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Sinemorets in May sees pleasant daytime temperatures of 19°C (66°F) and nighttime lows of 14°C (57°F). Moderate rainfall is typical, with around 37 mm (1.5 in) for the month.
If you prefer dry days with pleasant temperatures, June, July, August and September typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Pick a month to see the average temperature, rainfall and sunshine in Sinemorets - and find the best time to visit.
49-year average (1976-2025)
Based on our historical records, temperatures in Sinemorets typically rise from around 19°C (66°F) at the start of May to approximately 23°C (73°F) by the end. Nights are cool, with lows typically ranging from 9°C (48°F) to 14°C (57°F).
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Sinemorets spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Based on 29 years of weather observations in Sinemorets between 1997 and 2026, these are the recorded extremes.
Find out more about the weather in Bulgaria and which places have the best travel conditions in this month. See all of Bulgaria in May →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
For Sinemorets in May, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Some rain is possible, so pack something to handle light showers. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity
See the full Sinemorets climate overview or explore weather in Bulgaria.
Where to go in May - average daytime high across popular destinations.
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