On September 4, 2026, the weather in Ukraine is expected to be uneven — both in terms of precipitation and temperature. According to the Ukrainian Hydrometeorological Center, a field of slightly elevated pressure will prevail over most of the country during the day, which will result in predominantly dry weather. Across Ukraine as a whole, variable cloud cover is expected, and the amount of precipitation will be noticeably lower than in the previous days, while daytime temperatures will be a little warmer.

Overall picture: a field of elevated pressure

According to the forecast from experts at the Ukrainian Hydrometeorological Center, the field of slightly elevated pressure will determine rain-free weather in most regions of Ukraine on September 4. This means that for most regions, Friday will pass dry and without active atmospheric fronts, with variable cloud cover becoming the dominant scenario. This regime is typical for the transitional period at the end of summer, when cyclonic activity temporarily weakens.

Where the rain will fall

The exception is the northwestern part of the country. On Friday afternoon, an atmospheric front moving from the west will bring light rain, locally — in the northwestern regions, including Kyiv Oblast. Thus, it is precisely in this sector that local, brief precipitation is possible, while rain is unlikely across the rest of the territory.

Wind and temperature background

The wind on September 4 will be predominantly southwesterly, at 5–10 m/s. The exception is the Carpathians, where noticeable gusts of up to 15–20 m/s are likely during the day. The temperature situation is uneven: a cool air mass will still be located over most of Ukraine's territory, while the south and southeast of the country are expected to be noticeably warmer — according to RBC-Ukraine, warming up to +30 is possible there. It is precisely this combination of cool air over most regions and warm air in the south and southeast that creates the "variability" in temperature readings across the country.

Forecast for Kyiv and Kyiv Oblast

Across the city of Kyiv and Kyiv Oblast, the weather on September 4 is also expected with variable cloud cover. Light rain is possible locally in the region as part of the atmospheric front moving from the west, so residents and visitors to the capital should take into account the probability of local precipitation during the daytime hours.

Contradictory data

Here it is important to honestly point out the discrepancy in how the picture is presented. On the one hand, a number of outlets characterize the end of summer and the beginning of September as a period when the "crazy heat has not ended," emphasizing the persistence of abnormally high temperatures. On the other hand, the Ukrainian Hydrometeorological Center itself, in its forecast for September 4, emphasizes that a cool air mass is still located over most of the territory, while noticeable warmth is expected only in the south and southeast. In other words, the versions do not contradict each other in essence, but differ in emphasis: if one relies on the general September trend, the picture looks warmer, whereas the point forecast for Friday indicates coolness in most regions and local warming in the south. Readers should rely on the regional forecast rather than on averaged "country-wide" estimates.

Context: September and the state of the rivers

The forecast for September 4 fits into the broader context of September, when the weather in Ukraine is traditionally changeable. Earlier, RBC-Ukraine also reported that the country's rivers are drying up dramatically, and in August the water level in a number of water bodies "dropped" to drought and monthly minimums. This is a reminder that the dry, low-precipitation weather expected on Friday is part of a longer-term trend that is important to consider when planning outdoor activities and water use.