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Monthly climate in Kostinbrod, Bulgaria

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Kostinbrod features a oceanic climate (Cfb). Temperatures typically range between -2 °C (29 °F) and 20 °C (69 °F) through the year, but rarely can drop to -25 °C (-14 °F) or can rise to as high as 35 °C (96 °F). The average annual precipitation amounts to about 652 mm (25.7 inches) and receives 114 rainy days on the 1 mm (0.04 inches) threshold annually. Kostinbrod enjoys an average of 3721 hours of sunshine throughout the year, and daylight varies from 9 hours 4 minutes to 15 hours 15 minutes per day.

Monthly average temperatures in Kostinbrod, Bulgaria

The warmest months in Kostinbrod are June, July and August, with daily mean temperatures ranging from 18 to 20 °C (64 - 69 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -2 to 2 °C (29 - 36 °F) throughout the day. On average each year, Kostinbrod experiences 57 days above 25 °C (77.0 °F) and 98 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Kostinbrod. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum12°C
(54°F)		18°C
(64°F)		22°C
(71°F)		25°C
(78°F)		29°C
(84°F)		32°C
(91°F)		35°C
(95°F)		35°C
(96°F)		32°C
(90°F)		28°C
(84°F)		22°C
(73°F)		13°C
(55°F)
Mean maximum9°C
(49°F)		16°C
(61°F)		19°C
(67°F)		23°C
(74°F)		26°C
(79°F)		29°C
(85°F)		32°C
(90°F)		32°C
(90°F)		30°C
(86°F)		24°C
(76°F)		19°C
(66°F)		11°C
(53°F)
Average high2°C
(37°F)		7°C
(45°F)		10°C
(50°F)		15°C
(59°F)		20°C
(68°F)		23°C
(74°F)		26°C
(79°F)		27°C
(81°F)		23°C
(74°F)		17°C
(63°F)		11°C
(52°F)		5°C
(41°F)
Daily mean-2°C
(29°F)		2°C
(36°F)		5°C
(40°F)		9°C
(49°F)		14°C
(57°F)		18°C
(64°F)		20°C
(68°F)		20°C
(69°F)		16°C
(61°F)		10°C
(51°F)		6°C
(42°F)		1°C
(34°F)
Average low-6°C
(22°F)		-3°C
(28°F)		-0°C
(31°F)		3°C
(38°F)		8°C
(47°F)		12°C
(54°F)		14°C
(57°F)		14°C
(57°F)		10°C
(50°F)		5°C
(41°F)		2°C
(36°F)		-2°C
(28°F)
Mean minimum-18°C
(1°F)		-14°C
(7°F)		-8°C
(19°F)		-3°C
(27°F)		3°C
(37°F)		8°C
(46°F)		10°C
(50°F)		9°C
(49°F)		2°C
(36°F)		-0°C
(32°F)		-6°C
(21°F)		-10°C
(14°F)
Minimum-25°C
(-14°F)		-22°C
(-8°F)		-20°C
(-3°F)		-6°C
(21°F)		1°C
(34°F)		4°C
(39°F)		8°C
(47°F)		7°C
(44°F)		-2°C
(28°F)		-3°C
(27°F)		-14°C
(6°F)		-14°C
(7°F)

Compare climate in Kostinbrod with other places

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

Monthly average precipitation in Kostinbrod, Bulgaria

Kostinbrod usually has the most precipitation in March, June and December, with an average of 13 rainy days and 76 mm (3.0 inches) of precipitation per month. The driest months in Kostinbrod are August, September and November. On average, 32 mm (1.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Kostinbrod. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)55 (2.2)47 (1.8)74 (2.9)50 (2.0)65 (2.6)87 (3.4)67 (2.7)33 (1.3)25 (1.0)44 (1.7)37 (1.5)68 (2.7)
Average precipitation days (≥ 1 mm)981110141611746612

Monthly sunshine hours in Kostinbrod, Bulgaria

The sunniest months in Kostinbrod are June, July and August, when the sun shines an average of 13 hours 13 minutes a day. Least sunny months in Kostinbrod: January, November and December receive an average of 6 hours 42 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Kostinbrod. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours172237284342392393423400341287233210
Mean daily daylight hours9h 25m10h 32m11h 57m13h 24m14h 38m15h 15m14h 56m13h 50m12h 26m11h 0m9h 43m9h 4m

Solar UV radiation in Kostinbrod, Bulgaria

Kostinbrod experiences the highest level of ultraviolet (UV) radiation in June, July 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 Kostinbrod UV Index data.

Average daily maximum UV levels by month for Kostinbrod. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)24779101097632