nomadseason

Monthly climate in Siabu, Indonesia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Siabu features a tropical rainforest climate (Af). Temperatures typically range between 23 °C (74 °F) and 24 °C (76 °F) through the year, but rarely can drop to 16 °C (62 °F) or can rise to as high as 32 °C (90 °F). The average annual precipitation amounts to about 3020 mm (118.9 inches) and receives 283 rainy days on the 1 mm (0.04 inches) threshold annually. Siabu enjoys an average of 3311 hours of sunshine throughout the year, and daylight varies from 12 hours 3 minutes to 12 hours 10 minutes per day.

Monthly average temperatures in Siabu, Indonesia

The warmest months in Siabu are April, May and June, with daily mean temperatures ranging from 24 to 24 °C (76 - 76 °F) throughout the day. The coldest temperatures usually occur in September, October and November, when daily mean temperatures range from 23 to 24 °C (74 - 75 °F) throughout the day. On average each year, Siabu experiences 322 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 Siabu. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum31°C
(88°F)		31°C
(89°F)		32°C
(90°F)		32°C
(89°F)		32°C
(90°F)		32°C
(89°F)		32°C
(89°F)		31°C
(89°F)		32°C
(90°F)		32°C
(90°F)		31°C
(88°F)		31°C
(88°F)
Mean maximum31°C
(87°F)		31°C
(88°F)		31°C
(89°F)		31°C
(89°F)		31°C
(89°F)		31°C
(87°F)		31°C
(87°F)		31°C
(88°F)		31°C
(87°F)		31°C
(88°F)		30°C
(87°F)		30°C
(87°F)
Average high28°C
(83°F)		29°C
(85°F)		29°C
(85°F)		29°C
(85°F)		29°C
(85°F)		29°C
(85°F)		28°C
(84°F)		28°C
(83°F)		28°C
(83°F)		28°C
(83°F)		28°C
(83°F)		28°C
(83°F)
Daily mean24°C
(75°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)		24°C
(75°F)		24°C
(75°F)		24°C
(75°F)		24°C
(75°F)		23°C
(74°F)		24°C
(75°F)
Average low20°C
(69°F)		21°C
(70°F)		21°C
(70°F)		21°C
(70°F)		21°C
(71°F)		21°C
(69°F)		20°C
(69°F)		20°C
(69°F)		20°C
(69°F)		20°C
(69°F)		21°C
(70°F)		21°C
(70°F)
Mean minimum18°C
(65°F)		19°C
(67°F)		19°C
(67°F)		20°C
(68°F)		20°C
(69°F)		19°C
(66°F)		19°C
(66°F)		19°C
(66°F)		19°C
(66°F)		19°C
(67°F)		20°C
(68°F)		19°C
(67°F)
Minimum16°C
(62°F)		19°C
(66°F)		17°C
(62°F)		19°C
(66°F)		19°C
(66°F)		18°C
(65°F)		18°C
(65°F)		18°C
(64°F)		17°C
(63°F)		19°C
(66°F)		19°C
(67°F)		18°C
(64°F)

Compare climate in Siabu with other places

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

Monthly average precipitation in Siabu, Indonesia

Siabu usually has the most precipitation in October, November and December, with an average of 25 rainy days and 333 mm (13.1 inches) of precipitation per month. The driest months in Siabu are January, February and June. On average, 171 mm (6.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Siabu. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)168 (6.6)166 (6.5)251 (9.9)303 (11.9)270 (10.6)179 (7.1)191 (7.5)214 (8.4)280 (11.0)315 (12.4)368 (14.5)315 (12.4)
Average precipitation days (≥ 1 mm)192025282618212227232727

Monthly sunshine hours in Siabu, Indonesia

The sunniest months in Siabu are March, July and August, when the sun shines an average of 9 hours 45 minutes a day. Least sunny months in Siabu: January, April and November receive an average of 7 hours 59 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Siabu. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours227279296263286294303307279271235266
Mean daily daylight hours12h 3m12h 4m12h 5m12h 7m12h 9m12h 10m12h 9m12h 7m12h 6m12h 4m12h 3m12h 3m

Solar UV radiation in Siabu, Indonesia

Siabu experiences the highest level of ultraviolet (UV) radiation in March, April and September, when the maximum UV index can reach values of 15 - 16, which corresponds to the Extreme category of sun exposure. June, July and December are in the Extreme exposure category. In these months, the maximum values of the UV index do not exceed 13. For more detailed information, check out our hourly Siabu UV Index data.

Average daily maximum UV levels by month for Siabu. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)151516161513131415151413