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Monthly climate in Astambul, Indonesia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Astambul features a tropical rainforest climate (Af). Temperatures typically range between 27 °C (80 °F) and 28 °C (83 °F) through the year, but rarely can drop to 21 °C (70 °F) or can rise to as high as 38 °C (100 °F). The average annual precipitation amounts to about 1964 mm (77.3 inches) and receives 247 rainy days on the 1 mm (0.04 inches) threshold annually. Astambul enjoys an average of 3189 hours of sunshine throughout the year, and daylight varies from 11 hours 55 minutes to 12 hours 17 minutes per day.

Monthly average temperatures in Astambul, Indonesia

The warmest months in Astambul are May, October and November, with daily mean temperatures ranging from 28 to 28 °C (82 - 83 °F) throughout the day. The coldest temperatures usually occur in January, July and December, when daily mean temperatures range from 27 to 27 °C (80 - 81 °F) throughout the day. On average each year, Astambul 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 Astambul. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum34°C
(93°F)		35°C
(95°F)		35°C
(95°F)		35°C
(95°F)		35°C
(95°F)		34°C
(93°F)		34°C
(93°F)		34°C
(94°F)		36°C
(96°F)		38°C
(100°F)		36°C
(98°F)		37°C
(98°F)
Mean maximum33°C
(93°F)		34°C
(93°F)		34°C
(93°F)		34°C
(94°F)		34°C
(94°F)		33°C
(92°F)		33°C
(92°F)		34°C
(93°F)		35°C
(95°F)		36°C
(96°F)		35°C
(96°F)		34°C
(94°F)
Average high31°C
(88°F)		31°C
(89°F)		31°C
(89°F)		32°C
(90°F)		32°C
(90°F)		31°C
(89°F)		31°C
(88°F)		32°C
(89°F)		32°C
(91°F)		33°C
(92°F)		32°C
(91°F)		31°C
(88°F)
Daily mean27°C
(80°F)		27°C
(81°F)		27°C
(81°F)		27°C
(82°F)		28°C
(82°F)		27°C
(81°F)		27°C
(80°F)		27°C
(81°F)		27°C
(82°F)		28°C
(83°F)		28°C
(82°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
(75°F)		24°C
(75°F)		24°C
(75°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)
Mean minimum23°C
(74°F)		23°C
(73°F)		23°C
(74°F)		23°C
(74°F)		24°C
(75°F)		23°C
(74°F)		22°C
(72°F)		22°C
(72°F)		22°C
(72°F)		23°C
(73°F)		23°C
(74°F)		23°C
(74°F)
Minimum23°C
(73°F)		22°C
(72°F)		22°C
(73°F)		23°C
(73°F)		23°C
(74°F)		22°C
(72°F)		21°C
(70°F)		21°C
(70°F)		22°C
(71°F)		23°C
(73°F)		22°C
(72°F)		23°C
(74°F)

Compare climate in Astambul with other places

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

Monthly average precipitation in Astambul, Indonesia

Astambul usually has the most precipitation in January, March and December, with an average of 26 rainy days and 262 mm (10.3 inches) of precipitation per month. The driest months in Astambul are July, August and September. On average, 66 mm (2.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Astambul. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)246 (9.7)214 (8.4)272 (10.7)215 (8.5)137 (5.4)103 (4.0)69 (2.7)57 (2.2)71 (2.8)96 (3.8)217 (8.5)266 (10.5)
Average precipitation days (≥ 1 mm)232428262118141212162429

Monthly sunshine hours in Astambul, Indonesia

The sunniest months in Astambul are May, July and August, when the sun shines an average of 9 hours 24 minutes a day. Least sunny months in Astambul: January, February and December receive an average of 7 hours 42 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Astambul. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours209243264263283275294296278280250248
Mean daily daylight hours12h 16m12h 12m12h 6m12h 1m11h 57m11h 55m11h 55m11h 59m12h 4m12h 10m12h 15m12h 17m

Solar UV radiation in Astambul, Indonesia

Astambul 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. June, July and August 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 Astambul UV Index data.

Average daily maximum UV levels by month for Astambul. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)141516151411121314151414