About River Island Marina
38.91186° N, 90.49404° W Boat/Rv services St. Charles, MO The River Island Marina offers a family friendly environment in an open and natural setting with covered slips that look across the channel into our private, wooded island. We have excellent boat launch ramps, plenty of parking, 24-hour restroom access, and a great environment.



Installations
COORDINATES
38.91205 N, -90.49376 E
Port Information
Téléphone
Berth Sizes
< 10m
Profondeur à la marée basse moyenne
2 - 3m
Manœuvrabilité
Fair
Channel Marking
Fair
Port d'entrée
No
Overseas Visitor Berths
No
Type de quai
Floating
Style Side To
Yes
Tidal Flow
Negligible
Active Winter
Yes
Weather Forecast
Sat
9AM - 1PM
13 June 2026
- SW 8 knots.
- 25°C
- UV Index: 7 - High
- Chance of showers
Sat
1PM - 5PM
13 June 2026
- SW 7–9 knots.
- 26 to 28°C
- UV Index: 3 - Moderate
- Cloudy
Sat
5PM - 9PM
13 June 2026
- SW 5–8 knots.
- 25 to 28°C
- UV Index: 0 - Low
- Partly cloudy