---
title: "Autumn begins with rain and thunderstorms: UHMC forecaster says what weather awaits Ukraine on September 1–5"
description: "UHMC forecaster Ivan Semylit warned that the first days of autumn in Ukraine will be contrasting: a cold front will bring rain with thunderstorms, while heat of up to +30°C will be maintained in the south and southeast."
date: 2026-08-31T15:28:00.000Z
lang: en
url: https://xab.info/en/posts/weather-forecast-for-the-first-days-of-september-in-ukraine
tags: [ukraine-weather, autumn-forecast, rain, thunderstorms, september-2026]
publisher: "XAB.info"
---

# Autumn begins with rain and thunderstorms: UHMC forecaster says what weather awaits Ukraine on September 1–5

![People with umbrellas walking on a wet sidewalk in rainy weather in Ukraine](https://xab.info/media/2026/08/31/prognoz-pogody-na-pervye-dni-sentyabrya-v-ukraine/prognoz-pogody-na-pervye-dni-sentyabrya-v-ukraine-1.webp)

## 🎯 Key Points

- From September 1–3, a cold atmospheric front will move across Ukraine from west to east, bringing brief rain with thunderstorms.
- Temperatures will be contrasting: down to +9…+14°C at night, +23…+28°C during the day in most regions, and up to +25…+30°C in the south and southeast.
- On September 4–5 the weather will be changeable: on September 5, rain with thunderstorms is expected across the entire territory, except the south and southeast.
- No wind gusts are expected; wind speed is moderate — 5–12 m/s. There is no information yet on the onset of meteorological autumn.

The first days of the calendar autumn will not delight Ukrainians with stable sunny warmth: various atmospheric fronts will influence the weather, so in some areas rain with thunderstorms is unavoidable. This was stated in a blitz interview for RBC-Ukraine by Ivan Semylit, a forecaster at the Ukrainian Hydrometeorological Center. According to him, the overall synoptic situation across Ukraine will be determined by various baric formations, and in the coming days a cold atmospheric front will move across the country from west to east.

### Cold front moves from west to east

Thus, on Tuesday, September 1, brief rain with thunderstorms is expected in the western and northern regions, and during the daytime — also in Vinnytsia and Cherkasy regions. On Wednesday, September 2, local rain is possible at night only in the central regions and in the Sumy area; in all other regions the weather will remain without precipitation. On Thursday, September 3, a new atmospheric front will move across Ukraine, so local brief rain with thunderstorms is again expected — in the Prykarpattia and Zakarpattia regions, and during the daytime — in the northern, Vinnytsia and Cherkasy regions.

### Temperature contrast: from +9 at night to +30 during the day

Temperature values across Ukraine will be contrasting. After the cold atmospheric front passes, a colder air mass will spread toward the country; however, in the south and southeast, where there will be fewer clouds, the sun will continue to intensely heat the near-ground air layer. Nighttime minimums will drop from +13…+18°C tonight to +9…+14°C on the night of September 3. Daytime maximums on September 1 will be +23…+28°C in most regions, while in the south and southeast, where the weather will remain without precipitation, thermometers will rise to +25…+30°C.

### Weather on September 4–5 and wind characteristics

On Friday and Saturday, September 4–5, rather varied weather is expected. On September 4, no precipitation is forecast — only in the west and north of Ukraine, light rain is possible locally during the daytime. On September 5, brief rain will fall at night in the northern part, and during the daytime across the entire territory, except the south and southeast, locally with thunderstorms. Daytime maximums on September 4–5 will be +20…+25°C in most regions, +26…+30°C in the south and southeast, while on September 5 in the northeastern part of Ukraine they will not exceed +16…+21°C. Wind gusts, according to the forecaster, are not expected for now: on September 1 the wind will be predominantly southwest at 7–12 m/s, on Wednesday — westerly, on Thursday — northwesterly at a moderate speed of 5–10 m/s.

### Meteorological autumn not yet declared

There is currently no information on the onset of meteorological autumn — UHMC specialists continue to monitor the development of the situation and, as Ivan Semylit noted, the corresponding message will be published on the center's social media. Thus, the first week of September in Ukraine will be changeable: on the one hand, the cold front will bring rain and thunderstorms, while on the other — nearly summer readings of up to +30°C will be maintained in the southern and southeastern regions.

## 🔍 Fact-Check Verification

- [Autumn begins with rain: forecaster gives forecast for the first week of September](https://www.rbc.ua/ukr/news/osin-pochnetsya-doshchiv-sinoptik-dav-prognoz-1788188995.html) - Первичный источник: блиц-интервью синоптика УГМЦ Ивана Семилита с детализацией по дням 1–5 сентября (осадки, температуры, ветер).
- [Summer readings and rain with thunderstorms: weather forecast in Ukraine for 10 days](https://fakty.com.ua/ru/ukraine/20260829-litni-pokazniki-ta-doshhi-z-grozami-prognoz-pogodi-v-ukrayini-na-10-dniv/) - Контекстный источник, согласующийся с общей картиной: летние показатели и дожди с грозами в начале сентября.
- [Warming to +23 in Ukraine: forecaster names the date of the weather change. Map](https://www.obozrevatel.com/novosti-obschestvo/v-ukraine-potepleet-do-23-sinoptik-nazval-datu-smenyi-pogodyi-karta.htm) - Контекст: подтверждает дневные максимумы порядка +23°С и смену погоды в начале сентября.
- [Warming to +9 in Ukraine, but there is a "nuance": forecaster says what to expect](https://www.obozrevatel.com/novosti-obschestvo/v-ukraine-potepleet-do-9-no-est-nyuans-sinoptik-rasskazal-chego-zhdat.htm) - Контекст: подтверждает дневные максимумы порядка +23°С и смену погоды в начале сентября.

## ❓ FAQ

### Q: When are rain and thunderstorms expected in early September?
**A:** Brief rain with thunderstorms is expected on September 1 in the western, northern, Vinnytsia and Cherkasy regions, and on September 3 — in the Prykarpattia and Zakarpattia regions and in the northern, Vinnytsia and Cherkasy regions. On September 5, rain, locally with thunderstorms, is possible across the entire territory, except the south and southeast.

### Q: What temperatures are expected from September 1–5?
**A:** Nighttime minimums will drop to +9…+14°C, daytime maximums in most regions will be +20…+28°C, and in the south and southeast — up to +25…+30°C. On September 5, daytime maximums in the northeastern part will not exceed +16…+21°C.

### Q: Are wind gusts expected, and has meteorological autumn been declared?
**A:** No wind gusts are expected for now; wind speed is moderate — 5–12 m/s. There is currently no information on the onset of meteorological autumn; the UHMC will continue to monitor the situation.