Climate guide for Surabaya, Indonesia

Surabaya in April

Weather, crowds & best time to visit

How to read the score (0–10)
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April · Indonesia

Best time to visit Surabaya in April Weather, crowds & prices

Weather in Surabaya in April

Average temperature 27°C, 241 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).

April score

3.1/10

Ranked #12 of 12 months

Full year for Surabaya
Avg temp
27°C
Rainfall
241 mm
Humidity
86%
Days with 6h+ sun
19
Crowd Density
Quiet / Uncrowded
Average Expenses
$ · Budget Friendly ($)

April in Surabaya scores 3.1/10 for sightseeing and cultural travel - ranked #12 of 12. Expect around 27°C, 241 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.

April in Surabaya — the hardest end of the year

Days in April average 27°C (80°F) and humidity near 86% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.

Expect monsoon-level rainfall at 241 mm: only about 19 days with 6+ hours of sunshine across the month, and stretches of heavy rain are normal.

That is 3.1/10 on the same scale — 12th of 12 months, versus 8.1/10 for the best month here.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.

Budget for low-season pricing, and crowds are light for this destination.

If your dates are flexible, August is materially better in Surabaya — 5 points higher on the same scale.

View all 12 months

Ranked by pure climate comfort

Score scale: 0.0 → 10.0Quiet / UncrowdedModerate CrowdsPeak Tourist Rush

Frequently asked

What is the weather like in Surabaya in April?
In April, Surabaya averages 27°C, 241 mm of rain, and about 19 days with 6+ hours of sunshine. Its climate-comfort score is 3.1/10.
Is April a good time to visit Surabaya?
April earns a 3.1/10 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 April?
Expect about 241 mm of rain in April. 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.