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Monthly climate in Siak Sri Indrapura, Indonesia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Siak Sri Indrapura features a tropical rainforest climate (Af). Temperatures typically range between 27 °C (81 °F) and 28 °C (82 °F) through the year, but rarely can drop to 19 °C (67 °F) or can rise to as high as 35 °C (96 °F). The average annual precipitation amounts to about 2401 mm (94.5 inches) and receives 280 rainy days on the 1 mm (0.04 inches) threshold annually. Siak Sri Indrapura enjoys an average of 3311 hours of sunshine throughout the year, and daylight varies from 12 hours 4 minutes to 12 hours 9 minutes per day.

Monthly average temperatures in Siak Sri Indrapura, Indonesia

The warmest months in Siak Sri Indrapura are May, June and August, with daily mean temperatures ranging from 27 to 28 °C (82 - 82 °F) throughout the day. The coldest temperatures usually occur in January, November and December, when daily mean temperatures range from 27 to 27 °C (81 - 81 °F) throughout the day. On average each year, Siak Sri Indrapura 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 Siak Sri Indrapura. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum34°C
(94°F)		35°C
(96°F)		35°C
(95°F)		34°C
(94°F)		35°C
(96°F)		34°C
(94°F)		34°C
(94°F)		35°C
(95°F)		34°C
(94°F)		35°C
(96°F)		35°C
(95°F)		34°C
(94°F)
Mean maximum33°C
(92°F)		34°C
(93°F)		34°C
(94°F)		34°C
(94°F)		34°C
(94°F)		34°C
(93°F)		34°C
(93°F)		34°C
(94°F)		34°C
(93°F)		35°C
(94°F)		34°C
(93°F)		33°C
(92°F)
Average high31°C
(88°F)		31°C
(89°F)		32°C
(90°F)		32°C
(90°F)		32°C
(90°F)		32°C
(89°F)		32°C
(90°F)		32°C
(90°F)		32°C
(89°F)		32°C
(90°F)		31°C
(89°F)		31°C
(88°F)
Daily mean27°C
(81°F)		27°C
(81°F)		27°C
(81°F)		27°C
(82°F)		28°C
(82°F)		27°C
(82°F)		27°C
(82°F)		27°C
(82°F)		27°C
(81°F)		27°C
(81°F)		27°C
(81°F)		27°C
(81°F)
Average low24°C
(76°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)		25°C
(77°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)		24°C
(75°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)
Mean minimum22°C
(72°F)		23°C
(73°F)		23°C
(74°F)		23°C
(74°F)		23°C
(74°F)		23°C
(74°F)		23°C
(73°F)		23°C
(73°F)		23°C
(73°F)		23°C
(73°F)		23°C
(74°F)		23°C
(74°F)
Minimum19°C
(67°F)		22°C
(72°F)		22°C
(72°F)		23°C
(73°F)		22°C
(73°F)		22°C
(73°F)		22°C
(72°F)		22°C
(72°F)		23°C
(73°F)		22°C
(73°F)		23°C
(73°F)		23°C
(74°F)

Compare climate in Siak Sri Indrapura with other places

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

Monthly average precipitation in Siak Sri Indrapura, Indonesia

Siak Sri Indrapura usually has the most precipitation in March, November and December, with an average of 26 rainy days and 275 mm (10.8 inches) of precipitation per month. The driest months in Siak Sri Indrapura are February, July and August. On average, 126 mm (4.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Siak Sri Indrapura. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)149 (5.9)127 (5.0)247 (9.7)244 (9.6)223 (8.8)166 (6.5)116 (4.6)134 (5.3)187 (7.4)231 (9.1)329 (13.0)248 (9.8)
Average precipitation days (≥ 1 mm)191826272722172125242826

Monthly sunshine hours in Siak Sri Indrapura, Indonesia

The sunniest months in Siak Sri Indrapura are March, July and August, when the sun shines an average of 9 hours 44 minutes a day. Least sunny months in Siak Sri Indrapura: January, November and December receive an average of 7 hours 53 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Siak Sri Indrapura. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours223289301269285281304299278275238264
Mean daily daylight hours12h 4m12h 4m12h 5m12h 6m12h 8m12h 9m12h 8m12h 7m12h 5m12h 4m12h 4m12h 4m

Solar UV radiation in Siak Sri Indrapura, Indonesia

Siak Sri Indrapura experiences the highest level of ultraviolet (UV) radiation in February, March and April, when the maximum UV index can reach values of 15 - 16, which corresponds to the Extreme category of sun exposure. January, June and July 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 Siak Sri Indrapura UV Index data.

Average daily maximum UV levels by month for Siak Sri Indrapura. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)131516151412121414141313