Croatia · Primorje-Gorski Kotar
Kupalište Slatina
Opatija — Primorje-Gorski Kotar, Croatia
On the beach
Right now
Live conditions from Open-Meteo, refreshed hourly.
7-day outlook
7-day marine forecast from Open-Meteo.
Sea temperature
Next 7 days, °C
Wave height
Next 7 days, metres
View as table
| Day | Sea temp (°C) | Wave height (m) |
|---|---|---|
| Wed 2 | 26.8 | 0.1 |
| Thu 3 | 26.8 | 0.0 |
| Fri 4 | 27.0 | 0.0 |
| Sat 5 | 27.0 | 0.1 |
| Sun 6 | 27.2 | 0.1 |
| Mon 7 | 27.3 | 0.0 |
| Tue 8 | 27.4 | 0.1 |
Water quality history
Official EEA classification, one rating per bathing season, 2015–2025 — real data reported by national authorities.
- 2015: Good2015
- 2016: Good2016
- 2017: Excellent2017
- 2018: Excellent2018
- 2019: Excellent2019
- 2020: Excellent2020
- 2021: Excellent2021
- 2022: Excellent2022
- 2023: Excellent2023
- 2024: Excellent2024
- 2025: Excellent2025
Excellent in the most recent season, and 11 of 11 classified years rated Excellent or Good.
- Excellent
- Good
- Sufficient
- Poor
- Not classified
View as table
| Year | Classification |
|---|---|
| 2015 | Good |
| 2016 | Good |
| 2017 | Excellent |
| 2018 | Excellent |
| 2019 | Excellent |
| 2020 | Excellent |
| 2021 | Excellent |
| 2022 | Excellent |
| 2023 | Excellent |
| 2024 | Excellent |
| 2025 | Excellent |
Typical sea temperature by month
Modeled estimatePlausible seasonal climatology derived from latitude, for illustration — not a measured average.
Monthly sea temperature
Typical range across the year, °C
View as table
| Month | Typical sea temp (°C) |
|---|---|
| Jan | 15 |
| Feb | 14 |
| Mar | 15 |
| Apr | 17 |
| May | 20 |
| Jun | 23 |
| Jul | 25 |
| Aug | 26 |
| Sep | 25 |
| Oct | 23 |
| Nov | 20 |
| Dec | 17 |
Location & nearby beaches
Nearby beaches
- Hotel Milenij - kupalište208 mOpatija, Primorje-Gorski Kotar
- Hotel Kristal - kupalište348 mOpatija, Primorje-Gorski Kotar
- Hotel Kvarner - kupalište398 mOpatija, Primorje-Gorski Kotar
- Kupalište Lido541 mOpatija, Primorje-Gorski Kotar
Distances calculated as straight-line (haversine) from official coordinates.
Getting there & around
- Easy by car — there's parking close to the beach.
- Bus stop: Opatija - Slatina A, about ~230 m away.
Food, stays & town
- Nearest town: Opatija, about ~400 m away.
- 9 places to eat within 1 km Closest is Kremenko beach bar, about ~150 m away.
- 5 places to stay mapped nearby Closest is Galeb, about ~220 m away.
- 2 shops nearby, the closest about ~210 m away
What kind of beach is this?
This is a town beach, woven into the everyday fabric of a city or larger settlement — expect company on warm days, especially through July and August, alongside easy access to shops and services.
Estimated from OpenStreetMap surroundings data (ODbL).
- Families
- Water sports
Is the water clean at Kupalište Slatina?
Kupalište Slatina sits on a stretch of coast classed as a coastal bathing site, carrying an official EU Bathing Water rating of Excellent for the 2025 season. Under the EU Bathing Water Directive, national authorities test for intestinal enterococci and E. coli through the season and report the results the following spring — the 2025 rating was published in spring 2026, and 2026's won't follow until spring 2027. In addition to that yearly rating, some national authorities — for Croatia, IZOR (Croatia's Institute of Oceanography and Fisheries) — publish individual water sample results during the season itself, ahead of the annual report. It sits in Opatija, Primorje-Gorski Kotar. You can park about ~180 m away.
That rating has been consistent: every one of the 11 classified seasons on record has come back Excellent or Good. If you're timing a visit around water temperature rather than crowds, July–September is the safest bet, with August typically the peak — expect a cooler, calmer sea either side of that stretch. Water quality here is tracked across 2 separate monitoring points along the shoreline.
That “Excellent” label comes from a full season of official water sampling, not a single test — it's one step on a four-point scale (Excellent, Good, Sufficient, Poor) reassessed once a year. Today's actual conditions can differ from the seasonal average, so for a live snapshot see the “Right now” and 7-day outlook panels above. It's been a consistently reliable spot too — the rating has held at Excellent for 9 straight years. There are 9 places to eat within a kilometre — Kremenko beach bar is the closest, about ~150 m away.
Frequently asked questions
Can you safely swim at Kupalište Slatina?
It's about as safe as bathing water gets: Kupalište Slatina's 2025 EU rating is Excellent, the top tier on the scale, and 11 of 11 classified seasons have come back Excellent or Good. It's also held steady at Excellent for 9 straight years.
How warm is the sea at Kupalište Slatina right now?
As of the latest update, the sea temperature at Kupalište Slatina is around 26°C — see the “Right now” panel above for live conditions. That's the reading right off Opatija, Primorje-Gorski Kotar.
Which month has the warmest sea at Kupalište Slatina?
July–September tends to be the sweet spot for swimming here, with sea temperatures usually peaking later in that stretch. That applies to the water around Opatija, Primorje-Gorski Kotar.
What does the water quality rating actually measure?
The annual classification — Excellent, Good, Sufficient or Poor — is built from a full season of official testing for intestinal enterococci and E. coli, reported to the European Environment Agency each spring. Some national authorities (Croatia's IZOR among them) also publish individual samples during the season itself; Kupalište Slatina isn't yet covered by that in-season feed.
Can you drive to Kupalište Slatina?
By car, it's easy — parking is right by the beach. By bus, the nearest stop is Opatija - Slatina A, about ~230 m away. The nearest town is Opatija, about ~400 m away.