Sliven Historic Weather Records
Analyse hottest, coldest, windiest & wettest days

Sliven Weather Trend Graph

Temperature (°C)

Months

Months	Historic Min Temp.	Min Temp.	Forecasted Min Temp.	Historic Max Temp.	Max Temp.	Forecasted Max Temp.
	-1.1062500000000004	-7		6.5125	0.6
	-0.8125000000000002	-5.3		5.8187500000000005	2.4
	-0.80625	-2.6		5.9125	9.1
	-0.8187499999999999	3.1		6.05	14
	-0.5499999999999997	7.5		5.568750000000001	12.3
	-0.22499999999999987	7.1		6.4125	13.7
	-0.84375	10.7		4.98125	15.2
	-1.1625	-1.9		5.2875000000000005	10.4
	-1.84375	-4		5.137499999999999	4.5
	-0.22499999999999998	-1.3		6.231249999999999	7.8
	-0.225	-5.8		6.3999999999999995	3.6
	-1.2562500000000003	-6.6		4.9875	-1.9
	-2.3687500000000004	-6.5		4.437500000000001	1.6
	-1.8437500000000002	-2.4		5.06875	3.1
Jan.	-1.2562499999999999	-0.9		5.218750000000001	8.4
	-1.175	-4.5		5.15	4.2
	-1.4374999999999998	-7		5.343750000000001	0.6
	-0.7812499999999999	-6.5		5.6187499999999995	-3
	-1.2062499999999996	-7.6		5.874999999999999	-2.4
	-1.5125000000000002	-7.9		5.83125	1.7
	-2.0625	-6.8		5.5249999999999995	2.8
	-1.6249999999999998	-0.7		5.093750000000001	1.4
	-1.45	-0.8		5.49375	4.9
	-2.01875	2.5		3.9312499999999995	6.5
	-2.475	3.7		4.41875	9.5
	-4.143750000000001	7.3		3.4937500000000004	10.3
	-3.2374999999999994	5		2.90625	10.6
	-3.1187500000000004	4.1		4.23125	9.5
	-2.743750000000001	4.4		4.15	8.8
	-2.25625	3.6		4.66875	8.7
	-1.7750000000000001	3.8		5.7250000000000005	5.5
	-1.4937500000000001	-3.2		7.04375	2.5
	-0.25624999999999987	-10.4		7.325000000000001	-1.7
	0.7500000000000001	-6.6		7.9937499999999995	0.1
	0.41249999999999987	-0.9		8.1625	2
	-0.48125000000000007	1.3		7.6375	5
	-0.45624999999999993	2.6		6.3687499999999995	10.1
	-0.7687499999999999	5.4		6.2	12.1
	-1.6687500000000002	5.7		5.631249999999999	11.9
	-2.0187500000000003	0.8		5.893749999999999	6.8
	-1.6	-0.9		6.5	3.1
	-0.5249999999999999	0.8		7.1875	4.7
	-0.60625	1.9		7.1625000000000005	6.1
	-0.98125	3.1		6.574999999999999	7.8
	-1.1125000000000003	3.5		6.637499999999998	11.6
Feb.	-0.5249999999999999	5.8		6.48125	13.5
	-0.65	2.6		7.074999999999999	8.8
	-0.63125	2.5		7.887499999999998	7.5
	-0.04375000000000001	-0.2		8.924999999999999	4.3
	0.74375	-5		8.412499999999998	4.3
	1.09375	1.2		8.225	10.8
	0.50625	-0.8		8.65	9
	0.4375	-2.9		9.100000000000001	3.8
	1.2624999999999997	-2.6		8.825000000000001	7.3
	1.2312500000000002	2.2		8.943750000000001	11.2
	1.2187500000000002	2.9		9.131250000000001	8.4
	1.13125	-0.7		9.518749999999999	4.8
	1.2	-1.1		9.3375	7.3
	0.28750000000000003	-1.2		7.9937499999999995	8.4
	0.48125	-0.4		8.106250000000001	10.4
	1.2562499999999999	0.7		8.4	12.1
	1.4	3.9		10.06875	12.6
	1.9687499999999998	2.4		10.6	11.4
	1.9749999999999996	4.1		11.237500000000002	13.7
	1.8687500000000001	3.9		10.0375	13.2
	1.7374999999999998	1.2		10.781250000000002	10.2
	2.5	-0.5		10.1625	9.1
	2.05	0.6		9.924999999999999	9.9
	1.9375	0.5		9.7875	11.6
	2.4187499999999997	0.8		10.5375	12.9
	1.725	0.9		10.912499999999998	12.5
	2.275	1.6		11.075	13.4
	2.675	0.7		12.15625	11
Mar.	2.7437500000000004	0.2		12.60625	11.5
	2.60625	1.3		10.443749999999998	12
	1.63125	0.6		10.175	11.1
	0.7437499999999996	0.6		11.45	10
	1.8374999999999997	0		11.48125	6.5
	1.875	1.6		12.131250000000001	5.6
