Climate of Sliven
Sliven has a oceanic climate. There is rainfall during all months of the year. The average annual temperature for Sliven is 17° degrees and there is about 366 mm of rain in a year. It is dry for 193 days a year with an average humidity of 71% and an UV-index of 4.
Climate averages for the whole year
- Day: the average daily temperature during the day is between 4°C and 30°C
- Night:the average nighttime temperature is between -2°C and 17°C
- Rain: it rains 135 days and there is a total of approximately 368 mm rainfall
- Snow: it snows an average of 22 days per year
- Sun hours: throughout the year there are 3132 sun hours
Maximum temperature: | between 4°C and 30°C |
Warmest month: | 30°C in August |
Coldest month: | 4°C in January |
Night temperature: | between -2°C and 17°C |
Dry days: | 208 days |
Days with rain: | 135 days |
Days with snow: | 22 days |
Total rain sum: | 368 mm |
Hours of sunshine: | 3132 hours |
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Temperature graph
This graph shows the average maximum temperature (red) and minimum temperature (blue) for Sliven.
Precipitation graph
This graph shows the average amount of rainfall per month for Sliven.
Climate table of Sliven
In this climate table you can see at a glance what the average weather per month is for Sliven. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Sliven might be like in a given month.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Day temp. (°C) | 4 | 7 | 11 | 17 | 22 | 26 | 29 | 30 | 25 | 17 | 12 | 6 |
Night temp. (°C) | -2 | 0 | 3 | 6 | 10 | 14 | 17 | 17 | 14 | 9 | 5 | 0 |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
Precipitation (mm) | 36 | 31 | 30 | 23 | 42 | 40 | 29 | 18 | 22 | 36 | 30 | 31 |
Days with rain | 9 | 8 | 13 | 14 | 17 | 15 | 14 | 8 | 9 | 10 | 8 | 10 |
Days with snow | 7 | 6 | 3 | - | - | - | - | - | - | - | 1 | 5 |
Dry days | 15 | 14 | 15 | 16 | 14 | 15 | 17 | 23 | 21 | 21 | 21 | 16 |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
Sun hours per day | 5 | 5 | 7 | 10 | 11 | 12 | 12 | 12 | 10 | 6 | 6 | 6 |
Wind force (Bft) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
UV-index | 2 | 2 | 3 | 4 | 5 | 6 | 6 | 6 | 4 | 3 | 3 | 2 |
Best time to visit Sliven
The best time to visit Sliven in Bulgaria is from May through September. In this period you have a warm temperature and almost no precipitation. The highest average temperature in Sliven is 30°C in August and the lowest is 4°C in January.
Climate of Sliven by month
What is the average climate in a given month for Sliven? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.
Sliven weather experiences
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