January remains in the wettest quarter of the year in
Sibu, characterized by significant rainfall encompassing 19 days on average. Comparatively, the subsequent month of
February experiences a reduction of rainfall while cooler temperatures follow in
March. The city is fringed with lush greenery, made vibrant by the steady rainfall of 368mm (14.49") during January. Consequently, this environment makes it conducive for nature-inspired activities. Dress for a tropical climate in January, with temperatures ranging from 22.6°C (72.7°F) at night to a quite humid 30.6°C (87.1°F) during the day.
Temperature
In January, Sibu's weather conditions record an average high-temperature of a still hot 30.6°C (87.1°F), demonstrating little divergence from the preceding month. The average temperature during January nights dips to an agreeable 22.6°C (72.7°F).
Rainfall
The month with the most rainfall in Sibu is January, when the rain falls for 19 days and typically aggregates up to 368mm (14.49") of precipitation.
Daylight
In January, the average length of the day is 12h and 1min.
On the first day of the month, sunrise is at 6:36 am and sunset at 6:35 pm. On the last day of January, in Sibu, sunrise is at 6:45 am and sunset at 6:46 pm +08.
Sunshine
January has the least sunshine of the year in Sibu,
Malaysia, with an average of 4.2h of sunshine.
UV index
The months with the highest UV index in Sibu are January through
May,
July through
December, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an excessive health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In January, the average maximum UV index of 12 translates into the following recommendations:
Take every vital safeguard, as unprotected skin and eyes may suffer burns rapidly. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Despite the overcast weather, sunscreen with SPF of at least 30 should be applied liberally and reapplied often, particularly after swimming or an outdoor workout.