fluctuations: at night, thermometer readings in the city will stay around +8 degrees, and during the day, indicators will remain at a stable and comfortable level. UkrHMC forecasters note that similar stable weather without significant precipitation will persist in the first days of October .
Synoptic Situation for October 1-2
Analyzing the forecast for the next three days, experts note that no significant changes will occur in the synoptic picture of Ukraine. However, on October 1, short-term rains will pass in some western regions, and at night and in the morning, drivers and pedestrians should be careful due to the likelihood of dense fogs. Meteorologists remind us that current processes are associated with the general seasonal cooling, which has previously led to the first snow in the Carpathians.
Contradictory Data
While official UkrHMC reports record a moderate night temperature drop to +3…+8 degrees with local soil frosts down to -5 degrees, some independent meteorological resources and alternative forecasts warn of a sharper invasion of arctic masses from the northwest. According to individual forecasters, a wave of cooling could cover a much larger territory of the country as early as the first days of October, whereas state meteorologists predict a more restrained character of precipitation and stable daytime readings up to +20 degrees in most regions.
