This is a climate-model estimate, not a measurement: we have no measured water temperature for rivers, lakes and reservoirs yet. Real measurements are available for seas only.
Water bodies in Surabaya 🌊
Map of water bodies in Surabaya
Water temperature in Surabaya for a month
There is no exact monthly water forecast — the reference is the climate normal: in summer the water warms to about +22°. The monthly normal is below.
Monthly water temperature in Surabaya 🗓️
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| +22 | +22 | +20 | +20 | +21 | +22 | +22 | +22 | +25 | +25 | +24 | +22 |
Climate normal (model estimate).
Water temperature archive in Surabaya on this day
| Year | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
|---|---|---|---|---|---|---|---|---|---|---|
| Water | +29° | +29° | +28° | +29° | +30° | +30° | +30° | +29° | +28° | +28° |
Climate normal (model estimate for this date), not a measurement archive.
When to swim in Surabaya 🏖️
Where else to swim nearby 🏝️
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FAQ about water in Surabaya ❓
What is the water temperature in Surabaya now?
Now +28° — Warm water.
When to swim in Surabaya?
Comfortable season — from January to December.
When is the water in Surabaya warmest?
Warmest in September — up to +25°.
What bodies of water are there in Surabaya?
Java Sea.
Water temperature in Surabaya — in detail
A summary page of water temperature across all bodies of water in Surabaya: Java Sea. Now about +28°. For seas the temperature is measured SST; for rivers and lakes it is a climate estimate.