Markers show the daily high for Marstrand and the places around it — all from our warm cache, the map makes no calls of its own. Radar mode fetches frames from RainViewer.
🌊 Water temperature
SMHI Hydroobs
16°
Cool water
Measured: 2026-09-17
☀️ Weather at the beach
15°
Showers
Feels like+8°
Wind10 m/s S
UV index2 – Low
Sunrise06:48
Sunset19:28
📅 5-day forecast
TodayShowers
+15°+13°3,2mm
FridayShowers
+15°+14°3,0mm
SaturdayShowers
+16°+14°2,6mm
SundayClear
+15°+13°1,7mm
MondayClear
+16°+14°–
SMHI
Official weather data from SMHI (Swedish Meteorological and Hydrological Institute) · SMHI · Swedish Museum of Natural History · Trafikverket