Arcachon
France · Europe
The water
81 mg/LModerate
Source: Ministere de la Sante, SISE-Eaux via Hub'Eau API (reseau COBAS) · Official figure. Hardness counts dissolved calcium and magnesium in the water; it is the number your hair meets in the shower.
What moderate water does to hair
Minerals are present but gentle: lather and rinsing stay close to normal, and most hair types notice little change. A clarifying wash now and then stops the slow film before it shows.
The washing routine for Arcachon
Keep your normal rhythm and add a detox (chelating) wash about every eighth wash to lift the light mineral film before it dulls shine. Everything else in your routine can travel unchanged.
Climate, from recent records (Open-Meteo, ERA5 2015-2024): July is the warmest month, averaging 25°C by day, and humidity peaks in December at about 84% on average. In the humid months, frizz is the main event; anti-humidity styling matters more than wash frequency.
Plugs and power for your tools
Sockets: Type C and E. Supply: 230 V, 50 Hz.
Full sockets by the sink are standard (kept outside the 60 cm splash zones around the bath and shower, and RCD protected, under the IEC 60364 zone rules).
A 120 V only dryer or styler (North American) will burn out on this supply, and a plug adapter does not change voltage. Check the label for dual voltage (100-240 V) before you plug in.
Plug, voltage and frequency: IEC World Plugs and national standards.
Plan Arcachon properly
The trip planner turns this water profile into a wash plan for your hair type, a chosen kit and a packing list, month by month.