	2.9312499999999995	3		13.218750000000002	8.3
	3.2	4.9		12.850000000000001	6.1
	2.8187500000000005	4.7		12.46875	6.8
	2.675	4.4		12.95	7.6
	3.5375	3		13.487500000000002	12.7
	3.687499999999999	2.2		13.2625	13.3
	3.35625	3.2		13.39375	11.7
	3.7	6.5		12.625	11.9
	3.30625	5.3		13.387500000000001	8.2
	4.3	5.9		15.806249999999999	7.8
	5.581249999999999	6.8		16.224999999999998	10
	5.925	7.3		16.7125	13.2
	5.41875	7.3		15.356249999999998	9.9
	4.46875	8		14.037500000000001	12.7
	3.968750000000001	6.7		14.8125	13.8
	5.012499999999999	6.1		15.6125	17.6
	5.487500000000001	6.8		15.1625	18.7
	5.162499999999999	8.2		14.3375	16
	5.0062500000000005	3.5		15.36875	11.3
	4.824999999999999	1.1		15.69375	10.5
	4.40625	0.7		15.05	8.6
	4.58125	0.8		14.924999999999999	10
	5.112499999999999	2.8		16.13125	13.2
	5.8999999999999995	1.3		17.5625	11.7
	6.174999999999999	2.4		16.34375	13.8
Apr.	6.6375	2.9		17.606250000000003	14.5
	7.0375000000000005	4.8		16.86875	16.6
	6.3375	5.1		16.5125	18.2
	6.38125	5.3		15.568750000000001	14.5
	6.00625	5.5		14.718750000000002	16.5
	5.725	5.5		15.868749999999999	17.8
	5.581249999999999	5.8		15.9625	14.2
	5.4875	6.1		16.637499999999996	11.1
	6.01875	2.8		18.118750000000002	13.7
	7.19375	4		18.7	16.7
	7.625	6.8		19.181250000000002	18.6
	7.862500000000001	8.6		20.05	21.8
	7.875	3.1		18.531249999999996	13.6
	7.6375	3.1		18.637500000000003	17.4
	7.956249999999999	4.5		19.831249999999997	15.8
	8.51875	3.3		20.193749999999998	8.8
	9.218750000000002	0.4		20.537499999999998	9.8
	9.05	0.2		21.162499999999998	9.6
	9.19375	0.1		20.506249999999994	10.4
	9.525000000000002	1.9		20.55	15.6
	10.11875	6.4		20.043749999999996	19.6
	9.943750000000001	5.9		20.343749999999996	21.1
	9.1	7		20.256249999999998	21.8
	8.1125	10.2		19.76875	21.8
	8.631250000000001	9.9		18.587500000000002	17.2
	8.568750000000001	11.8		18.562500000000004	20.3
	8.875	10.7		19.912500000000005	22.1
	9.71875	10.3		21.193749999999998	22
	10.487499999999999	9.1		21.806250000000002	16.5
	10.743749999999999	4.7		20.843750000000004	15.7
May	10.49375	5.4		21.993750000000002	19.2
	11.2625	7.9		22.03125	20
	11.131249999999998	9.5		20.65625	16.8
	10.24375	7.9		20.806250000000002	19.9
	10.05625	8.8		21.325000000000003	21
	11.025	9.6		21.94375	19.2
	11.187499999999998	10.6		22.79375	20.5
	11.274999999999999	12.5		22.61875	18.4
	11.693750000000001	12.2		23.09375	20
	11.475000000000001	12.1		22.3125	20.2
	11.58125	11.3		23.05625	23.3
	11.762500000000001	13.4		22.318749999999998	24.5
	12.075000000000001	14.1		21.9	26.2
	11.93125	11.9		21.7625	23.4
	11.981250000000001	10.5		21.93125	19.6
	11.99375	8.4		22.774999999999995	21.8
	12.368750000000002	10.6		22.81875	22.6
	11.899999999999999	12.5		23.431250000000002	23.8
	12.50625	13.1		23.562500000000004	22.2
	12.806249999999999	12.2		24.2125	24.1
	13.431249999999999	14.2		24.4625	24.4
	13.562500000000002	13.4		24.543749999999996	23.9
	13.83125	14		25.449999999999996	26.3
	13.425	15		24.999999999999996	25.2
	13.3875	14.4		25.487500000000004	26.1
	13.762499999999998	14.4		25.48125	25
	14.662499999999998	12.8		25.787499999999998	25.6
	14.8875	13.2		25.643749999999997	26.1
	14.99375	14.1		26.249999999999996	20.5
	15.993750000000002	11.9		27.212500000000002	21
	15.6	11		26.3375	24.5
Jun.	15.3	14.1		25.44375	27.4
	15.124999999999998	13.9		25.931250000000002	24.5
