Best Time to Visit Sliven, Sliven, Bulgaria
Sliven is at its sunniest and driest in August–September.
The best time to visit Sliven for sunny, dry weather is August–September — 2 months of the year fit our sunny profiles at this specific location. The drier stretch runs through July–October and January–March; the wetter half falls in April–June and November–December. At the city itself, monthly average temperatures range from 1.2°C / 34.2°F in January to 22.2°C / 72°F in July, with rainfall from 41 mm / 1.6 in (January) to 68 mm / 2.7 in (May). These are point-value climate normals sampled at Sliven, Sliven, Bulgaria's coordinates — usually more actionable for travellers than the country-wide average. Sliven's climate is broadly seasonal. The full month-by-month table below lets you match your travel window against our five weather profiles.
Recommended months
| Month | Temp | Rain | Feels like |
|---|---|---|---|
| August | 22°C71.6°F | 44 mm1.7″ | Sunny & Mild |
| September | 17.8°C64°F | 41 mm1.6″ | Sunny & Mild |
Frequently asked questions
When is the best time to visit Sliven?
The best time to visit Sliven for sunny, dry weather is August, September. At the city itself, the warmest month is July averaging 22.2°C / 72°F, and the driest is January with about 41 mm / 1.6 in of rain. These are point-value climate normals sampled at Sliven's coordinates.
When is the rainy season in Sliven?
The rainy season at Sliven, Sliven runs through April–June and November–December, when monthly rainfall exceeds the annual median of about 51 mm / 2 in. The wettest single month is May (68 mm / 2.7 in).
What is the driest month in Sliven?
The driest month in Sliven is January, averaging about 41 mm / 1.6 in of rainfall. Temperature that month averages 1.2°C / 34.2°F.
What months should I avoid visiting Sliven?
The least comfortable months for travel to Sliven — based on point-value climate at the city — are January, February, March, April, May, June, December. These are the wettest or coolest months at this location. Rainfall peaks at 68 mm / 2.7 in in May, and the coldest month averages 1.2°C / 34.2°F.
Is Sliven climate different from Bulgaria overall?
Yes, usually. Our Sliven figures are point-value climate normals sampled at the city itself, while our Bulgaria figures are area-weighted averages across the whole country. The two can diverge substantially in geographically diverse or elevation-varied countries. The month-by-month table below reflects Sliven specifically — usually the more actionable data for a traveller planning to spend time in the city.