August Weather in Sumy, Ukraine

Last updated: August 28, 2025

In Sumy, Ukraine, the average temperature in August is a pleasant 21°C (69°F). During this time, temperatures can range from a cool 6°C (44°F) to a warm 34°C (93°F). Expect about 28 mm (1.1 in) of precipitation over 5 days, contributing to an average humidity of 49%. Enjoy the balanced climate that August brings!

August Temperature in Sumy

In August in Sumy, the average temperature is 21°C (69°F). The maximum can reach 34°C (93°F), and the minimum can be as low as 6°C (44°F). This weather makes Sumy an ideal destination for travelers seeking a mix of warmth and cooler evenings.

August Weather in Sumy: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Sumy, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sumy, August typically has an average temperature of 21°C (69°F), with highs reaching up to 34°C (93°F) and lows dropping to around 6°C (44°F).

Data source: Temperature data for Sumy generated using information from the Copernicus Climate Change Service.

August Precipitation in Sumy

In Sumy in August, the precipitation amount is 28 mm (1.1 in) over a period of 5 days.

August Precipitation Trends in Sumy

The chart displays monthly precipitation patterns in Sumy, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Sumy, August typically receives around 28 mm (1.1 inches) of precipitation spread over approximately 5 days.

Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

August Humidity in Sumy

In Sumy in August, humidity is 49%. With an average temperature of 21°C (69°F), this humidity feels like a gentle embrace, making it comfortable for traveling and exploring the sights.

August Average Humidity in Sumy

This chart illustrates the average monthly humidity levels in Sumy, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Sumy is approximately 49%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Sumy

In Sumy in August, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Sumy.

Maximum UV Index Levels in Sumy for August

The chart shows the monthly maximum UV Index (UVI) for Sumy in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Sumy typically reaches 7, which falls under the high exposure category.

Data source: Sumy August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How August Weather in Sumy Compares to Other Months

Weather in Sumy varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Sumy, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Sumy, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (25°F)	43 mm (1.7 inches)	92%	low
February Weather	-3°C (26°F)	45 mm (1.8 inches)	93%	low
March Weather	1°C (35°F)	40 mm (1.6 inches)	90%	moderate
April Weather	9°C (48°F)	40 mm (1.6 inches)	79%	moderate
May Weather	15°C (59°F)	64 mm (2.5 inches)	66%	high
June Weather	20°C (68°F)	58 mm (2.3 inches)	65%	very high
July Weather	21°C (69°F)	84 mm (3.3 inches)	55%	very high
August Weather	21°C (69°F)	28 mm (1.1 inches)	49%	high
September Weather	15°C (60°F)	39 mm (1.5 inches)	69%	high
October Weather	9°C (49°F)	36 mm (1.4 inches)	84%	moderate
November Weather	2°C (36°F)	37 mm (1.4 inches)	92%	low
December Weather	-1°C (30°F)	69 mm (2.7 inches)	94%	low