January · Indonesia
Best time to visit Surabaya in January Weather, crowds & prices
Weather in Surabaya in January
Average temperature 26°C, 313 mm of rain, about 20 days with 6+ hours of sunshine and 87% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
January score
3.4/10
Ranked #8 of 12 months
- Avg temp
- 26°C
- Rainfall
- 313 mm
- Humidity
- 87%
- Days with 6h+ sun
- 20
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
January in Surabaya scores 3.4/10 for sightseeing and cultural travel - ranked #8 of 12. Expect around 26°C, 313 mm of rain, and roughly 20 days with 6+ hours of sunshine this month.
Surabaya pairs Indonesia's busiest port with colonial lanes, markets and a shark-and-crocodile landmark.
January in Surabaya — the hardest end of the year
At 26°C (78°F) this is comfortable city weather in January, with sightseeing easiest before lunch and after the afternoon peak.
This is the year's wettest stretch at 313 mm, but with about 20 days with 6+ hours of sunshine it is not a total loss; an indoor fallback covers the risk.
That is 3.4/10 on the same scale — 8th of 12 months, versus 8.1/10 for the best month here.
Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella.
Expect low-season pricing, and crowds are light for this destination.
If your dates are flexible, August is materially better in Surabaya — 4.7 points higher on the same scale.
Frequently asked
- What is the weather like in Surabaya in January?
- In January, Surabaya averages 26°C, 313 mm of rain, and about 20 days with 6+ hours of sunshine. Its climate-comfort score is 3.4/10.
- Is January a good time to visit Surabaya?
- January earns a 3.4/10 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 January?
- Expect about 313 mm of rain in January. Average humidity is 87% and there are about 20 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.