Water hardness in Jurmala
3.29 mmol/L very hard
Tap water in Jurmala is very hard: 3.29 mmol/L (329 mg/L · 19.2 gpg · 18.4 °dH).
Source: SIA Jurmalas udens - Dzerama udens kvalitate (average 2026 as of 19.08.2026) (2026-08) · data checked 2026-10-22
Range across supply zones: 233–400 mg/L.
4 supply zones — hardness varies by neighbourhood; the figure above is the median.
Hardness by district / supply zone
| mmol/L | mg/L | ||
|---|---|---|---|
| Dzintari | 3.9 | 390 | very hard |
| Jaundubulti | 4 | 400 | very hard |
| Kauguri | 2.68 | 268 | very hard |
| Kemeri | 2.33 | 233 | very hard |
SIA Jurmalas udens publishes total hardness for four supply areas: 2.33 mmol/L in Kemeri, 2.68 in Kauguri, 3.9 in Dzintari and 4.0 in Jaundubulti, roughly 233-400 mg/L CaCO3. These are 2026 averages as of 19 August, so they cover only part of the year and may shift. Hardness depends on which area a home is in, and in the harder areas limescale on kettles and hot-water equipment is likely.
Latvian suppliers report total hardness in mmol/L.
Water data
| Total hardness | 3.29 mmol/L |
|---|---|
| Utility | SIA Jurmalas udens |
How Jurmala compares
- Tap water in Jurmala is 48 % harder than the median of the 3 cities we track in Latvia (2.22 mmol/L).
- By hardness it ranks 1 of 3 in Latvia (1 = hardest); 100 % of these cities have softer water.
- Nearest city with clearly softer water: Riga, 20 km away (1.7 mmol/L).
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 Jurmala
| Brand | Setting for this water |
|---|---|
| Bosch | H05 |
| Miele | 18 °dH |
| AEG / Electrolux | 4 |
| Beko | 5th |
| Hoover | S3 |
| 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 Jurmala water hard or soft?
It is very hard: 329 mg/L as CaCO₃ (19.2 gpg, 18.4 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Jurmala safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Latvian suppliers report total hardness in mmol/L.
How many grains per gallon is Jurmala water?
19.2 gpg, equal to 18.4 °dH, 32.9 °fH or 329 mg/L calcium carbonate.
What dishwasher salt setting should I use in Jurmala?
For 329 mg/L (18.4 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Jurmala?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: SIA Jurmalas udens - Dzerama udens kvalitate (average 2026 as of 19.08.2026) (2026-08). Method: figure published by the water supplier. SIA Jurmalas udens - Dzerama udens kvalitate (average 2026 as of 19.08.2026) · Outdated figure? Tell us