August in the Rivne region will begin with rain and hail throughout the region, and then this time will change to a harmonious transition from summer heat to the first cool winds of autumn. The climate of Polissya is traditionally characterized by moderate temperatures and sufficient humidity, so the last month of summer 2026 in Rivne and the region will pass without exhausting heat, but on the contrary with rain, periodic hail and thunderstorms, but at the same time with a large number of sunny days.
The average daytime air temperature during the month in the Rivne region is expected to be within +22°C…+26°C , and nighttime temperatures will gradually decrease from +15°C at the beginning of August to a cool +9°C…+10°C at the end.
Read also: Weather forecast in Vinnytsia for August 2026: Daily overview and meteorological features
Detailed weather forecast in Rivne by day (August 2026)
In this table below we have provided an approximate daily forecast of meteorological conditions in Rivne and the region, compiled on the basis of long-term climate observations and meteorological models for Western Polissya with recorded data from year to year. The exact forecast for a specific date should be viewed the day before on the website of the Dermeteorological Service .
| Date | Daytime temperature | Nighttime temperature | Weather conditions |
| August 1 | +26°C | +15°C | Mostly sunny |
| August 2 | +27°C | +16°C | Clear, warm |
| August 3 | +28°C | +16°C | Partly cloudy |
| August 4 | +26°C | +15°C | Short-term rain |
| August 5 | +25°C | +14°C | Cloudy with clearings |
| August 6 | +26°C | +15°C | Mostly sunny |
| August 7 | +27°C | +16°C | Sunny, no precipitation |
| August 8 | +28°C | +16°C | Hot, clear |
| August 9 | +27°C | +15°C | Partly cloudy |
| August 10 | +25°C | +14°C | Short-term thunderstorm |
| August 11 | +25°C | +14°C | Cloudy with clearings |
| August 12 | +24°C | +13°C | Partly cloudy |
| August 13 | +25°C | +14°C | Mostly sunny |
| August 14 | +26°C | +14°C | Clear |
| August 15 | +24°C | +13°C | Increasing cloudiness |
| August 16 | +22°C | +12°C | Rain, cool |
| August 17 | +21°C | +11°C | Cloudy, possible precipitation |
| August 18 | +23°C | +12°C | Clarification, fresh |
| August 19 | +24°C | +13°C | Partly cloudy |
| August 20 | +23°C | +12°C | Cloudy with clearings |
| August 21 | +22°C | +11°C | Mostly sunny |
| August 22 | +23°C | +12°C | Sunny |
| August 23 | +24°C | +12°C | Clear, comfortable |
| August 24 | +24°C | +12°C | Cloudless, warm |
| August 25 | +23°C | +11°C | Partly cloudy |
| August 26 | +22°C | +10°C | Cloudy with clearings |
| August 27 | +21°C | +10°C | Sunny, fresh wind |
| August 28 | +22°C | +10°C | Mostly sunny |
| August 29 | +22°C | +10°C | Clear |
| August 30 | +21°C | +9°C | Partly cloudy, cool night |
| August 31 | +20°C | +9°C | Sunny, autumn freshness |
Read also: Weather forecast in Lviv for August 2026: Detailed overview by day
Tips for residents and guests of the city
To ensure that your August days in Rivne leave only pleasant impressions, use these simple recommendations:
- Choose the right wardrobe for hot and rainy days: Light summer clothes are perfect for the first two decades, but after August 20, be sure to keep a light jacket, cardigan, or hoodie on hand for evening walks so you don’t get cold and chilly at night.
- Keep an umbrella handy: Since the Polissya region is prone to sudden summer showers with hail, which can fall frequently this month, it is worth having an umbrella with you.
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