Netherlands / South Holland
Rockanje Strand
Rockanje Strand is a coastal resort area in South Holland, Netherlands. Its longest mapped beach stretches about 4.4 km and has a sand surface. The sea averages 18.7 °C in August, its warmest month, and 5.8 °C in February; it never reaches 21 °C on average.
Average sea surface temperature by month. Current month outlined.
The sea peaks at 18.7 °C in August. Most swimmers find water below 20 °C cold; a wetsuit is common here.
OpenStreetMap shows no lifeguard station within 1 km. Seasonal lifeguard posts are often unmapped, so check on site.
Services in the resort
- 4Restaurants, cafés & bars
- –Public toilets
- –Showers
- 1Car parks
- –Lifeguard stations
- 2Bus stops (1.5 km)
- 3Viewpoints
Food and drink mapped within 1 km: 3 restaurants and 1 fast-food outlet.
Counted within 1 km of the beach (bus stops 1.5 km) from OpenStreetMap features and Overture Maps places, release of 2026-10. Unmapped does not mean absent.
Bathing water quality
The official EU bathing-water site “Rockanje Badstrand”, 690 m from the beach centre, was rated Excellent for the 2025 season. It was Excellent in 9 of its 11 classified seasons since 2015.
- 2015Excellent
- 2016Excellent
- 2017Excellent
- 2018Excellent
- 2019Good
- 2020Excellent
- 2021Good
- 2022Excellent
- 2023Excellent
- 2024Excellent
- 2025Excellent
Source: European Environment Agency, EU Bathing Water Directive assessments · national site profile. Classes are based on four seasons of bacteriological sampling.
Month by month
October at Rockanje Strand
Beach-day index 2.4/10 · Netherlands median 2.3
| Measure | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea °C | 6.5 °C | 5.8 °C | 6.3 °C | 8.5 °C | 11.5 °C | 14.6 °C | 17.2 °C | 18.7 °C | 17.7 °C | 15.0 °C | 11.6 °C | 8.5 °C |
| High °C | 6° | 6° | 9° | 13° | 16° | 19° | 21° | 21° | 19° | 15° | 10° | 7° |
| Low °C | 2° | 2° | 3° | 6° | 9° | 13° | 15° | 15° | 13° | 10° | 6° | 3° |
| Rain mm | 77 | 66 | 55 | 38 | 56 | 62 | 78 | 87 | 70 | 79 | 81 | 85 |
| Cloud % | 74 | 72 | 66 | 61 | 65 | 67 | 64 | 64 | 61 | 68 | 73 | 74 |
| Wind m/s | 6.8 | 6.5 | 5.8 | 5.0 | 5.1 | 4.8 | 4.7 | 4.9 | 5.2 | 6.0 | 6.1 | 6.5 |
| Daylight h | 8.3 | 9.9 | 11.8 | 13.8 | 15.6 | 16.7 | 16.3 | 14.7 | 12.8 | 10.8 | 8.9 | 7.8 |
| Record high/low | 13°/-8° | 15°/-11° | 19°/-7° | 24°/-1° | 26°/4° | 30°/7° | 34°/11° | 32°/11° | 30°/7° | 24°/1° | 18°/-3° | 14°/-8° |
| Beach index | 2.2 | 2.3 | 2.6 | 2.9 | 2.7 | 3.6 | 5.2 | 5.6 | 4.3 | 2.4 | 2.3 | 2.2 |
Long-term monthly averages: air from NASA POWER (2001–2020), sea from NOAA OISST (1991–2020); records are the extremes of 2001–2020. How the index works.
When to go
The beach-day index peaks in August; August scores 5.6/10 with highs of 21 °C, sea at 18.7 °C and 87 mm of rain.
That matches the median for beaches in Netherlands in the same month.
Across the year the sea averages 11.8 °C, cooler than 85% of the coastal beaches in the atlas.
August is the wettest month (87 mm) and April the driest (38 mm); the yearly total is about 830 mm.
Daylight runs from 7.8 hours in December to 16.7 hours in June; in mid-August the sun rises at 06:26 and sets at 21:10 local time.
Orientation, sun and shore
The shore faces west-south-west (240°). Open water fills about 53% of the horizon close by, which makes it an exposed spot with water on most sides.
The sun sets over the sea in every month; in mid-June it goes down at 22:03 local time on a bearing of 311°.
The opposite shore is only about 3.0 km away to the west-south-west, which keeps the water sheltered from big waves.
About 1 km offshore the sea is roughly 1 m deep and 1 m at 3 km, a shallow, gently shelving sea floor. Behind the beach the ground is about 7 m above sea level 500 m inland and 0 m at 1.5 km, a flat coastal plain.
Within 1 km, the land is 43% tree cover, 42% grassland and 14% bare ground, sand or rock (satellite land-cover map, 2021): a largely natural setting. Water makes up 60% of that circle.
- Tree 43%
- Grass 42%
- Bare 14%
Land cover: ESA WorldCover 2021 (10 m). Orientation from OpenStreetMap land polygons sampled in 36 directions; depths and heights from the GEBCO 2020 grid (about 450 m cells), indicative only.
Getting there
| Airport | Code | Distance | Direction |
|---|---|---|---|
| Rotterdam The Hague Airport Rotterdam | RTM | 28.4 km | east |
| Amsterdam Airport Schiphol Amsterdam | AMS | 69.5 km | north-east |
| Antwerp International Airport (Deurne) Antwerp | ANR | 79.7 km | south |
Straight-line distances from the beach; road distance is usually 20–40% longer.
Local transport: 2 bus stops within 1.5 km and 1 mapped car park within 1 km.
9 towns and villages of 1,000+ people lie within 10 km (about 53K residents); within 30 km there are 67 (about 2.2M).
Map
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Data on this page
- Air temperature, rain, cloud, wind, humidity: NASA POWER climatology 2001–2020, 0.5° grid.
- Sea temperature: NOAA OISST v2.1 monthly normals 1991–2020, nearest ocean cell 12.4 km away.
- Beach outline, surface, rules and public facilities: OpenStreetMap contributors (ODbL), feature w671610371; restaurants, cafés, bars and lodging: Overture Maps places (CDLA-Permissive-2.0).
- Water body, status and length: Wikidata (CC0).
- Towns and time zone: GeoNames (CC BY 4.0). Airports: OurAirports (public domain). Sunrise and sunset: NOAA solar equations.
- Satellite view: Copernicus Sentinel-2 (ESA), scene S2B_31UET_20250621_0_L2A.
- Orientation: OpenStreetMap land polygons (ODbL). Depth and terrain: GEBCO 2020 grid.
- Bathing-water quality: European Environment Agency (site NLBW95_ROCKJBSD).
- Settlements: GeoNames places with 1,000+ inhabitants.
- Land cover: ESA WorldCover 2021, 10 m (CC BY 4.0).
- Search popularity: about 3.6K Google searches a month for the name (KeywordTool, October 2026).
Data compiled 2026-10-13. Something wrong? Report a data error.