Semarang weather in December
In December, Semarang has an average high of 30 °C86 °F and an average low of 25 °C77 °F, with about 273 mm11 in of precipitation. It is the 6th warmest month of the year and ranks 3rd for precipitation.
How December compares with other months
Compared with November, December is 1 °C1.7 °F cooler on average and wetter by 68 mm2.7 in. Compared with January, December is about the same temperature and drier by 81 mm3.2 in. Daylight lasts about 12.5 hours around the middle of the month. Average relative humidity is 83% and the average cloud amount 94%.
Is December a good time to visit Semarang?
December is not among the most comfortable months by our comfort score: it is hot (average high 30 °C86 °F), it is fairly wet (273 mm11 in) and it is humid (83%). The most comfortable months in Semarang are July.
What to wear in December
For Semarang in December, pack light summer clothes such as T-shirts, shorts or light dresses and a good rain jacket or umbrella and quick-drying shoes.
December in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Semarang | 3086 | 2577 | 27311 |
| Ungaran | 2882 | 2373 | 27311 |
| Jepara | 2984 | 2781 | 29512 |
| Magelang | 2882 | 2272 | 31312 |
| Pati | 3086 | 2475 | 28311 |
| Surakarta | 3086 | 2374 | 28111 |
| Pekalongan | 3086 | 2476 | 30212 |
| Yogyakarta | 2983 | 2476 | 29412 |
| Purwokerto | 2984 | 2374 | 35414 |
Nearby places that are more than 1 °C1.8 °F cooler: Ungaran, Magelang and Purwokerto.
Other months in Semarang
- January29 °C85 °F / 25 °C76 °F
- February29 °C84 °F / 25 °C76 °F
- March30 °C85 °F / 25 °C77 °F
- April30 °C86 °F / 25 °C77 °F
- May30 °C86 °F / 24 °C76 °F
- June30 °C87 °F / 23 °C74 °F
- July31 °C88 °F / 22 °C72 °F
- August33 °C92 °F / 23 °C73 °F
- September35 °C95 °F / 24 °C74 °F
- October34 °C93 °F / 25 °C76 °F
- November32 °C89 °F / 25 °C77 °F
- December30 °C86 °F / 25 °C77 °F
Frequently asked questions
How warm is Semarang in December?
In December the average high in Semarang is 30 °C (86 °F) and the average low is 25 °C (77 °F).
Does it rain a lot in Semarang in December?
On average about 273 mm (10.8 in) of precipitation falls in December; it ranks 3rd of the 12 months.
Is December the warmest month in Semarang?
No. The warmest month in Semarang is September, with an average high of 35 °C (95 °F). The coldest month is July, with an average low of 22 °C (72 °F).
How long is the day in Semarang in December?
In the middle of December the day in Semarang lasts about 12.5 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Semarang in December?
The average relative humidity in December is about 83%. Combined with warm days, it can feel muggy.
How cloudy is Semarang in December?
On average about 94% of the sky is covered by cloud in December. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 138 m, while Semarang lies at about 18 m. Temperatures on this page were therefore adjusted by +0.8 °C1.4 °F using the standard lapse rate of 6.5 °C per 1,000 m.