Water temperature in Alotau / Gerni today
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.
Bite in Alotau / Gerni today — good 🎣
Pressure is steady, water +27° — most active: horse mackerel and mullet. Forecast by fish species and for the week ahead.
Bite forecast →
Water bodies in Alotau / Gerni 🌊
Map of water bodies in Alotau / Gerni
Water temperature in Alotau / Gerni for a month
There is no exact monthly water forecast — the reference is the climate normal: in summer the water warms to about +15°. The monthly normal is below.
Monthly water temperature in Alotau / Gerni 🗓️
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| +23 | +23 | +20 | +18 | +16 | +15 | +14 | +15 | +19 | +21 | +22 | +22 |
Climate normal (model estimate).
Water temperature archive in Alotau / Gerni on this day
| Year | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
|---|---|---|---|---|---|---|---|---|---|---|
| Water | +28° | +27° | +27° | +27° | +28° | +28° | +28° | +27° | +27° | +27° |
Climate normal (model estimate for this date), not a measurement archive.
When to swim in Alotau / Gerni 🏖️
Where else to swim nearby 🏝️
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FAQ about water in Alotau / Gerni ❓
What is the water temperature in Alotau / Gerni now?
Now +27° — Warm water.
When to swim in Alotau / Gerni?
Comfortable season — from January to December.
When is the water in Alotau / Gerni warmest?
Warmest in January — up to +23°.
What bodies of water are there in Alotau / Gerni?
Coral Sea.
Water temperature in Alotau / Gerni — in detail
A summary page of water temperature across all bodies of water in Alotau / Gerni: Coral Sea. Now about +27°. For seas the temperature is measured SST; for rivers and lakes it is a climate estimate.