December · Indonesia
Best time to visit Surabaya in December Weather, crowds & prices
Weather in Surabaya in December
Average temperature 26°C, 513 mm of rain, about 19 days with 6+ hours of sunshine and 86% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
3.2/10
Ranked #11 of 12 months
- Avg temp
- 26°C
- Rainfall
- 513 mm
- Humidity
- 86%
- Days with 6h+ sun
- 19
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
December in Surabaya scores 3.2/10 for sightseeing and cultural travel - ranked #11 of 12. Expect around 26°C, 513 mm of rain, and roughly 19 days with 6+ hours of sunshine this month.
Surabaya pairs Indonesia's busiest port with colonial lanes, markets and a shark-and-crocodile landmark.
December in Surabaya: expect compromises
December averages 26°C (79°F) and humidity near 86%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
513 mm of rain puts this in monsoon territory — about 19 days with 6+ hours of sunshine across the whole month, and multi-day washouts are normal.
It scores 3.2/10 here, 11th of 12 months, against 8.1/10 in the destination's best month.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
Plan for low-season pricing, with crowds are light for this destination.
Flexible dates? August scores 4.9 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Surabaya in December?
- In December, Surabaya averages 26°C, 513 mm of rain, and about 19 days with 6+ hours of sunshine. Its climate-comfort score is 3.2/10.
- Is December a good time to visit Surabaya?
- December earns a 3.2/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Surabaya in December?
- Expect about 513 mm of rain in December. Average humidity is 86% and there are about 19 days with 6+ hours of sunshine.
Curated in Surabaya
Tickets & experiences
Things to do in Surabaya
Surabaya, Indonesia. Live activities and tours from GetYourGuide, matched to this destination.