December in Sibu brings very high temperatures, with highs of 31°C (88°F) and nights dropping to 23°C (73°F). It's the rainiest month of the year, so come prepared with waterproof gear.
To explore more travel options, our weather planner can help you discover destinations worldwide.
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Pick a month to see the average temperature, rainfall and sunshine in Sibu - and find the best time to visit.
49-year average (1976-2025)
Based on our historical records, temperatures in Sibu typically stay consistent throughout December, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 23°C (73°F).
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Sibu spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
According to our 42 years of weather records for Sibu, the following extremes were recorded between 1983 and 2025.
Find out more about the weather in Malaysia and which places have the best travel conditions in this month. See all of Malaysia in December →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Warm temperatures in December make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! It won't hurt to bring your sunglasses along, as you'll see some sunny periods.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
See the full Sibu climate overview or explore weather in Malaysia.
Where to go in December - average daytime high across popular destinations.
Kuala Lumpur
32°C (90°F) Kuching31°C (88°F) Pantai Cenang
31°C (88°F) Ipoh30°C (86°F) Johor Bahru30°C (86°F) Melaka30°C (86°F) George Town31°C (88°F) Kota Kinabalu29°C (84°F) Need travel inspiration? Check out our bucket list articles and be inspired.
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