Sumy Weather in August
August in Sumy averages 26°C (79°F) during the day and 14°C (57°F) at night. The perfect conditions and moderate rainfall make it a solid month to visit.
Rainfall in Sumy in August
Rain is expected on roughly 11 days, totalling around 50 mm (2 in) for the month. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.
Temperature in Sumy in August
Weather in Sumy is at its perfect in August. Highs reach 26°C (79°F), while nights settle around 14°C (57°F). This month falls in the summer season. Conditions stay fairly consistent through the month, making it easier to plan what to wear. With lows of 14°C (57°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July, August and September typically offer the best weather for Sumy.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Ukraine, check out our Sumy's climate page.
Sumy Temperature in August
Min Temperature
14°C (57°F)
Max Temperature
26°C (79°F)
Chance of Rain
37%
Precipitation
50 mm (2 in)
Rainy days
11 days
Humidity
68%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Sumy typically drop from around 26°C (79°F) at the start of August to approximately 23°C (73°F) by the end. Nights are cool, with lows typically ranging from 12°C (54°F) to 15°C (59°F).
Average temperatures in August
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for Sumy in August
Browse day-by-day weather records for Sumy spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Sumy historical weather extremes in August
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Sumy.
- The hottest August day on record in Sumy reached 39°C (102°F) (August 5, 2010).
- On August 20, 1977, Sumy saw its coldest August day with temperatures maxing out at 13°C (55°F).
- The coldest night in August in Sumy was on August 29, 1980, with a minimum of 5°C (41°F).
Best Places in Ukraine in August
Find out more about the weather in Ukraine and which places have the best travel conditions in this month. See all of Ukraine in August →
perfect weather
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tolerable
unpleasant
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What to Wear in Sumy in August
Warm but pleasant conditions in Sumy in August. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Wet weather is likely, so pack waterproof gear for multiple rainy days.What To Do in Sumy in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Ukraine, check out our Sumy's climate page.
See the full Sumy climate overview or explore weather in Ukraine.
