Sliven in september: average Weather, Temperature and Climate
Weather in Sliven in september 2025
The weather in Sliven in september comes from statistical datas on the last years. You can view the weather statistics for all the month, but also navigating through the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
perfect weather UV index: 6
Weather at 6am
65°F
Clear/Sunny
60% of time
25%
10%
4%
Weather at 12pm
79°F
Clear/Sunny
55% of time
28%
12%
4%
Weather at 6pm
67°F
Clear/Sunny
59% of time
24%
12%
5%
Weather at 3am
59°F
58%
24%
10%
5%
Evolution of daily average temperature and precipitation in Sliven in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Sliven in september.
The climate of Sliven in september is perfect
The climate in september in Sliven is rather dry (with 2.1in of precipitation over 3 days). The situation is deteriorating compared to the previous month since in august there is an average of 1.6in of precipitation over 2 days.
The climate nice in this city this month. Temperatures are up to 79°F. The minimum is 65°F. Thus, the mean temperature average in september in Sliven is 72°F. These temperatures are far removed from those records observed in Sliven in september with a maximum record of 97°F in 2009 and a minimum record of 43°F in 2021. You You can hope to have about 5 days with temperatures up to 86°F, or 17 of time.
Day length in Sliven in september is 12:29. The sun rises at 05:55 and sets at 18:24.
With a perfect climate, the month of september is advisable to go in this locality.
Seasonal average climate and temperature of Sliven in september
Check below seasonal norms These datas are set from the weather statements of the last years of the month of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 72°F | ||||
| Highest temperature | 79°F | ||||
| Lowest temperature | 65°F | ||||
| Highest record temperature | 97°F (2009) | ||||
| Lowest record temperature | 43°F (2021) | ||||
| Number of days at +86°F | 5 day(s) (17%) | ||||
| Number of days at +65°F | 28 day(s) (93%) | ||||
| Wind | |||||
| Wind speed | 14km/h | ||||
| Wind temperature | 65°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 2.1in | ||||
| Number of days with rainfall | 3 day(s) (10%) | ||||
| Record daily rainfall | 2.3in (2015) | ||||
| Snowfall | 0cm | ||||
| Other climate data | |||||
| Humidity | 63% | ||||
| Visibility | 9.63km | ||||
| Cloud cover | 23% | ||||
| UV index | 6 | ||||
| Daily sunshine hours | 12 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 05:55 | ||||
| Time of sunset | 18:24 | ||||
| Length of day | 12:29 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | perfect | ||||
How was the weather last september?
Here is the day by day recorded weather in Sliven in september 2024:
58°F to 85°F
61°F to 85°F
65°F to 90°F
67°F to 90°F
63°F to 88°F
63°F to 88°F
59°F to 77°F
56°F to 81°F
59°F to 83°F
63°F to 79°F
61°F to 68°F
59°F to 79°F
63°F to 83°F
63°F to 79°F
49°F to 74°F
49°F to 65°F
50°F to 74°F
54°F to 72°F
52°F to 70°F
56°F to 68°F
50°F to 74°F
52°F to 74°F
58°F to 77°F
56°F to 79°F
59°F to 83°F
59°F to 83°F
58°F to 85°F
59°F to 85°F
63°F to 77°F
50°F to 56°F
Map: other cities in Bulgaria in september
Cities near Sliven:
| Zheravna in september | perfect weather |
| Yambol in september | perfect weather |
| Stara Zagora in september | perfect weather |
| Veliko Tarnovo in september | perfect weather |
| Kazanlak in september | perfect weather |
| Etara in september | perfect weather |
| Burgas in september | perfect weather |
| Razgrad in september | perfect weather |
| Pliska in september | perfect weather |
| Haskovo in september | perfect weather |
| Pomorie in september | perfect weather |
| Slantchev Briag (Sunny Beach) in september | perfect weather |
Click over cities on the map for information about the weather in september.
Sliven
perfect weather
good
tolerable
bad
very bad
Weather data for Sliven in september:
Weather data for Sliven for september are derived from an average of the weather forecast since 2009 in Sliven. There is a margin of error and these forecasts are to be considered as general information only. The weather in Sliven can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Sliven.