Home / San Sebastian / Water temperature
Water temperature in San Sebastian today
by 1 water bodies
+25°
Warm water
Celtic Sea
Кельтское море🌊 wave 0.4 m
Warm water. Now +25°.
Bite in San Sebastian today — good 🎣
Pressure is steady, water +25° — most active: horse mackerel and mullet. Forecast by fish species and for the week ahead.
Bite forecast →
San Sebastian
8/10
🐟 horse mackerel · mullet · Pogoda 1
Water bodies in San Sebastian 🌊
Map of water bodies in San Sebastian
ColderWarmerpoint → water body page
Water temperature in San Sebastian 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 San Sebastian 🗓️
| 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 San Sebastian on this day
| Year | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
|---|---|---|---|---|---|---|---|---|---|---|
| Water | +26° | +25° | +25° | +25° | +26° | +26° | +26° | +25° | +25° | +25° |
Climate normal (model estimate for this date), not a measurement archive.
Where else to swim nearby 🏝️
Website widget
Add the «Water temperature in San Sebastian» widget — free
Pick a city or body of water, size and colour — get ready-made code. Works on any site.
Get the widget →
FAQ about water in San Sebastian ❓
What is the water temperature in San Sebastian now?
Now +25° — Warm water.
When is the water in San Sebastian warmest?
Warmest in July — up to +15°.
What bodies of water are there in San Sebastian?
Celtic Sea.
Water temperature in San Sebastian — in detail
A summary page of water temperature across all bodies of water in San Sebastian: Celtic Sea. Now about +25°. For seas the temperature is measured SST; for rivers and lakes it is a climate estimate.