Below we have prepared a table with a detailed weather forecast for Kyiv for September 2026 in detail by day. Please note that the table is based on data from previous years for a specific day, so it may differ slightly under the influence of various factors. You can find out the exact forecast only a day before the desired date on the website of the state meteorological service .
| Date | Daytime (°C) | Nighttime (°C) | Weather conditions / Precipitation |
| September 1 | +24 | +14 | Clear, sunny and very warm |
| September 2 | +23 | +13 | Sunny, partly cloudy |
| September 3 | +23 | +13 | Partly cloudy, no precipitation |
| September 4 | +22 | +12 | Partly cloudy |
| September 5 | +22 | +12 | Mostly sunny |
| September 6 | +21 | +12 | Partly cloudy |
| September 7 | +21 | +11 | Cloudy with clearings |
| September 8 | +20 | +11 | Possible short-term rain |
| September 9 | +19 | +11 | Short rain, windy |
| September 10 | +20 | +10 | Weather improving, sunny |
| September 11 | +20 | +11 | Partly cloudy, moderate heat |
| September 12 | +19 | +11 | Partly cloudy |
| September 13 | +19 | +10 | Clear, comfortable weather |
| September 14 | +18 | +10 | Sunny, light wind |
| September 15 | +18 | +9 | Partly cloudy |
| September 16 | +18 | +10 | Partly cloudy, dry |
| September 17 | +17 | +9 | Cloudy with clearings |
| September 18 | +17 | +9 | Light rain |
| September 19 | +16 | +9 | Cloudy, with occasional precipitation |
| September 20 | +17 | +8 | Clearing, cool wind |
| September 21 | +17 | +9 | Mild “Indian summer”, sunny |
| September 22 | +18 | +9 | Mostly sunny |
| September 23 | +17 | +8 | Partly cloudy |
| September 24 | +16 | +8 | Dry, cloudy with clearings |
| September 25 | +15 | +8 | Moderate cooling, cloudy |
| September 26 | +15 | +10 | Short-term autumn rain |
| September 27 | +14 | +9 | Cloudy, rain |
| September 28 | +14 | +9 | Cool, windy, no precipitation |
| September 29 | +16 | +10 | Partly cloudy |
| September 30 | +17 | +10 | Cloudy, noticeable autumn chill |
In general, the month promises to be warm as planned, without sharp abnormal colds or frosts. Rather, this month will still resemble a cool summer or autumn. However, towards the end of the month, it will become noticeably cooler at night. Just in case, keep an umbrella, because from the middle of the month, rare rains lasting several hours will begin.
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