Croatia · Split-Dalmatia
Tri sestrice
Arbanija — Split-Dalmatia, 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 | 28.4 | 0.3 |
| Thu 3 | 28.3 | 0.5 |
| Fri 4 | 28.2 | 0.4 |
| Sat 5 | 28.1 | 0.1 |
| Sun 6 | 28.3 | 0.0 |
| Mon 7 | 28.4 | 0.0 |
| Tue 8 | 28.4 | 0.2 |
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
- Sv. Križ375 mArbanija, Split-Dalmatia
- Miševac860 mTrogir, Split-Dalmatia
- Duhanska Stanica1.9 kmTrogir, Split-Dalmatia
- Brigi2.3 kmTrogir, Split-Dalmatia
Distances calculated as straight-line (haversine) from official coordinates.
Getting there & around
- By car: there's parking about ~900 m from the beach.
- Nearest bus stop is about ~70 m away.
Food, stays & town
- Nearest village: Mastrinka, about ~400 m away.
- 1 place to stay mapped nearby Closest is Apartments by the sea Mastrinka - 1005, about ~210 m away.
- 1 shop nearby, about ~70 m away
What kind of beach is this?
This beach belongs to a small coastal village. It's usually calmer than a resort or town beach, though a popular village spot can still fill up on the best summer days.
Estimated from OpenStreetMap surroundings data (ODbL).
Is the water clean at Tri sestrice?
Tri sestrice 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 Changing rooms, Benches, and Trash bins. There's parking about ~900 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. The nearest town, Mastrinka, is about ~400 m away.
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.
Frequently asked questions
Is Tri sestrice safe to swim in?
Yes, without much reservation. Tri sestrice holds the top EU Bathing Water classification, Excellent, for 2025, and 11 of 11 classified seasons here have rated Excellent or Good. It's also held steady at Excellent for 11 straight years.
What is the sea temperature at Tri sestrice today?
Tri sestrice's sea temperature currently sits at around 28°C, based on the latest update — check the “Right now” panel above for the full live picture. That's the reading right off Arbanija, Split-Dalmatia. On the modeled climatology here, August usually runs warmest.
When does Tri sestrice have the warmest water?
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 Arbanija, Split-Dalmatia. Within that window, August is typically the single warmest month.
Who measures the water quality rating, and how?
Once a year, national authorities report a full season of testing for intestinal enterococci and E. coli to the European Environment Agency, which grades the season Excellent, Good, Sufficient or Poor under the EU Bathing Water Directive. A handful of countries, including Croatia via IZOR, also publish individual in-season samples ahead of that report — Tri sestrice doesn't have that feed set up yet.
Is there parking near Tri sestrice?
By car, there's parking about ~900 m from the beach. There's a bus stop about ~70 m from the beach. The nearest town is Mastrinka, about ~400 m away.