	15.29375	12.7		26.356250000000003	24.5
	15.6375	13.3		25.625	24.8
	15.625000000000004	12.5		26.868750000000002	23.7
	15.362499999999999	13		26.65	26.2
	15.031250000000002	15.6		27.368749999999995	27.4
	15.562499999999998	15.6		28.093750000000004	28.1
	16.187500000000004	15		28.518750000000004	28.2
	16.6875	14.7		28.9	28.1
	16.86875	16.7		28.606249999999996	28.6
	16.6375	17.8		27.49375	29.5
	16.275	16.7		27.593749999999996	29.3
	15.943750000000001	15.5		26.925	29.7
	15.46875	17.8		26.875	32.6
	15.70625	19.3		27.831250000000004	33.6
	16.8	18.5		28.8125	30.7
	16.6375	16.4		29.337499999999995	30.1
	16.35625	16.2		28.31875	28.7
	15.812500000000002	17.1		27.875000000000004	25.9
	16.56875	14.3		28.76875	26.4
	16.80625	13.6		29.16875	26.6
	17.48125	15.7		29.724999999999998	27.9
	17.5625	16.8		28.931250000000002	30.3
	17.006249999999994	14.2		29.156250000000007	25
	16.91875	12.6		28.881249999999994	27.4
	16.7125	14.1		29.31875	29
	16.681250000000002	15.4		29.9875	30.4
	17.45	14.1		31.206250000000004	27.3
	17.63125	13.3		29.7	27.8
Jul.	17.4375	16.5		30.21875	30.8
	17.7125	18		30.075	30.8
	17.400000000000002	18.1		30.65625	30.9
	17.6625	17.3		29.5125	32.4
	17.51875	17.3		30.374999999999996	33.3
	17.9375	17.8		30.756249999999998	34.8
	18.3875	18.8		30.63125	32.5
	18.38125	13.7		31.693750000000005	28.1
	18.575	12.8		31.1125	24.3
	18.20625	12.7		30.631249999999998	25.5
	18.593750000000004	12.5		30.918750000000003	24.2
	18.64375	13.2		31.012500000000003	29.5
	18.256249999999998	15.9		30.193750000000005	32.8
	17.925	17.7		30.837500000000002	33
	18.825	16		31.74375	31.1
	19.250000000000004	15		31.831249999999997	32.1
	19.106250000000003	16		30.706250000000004	31.4
	18.7125	15.7		30.662499999999998	30.4
	18.6125	14.9		30.9875	32.3
	18.874999999999996	16.4		31.86875	33.3
	19.343749999999996	19		31.825	34.9
	18.93125	19.3		31.525	35.4
	18.549999999999997	19.2		31.243750000000006	35
	18.868750000000002	18.3		31.7875	34.5
	18.96875	20.1		31.675	34.5
	18.6875	19.1		32.125	32
	18.650000000000002	18.5		31.362500000000004	32.9
	18.393749999999997	17.5		30.818749999999994	34.6
	18.525	19.3		31.443750000000005	34.7
	17.8375	16		30.49375	30.1
	17.60625	14.8		30.581250000000004	29.2
Aug.	17.7875	12.1		31.20625	28.8
	18.537499999999998		12.7	31.106250000000003		30.6
	17.9125		14.2	30.6		33.1
	17.90625		15.3	30.631250000000005		34.5
	17.587500000000002		15.8	30.2		35.9
	17.54375		20.8	30.437499999999996		37.7
	17.39375		19.8	29.818749999999994		37.3
	17.7875		18.7	30.5375		38.4
	17.9625		19.3	30.4		36.3
	17.9375		17.6	30.412499999999998		29.9
	17.83125		17.5	30.40625		30.2
	17.88125		17.5	30.23125		29.8
	17.41875		17.1	30.575000000000006		30.4
	17.53125		17.5	30.325		29.9
	17.256249999999994		17	28.85		29.2
	16.7		16.9	28.593749999999996		28.9
	16.13125		16.1	28.787499999999994		28.4
	16.106250000000003		15.9	28.5125		28.5
	16.956249999999997		16.5	29.487499999999997		29.3
	16.35625		16.3	28.6875		28.9
	16.225		16.2	27.500000000000004		27.3
	15.35		15.3	26.46875		27.1
	14.8625		14.9	26.575		26.5
	15.018749999999999		14.9	27.281250000000004		26.1
	15.25		15	27.11875		26.5
	15.35		15.1	27.99375		27.4
	15.600000000000001		15.6	27.13125		26.6
	15.34375		15	27.11874999999999		26.4
	15.187500000000002		15	25.662499999999998		25.8
