Utrecht
Netherlands · Europe
The water
124 mg/LHard
Source: Vitens via Waterhardheid.nl · Published figure. Hardness counts dissolved calcium and magnesium in the water; it is the number your hair meets in the shower.
What hard water does to hair
This is where minerals start to matter: a coating builds on the strand over successive washes, bringing dullness, tangles and faster colour fade. Chelating (detox) washes move from optional to part of the routine.
The washing routine for Utrecht
Make a chelating (detox) wash part of the rhythm, roughly every fourth wash, and use a gentle everyday shampoo in between. Condition well after each wash, as minerals roughen the cuticle, and expect colour-treated hair to fade faster than at home.
Climate, from recent records (Open-Meteo, ERA5 2015-2024): August is the warmest month, averaging 23°C by day, and humidity peaks in December at about 89% 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 F. 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 Utrecht 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.