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Monthly climate in Houailou, New Caledonia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Houailou features a tropical rainforest climate (Af). Temperatures typically range between 19 °C (66 °F) and 25 °C (77 °F) through the year, but rarely can drop to 12 °C (54 °F) or can rise to as high as 31 °C (88 °F). The average annual precipitation amounts to about 1667 mm (65.6 inches) and receives 190 rainy days on the 1 mm (0.04 inches) threshold annually. Houailou enjoys an average of 3382 hours of sunshine throughout the year, and daylight varies from 10 hours 50 minutes to 13 hours 23 minutes per day.

Monthly average temperatures in Houailou, New Caledonia

The warmest months in Houailou are January, February and March, with daily mean temperatures ranging from 25 to 25 °C (77 - 77 °F) throughout the day. The coldest temperatures usually occur in July, August and September, when daily mean temperatures range from 19 to 20 °C (66 - 68 °F) throughout the day. On average each year, Houailou experiences 187 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 Houailou. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum30°C
(86°F)		31°C
(88°F)		30°C
(87°F)		30°C
(86°F)		28°C
(82°F)		27°C
(81°F)		26°C
(79°F)		26°C
(79°F)		27°C
(81°F)		28°C
(83°F)		29°C
(85°F)		30°C
(86°F)
Mean maximum29°C
(85°F)		30°C
(86°F)		29°C
(85°F)		28°C
(83°F)		27°C
(80°F)		25°C
(78°F)		24°C
(76°F)		25°C
(78°F)		26°C
(79°F)		27°C
(81°F)		28°C
(83°F)		29°C
(84°F)
Average high28°C
(82°F)		28°C
(82°F)		27°C
(81°F)		26°C
(79°F)		24°C
(76°F)		23°C
(73°F)		22°C
(72°F)		23°C
(73°F)		23°C
(75°F)		25°C
(78°F)		26°C
(79°F)		27°C
(81°F)
Daily mean25°C
(77°F)		25°C
(77°F)		25°C
(77°F)		23°C
(74°F)		22°C
(71°F)		20°C
(68°F)		19°C
(66°F)		19°C
(67°F)		20°C
(68°F)		22°C
(71°F)		23°C
(73°F)		24°C
(76°F)
Average low22°C
(72°F)		23°C
(73°F)		22°C
(72°F)		21°C
(70°F)		19°C
(67°F)		17°C
(64°F)		16°C
(61°F)		16°C
(61°F)		16°C
(62°F)		19°C
(66°F)		19°C
(67°F)		21°C
(71°F)
Mean minimum20°C
(69°F)		21°C
(69°F)		20°C
(68°F)		18°C
(64°F)		16°C
(61°F)		16°C
(61°F)		13°C
(56°F)		13°C
(56°F)		14°C
(57°F)		16°C
(60°F)		16°C
(61°F)		18°C
(65°F)
Minimum18°C
(66°F)		19°C
(66°F)		19°C
(66°F)		16°C
(61°F)		15°C
(59°F)		14°C
(58°F)		12°C
(54°F)		12°C
(54°F)		13°C
(56°F)		14°C
(58°F)		15°C
(60°F)		18°C
(65°F)

Compare climate in Houailou with other places

Compare temperature, precipitation, sunshine, UV index in Houailou, New Caledonia with other places around the world.

Monthly average precipitation in Houailou, New Caledonia

Houailou usually has the most precipitation in February, April and December, with an average of 22 rainy days and 230 mm (9.1 inches) of precipitation per month. The driest months in Houailou are June, July and September. On average, 48 mm (1.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Houailou. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)210 (8.3)246 (9.7)202 (7.9)230 (9.1)111 (4.4)44 (1.7)58 (2.3)76 (3.0)41 (1.6)146 (5.8)89 (3.5)216 (8.5)
Average precipitation days (≥ 1 mm)17222523169997141623

Monthly sunshine hours in Houailou, New Caledonia

The sunniest months in Houailou are October, November and December, when the sun shines an average of 10 hours 19 minutes a day. Least sunny months in Houailou: January, May and June receive an average of 8 hours 9 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Houailou. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours254288294268259236265276287312318318
Mean daily daylight hours13h 15m12h 47m12h 11m11h 34m11h 5m10h 50m10h 57m11h 23m11h 57m12h 34m13h 6m13h 23m

Solar UV radiation in Houailou, New Caledonia

Houailou experiences the highest level of ultraviolet (UV) radiation in January, February and December, when the maximum UV index can reach values of 16 - 16, which corresponds to the Extreme category of sun exposure. May, June and July are in the High / Very High exposure category. In these months, the maximum values of the UV index do not exceed 9. For more detailed information, check out our hourly Houailou UV Index data.

Average daily maximum UV levels by month for Houailou. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)161615129781012131516