Climate in Sliven (Sliven), Bulgaria

The graphs below show the monthly weather averages over the year.

Average day and night temperature

The mean minimum and maximum temperatures over the year.

Average monthly minimum and maximum temperature in Sliven, Bulgaria

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Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc.

Average monthly rainfall, snow, precipitation in Sliven, Bulgaria

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Monthly rainy days

The average number of days each month with rain, snow, hail etc.

Average monthly rainy days in Sliven, Bulgaria

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Weather Forecasts for Sliven

Thu   Mar 28
21°C | 10°C
SW 18 km/h
broken clouds and no rain

broken clouds and no rain

Fri   Mar 29
24°C | 10°C
NW 14 km/h
almost clear and no rain

almost clear and no rain

Sat   Mar 30
24°C | 11°C
S 11 km/h
partly cloudy and no rain

partly cloudy and no rain

The best time of year to visit Sliven in Bulgaria

During the months of May and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:

  • When is summer in Sliven?
    The hottest season / summer takes place in June, July, August and September.
  • Which is the warmest month in Sliven?
    August has an average maximum temperature of 29°C and is the warmest month of the year.
  • Which is the coldest month in Sliven?
    The coldest month is January with an average maximum temperature of 5°C.
  • Which is the wettest month in Sliven?
    May tops the wettest month list with 95 mm of rainfall.
  • Which is the driest month in Sliven?
    August is the driest month with 49 mm of precipitation.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.