Primorsko Weather in September
Primorsko in September averages 23°C (73°F) during the day and 19°C (66°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
Rainfall in Primorsko in September
Records from the past 30 years suggest around 5 days of rain, with 72 mm (2.8 in) average for the month. Rainfall tends to arrive in short, intense showers this month. Rain days are few, but the showers can be surprisingly heavy.
Temperature in Primorsko in September
September is a good time to be in Primorsko. Days are excellent, reaching 23°C (73°F), with nights around 19°C (66°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. At 19°C (66°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Primorsko in September
The month enjoys around 244 hours of sunshine, creating mostly sunny days with good weather conditions.Our weather planner can help you find worldwide destinations with pleasant weather during this period. June, July, August and September typically offer the best weather for Primorsko.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Bulgaria, check out our Primorsko's climate page.
Primorsko Temperature in September
Min Temperature
19°C (66°F)
Max Temperature
23°C (73°F)
Chance of Rain
16%
Precipitation
72 mm (2.8 in)
Rainy days
5 days
Humidity
72% *
Sunshine
244 hours *
Percentage Sunshine
*
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Primorsko typically drop from around 26°C (79°F) at the start of September to approximately 22°C (72°F) by the end. Nights are pleasant, with lows typically ranging from 13°C (55°F) to 17°C (63°F).
Average temperatures in September
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Primorsko in September
Browse day-by-day weather records for Primorsko spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Primorsko historical weather extremes in September
Based on weather observations in Primorsko between 1997 and 2025, these are the recorded extremes during September.
- Primorsko recorded its highest September temperature of 35°C (95°F) on September 16, 2022.
- On September 24, 2000, Primorsko saw its coldest September day with temperatures maxing out at 14°C (57°F).
- The lowest overnight temperature recorded in September was 5°C (41°F) (September 24, 1997).
Best Places in Bulgaria in September
Find out more about the weather in Bulgaria and which places have the best travel conditions in this month. See all of Bulgaria in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Primorsko in September
For Primorsko in September, 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. Rain is likely on several days, so bring a good rain jacket. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Primorsko in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Bulgaria, check out our Primorsko's climate page.
Temperature Rainfall Sunshine Humidity
See the full Primorsko climate overview or explore weather in Bulgaria.
