nomadseason

Monthly climate in Harmanli, Bulgaria

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Harmanli features a humid subtropical climate (Cfa). Temperatures typically range between 2 °C (37 °F) and 26 °C (79 °F) through the year, but rarely can drop to -15 °C (5 °F) or can rise to as high as 41 °C (105 °F). The average annual precipitation amounts to about 702 mm (27.6 inches) and receives 97 rainy days on the 1 mm (0.04 inches) threshold annually. Harmanli enjoys an average of 3734 hours of sunshine throughout the year, and daylight varies from 9 hours 9 minutes to 15 hours 9 minutes per day.

Monthly average temperatures in Harmanli, Bulgaria

The warmest months in Harmanli are June, July and August, with daily mean temperatures ranging from 22 to 26 °C (71 - 79 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 2 to 6 °C (37 - 42 °F) throughout the day. On average each year, Harmanli experiences 107 days above 25 °C (77.0 °F) and 46 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Harmanli. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum17°C
(62°F)		20°C
(68°F)		23°C
(73°F)		28°C
(82°F)		33°C
(93°F)		37°C
(99°F)		41°C
(105°F)		40°C
(104°F)		36°C
(96°F)		34°C
(94°F)		25°C
(77°F)		19°C
(66°F)
Mean maximum14°C
(57°F)		18°C
(64°F)		21°C
(70°F)		25°C
(78°F)		30°C
(87°F)		33°C
(92°F)		37°C
(99°F)		37°C
(99°F)		34°C
(93°F)		27°C
(81°F)		22°C
(72°F)		17°C
(63°F)
Average high7°C
(44°F)		10°C
(51°F)		13°C
(56°F)		18°C
(65°F)		24°C
(76°F)		27°C
(82°F)		31°C
(88°F)		33°C
(91°F)		28°C
(83°F)		21°C
(70°F)		14°C
(58°F)		9°C
(49°F)
Daily mean2°C
(37°F)		5°C
(42°F)		8°C
(46°F)		12°C
(55°F)		18°C
(65°F)		22°C
(71°F)		25°C
(77°F)		26°C
(79°F)		21°C
(71°F)		15°C
(59°F)		10°C
(50°F)		6°C
(42°F)
Average low-1°C
(30°F)		1°C
(34°F)		3°C
(38°F)		7°C
(44°F)		12°C
(54°F)		16°C
(61°F)		19°C
(66°F)		19°C
(67°F)		15°C
(60°F)		10°C
(50°F)		6°C
(43°F)		2°C
(36°F)
Mean minimum-7°C
(19°F)		-7°C
(20°F)		-5°C
(24°F)		1°C
(34°F)		6°C
(43°F)		12°C
(54°F)		15°C
(59°F)		15°C
(59°F)		8°C
(46°F)		5°C
(41°F)		-0°C
(32°F)		-5°C
(23°F)
Minimum-13°C
(9°F)		-13°C
(9°F)		-15°C
(5°F)		-1°C
(30°F)		4°C
(39°F)		10°C
(51°F)		14°C
(57°F)		13°C
(56°F)		5°C
(42°F)		3°C
(37°F)		-3°C
(26°F)		-6°C
(21°F)

Compare climate in Harmanli with other places

Compare temperature, precipitation, sunshine, UV index in Harmanli, Bulgaria with other places around the world.

Monthly average precipitation in Harmanli, Bulgaria

Harmanli usually has the most precipitation in June, October and December, with an average of 10 rainy days and 91 mm (3.6 inches) of precipitation per month. The driest months in Harmanli are February, August and September. On average, 29 mm (1.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Harmanli. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)55 (2.2)48 (1.9)68 (2.7)51 (2.0)61 (2.4)108 (4.2)49 (1.9)17 (0.7)23 (0.9)81 (3.2)58 (2.3)85 (3.3)
Average precipitation days (≥ 1 mm)7811811146347711

Monthly sunshine hours in Harmanli, Bulgaria

The sunniest months in Harmanli are June, July and August, when the sun shines an average of 13 hours 24 minutes a day. Least sunny months in Harmanli: January, November and December receive an average of 6 hours 41 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Harmanli. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours170230285344395403427403342286227217
Mean daily daylight hours9h 30m10h 34m11h 57m13h 21m14h 33m15h 9m14h 50m13h 47m12h 26m11h 2m9h 48m9h 9m

Solar UV radiation in Harmanli, Bulgaria

Harmanli experiences the highest level of ultraviolet (UV) radiation in May, June and August, when the maximum UV index can reach values of 9 - 10, which corresponds to the Very High category of sun exposure. January, November and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Harmanli UV Index data.

Average daily maximum UV levels by month for Harmanli. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)2467910997632