Real, current readings for Emerald Bay’s water, sourced directly from NOAA and the National Weather Service — not a generic Catalina forecast. For the swim boundary and location photos, see Where we swim.
Nearest real conditions
Water off San Pedro, the nearest buoy with real sensors (14 nm away): 72°F, 3.3 ft swell at 14s.
Nothing here is measured at Emerald Bay itself — these are the closest public readings we could find, a general sense of the day rather than a forecast for the cove.
Tide
Next tides at Catalina Harbor, Two Harbors (2.3 nm from camp).
High
4.6 ft
12:25pm
Low
1 ft
9:25pm
Marine forecast
NWS marine forecast, NWS inner waters, Pt. Mugu to San Mateo Pt. (includes Catalina Island) — the whole island’s inner waters, not a point reading for Emerald Bay.
TODAY
Malibu to Santa Monica, NE wind 25 to 35 kt becoming 20 to 30 kt this afternoon. Otherwise, NE wind 15 to 20 kt becoming E this afternoon. Seas 3 to 5 ft. Wave Detail: NE 4 ft at 5 seconds and S 2 ft at 15 seconds.
TONIGHT
Malibu to Santa Monica and the San Pedro Channel, NE wind 10 to 20 kt becoming 15 to 25 kt after midnight. Otherwise, E wind 10 to 15 kt becoming NE after midnight. Seas 3 to 4 ft. Wave Detail: NE 3 ft at 5 seconds and S 2 ft at 15 seconds.
SAT
Malibu to Santa Monica, NE wind 15 to 25 kt becoming N 10 to 20 kt in the afternoon. Otherwise, NE wind 10 to 15 kt becoming NW in the afternoon. Seas 3 to 4 ft. Wave Detail: NE 2 ft at 5 seconds and S 2 ft at 16 seconds.
SAT NIGHT
W wind 5 to 10 kt in the evening, becoming light. Seas 2 to 3 ft. Wave Detail: S 3 ft at 16 seconds.
Forecast
NWS point forecast for Emerald Bay (NWS point forecast) (33.466, -118.525).
Today
94°F
Sunny
ENE 10 to 20 mph
Tonight
76°F
Partly Cloudy
ENE 10 to 15 mph
Saturday
93°F
Sunny
NNE 10 to 15 mph
Saturday Night
69°F
Mostly Clear
NW 5 to 10 mph
Sunday
82°F
Sunny
NW 5 to 10 mph
Sunday Night
65°F
Mostly Clear
W 5 to 10 mph
Temperature, next 3 days
| Hour | Temperature |
|---|---|
| 7am | 81°F |
| 8am | 81°F |
| 9am | 83°F |
| 10am | 84°F |
| 11am | 86°F |
| 12pm | 87°F |
| 1pm | 89°F |
| 2pm | 94°F |
| 3pm | 90°F |
| 4pm | 92°F |
| 5pm | 90°F |
| 6pm | 88°F |
| 7pm | 86°F |
| 8pm | 86°F |
| 9pm | 84°F |
| 10pm | 84°F |
| 11pm | 82°F |
| Hour | Temperature |
|---|---|
| 12am | 82°F |
| 1am | 80°F |
| 2am | 80°F |
| 3am | 80°F |
| 4am | 80°F |
| 5am | 78°F |
| 6am | 78°F |
| 7am | 76°F |
| 8am | 80°F |
| 9am | 85°F |
| 10am | 89°F |
| 11am | 93°F |
| 12pm | 88°F |
| 1pm | 88°F |
| 2pm | 90°F |
| 3pm | 88°F |
| 4pm | 88°F |
| 5pm | 88°F |
| 6pm | 82°F |
| 7pm | 80°F |
| 8pm | 77°F |
| 9pm | 77°F |
| 10pm | 77°F |
| 11pm | 74°F |
| Hour | Temperature |
|---|---|
| 12am | 74°F |
| 1am | 74°F |
| 2am | 72°F |
| 3am | 72°F |
| 4am | 72°F |
| 5am | 72°F |
| 6am | 71°F |
| 7am | 69°F |
| 8am | 69°F |
| 9am | 71°F |
| 10am | 74°F |
| 11am | 77°F |
| 12pm | 79°F |
| 1pm | 81°F |
| 2pm | 82°F |
| 3pm | 82°F |
| 4pm | 82°F |
| 5pm | 80°F |
| 6pm | 78°F |
| 7pm | 74°F |
| 8pm | 72°F |
| 9pm | 71°F |
| 10pm | 71°F |
| 11pm | 71°F |
For radar and satellite imagery of the area, see Catalina Harbor on US Harbors — the numbers above are sourced directly from NOAA, same as that page’s own marine forecast section.