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Monthly climate in Ullong, Indonesia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Ullong features a tropical rainforest climate (Af). Temperatures typically range between 21 °C (70 °F) and 22 °C (71 °F) through the year, but rarely can drop to 17 °C (63 °F) or can rise to as high as 27 °C (82 °F). The average annual precipitation amounts to about 8808 mm (346.8 inches) and receives 347 rainy days on the 1 mm (0.04 inches) threshold annually. Ullong enjoys an average of 3220 hours of sunshine throughout the year, and daylight varies from 12 hours 2 minutes to 12 hours 11 minutes per day.

Monthly average temperatures in Ullong, Indonesia

The warmest months in Ullong are May, November and December, with daily mean temperatures ranging from 22 to 22 °C (71 - 71 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 21 to 21 °C (70 - 70 °F) throughout the day. On average each year, Ullong experiences 118 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Ullong. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum27°C
(81°F)		27°C
(81°F)		27°C
(80°F)		27°C
(80°F)		27°C
(81°F)		26°C
(79°F)		26°C
(79°F)		27°C
(80°F)		27°C
(80°F)		27°C
(82°F)		27°C
(81°F)		27°C
(81°F)
Mean maximum27°C
(80°F)		26°C
(80°F)		26°C
(80°F)		26°C
(79°F)		27°C
(80°F)		25°C
(78°F)		25°C
(78°F)		26°C
(79°F)		26°C
(80°F)		27°C
(81°F)		27°C
(80°F)		27°C
(81°F)
Average high25°C
(77°F)		25°C
(77°F)		25°C
(77°F)		25°C
(77°F)		25°C
(77°F)		24°C
(76°F)		24°C
(75°F)		24°C
(76°F)		25°C
(76°F)		25°C
(77°F)		25°C
(77°F)		25°C
(77°F)
Daily mean22°C
(71°F)		21°C
(71°F)		21°C
(71°F)		22°C
(71°F)		22°C
(71°F)		21°C
(70°F)		21°C
(70°F)		21°C
(70°F)		21°C
(70°F)		21°C
(71°F)		22°C
(71°F)		22°C
(71°F)
Average low19°C
(67°F)		19°C
(67°F)		19°C
(67°F)		19°C
(67°F)		19°C
(67°F)		19°C
(67°F)		19°C
(66°F)		19°C
(66°F)		19°C
(66°F)		19°C
(66°F)		19°C
(67°F)		19°C
(67°F)
Mean minimum18°C
(65°F)		18°C
(65°F)		18°C
(65°F)		18°C
(65°F)		19°C
(66°F)		18°C
(65°F)		18°C
(64°F)		18°C
(64°F)		18°C
(65°F)		18°C
(64°F)		18°C
(65°F)		18°C
(65°F)
Minimum18°C
(65°F)		18°C
(64°F)		17°C
(63°F)		17°C
(63°F)		18°C
(65°F)		18°C
(65°F)		17°C
(63°F)		18°C
(64°F)		17°C
(63°F)		18°C
(64°F)		18°C
(64°F)		18°C
(65°F)

Compare climate in Ullong with other places

Compare temperature, precipitation, sunshine, UV index in Ullong, Indonesia with other places around the world.

Monthly average precipitation in Ullong, Indonesia

Ullong usually has the most precipitation in March, April and December, with an average of 30 rainy days and 1153 mm (45.4 inches) of precipitation per month. The driest months in Ullong are June, July and August. On average, 378 mm (14.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Ullong. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)739 (29.1)946 (37.2)1261 (49.7)1109 (43.7)689 (27.1)359 (14.1)400 (15.8)376 (14.8)431 (17.0)570 (22.5)838 (33.0)1089 (42.9)
Average precipitation days (≥ 1 mm)242830303028293028302931

Monthly sunshine hours in Ullong, Indonesia

The sunniest months in Ullong are August, September and October, when the sun shines an average of 9 hours 19 minutes a day. Least sunny months in Ullong: January, February and April receive an average of 8 hours 10 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Ullong. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours226246271262273270277290281287269264
Mean daily daylight hours12h 10m12h 8m12h 6m12h 3m12h 2m12h 2m12h 2m12h 3m12h 5m12h 7m12h 9m12h 11m

Solar UV radiation in Ullong, Indonesia

Ullong experiences the highest level of ultraviolet (UV) radiation in February, March and April, when the maximum UV index can reach values of 18 - 18, which corresponds to the Extreme category of sun exposure. June, July and November are in the Extreme exposure category. In these months, the maximum values of the UV index do not exceed 15. For more detailed information, check out our hourly Ullong UV Index data.

Average daily maximum UV levels by month for Ullong. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)161818181513131516161515