During the day morning clear, in the afternoon initially clear, later cloudy. The highest temperature 86 °F. At night overcast. The lowest temperature 64 °F.

Interactive map weather Bulgaria

GPS: 42.6858; 26.3292

altitude: 889 ft
local time:

PLACES IN THE AREA

Weather forecast Sliven, Bulgaria extended forecast

Time			Precip.	Wind	Pressure	Humidity	Dew	total	Fog	Low	Middle	High
Wednesday 09/10/2025
3 AM 8 PM	clear	64 °F 66 °F	0.0 in	2 fps 1 mph north	30.1 in	69 %	52 °F	0 %	0%	0%	0%	0%
9 AM 2 AM	clear	73 °F 73 °F	0.0 in	2 fps 1 mph east	30.1 in	43 %	48 °F	7 %	0%	0%	0%	7%
3 PM 8 AM	cloudy	86 °F 84 °F	0.0 in	10 fps 7 mph south-southeast	30.1 in	26 %	45 °F	82 %	0%	0%	81%	9%
9 PM 2 PM	cloudy	72 °F 73 °F	0.0 in	8 fps 5 mph east-southeast	30.1 in	62 %	57 °F	38 %	0%	0%	16%	36%
Thursday 09/11/2025
3 AM 8 PM	overcast	64 °F 68 °F	0.0 in	1 fps 1 mph north-northwest	30.1 in	84 %	59 °F	97 %	0%	0%	97%	0%
9 AM 2 AM	cloudy	73 °F 73 °F	0.0 in	1 fps 1 mph west-southwest	30.0 in	49 %	52 °F	81 %	0%	0%	80%	3%
3 PM 8 AM	partly cloudy	84 °F 82 °F	0.0 in	9 fps 6 mph south	30.0 in	29 %	48 °F	19 %	0%	0%	18%	0%
9 PM 2 PM	clear	73 °F 75 °F	0.0 in	9 fps 6 mph east	30.0 in	56 %	55 °F	7 %	0%	0%	3%	3%

Sliven, Bulgaria - information

State: Bulgaria

GPS coordinates: 42.6858; 26.3292

Time zone: Europe / Sofia time difference in hours with time in NY is +1 hours

Population: 83 740
Altitude: 889 ft
The administrative part:

Oblast Sliven, Sliven
Sliven, Sliven

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Weather Sliven, Bulgaria. Weather forecast Sliven.

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Data source

Weather forecast for Sliven is supplied by MET Norway Norwegian Meteorological Institute and the NRK.

Feels like

To calculate the perceived temperature, we use the Australian Apparent Temperature (AAT) model, which is designed for year-round calculations and takes air humidity into account in addition to temperature and wind speed.

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Long-term statistical averages

	average	min.	max.	precipit… days
January	34 °F	28 °F	42 °F	5
February	37 °F	30 °F	46 °F	5
March	43 °F	34 °F	53 °F	6
April	53 °F	42 °F	65 °F	7
May	62 °F	50 °F	74 °F	7
June	69 °F	56 °F	82 °F	6
July	73 °F	59 °F	86 °F	4
August	72 °F	58 °F	85 °F	3
September	65 °F	52 °F	79 °F	4
October	55 °F	45 °F	67 °F	4
November	45 °F	37 °F	54 °F	6
December	38 °F	31 °F	45 °F	6

Statistical averages in charts Sliven

Astronomical information Sliven

data are always in the local time

Sun and light

Sept. 10, 2025

Sunrise:	Sunset:
6:48 am	7:33 pm
Noon:	Length of day:
1:11 pm	12:44
Start of civil twilight*:	End of civil twilight*:
6:19 am	8:02 pm
Start of nautical twilight*:	End of nautical twilight*:
5:46 am	8:35 pm
Start of astronomical twilight*:	End of astronomical twilight*:
5:11 am	9:10 pm
* What is Twilight?

Moon and moon phases

Moonrise:	Moonset:
09/09/2025 8:18 pm	09/10/2025 9:55 am
Next new moon:	Next full moon:
09/21/2025	10/06/2025

Weather Sliven long-term weather forecast