Sliven
Sliven is a town in Bulgaria, 281 m above sea level. It has a population of about 77,832 (2025). The climate is classified as humid subtropical (Köppen Cfa), with rain spread through the year and no real dry season.
Best: Apr · Sep–Oct. Warmth, sunshine and dry days, month by month.
Sliven at a glance
The months with the highest weather score
Average high in August
Average low in January
63 mm of rain
40 mm of rain
Weather in Sliven
Now and the next ten days. The 14 and 30-day outlooks are one click away.
Partly cloudy · wind 4 km/h · humidity 80%
When to go to Sliven
Each month's weather score (warmth, sun, dry days) with its temperatures and rain.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Score | 35 | 37 | 47 | 76 | 72 | 63 | 59 | 63 | 83 | 82 | 52 | 32 |
| High | 6° | 8° | 12° | 18° | 23° | 27° | 30° | 30° | 25° | 19° | 13° | 7° |
| Low | -1° | 0° | 3° | 7° | 12° | 16° | 19° | 19° | 14° | 10° | 5° | 0° |
| Rain (mm) | 40 | 41 | 44 | 48 | 63 | 74 | 55 | 45 | 55 | 45 | 56 | 55 |
| Wet days | 8 | 7 | 8 | 9 | 12 | 12 | 9 | 6 | 7 | 7 | 7 | 9 |
What's on in Sliven
Concerts, football matches, the public holidays ahead and the town's festivals through the year.
Monuments and museums in Sliven
More museums: Къща музей "Д-р Миркович" · Къща-музей Добри Чинтулов · House-museum of the Old Sliven Popular Customs Old Sliwen · National Museum of the Textile Industry
Outdoors around Sliven
Hiking routes from the town, and what there is to do within 15 km: huts, viewpoints, climbing, camping, ski areas and dive sites.
Nature around Sliven
Wildlife in October
The birds and mammals of Bulgaria seen most this month, compared with the rest of their year.
The sky over Sliven
Earthquakes around Sliven
The last 30 days within 300 km, and the record since 1950.
Strongest nearby since 1950
Towns and villages around Sliven
Each with its own page: weather, climate and the best time to visit.
Sliven from above
Postal code
Getting to Sliven
Places near Sliven
Places with a climate like Sliven
Matched month by month on temperature, rain and sunshine.
