Water hardness in Nerja
26.7 °fH very hard
Tap water in Nerja is very hard: 26.7 °fH (267 mg/L · 15.6 gpg · 15 °dH).
Source: SINAC, Ministerio de Sanidad — Información de un abastecimiento, municipio 29075 (2026-10) · data checked 2026-10-19
Range across supply zones: 258–367 mg/L.
SINAC data from the Ministry of Health for October 2026 put Nerja at 267 mg/L CaCO₃, with readings from 258 to 367 mg/L. In Málaga province much of the water comes from springs and wells in limestone and dolomite ranges such as Mijas, Blanca and Almijara, and from reservoirs in the Mediterranean basin. Scale builds up regularly in kettles, taps and the washing-machine heating element, so they need frequent cleaning.
Fuentes españolas usan °fH (grados hidrotimétricos franceses) o mg/L CaCO₃.
Water data
| Total hardness | 26.7 °fH |
|---|
How Nerja compares
- Tap water in Nerja is 33 % harder than the median of the 4988 cities we track in Spain (20.1 °fH).
- By hardness it ranks 1792 of 4988 in Spain (1 = hardest); 64 % of these cities have softer water.
- In Málaga it is number 48 of 103 cities; the regional median is 26 °fH.
- Nearest city with clearly softer water: Almuñécar, 10 km away (17.8 °fH).
- Nearest city with clearly harder water: Frigiliana, 7 km away (38.4 °fH).
Ranking of the hardest and softest water in Spain →
What it means at home
- Severe scale: heater elements and washing-machine heaters fail early.
- Detergent use is very high; taps and screens coat within days.
- Dishwasher at maximum salt setting.
- An ion-exchange softener is practically essential; RO for drinking water.
How much salt will you use for softening?
Yes. At this hardness a softener pays for itself through appliance life and detergent.
Descale a coffee machine or kettle about every 1 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Nerja
| Brand | Setting for this water |
|---|---|
| Bosch | H04 |
| Miele | 15 °dH |
| AEG / Electrolux | 4 |
| Beko | 4th |
| Hoover | S2 |
| LG | H3 |
From each brand's manual for the model family named in the source; your model may differ, so check its manual. All brands and how to change the setting →
FAQ
Is Nerja water hard or soft?
It is very hard: 267 mg/L as CaCO₃ (15.6 gpg, 15 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Nerja safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Fuentes españolas usan °fH (grados hidrotimétricos franceses) o mg/L CaCO₃.
How many grains per gallon is Nerja water?
15.6 gpg, equal to 15 °dH, 26.7 °fH or 267 mg/L calcium carbonate.
What dishwasher salt setting should I use in Nerja?
For 267 mg/L (15 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Nerja?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: SINAC, Ministerio de Sanidad — Información de un abastecimiento, municipio 29075 (2026-10). Method: own measurement. SINAC, Ministerio de Sanidad — Información de un abastecimiento, municipio 29075 · Outdated figure? Tell us