Water hardness in Évora
140 mg/L hard
Tap water in Évora is hard: 140 mg/L (8.2 gpg · 7.8 °dH · 14 °fH).
Source: Câmara Municipal de Évora - Dados do controlo da qualidade da água, 3º trimestre 2025 (2025) · data checked 2026-10-23
Évora is supplied by its local water utility. Northern and central Portugal sit largely on granite and schist, which gives soft water, while limestone in the south and centre makes it harder. The reported hardness is 140.0 mg/L CaCO₃. Expect visible scale in kettles and showers; a scale-control device is worth considering.
Portuguese operators report "dureza total" in mg/L CaCO₃ to ERSAR.
Water data
| Total hardness | 140 mg/L |
|---|---|
| calcio_mg_l | 32 |
| magnesio_mg_l | 14 |
| Utility | Câmara Municipal de Évora |
How Évora compares
- Tap water in Évora is 68 % harder than the median of the 77 cities we track in Portugal (83 mg/L).
- By hardness it ranks 7 of 77 in Portugal (1 = hardest); 92 % of these cities have softer water.
- Nearest city with clearly softer water: Setúbal, 86 km away (80 mg/L).
- Nearest city with clearly harder water: Corroios, 109 km away (232 mg/L).
Ranking of the hardest and softest water in Portugal →
What it means at home
- Fast scale on taps, shower screens and kettle; white spots on glassware.
- Water heater: efficiency loss and element failures within years if unprotected.
- Dry skin and dull hair after showering are common.
- Softener recommended; jug or reverse osmosis for drinking.
How much salt will you use for softening?
Recommended, especially with a heater or boiler: scale cuts efficiency and shortens its life.
Descale a coffee machine or kettle about every 2 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Évora
| Brand | Setting for this water |
|---|---|
| Bosch | H01 |
| Miele | 8 °dH |
| AEG / Electrolux | 2 |
| Beko | 3rd |
| Hoover | S1 |
| LG | H2 |
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 Évora water hard or soft?
It is hard: 140 mg/L as CaCO₃ (8.2 gpg, 7.8 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Évora safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Portuguese operators report "dureza total" in mg/L CaCO₃ to ERSAR.
How many grains per gallon is Évora water?
8.2 gpg, equal to 7.8 °dH, 14 °fH or 140 mg/L calcium carbonate.
What dishwasher salt setting should I use in Évora?
For 140 mg/L (7.8 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in Évora?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
Source
Source: Câmara Municipal de Évora - Dados do controlo da qualidade da água, 3º trimestre 2025 (2025). Method: figure published by the water supplier. Câmara Municipal de Évora - Dados do controlo da qualidade da água, 3º trimestre 2025 · Outdated figure? Tell us