Bulgaria in september: average Weather, Temperature and Climate, Where to go?
Weather in Bulgaria in september 2025
In this section, check out the weather forecast for september for most popular cities in Bulgaria. These datas are probabilities for september from weather reports for over 10 years. The percentage indicates the possibility of having the weather mentioned.
Average weather in september in Sofia
perfect weather UV index: 6
Weather at 6am
61°F
Clear/Sunny
56% of time
27%
9%
4%
Weather at 12pm
76°F
Clear/Sunny
48% of time
28%
18%
4%
Weather at 6pm
59°F
Clear/Sunny
50% of time
23%
18%
6%
Weather at 3am
52°F
50%
23%
13%
12%
Where to go in Bulgaria in september?
Where to go in Bulgaria in september: destination map
Where to go in each region in september?
| Black sea coast of Bulgaria (Varna, Burgas, Slantchev Briag (Sunny Beach)...) | 74°F to 77°F | 2 à 3 days | 74°F | perfect weather |
| Central of Bulgaria (Plovdiv, Pleven, Sliven...) | 77°F to 83°F | 2 à 4 days | perfect weather | |
| North West of Bulgaria (Sofia, Montana, Vidin...) | 76°F to 81°F | 2 à 4 days | perfect weather | |
| South West of Bulgaria (Melnik, Blagoevgrad, Pazardjik...) | 72°F to 81°F | 3 à 5 days | good weather* |
Where should you go in Bulgaria in september when it comes to the weather?
Remember:
The climate in Bulgaria in september ranges from perfect to good depending on the region and city.
September begins the end of the summer season. Temperatures are beginning to decline as rains intensify once again. As this change in climate conditions is gradual however, the climate throughout September in Bulgaria remains pleasant or even ideal - as is for the cities bordering the Black Sea.
September on the Black Sea Coast
Despite the fall in temperature, the pleasant heat still enhances the beautiful sunny days on the Black Sea coast. Due to the fact that the humidity varies from one locality to another, some cities are more watered than others. While in Burgas and Sozopol, rains are still rare and the weather is ideal.
September in Central Bulgaria
The mornings gradually cool. With morning temperatures around 16° C, people sensitive to the cold should think of wearing light sweaters - especially as the rains show up from time to time. In the middle of the day however, the heat is still comfortable. The daily thermal amplitude in the Thracian plain is actually quite high.
September in West Bulgaria
Despite the increase in precipitation, the weather in Bulgaria throughout September remains pleasant. The heat is indeed still pleasant as the mornings are gentle and midday is magnificent. The beautiful sun is often on the program.
Climate in Bulgaria in september
Climate in Sofia in september
In the month of september, the mean temperature in Sofia is 68°F (maximum temperature is 77°F and minimum temperature is 61°F). The climate enjoyable in that area in this month. With 2.4in over 3 days, you risk getting wet slightly throughout your holidays. But this is moderate and it will not be continuous.
With good weather conditions, the month of september is an advisable month to go in Sofia.
| September | |||
| Average temperature | 68°F | ||
| Highest temperature | 77°F | ||
| Lowest temperature | 61°F | ||
| Rainfall | 2.4in | ||
| Number of days with rainfall | 3 day(s) (12%) | ||
| Humidity | 69% | ||
| Daily sunshine hours | 12 | ||
| Cloud cover | 26% | ||
| Length of day | 12:30 | ||
| Our opinion at whereandwhen.net | perfect |
Climate in Burgas in september
In the month of september, the mean temperature in Burgas is 74°F (maximum temperature is 77°F and minimum temperature is 68°F). The climate quite comfortable here in september. With 1.8in over 2 days, you risk getting wet slightly during your stay. But this is moderate and you will not be too bothered by it.
With a perfect climate, september is an advisable month to go there.
| September | |||
| Average temperature | 74°F | ||
| Highest temperature | 77°F | ||
| Lowest temperature | 68°F | ||
| Sea temperature | 74°F | ||
| Rainfall | 1.8in | ||
| Number of days with rainfall | 2 day(s) (7%) | ||
| Humidity | 68% | ||
| Daily sunshine hours | 12 | ||
| Cloud cover | 24% | ||
| Length of day | 12:30 | ||
| Our opinion at whereandwhen.net | perfect |
Climate in Plovdiv in september
In september, the mean temperature in Plovdiv is 72°F (maximum temperature is 81°F and minimum temperature is 65°F). The climate quite nice in this city in this month. With 2.2in over 3 days, rainfall can happen for your vacations. But this is pretty reasonably and it will not be continuous.
