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Monthly climate in Sandanski, Bulgaria

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Sandanski features a humid subtropical climate (Cfa). Temperatures typically range between 2 °C (35 °F) and 24 °C (75 °F) through the year, but rarely can drop to -19 °C (-2 °F) or can rise to as high as 38 °C (100 °F). The average annual precipitation amounts to about 793 mm (31.2 inches) and receives 113 rainy days on the 1 mm (0.04 inches) threshold annually. Sandanski enjoys an average of 3786 hours of sunshine throughout the year, and daylight varies from 9 hours 13 minutes to 15 hours 6 minutes per day.

Monthly average temperatures in Sandanski, Bulgaria

The warmest months in Sandanski are June, July and August, with daily mean temperatures ranging from 20 to 24 °C (69 - 75 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 2 to 5 °C (35 - 41 °F) throughout the day. On average each year, Sandanski experiences 84 days above 25 °C (77.0 °F) and 59 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Sandanski. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum14°C
(57°F)		18°C
(65°F)		22°C
(71°F)		26°C
(78°F)		30°C
(86°F)		35°C
(96°F)		37°C
(98°F)		38°C
(100°F)		33°C
(92°F)		27°C
(81°F)		23°C
(74°F)		14°C
(58°F)
Mean maximum11°C
(53°F)		16°C
(60°F)		20°C
(68°F)		24°C
(75°F)		28°C
(82°F)		31°C
(89°F)		34°C
(94°F)		35°C
(95°F)		31°C
(88°F)		24°C
(75°F)		19°C
(67°F)		13°C
(55°F)
Average high6°C
(42°F)		9°C
(49°F)		12°C
(55°F)		17°C
(63°F)		22°C
(71°F)		26°C
(78°F)		29°C
(85°F)		30°C
(86°F)		25°C
(78°F)		19°C
(67°F)		13°C
(56°F)		8°C
(46°F)
Daily mean2°C
(35°F)		5°C
(41°F)		7°C
(45°F)		12°C
(53°F)		17°C
(62°F)		20°C
(69°F)		23°C
(74°F)		24°C
(75°F)		19°C
(67°F)		13°C
(57°F)		9°C
(48°F)		4°C
(40°F)
Average low-2°C
(28°F)		-0°C
(32°F)		2°C
(36°F)		5°C
(42°F)		10°C
(51°F)		14°C
(57°F)		17°C
(62°F)		17°C
(63°F)		13°C
(55°F)		8°C
(46°F)		4°C
(40°F)		1°C
(34°F)
Mean minimum-10°C
(15°F)		-7°C
(20°F)		-5°C
(23°F)		-1°C
(31°F)		5°C
(41°F)		10°C
(50°F)		13°C
(55°F)		13°C
(55°F)		5°C
(42°F)		2°C
(35°F)		-2°C
(29°F)		-5°C
(24°F)
Minimum-19°C
(-2°F)		-17°C
(1°F)		-13°C
(8°F)		-4°C
(25°F)		4°C
(39°F)		6°C
(43°F)		12°C
(54°F)		9°C
(49°F)		2°C
(35°F)		0°C
(33°F)		-5°C
(23°F)		-6°C
(22°F)

Compare climate in Sandanski with other places

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

Monthly average precipitation in Sandanski, Bulgaria

Sandanski usually has the most precipitation in March, November and December, with an average of 11 rainy days and 93 mm (3.7 inches) of precipitation per month. The driest months in Sandanski are July, August and September. On average, 38 mm (1.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sandanski. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)68 (2.7)64 (2.5)92 (3.6)69 (2.7)73 (2.9)70 (2.8)50 (2.0)31 (1.2)32 (1.3)56 (2.2)76 (3.0)111 (4.4)
Average precipitation days (≥ 1 mm)9101310111576461012

Monthly sunshine hours in Sandanski, Bulgaria

The sunniest months in Sandanski are May, June and July, when the sun shines an average of 13 hours 20 minutes a day. Least sunny months in Sandanski: January, November and December receive an average of 6 hours 57 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sandanski. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours184239298341399400426398345295232223
Mean daily daylight hours9h 32m10h 36m11h 57m13h 20m14h 31m15h 6m14h 47m13h 45m12h 25m11h 3m9h 50m9h 13m

Solar UV radiation in Sandanski, Bulgaria

Sandanski experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / Extreme category of sun exposure. January, February and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Sandanski UV Index data.

Average daily maximum UV levels by month for Sandanski. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)247810111098642