Thermen Binnenmaas
Naturist sauna or spa in South Holland, Netherlands
Thermen Binnenmaas is a naturist-only sauna and spa in South Holland, Netherlands. Average air temperatures peak in August at 18°C (65°F), and the best time to visit is February to June and September. There are 8 other naturist places within 50 km (31 mi), the closest being Naturistencamping Markeplaat (16 km (9.8 mi)).
Weather and water temperature at Thermen Binnenmaas
Tap a month. Averages: air 2001–2025 (NASA POWER), sea 1991–2020 (NOAA OISST).
| Month | Air | Rain |
|---|---|---|
| January | 4°C | 77 mm |
| February (best) | 4°C | 65 mm |
| March (best) | 6°C | 55 mm |
| April (best) | 9°C | 38 mm |
| May (best) | 13°C | 56 mm |
| June (best) | 16°C | 62 mm |
| July | 18°C | 78 mm |
| August | 18°C | 87 mm |
| September (best) | 16°C | 70 mm |
| October | 12°C | 79 mm |
| November | 8°C | 81 mm |
| December | 5°C | 85 mm |
Visiting
- Website: thermenbinnenmaas.nl
- Coordinates: 51.77039, 4.61090 · OpenStreetMap
- Local law: is public nudity legal in Netherlands?
- New to nude saunas? Read what FKK and textile-free saunas mean.
Naturist places near Thermen Binnenmaas
- 1Naturistencamping Markeplaat naturist campground · North BrabantNaturist only
- 2Naturistenvereniging Mens en Natuur naturist park or area · North BrabantNaturist only
- 3Strand Kralingse Plas nude beach · South HollandClothing optionalSea 19°C in August
- 4Berkenwoude naturist campground · South HollandOfficial
- 5Zevenhuizerplas Naaktstrandje nude beach · South HollandOfficialSea 19°C in August
- 6Naturisten Camping Abtswoudse Hoeve naturist campground · South HollandClothing optional
- 7De Posthoek naturist campground · North BrabantClothing optional
- 8Naaktstrand Galderse Meren nude beach · North BrabantOfficial
Status labels: Official · Naturist only · Clothing optional · Tolerated · Customary · Listed · Prohibited · Closed. Statuses come from open data and are not yet verified in person.
Frequently asked questions
Is Thermen Binnenmaas clothing optional?
Thermen Binnenmaas is listed as "naturist only: nudity expected" according to OpenStreetMap (nudism=nude_required). Rules can change, and clothing-optional zones are often only part of a site, so look for signs on arrival and follow local rules. NudistMap has not yet verified this status in person. You can check what applies in Netherlands before you go.
When is the best time to visit Thermen Binnenmaas?
Based on 2001–2025 climate averages (NASA POWER), the most comfortable months are February to June and September. July averages 18°C (65°F) and January 4°C (39°F).
What other naturist places are near Thermen Binnenmaas?
The closest are Naturistencamping Markeplaat (16 km (9.8 mi)), Naturistenvereniging Mens en Natuur (16 km (9.8 mi)) and Strand Kralingse Plas (20 km (13 mi)).
Sources
Status from OpenStreetMap (nudism=nude_required). Not yet verified against an official source; local rules may have changed. Data updated 2026-10-31. All data sources and licenses. © OpenStreetMap contributors.