When to go · Sliven
Sliven, month by month
The best months for Sliven: May, Jun, Jul, Aug, Sep. Months to avoid: Jan, Feb.
Month by month
- JanuaryAvoidListed as a month to avoid: Jan–Feb (cold, occasional snow).5 °C (41 °F) / -2 °C (28 °F), 6 rain days41 °F (5 °C) / 28 °F (-2 °C), 6 rain daysCrowds: Low
- FebruaryAvoidListed as a month to avoid: Jan–Feb (cold, occasional snow).7 °C (45 °F) / -1 °C (30 °F), 6 rain days45 °F (7 °C) / 30 °F (-1 °C), 6 rain daysCrowds: Medium
- MarchMixedOutside the best window (May–Sep). Across Bulgaria: Baba Marta on 1 March — red-and-white martenitsi everywhere; Liberation Day on the 3rd.12 °C (54 °F) / 2 °C (36 °F), 7 rain days54 °F (12 °C) / 36 °F (2 °C), 7 rain daysCrowds: Low
- AprilGoodOutside the best window (May–Sep). Across Bulgaria: Spring in Plovdiv and Sofia; Orthodox Easter often falls here. Mountains still snowy.18 °C (64 °F) / 7 °C (45 °F), 8 rain days64 °F (18 °C) / 45 °F (7 °C), 8 rain daysCrowds: Low · 1 festival or holiday
- MayGreatInside Sliven's best window: May–Sep.23 °C (73 °F) / 12 °C (54 °F), 9 rain days73 °F (23 °C) / 54 °F (12 °C), 9 rain daysCrowds: Medium · 1 festival or holiday
- JuneGreatInside Sliven's best window: May–Sep.27 °C (81 °F) / 16 °C (61 °F), 8 rain days81 °F (27 °C) / 61 °F (16 °C), 8 rain daysCrowds: Medium
- JulyGreatInside Sliven's best window: May–Sep.30 °C (86 °F) / 18 °C (64 °F), 6 rain days86 °F (30 °C) / 64 °F (18 °C), 6 rain daysCrowds: High
- AugustGreatInside Sliven's best window: May–Sep.30 °C (86 °F) / 18 °C (64 °F), 5 rain days86 °F (30 °C) / 64 °F (18 °C), 5 rain daysCrowds: High
- SeptemberGreatInside Sliven's best window: May–Sep.25 °C (77 °F) / 14 °C (57 °F), 5 rain days77 °F (25 °C) / 57 °F (14 °C), 5 rain daysCrowds: Medium
- OctoberGoodOutside the best window (May–Sep). Across Bulgaria: Autumn colour in the Rhodopes and Balkan range; resorts close mid-month.19 °C (66 °F) / 9 °C (48 °F), 6 rain days66 °F (19 °C) / 48 °F (9 °C), 6 rain daysCrowds: Low
- NovemberMixedOutside the best window (May–Sep). Across Bulgaria: Grey and damp; good for Sofia museums and thermal baths.12 °C (54 °F) / 4 °C (39 °F), 7 rain days54 °F (12 °C) / 39 °F (4 °C), 7 rain daysCrowds: Low
- DecemberMixedOutside the best window (May–Sep). Across Bulgaria: Christmas markets in Sofia and Plovdiv; ski season opens mid-month.7 °C (45 °F) / -1 °C (30 °F), 7 rain days45 °F (7 °C) / 30 °F (-1 °C), 7 rain daysCrowds: Medium · 1 festival or holiday
Compare two months
Weather, crowds and prices for any two months in Sliven, side by side.
Verdict
May: Great
Jun: Great
Daytime high
May: 23 °C (73 °F)73 °F (23 °C)
Jun: 27 °C (81 °F)81 °F (27 °C)
Night low
May: 12 °C (54 °F)54 °F (12 °C)
Jun: 16 °C (61 °F)61 °F (16 °C)
Rain days
May: 9
Jun: 8 (better)
Crowds
May: Medium
Jun: Medium
Prices
May: Medium
Jun: Medium
Festivals listed
May: 1
Jun: 0
May: Inside Sliven's best window: May–Sep.
June: Inside Sliven's best window: May–Sep.
Sliven: figures are long-term averages from this guide, not a forecast.