Croatia · Primorje-Gorski Kotar
Kaštelina
Lopar — 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 | 27.6 | 0.1 |
| Thu 3 | 27.4 | 0.2 |
| Fri 4 | 27.3 | 0.1 |
| Sat 5 | 27.1 | 0.2 |
| Sun 6 | 27.5 | 0.2 |
| Mon 7 | 27.8 | 0.1 |
| Tue 8 | 27.8 | 0.1 |
Water quality history
Official EEA classification, one rating per bathing season, 2015–2025 — real data reported by national authorities.
- 2015: Excellent2015
- 2016: Excellent2016
- 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 | Excellent |
| 2016 | Excellent |
| 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
- Livačina518 mLopar, Primorje-Gorski Kotar
- Uvala Zastolac890 mLopar, Primorje-Gorski Kotar
- Rajska plaža1.2 kmLopar, Primorje-Gorski Kotar
- Gornja Supetarska Draga3.4 kmRab, Primorje-Gorski Kotar
Distances calculated as straight-line (haversine) from official coordinates.
Getting there & around
- By car: there's parking about ~420 m from the beach.
Food, stays & town
- Nearest village: Lopar, about ~2.0 km away.
- 19 places to eat within 1 km Closest is Santa Marija, about ~390 m away.
- 8 places to stay mapped nearby Closest is Sahara Hotel, about ~630 m away.
- 2 shops nearby, the closest about ~1.2 km away
What kind of beach is this?
This beach sits in a built-up resort setting, with hotels, restaurants and services clustered around it — a full-service stretch of coast that tends to be busy in peak season and quieter outside it.
Estimated from OpenStreetMap surroundings data (ODbL).
- Full-service days
Is the water clean at Kaštelina?
Kaštelina is a coastal bathing site with an official EU Bathing Water rating of Excellent for the 2025 season — the highest official classification under the EU bathing-water assessment. That annual classification comes from the EU Bathing Water Directive: national authorities test for two indicator bacteria, intestinal enterococci and E. coli, throughout the bathing season, then report the full-season results to the European Environment Agency (EEA) the following spring — the 2025 season's rating was published in spring 2026, and the 2026 season won't be rated 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. On site you'll find Trash bins. There's parking about ~420 m from the beach.
That rating has been consistent: every one of the 11 classified seasons on record has come back Excellent or Good. The most reliable swimming window here typically runs from July–September, with the sea usually at its warmest around August. Outside that window the water is cooler and often quieter. It's been a consistently reliable spot too — the rating has held at Excellent for 11 straight years.
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. There are 19 places to eat within a kilometre — Santa Marija is the closest, about ~390 m away.
Frequently asked questions
Is it safe to go in the water at Kaštelina?
Yes — Kaštelina carries the top EU Bathing Water classification, Excellent, for 2025, and 11 of its 11 classified seasons have rated Excellent or Good. It's also held steady at Excellent for 11 straight years.
What is the sea temperature at Kaštelina today?
The most recent reading for Kaštelina shows the sea at around 27°C. For live, up-to-the-hour conditions, see the “Right now” panel above. That's the reading right off Lopar, Primorje-Gorski Kotar. On the modeled climatology here, August usually runs warmest.
When is the best time to swim at Kaštelina?
For swimming, July–September is usually the best call — that's the modeled window when the sea here runs warmest. That applies to the water around Lopar, Primorje-Gorski Kotar. Within that window, August is typically the single warmest month.
How is bathing water quality actually assessed?
Behind the annual grade: a season of testing for intestinal enterococci and E. coli, reported to the European Environment Agency each spring under the EU Bathing Water Directive. A few countries, Croatia via IZOR included, also publish individual in-season samples ahead of that report, but Kaštelina doesn't have one published yet.
What's the easiest way to reach Kaštelina?
By car, there's parking about ~420 m from the beach. The nearest town is Lopar, about ~2.0 km away.