Arrietara hondartza sea temperature
Sea-surface temperature for Arrietara hondartza, Spain, with the 7-day outlook and what to wear.
What is the sea temperature at Arrietara hondartza today? (20 Oct)
The sea at Arrietara hondartza is 17.8 °C today. A summer full suit is the standard choice at this temperature. The sea is about 7 °C warmer than the air, so it will feel mild going in.
Arrietara hondartza sea temperature — next 7 days
Sea temperature varies by under 0.9 °C across the week.
| Date | Sea temp | Range | Suggested wetsuit |
|---|---|---|---|
| Tue 20 Octtoday | 17.8 °C17.7–17.9 °C | 17.7–17.9 °C | 3/2 mm full suit |
| Wed 21 Oct | 17.6 °C17.6–17.7 °C | 17.6–17.7 °C | 3/2 mm full suit |
| Thu 22 Oct | 17.8 °C17.6–17.9 °C | 17.6–17.9 °C | 3/2 mm full suit |
| Fri 23 Oct | 18.0 °C17.9–18.1 °C | 17.9–18.1 °C | 3/2 mm full suit |
| Sat 24 Oct | 18.1 °C18.1–18.2 °C | 18.1–18.2 °C | 3/2 mm full suit |
| Sun 25 Oct | 18.3 °C18.2–18.3 °C | 18.2–18.3 °C | 3/2 mm full suit |
| Mon 26 Oct | 18.4 °C18.3–18.5 °C | 18.3–18.5 °C | 3/2 mm full suit |
Figures are modelled sea-surface temperature, not readings from a buoy or a thermometer in the shallows — expect a degree either way, and more in a shallow bay on a hot afternoon. Wetsuit suggestions are general guidance: cold tolerance varies a lot between people, and wind, session length and air temperature matter as much as the water does.
What wetsuit for what sea temperature?
| Sea temperature | Wetsuit | Extras |
|---|---|---|
| 24 °C and above | Boardshorts or swimsuit | — |
| 22–24 °C | Rash vest or 1 mm top | — |
| 19–22 °C | 2 mm shorty or spring suit | — |
| 17–19 °CArrietara hondartza today | 3/2 mm full suit | — |
| 14–17 °C | 4/3 mm full suitboots on longer sessions | boots on longer sessions |
| 11–14 °C | 5/4 mm full suitboots and gloves | boots and gloves |
| 7–11 °C | 5/4/3 mm hooded full suitboots and gloves | boots and gloves |
| Below 7 °C | 6/5 mm hooded full suitthick boots and gloves | thick boots and gloves |
Conditions at Arrietara hondartza
Water temperature is one input. For wave height, wind and a 0–100 score per sport and ability level, see the full forecast.
Sea temperature near Arrietara hondartza
Frequently asked questions.
What is the sea temperature at Arrietara hondartza today?
The sea at Arrietara hondartza, Spain is 17.8 °C today. This is modelled sea-surface temperature rather than a buoy reading, so allow a degree either way.
What wetsuit do I need at Arrietara hondartza?
At 17.8 °C, 3/2 mm full suit is the usual choice at Arrietara hondartza. A summer full suit is the standard choice at this temperature. Cold tolerance varies, and wind and session length matter as much as the water temperature.
Is the sea warm enough to swim at Arrietara hondartza?
At 17.8 °C the sea at Arrietara hondartza is swimmable but brisk — fine for a short swim, and most people want a wetsuit for longer.
How much does the sea temperature at Arrietara hondartza change over a week?
Over the next 7 days the sea at Arrietara hondartza stays between 17.6 °C and 18.5 °C. Open water changes temperature slowly, so it rarely moves much inside a week — seasonal change is what matters.
