nomadseason

Monthly climate in Dalay, Mongolia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Dalay features a cold desert climate (BWk). Temperatures typically range between -14 °C (6 °F) and 21 °C (70 °F) through the year, but rarely can drop to -31 °C (-24 °F) or can rise to as high as 33 °C (93 °F). The average annual precipitation amounts to about 128 mm (5.0 inches) and receives 25 rainy days on the 1 mm (0.04 inches) threshold annually. Dalay enjoys an average of 3776 hours of sunshine throughout the year, and daylight varies from 8 hours 59 minutes to 15 hours 20 minutes per day.

Monthly average temperatures in Dalay, Mongolia

The warmest months in Dalay are June, July and August, with daily mean temperatures ranging from 19 to 21 °C (66 - 70 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -14 to -11 °C (6 - 13 °F) throughout the day. On average each year, Dalay experiences 42 days above 25 °C (77.0 °F) and 175 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Dalay. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum2°C
(36°F)		8°C
(47°F)		16°C
(60°F)		25°C
(78°F)		30°C
(86°F)		33°C
(91°F)		33°C
(93°F)		30°C
(86°F)		26°C
(80°F)		25°C
(77°F)		11°C
(52°F)		3°C
(37°F)
Mean maximum-1°C
(30°F)		4°C
(39°F)		12°C
(54°F)		22°C
(72°F)		28°C
(83°F)		29°C
(84°F)		32°C
(89°F)		29°C
(84°F)		25°C
(78°F)		18°C
(64°F)		10°C
(51°F)		-1°C
(31°F)
Average high-9°C
(17°F)		-4°C
(24°F)		5°C
(41°F)		12°C
(55°F)		18°C
(65°F)		24°C
(76°F)		26°C
(80°F)		24°C
(75°F)		19°C
(67°F)		9°C
(48°F)		0°C
(32°F)		-8°C
(17°F)
Daily mean-14°C
(6°F)		-11°C
(13°F)		-1°C
(30°F)		7°C
(44°F)		13°C
(55°F)		19°C
(66°F)		21°C
(70°F)		19°C
(66°F)		14°C
(57°F)		3°C
(38°F)		-6°C
(22°F)		-14°C
(8°F)
Average low-19°C
(-2°F)		-16°C
(3°F)		-7°C
(19°F)		1°C
(33°F)		6°C
(43°F)		12°C
(55°F)		15°C
(60°F)		13°C
(56°F)		8°C
(47°F)		-2°C
(29°F)		-10°C
(14°F)		-18°C
(0°F)
Mean minimum-26°C
(-15°F)		-24°C
(-12°F)		-15°C
(5°F)		-8°C
(18°F)		-3°C
(26°F)		5°C
(42°F)		10°C
(50°F)		7°C
(45°F)		1°C
(33°F)		-9°C
(17°F)		-19°C
(-2°F)		-25°C
(-14°F)
Minimum-31°C
(-24°F)		-28°C
(-18°F)		-17°C
(2°F)		-14°C
(7°F)		-8°C
(19°F)		0°C
(33°F)		9°C
(48°F)		4°C
(40°F)		-4°C
(25°F)		-13°C
(8°F)		-21°C
(-5°F)		-30°C
(-21°F)

Compare climate in Dalay with other places

Compare temperature, precipitation, sunshine, UV index in Dalay, Mongolia with other places around the world.

Monthly average precipitation in Dalay, Mongolia

Dalay usually has the most precipitation in June, July and August, with an average of 5 rainy days and 26 mm (1.0 inches) of precipitation per month. The driest months in Dalay are January, November and December. On average, 2 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Dalay. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)2 (0.1)4 (0.2)9 (0.3)7 (0.3)11 (0.4)15 (0.6)39 (1.5)24 (0.9)10 (0.4)4 (0.1)3 (0.1)1 (0.1)
Average precipitation days (≥ 1 mm)012123753010

Monthly sunshine hours in Dalay, Mongolia

The sunniest months in Dalay are May, July and August, when the sun shines an average of 11 hours 42 minutes a day. Least sunny months in Dalay: January, November and December receive an average of 8 hours 16 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Dalay. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours218275329329361359368359323308272270
Mean daily daylight hours9h 20m10h 29m11h 56m13h 25m14h 41m15h 20m15h 1m13h 53m12h 28m10h 59m9h 40m8h 59m

Solar UV radiation in Dalay, Mongolia

Dalay experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 11 - 11, which corresponds to the Extreme 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 Dalay UV Index data.

Average daily maximum UV levels by month for Dalay. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)2468101111118532