December weather forecast
Johor Bahru, Malaysia

December in Johor Bahru signifies the commencement of the city's transition into its high moisture phase. Unlike the preceding month, the change manifests in the form of a slightly lower temperature and an increase in precipitation. Maintaining a consistent UV index of 12, it registers the highest rainfall year of 245mm (9.65"), signalling a productive wrap for the year. Extended warm sea temperatures foster ideal conditions for water sports enthusiasts. The preserved daylight duration counterbalances the upswing in precipitation, making this month's weather favourable for enthusiasts seeking warm climatic conditions.

Temperature

December is the coldest month, exhibiting average temperatures of 30.6°C (87.1°F) at the peak and 22.4°C (72.3°F) at the base.

Rainfall

December is the month with the most rainfall. Rain falls for 15 days and accumulates 245mm (9.65") of precipitation.

Sea temperature

In Johor Bahru, Malaysia, the average seawater temperature in December is 29°C (84.2°F).
Note: Surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as excellent and extremely agreeable for enduring enjoyment in water activities.

Daylight

With an average of 12h and 0min of daylight, December has the shortest days of the year.
On the first day of December in Johor Bahru, sunrise is at 6:52 am and sunset at 6:55 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 7:09 pm +08.

Sunshine

With an average of 4h of sunshine, December has the least sunshine of the year.

UV index

The months with the highest UV index in Johor Bahru are January through May, August through December, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an ultimate health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 12 in December transforms into the following instructions:
Employ every precaution of importance, unprotected skin and eyes could burn within moments. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. After a swim or outdoor exercise, one should liberally reapply broad-spectrum sunscreen with a sun protection factor of 30 or higher. Take warning! Reflective sand and water surfaces intensify the Sun's UV rays.