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Monthly climate in Lamasi, Indonesia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Lamasi features a tropical rainforest climate (Af). Temperatures typically range between 25 °C (77 °F) and 27 °C (81 °F) through the year, but rarely can drop to 17 °C (63 °F) or can rise to as high as 36 °C (97 °F). The average annual precipitation amounts to about 3218 mm (126.7 inches) and receives 267 rainy days on the 1 mm (0.04 inches) threshold annually. Lamasi enjoys an average of 3227 hours of sunshine throughout the year, and daylight varies from 11 hours 57 minutes to 12 hours 16 minutes per day.

Monthly average temperatures in Lamasi, Indonesia

The warmest months in Lamasi are October, November and December, with daily mean temperatures ranging from 27 to 27 °C (80 - 81 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 25 to 25 °C (77 - 78 °F) throughout the day. On average each year, Lamasi 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 Lamasi. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum34°C
(93°F)		34°C
(94°F)		33°C
(92°F)		33°C
(91°F)		32°C
(91°F)		32°C
(90°F)		31°C
(89°F)		32°C
(91°F)		33°C
(91°F)		35°C
(96°F)		35°C
(96°F)		36°C
(97°F)
Mean maximum33°C
(91°F)		33°C
(91°F)		32°C
(91°F)		32°C
(90°F)		32°C
(89°F)		31°C
(88°F)		31°C
(88°F)		32°C
(89°F)		32°C
(90°F)		34°C
(93°F)		34°C
(93°F)		33°C
(92°F)
Average high31°C
(87°F)		31°C
(87°F)		30°C
(87°F)		30°C
(86°F)		30°C
(86°F)		29°C
(85°F)		29°C
(84°F)		30°C
(85°F)		30°C
(87°F)		32°C
(89°F)		32°C
(90°F)		31°C
(88°F)
Daily mean26°C
(80°F)		26°C
(79°F)		26°C
(79°F)		26°C
(79°F)		26°C
(79°F)		25°C
(78°F)		25°C
(77°F)		25°C
(78°F)		26°C
(78°F)		27°C
(80°F)		27°C
(81°F)		27°C
(80°F)
Average low23°C
(73°F)		23°C
(74°F)		23°C
(73°F)		23°C
(73°F)		23°C
(73°F)		22°C
(72°F)		22°C
(71°F)		22°C
(71°F)		21°C
(71°F)		22°C
(72°F)		23°C
(73°F)		23°C
(74°F)
Mean minimum21°C
(71°F)		22°C
(71°F)		21°C
(71°F)		21°C
(71°F)		21°C
(71°F)		21°C
(70°F)		19°C
(67°F)		19°C
(67°F)		18°C
(65°F)		20°C
(68°F)		21°C
(70°F)		21°C
(71°F)
Minimum21°C
(69°F)		20°C
(69°F)		21°C
(70°F)		21°C
(70°F)		21°C
(70°F)		20°C
(68°F)		19°C
(66°F)		18°C
(65°F)		17°C
(63°F)		19°C
(67°F)		20°C
(68°F)		20°C
(69°F)

Compare climate in Lamasi with other places

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

Monthly average precipitation in Lamasi, Indonesia

Lamasi usually has the most precipitation in February, March and April, with an average of 28 rainy days and 454 mm (17.9 inches) of precipitation per month. The driest months in Lamasi are August, September and October. On average, 108 mm (4.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Lamasi. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)360 (14.2)384 (15.1)530 (20.9)447 (17.6)256 (10.1)198 (7.8)158 (6.2)132 (5.2)91 (3.6)100 (3.9)232 (9.1)330 (13.0)
Average precipitation days (≥ 1 mm)252730272622231712131827

Monthly sunshine hours in Lamasi, Indonesia

The sunniest months in Lamasi are August, September and October, when the sun shines an average of 9 hours 42 minutes a day. Least sunny months in Lamasi: January, February and March receive an average of 7 hours 43 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Lamasi. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours209235257261278268283299290302277260
Mean daily daylight hours12h 14m12h 11m12h 6m12h 1m11h 58m11h 57m11h 57m12h 0m12h 4m12h 9m12h 13m12h 16m

Solar UV radiation in Lamasi, Indonesia

Lamasi 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 November are in the Extreme exposure category. In these months, the maximum values of the UV index do not exceed 14. For more detailed information, check out our hourly Lamasi UV Index data.

Average daily maximum UV levels by month for Lamasi. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)151616151412121415151414