Semarang Weather in January
During January, Semarang experiences very high daytime temperatures of 30°C (86°F) and cooler nights around 24°C (75°F). January sits within the rainy season, so expect regular and often heavy rainfall.
Rainfall in Semarang in January
As part of the rainy season, Semarang sees around 19 days of rain in January, with an average of 416 mm (16 in). Showers during the rainy season tend to be heavy and can come down intensely. An umbrella is often not enough, so a poncho or waterproof jacket is a better choice.
Temperature in Semarang in January
Temperatures in Semarang in January top out at 30°C (86°F) and drop to 24°C (75°F) overnight. Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. At 24°C (75°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference.January in Semarang has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Indonesia, check out our Semarang's climate page.
Semarang Temperature in January
Min Temperature
24°C (75°F)
Max Temperature
30°C (86°F)
Chance of Rain
62%
Precipitation
416 mm (16 in)
Rainy days
19 days
Daily Historical Temperatures
49-year average (1976-2026)
Based on our historical records, temperatures in Semarang typically stay consistent throughout January, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in January
Daily Historical Precipitation
49-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for Semarang in January
Browse day-by-day weather records for Semarang spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Semarang historical weather extremes in January
Our historical data for Semarang spans 2004 to 2025, revealing these weather extremes.
- The warmest day in January was on January 1, 2024, with a maximum of 35°C (95°F).
- On January 28, 2006, Semarang saw its coldest January day with temperatures maxing out at 25°C (77°F).
- The coldest night in January in Semarang was on January 8, 2007, with a minimum of 21°C (70°F).
- The heaviest January precipitation occurred on January 10, 2005, when 200 mm (7.9 in) of precipitation fell.
Best Places in Indonesia in January
Find out more about the weather in Indonesia and which places have the best travel conditions in this month. See all of Indonesia in January →
perfect weather
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What to Wear in Semarang in January
Warm but pleasant conditions in Semarang in January. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions.What To Do in Semarang in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Indonesia, check out our Semarang's climate page.
See the full Semarang climate overview or explore weather in Indonesia.