	14.731250000000001		14.9	26.75625		26.6
	14.51875		14.4	27.16875		27.1
Sep.	15.337499999999999		15.4	27.78125		27.2
	15.693749999999998			27.1625
	15.2625			26.537500000000005
	14.706250000000002			25.9875
	13.6875			25.0875
	13.649999999999999			24.33125
	12.306250000000002			23.418750000000003
	11.906249999999998			22.400000000000002
	11.5625			22.956249999999997
	11.881250000000001			24.25625
	12.862499999999999			23.962500000000006
	13.34375			23.93125
	12.843750000000002			22.562499999999996
	11.8125			22.062500000000004
	11.76875			22.34375
	12.012500000000001			21.45
	11.043750000000001			20.693749999999998
	10.8125			19.849999999999998
	10.106250000000001			20.1375
	9.64375			20.106250000000003
	10.125			20.7125
	10.73125			20.58125
	9.850000000000001			19.387500000000003
	9.575000000000001			18.637500000000003
	8.70625			16.9875
	8.4375			17.437500000000004
	9.762500000000001			18.206249999999997
	10.075			19.10625
	9.68125			19.437499999999996
	9.606250000000003			18.393749999999997
Oct.	9.525			18.85
	9.575000000000001			18.44375
	9.18125			18.037499999999998
	9.268749999999999			17.10625
	8.3125			17.8
	8.34375			18.031250000000004
	8.09375			18.11875
	8.6			17.9375
	9.231250000000001			18.3125
	8.91875			17.7625
	7.625			16.699999999999996
	7.156249999999999			16.443749999999998
	7.1187499999999995			16.031249999999996
	7.137499999999999			15.524999999999999
	6.918749999999998			16.44375
	7.168749999999999			16.043750000000003
	7.0687500000000005			14.893750000000002
	6.481249999999998			14.71875
	6.33125			14.94375
	6.81875			16
	7.174999999999999			16.125
	7.393750000000001			16.168750000000003
	7.525000000000001			16.30625
	7.96875			15.64375
	7.78125			16.237500000000004
	7.631249999999999			16.068749999999998
	6.7250000000000005			14.868749999999999
	6.55			13.83125
	6.481249999999999			13.6875
	6.581250000000001			13.543750000000001
	6.16875			13.09375
Nov.	5.293749999999999			12.256250000000001
	4.5625			11.462500000000002
	4.9750000000000005			11.40625
	4.76875			11.962499999999999
	5.2125			12.14375
	5.04375			12.356250000000001
	5.5375			12.5375
	5.0562499999999995			11.3875
	4.3062499999999995			10.575
	3.7687500000000007			10.412500000000001
	3.1875			9.81875
	2.39375			8.743749999999999
	2.13125			8.73125
	2.1937499999999996			9.1375
	1.95625			9.11875
	1.56875			8.337499999999999
	1.90625			8.6875
	2.8312499999999994			9.006249999999998
	2.8875000000000006			9.46875
	1.15			7.8062499999999995
	0.8625			7.1625
	1.8499999999999999			7.706250000000001
	1.4999999999999998			7.7124999999999995
	1.58125			7.58125
	1.71875			7.906250000000002
	1.18125			8.26875
	1.2375000000000003			7.831250000000002
	1.3750000000000002			7.700000000000001
	0.6812500000000001			7.13125
	0.44374999999999987			7.018750000000001
Dec.	0.75			7.0249999999999995
	0.51875			6.7625
	0.4125000000000001			6.64375
	0.2062500000000001			6.5375
	-0.03124999999999989			5.975
	-0.5187500000000002			6.2437499999999995
	-0.7187500000000001			6.0125
	-0.4375000000000002			5.512499999999999
	-0.6750000000000003			6.4875
	0.0625			7.7
	0.65			8.381249999999998
	0.64375			7.437499999999999
	0.5999999999999999			7.543749999999998
	0.14375000000000004			7.20625
	0.04999999999999993			6.725
	-1.6			3.9125000000000005
	-1.7333333333333332			4.56

