The hottest month in New Caledonia is February when the average maximum temperature is 28°, average temperature is 25° and average minimum temperature is 22°.
The coolest month in New Caledonia is July when the average maximum temperature is 23°, average temperature is 20° and average minimum temperature is 16°.
The longest days in New Caledonia are in January, with an average of 13.4 hours of daylight per day. June has the shortest days with an average of 10.8 hours of daylight per day.
The sunniest days in New Caledonia are in December which has the most hours of sunshine per day with an average of 6.3 hours of sunshine per day, making it a quite sunny month with some cloud cover. May has the least sunshine with an average of 4 hours of sunshine per day, making it not a particularly sunny month.
The ultraviolet index is the highest in January when it reaches 15.5 and lowest in June when it reaches 5.8.
An ultraviolet index reading above 11 indicates an extreme risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 10 minutes. Take all precautions because unprotected skin and eyes can burn in minutes. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.
The warmest sea water temperatures in New Caledonia are found in February when they peak at 28° and lowest in August when they dip to 22°.
The sea is best for swimming between December and May when the temperature is above 25° which is warm and pleasant for relaxing and swimming for long periods.
The wettest month in New Caledonia is July with 11.7cm of rain and March has the most days of rain with 20.8 days with some rain, a very wet time to visit the beach.
The driest month in New Caledonia is October with 4.4cm of rain and November has the fewest days of rain with 10.9 days with some rain, a slightly wet time to visit the beach.
The most humid month in New Caledonia is March with a dew point (an indicator of humidity) of 22° which is very humid and quite uncomfortable for most unless you are on a beach. At night you would most likely require a fan.
The least humid month in New Caledonia is July with a dew point of 17° which is OK for most but slightly uncomfortable for some.
The most windy month in New Caledonia is January when the average maximum windspeed is 27kmh and the average wind speed is 18kmh.
The least windy month in New Caledonia is September when the average maximum windspeed is 19kmh and the average wind speed is 11kmh.