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Monthly climate in Roioen, Indonesia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Roioen features a tropical savanna climate (Aw). Temperatures typically range between 27 °C (81 °F) and 30 °C (85 °F) through the year, but rarely can drop to 23 °C (73 °F) or can rise to as high as 34 °C (94 °F). The average annual precipitation amounts to about 1077 mm (42.4 inches) and receives 126 rainy days on the 1 mm (0.04 inches) threshold annually. Roioen enjoys an average of 3581 hours of sunshine throughout the year, and daylight varies from 11 hours 29 minutes to 12 hours 43 minutes per day.

Monthly average temperatures in Roioen, Indonesia

The warmest months in Roioen are October, November and December, with daily mean temperatures ranging from 29 to 30 °C (84 - 85 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 27 to 27 °C (81 - 82 °F) throughout the day. On average each year, Roioen experiences 329 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 Roioen. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum33°C
(91°F)		32°C
(90°F)		33°C
(91°F)		33°C
(92°F)		33°C
(92°F)		31°C
(89°F)		31°C
(87°F)		31°C
(88°F)		33°C
(91°F)		33°C
(92°F)		34°C
(93°F)		34°C
(94°F)
Mean maximum32°C
(89°F)		31°C
(88°F)		32°C
(90°F)		32°C
(90°F)		32°C
(90°F)		31°C
(88°F)		30°C
(87°F)		30°C
(87°F)		31°C
(89°F)		33°C
(91°F)		33°C
(92°F)		33°C
(92°F)
Average high30°C
(86°F)		30°C
(86°F)		30°C
(87°F)		31°C
(88°F)		31°C
(88°F)		30°C
(86°F)		29°C
(85°F)		29°C
(85°F)		30°C
(87°F)		31°C
(89°F)		32°C
(90°F)		31°C
(88°F)
Daily mean28°C
(82°F)		28°C
(82°F)		28°C
(83°F)		29°C
(84°F)		28°C
(83°F)		27°C
(82°F)		27°C
(81°F)		27°C
(81°F)		28°C
(82°F)		29°C
(84°F)		30°C
(85°F)		29°C
(84°F)
Average low26°C
(80°F)		26°C
(79°F)		26°C
(79°F)		26°C
(80°F)		27°C
(80°F)		26°C
(79°F)		25°C
(77°F)		25°C
(77°F)		25°C
(78°F)		26°C
(80°F)		27°C
(81°F)		27°C
(81°F)
Mean minimum25°C
(78°F)		25°C
(77°F)		25°C
(77°F)		25°C
(78°F)		25°C
(78°F)		25°C
(77°F)		23°C
(75°F)		24°C
(75°F)		24°C
(76°F)		25°C
(77°F)		26°C
(79°F)		25°C
(78°F)
Minimum25°C
(77°F)		24°C
(76°F)		25°C
(77°F)		24°C
(76°F)		25°C
(76°F)		23°C
(74°F)		23°C
(73°F)		23°C
(74°F)		23°C
(74°F)		24°C
(76°F)		26°C
(78°F)		25°C
(77°F)

Compare climate in Roioen with other places

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

Monthly average precipitation in Roioen, Indonesia

Roioen usually has the most precipitation in January, February and March, with an average of 24 rainy days and 223 mm (8.8 inches) of precipitation per month. The driest months in Roioen are July, August and September. On average, 4 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Roioen. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)257 (10.1)219 (8.6)194 (7.6)123 (4.8)24 (0.9)7 (0.3)4 (0.1)5 (0.2)2 (0.1)8 (0.3)57 (2.2)179 (7.1)
Average precipitation days (≥ 1 mm)23242696111021221

Monthly sunshine hours in Roioen, Indonesia

The sunniest months in Roioen are August, October and November, when the sun shines an average of 10 hours 28 minutes a day. Least sunny months in Roioen: January, February and April receive an average of 8 hours 47 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Roioen. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours231267304292304292306313312331319304
Mean daily daylight hours12h 39m12h 25m12h 8m11h 50m11h 36m11h 29m11h 32m11h 45m12h 1m12h 19m12h 35m12h 43m

Solar UV radiation in Roioen, Indonesia

Roioen experiences the highest level of ultraviolet (UV) radiation in February, March and September, when the maximum UV index can reach values of 15 - 16, which corresponds to the Extreme category of sun exposure. May, June and July are in the Very High / Extreme exposure category. In these months, the maximum values of the UV index do not exceed 12. For more detailed information, check out our hourly Roioen UV Index data.

Average daily maximum UV levels by month for Roioen. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)151616141210111315151514