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 Ondarroa 🌊
Map of water bodies in Ondarroa
Water temperature in Ondarroa 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 Ondarroa 🗓️
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| +7 | +7 | +6 | +7 | +10 | +13 | +15 | +15 | +15 | +13 | +10 | +8 |
Climate normal (model estimate).
Water temperature archive in Ondarroa on this day
| Year | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
|---|---|---|---|---|---|---|---|---|---|---|
| Water | +27° | +26° | +26° | +26° | +27° | +27° | +27° | +26° | +26° | +26° |
Climate normal (model estimate for this date), not a measurement archive.
Where else to swim nearby 🏝️
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FAQ about water in Ondarroa ❓
What is the water temperature in Ondarroa now?
Now +26° — Warm water.
When is the water in Ondarroa warmest?
Warmest in July — up to +15°.
What bodies of water are there in Ondarroa?
Celtic Sea.
Water temperature in Ondarroa — in detail
A summary page of water temperature across all bodies of water in Ondarroa: Celtic Sea. Now about +26°. For seas the temperature is measured SST; for rivers and lakes it is a climate estimate.