With a good weather, september is a good time to go in that area.
| September | |||
| Average temperature | 72°F | ||
| Highest temperature | 81°F | ||
| Lowest temperature | 65°F | ||
| Rainfall | 2.2in | ||
| Number of days with rainfall | 3 day(s) (9%) | ||
| Humidity | 64% | ||
| Daily sunshine hours | 12 | ||
| Cloud cover | 22% | ||
| Length of day | 12:29 | ||
| Our opinion at whereandwhen.net | perfect |
Climate in Slantchev Briag (Sunny Beach) in september
In the month of september, maximum temperature is 77°F and minimum temperature is 68°F (for an average temperature of 72°F). The climate quite good in this location in september. With 2.4in over 3 days, rain may occur throughout your trip. But this is pretty moderate and it will not be continuous.
With a good climate, september is a good month to go in this locality in Bulgaria.
| September | |||
| Average temperature | 72°F | ||
| Highest temperature | 77°F | ||
| Lowest temperature | 68°F | ||
| Sea temperature | 74°F | ||
| Rainfall | 2.4in | ||
| Number of days with rainfall | 3 day(s) (10%) | ||
| Humidity | 69% | ||
| Daily sunshine hours | 12 | ||
| Cloud cover | 22% | ||
| Length of day | 12:30 | ||
| Our opinion at whereandwhen.net | perfect |
Climate in Varna in september
In the month of september, maximum temperature is 77°F and minimum temperature is 68°F (for an average temperature of 72°F). The climate quite nice here in this month. With barely 1.9in over 3 days, rainfall is infrequent during your trip.
With a good weather, september is a recommended month to go in that area in Bulgaria.
| September | |||
| Average temperature | 72°F | ||
| Highest temperature | 77°F | ||
| Lowest temperature | 68°F | ||
| Sea temperature | 73°F | ||
| Rainfall | 1.9in | ||
| Number of days with rainfall | 3 day(s) (8%) | ||
| Humidity | 68% | ||
| Daily sunshine hours | 12 | ||
| Cloud cover | 22% | ||
| Length of day | 12:30 | ||
| Our opinion at whereandwhen.net | perfect |
All cities in Bulgaria in september
| Sofia in september | perfect weather |
| Burgas in september | perfect weather |
| Plovdiv in september | perfect weather |
| Slantchev Briag (Sunny Beach) in september | perfect weather |
| Varna in september | perfect weather |
| Blagoevgrad in september | good weather |
| Melnik in september | good weather |
| Montana in september | perfect weather |
| Pazardjik in september | perfect weather |
| Pleven in september | perfect weather |
| Sliven in september | perfect weather |
| Vidin in september | perfect weather |
| Albena in september | perfect weather |
| Ardino in september | perfect weather |
| Baltchik in september | perfect weather |
| Bansko in september | good weather |
| Byala in september | perfect weather |
| Chabla in september | perfect weather |
| Etara in september | perfect weather |
| Haskovo in september | perfect weather |
| Kavarna in september | perfect weather |
| Kazanlak in september | perfect weather |
| Nessebar in september | perfect weather |
| Obzor in september | perfect weather |
| Pirin National Park in september | good weather |
| Pliska in september | perfect weather |
| Pobitite Kamuni in september | perfect weather |
| Pomorie in september | perfect weather |
| Razgrad in september | perfect weather |
| Roussé Русе in september | perfect weather |
| Shkorpilovtsi in september | perfect weather |
| Sozopol in september | perfect weather |
| Stara Zagora in september | perfect weather |
| Tsarevo in september | perfect weather |
| Veliko Tarnovo in september | perfect weather |
Weather data for Bulgaria in september:
Weather data for Bulgaria in september is derived from an average of the weather forecast since 2009 in Bulgaria. There is a margin of error and these forecasts are to be considered as general information only. The weather in Bulgaria can vary slightly from year to year, but these predictions should limit surprises. So you can pack your bags and check when is the best time to go to Bulgaria.