Sumy, Ukraine Weather

  1. Sumy, Ukraine Weather
  2. Current conditions
  3. Weather forecast
  4. Averages and extremes
  5. Yesterday's Data
  6. Temperature and possibility of rain in Sumy over the next 12 hours
  7. Temperature and possibility of rain in Sumy in the coming days
  8. Rainfall in Sumy in the coming days
  9. Sumy Weather Summary
  10. Weather averages by month
  11. Sumy's weather
  12. Frequently asked questions
  13. Comments
Sumy, Weather
(Photo by Tina Hartung on Unsplash)

Current conditions

Updated:
-13°C
8.6°F
°C °F

Condition: Clear Sky

Pressure: 1,021 hPa

Feel like: -18 °C

Temperature: -13°C

Cloud: 5%

Humidity: 78%

Wind: ESE - 13 km/h

Visibility: 24.14 km

Weather forecast

Fri
23 Jan
-7°C / -4°C
Snow Fall Slight
Sat
24 Jan
-7°C / -4°C
Snow Fall Slight
Sun
25 Jan
-10°C / -4°C
Overcast
Hourly forecast today:
00:00 AM
-16° / -13°
-16° / -13°
Clear Sky
78% 32 km/h
01:00 AM
-16° / -13°
-16° / -13°
Clear Sky
78% 31 km/h
02:00 AM
-16° / -13°
-16° / -13°
Clear Sky
79% 30 km/h
03:00 AM
-16° / -13°
-16° / -13°
Clear Sky
79% 29 km/h
04:00 AM
-16° / -13°
-16° / -13°
Clear Sky
78% 29 km/h
05:00 AM
-16° / -13°
-16° / -13°
Clear Sky
77% 29 km/h
06:00 AM
-16° / -13°
-16° / -13°
Clear Sky
76% 29 km/h
07:00 AM
-15° / -11°
-15° / -11°
Clear Sky
74% 28 km/h
08:00 AM
-14° / -10°
-14° / -10°
Clear Sky
72% 26 km/h
09:00 AM
-13° / -8°
-13° / -8°
Clear Sky
71% 24 km/h
10:00 AM
-12° / -8°
-12° / -8°
Clear Sky
72% 22 km/h

30 Day Averages and Extremes

  • Average high -3.83°C
  • Average low -8.63°C
  • Hottest day 3°C (07 January 2026)
  • Coldest day -15°C (14 January 2026)
  • Average humidity 84.27%
  • Days with precipitation 27 days
  • Highest precipitation 78 mm (06 January 2026)

Yesterday's Data

  • Max: -7°C
  • Min: -13°C
  • Total Precipitation: 0 mm

Temperature and possibility of rain in Sumy over the next 12 hours

Temperature and possibility of rain in Sumy in the coming days

Rainfall in Sumy in the coming days

Sumy Climate Summary

Sumy features a Humid continental, no dry season, warm summer (Köppen classification: Dfb), with an average annual temperature of 9.61ºC (49.3ºF), which is about -1.77% lower than the national average for Ukraine. Annually, the city experiences approximately 56.49 millimeters (2.22 inches) of rainfall, spread across 119.27 rainy days, accounting for 32.68% of the year.

Longitude 50.9077
Latitude 34.7981
Yearly high temperature 12.14ºC (53.85ºF)
Yearly low temperature 4.04ºC (39.27ºF)
Hottest month August 26.41ºC (79.54ºF)
Coldest month January -8.67ºC (16.39ºF)
Yearly precip 56.49mm (2.22in)
Days with rainfall 119.27 days (32.68%)
Driest month August (62.65%)
Wettest month May (71.43%)

Weather averages by month

Month High / Low (°C) Rain
January -3.88° / -8.67° 11.36 days
February -1.87° / -7.14° 9.64 days
March 3.72° / -2.7° 11.0 days
April 13.62° / 4.28° 9.36 days
May 21.34° / 10.37° 14.27 days
June 24.66° / 13.35° 12.64 days
July 26.48° / 15.14° 12.36 days
August 26.41° / 14.56° 6.27 days
September 19.9° / 9.87° 7.0 days
October 11.6° / 4.28° 6.82 days
November 4.32° / -0.17° 7.73 days
December -0.66° / -4.68° 10.82 days

Sumy's weather

Frequently asked questions

1. What is the hottest month in Sumy?

August has the highest average monthly temperature (daily mean of 26.41ºC) and January are the coolest (daily mean of -8.67ºC).

2. What should I wear in Sumy today?

For today's frigid weather in Sumy, with low temperatures at -5ºC (23.0ºF), it's crucial to dress in warm, insulated layers. You should consider wearing:
- Beanie or thermal hat
- Insulated winter coat
- Waterproof and insulated boots
- Thermal base layers (top and bottom)

Temperature

Early
-16°C / -13°C
Morning
-13°C / -8°C
Afternoon
-11°C / -9°C
Evening
-13°C / -9°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 0
  • CO 0
  • NH3 0
  • NO2 0
  • O3 0
  • PM10 0
  • PM25 0
  • SO2 0
  • CH4 0

Sunrise / Sunset

05:29
14:15