Max Temp.

Historic Max Temp.

Min Temp.

Historic Min Temp.

Yearly Summary 2026

35°C

Highest Temp

5 Aug. 26

-10°C

Lowest Temp

2 Feb. 26

Seasonal Breakdown

Hottest MonthAugust32.84°C

Coldest MonthJanuary-0.75°C

Wettest MonthFebruary4.74mm

Windiest MonthAugust19.69km/h

Sliven Climate Change InsightsSee how climate patterns are evolving over time. Temperature shifts, rainfall trends, and extreme events—all in one place.

Weather City Ranking GloballyExplore Real time of the world’s hottest & Coldest Cities based on current temperature data.

Frequently Asked Questions

1. What is the hottest month in Sliven historically?

August is historically Sliven's hottest month, with average maximum temperatures around 31°C. During peak heatwave events, the highest recorded temperatures have reached 40°C on 2025-07-22.

2. What is the coldest month in Sliven historically?

January is Sliven's coldest month, with average minimum temperatures around -1°C. The all-time record low of -17°C was recorded on 2018-03-01.

3. What is the average annual rainfall in Sliven over the past 17 years?

Sliven's average annual rainfall is approximately 636.06mm, based on records spanning 17 years.

4. How many rainy days does Sliven experience on average per year?

Sliven historically records approximately 154.3 rainy days per year. December has the highest number of rain days at an average of 12.5 days.

5. What is the all-time highest temperature ever recorded in Sliven?

The all-time highest temperature recorded in Sliven is 40°C on 2025-07-22.

6. What is the all-time lowest temperature ever recorded in Sliven?

The all-time lowest temperature recorded in Sliven is -17°C on 2018-03-01.

7. What is the windiest time of year in Sliven historically?

Sliven experiences its strongest winds during August. The historic gust record of 51.8 kph was recorded on 2023-11-26.

8. What is the highest and lowest humidity in Sliven during a year?

Usually, Sliven's humidity peaks in January at around 81.2% and drops to its lowest in August at approximately 50.8%.

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Sliven Historic Weather Records
Analyse hottest, coldest, windiest & wettest days

Sliven Weather Trend Graph

Yearly Summary 2026

Seasonal Breakdown

Frequently Asked Questions

Recent Blogs On Weather

World Top 10 Hottest Cities Are All in India Again - May 2026

Delhi Air Quality 2026 vs 6-Year Historical PM2.5 Data

What 17 Years of Delhi Temperature Data Reveal About May's Heatwave Escalation

World Top Hottest Cities Belong to India - April 2026

Construction Air Pollution: The Invisible Hazard Reshaping India's Urban Air

Kitchen Air Pollution: How Cooking Can Spike Your Indoor AQI

Mumbai Air Quality Comparison of 2025 Vs 2026 (Jan-Feb)

Why AQI Standards Vary Across the World - And Why Air Quality Index Matters More Than Ever

Why Winter Suffocates and Monsoon Saves Delhi Air Quality 2025?

Winter vs Summer Air: Why Air Pollution Behaves So Differently Across Seasons

Sliven Historic Weather RecordsAnalyse hottest, coldest, windiest & wettest days

Sliven Weather Trend Graph

Yearly Summary 2026

Seasonal Breakdown

Frequently Asked Questions

Recent Blogs On Weather

World Top 10 Hottest Cities Are All in India Again - May 2026

Delhi Air Quality 2026 vs 6-Year Historical PM2.5 Data

What 17 Years of Delhi Temperature Data Reveal About May's Heatwave Escalation

World Top Hottest Cities Belong to India - April 2026

Construction Air Pollution: The Invisible Hazard Reshaping India's Urban Air

Kitchen Air Pollution: How Cooking Can Spike Your Indoor AQI

Mumbai Air Quality Comparison of 2025 Vs 2026 (Jan-Feb)

Why AQI Standards Vary Across the World - And Why Air Quality Index Matters More Than Ever

Why Winter Suffocates and Monsoon Saves Delhi Air Quality 2025?

Winter vs Summer Air: Why Air Pollution Behaves So Differently Across Seasons

Sliven Historic Weather Records
Analyse hottest, coldest, windiest & wettest days