California · Harbor
Los Angeles Harbor
Los Angeles Harbor
—°F
More observations are needed to draw this chart.
Next low tide1:15 AMThu · 0.64 ft MLLW
No current reading
Santa Monica Bay · Pier
Santa Monica
Water temperature & tides
WATER TEMPERATURE Station observation
72.1°F
Above usual October range
10th–90th percentile: 61.3°F – 68.0°F · 2021–2025.
Seasonal context, not a failed sensor quality check. Compared with hourly observations in the same UTC calendar month.
Last available observation
72.1°F ·
Historical reading, over 24 hours old. It is excluded from current temperatures and comparisons.
-0.7° compared with 24 hours earlier
COMING UP · LOCAL TIME
Signed heights relative to MLLW; negative values are below the datum. Astronomical tide predictions do not include storm surge.
✓
Official weather alerts shown above. Local water-quality closures are not included. Check local beach authorities.
RECENT OBSERVATIONS
Water temperature
Past 72 hours at Santa Monica. Gaps are left visible.
View observation table
| Local date & time | Water temperature |
|---|---|
| Oct 21 · 8:00 PM PDT | 72.1°F |
| Oct 21 · 7:54 PM PDT | 72.1°F |
| Oct 21 · 7:48 PM PDT | 72.0°F |
| Oct 21 · 7:42 PM PDT | 72.0°F |
| Oct 21 · 7:36 PM PDT | 72.0°F |
| Oct 21 · 7:30 PM PDT | 72.0°F |
| Oct 21 · 7:24 PM PDT | 72.0°F |
| Oct 21 · 7:18 PM PDT | 72.1°F |
| Oct 21 · 7:12 PM PDT | 72.1°F |
| Oct 21 · 7:06 PM PDT | 72.1°F |
| Oct 21 · 7:00 PM PDT | 72.1°F |
| Oct 21 · 6:54 PM PDT | 72.1°F |
| Oct 21 · 6:48 PM PDT | 72.1°F |
| Oct 21 · 6:42 PM PDT | 72.1°F |
| Oct 21 · 6:36 PM PDT | 72.1°F |
| Oct 21 · 6:30 PM PDT | 72.1°F |
| Oct 21 · 6:24 PM PDT | 72.1°F |
| Oct 21 · 6:18 PM PDT | 72.1°F |
| Oct 21 · 6:12 PM PDT | 72.1°F |
| Oct 21 · 6:06 PM PDT | 72.0°F |
| Oct 21 · 6:00 PM PDT | 72.0°F |
| Oct 21 · 5:54 PM PDT | 72.0°F |
| Oct 21 · 5:48 PM PDT | 72.0°F |
| Oct 21 · 5:42 PM PDT | 72.0°F |
| Oct 21 · 5:36 PM PDT | 72.0°F |
| Oct 21 · 5:30 PM PDT | 72.0°F |
| Oct 21 · 5:24 PM PDT | 72.0°F |
| Oct 21 · 5:18 PM PDT | 72.0°F |
| Oct 21 · 5:12 PM PDT | 72.0°F |
| Oct 21 · 5:06 PM PDT | 72.0°F |
| Oct 21 · 5:00 PM PDT | 72.0°F |
| Oct 21 · 4:54 PM PDT | 72.0°F |
| Oct 21 · 4:48 PM PDT | 72.0°F |
| Oct 21 · 4:42 PM PDT | 72.0°F |
| Oct 21 · 4:36 PM PDT | 72.0°F |
| Oct 21 · 4:30 PM PDT | 72.0°F |
| Oct 21 · 4:24 PM PDT | 72.1°F |
| Oct 21 · 4:18 PM PDT | 72.1°F |
| Oct 21 · 4:12 PM PDT | 72.1°F |
| Oct 21 · 4:06 PM PDT | 72.1°F |
| Oct 21 · 4:00 PM PDT | 72.1°F |
| Oct 21 · 3:54 PM PDT | 72.1°F |
| Oct 21 · 3:48 PM PDT | 72.1°F |
| Oct 21 · 3:42 PM PDT | 72.1°F |
| Oct 21 · 3:36 PM PDT | 72.1°F |
| Oct 21 · 3:30 PM PDT | 72.1°F |
| Oct 21 · 3:24 PM PDT | 72.1°F |
| Oct 21 · 3:18 PM PDT | 72.1°F |
| Oct 21 · 3:12 PM PDT | 72.1°F |
| Oct 21 · 3:06 PM PDT | 72.1°F |
| Oct 21 · 3:00 PM PDT | 72.1°F |
| Oct 21 · 2:54 PM PDT | 72.1°F |
| Oct 21 · 2:48 PM PDT | 72.0°F |
| Oct 21 · 2:42 PM PDT | 72.0°F |
| Oct 21 · 2:36 PM PDT | 72.0°F |
| Oct 21 · 2:30 PM PDT | 72.0°F |
| Oct 21 · 2:24 PM PDT | 72.0°F |
| Oct 21 · 2:18 PM PDT | 72.0°F |
| Oct 21 · 2:12 PM PDT | 72.0°F |
| Oct 21 · 2:06 PM PDT | 72.0°F |
| Oct 21 · 2:00 PM PDT | 72.1°F |
| Oct 21 · 1:54 PM PDT | 72.1°F |
| Oct 21 · 1:48 PM PDT | 72.1°F |
| Oct 21 · 1:42 PM PDT | 72.1°F |
| Oct 21 · 1:36 PM PDT | 72.1°F |
| Oct 21 · 1:30 PM PDT | 72.1°F |
| Oct 21 · 1:24 PM PDT | 72.1°F |
| Oct 21 · 1:18 PM PDT | 72.1°F |
| Oct 21 · 1:12 PM PDT | 72.1°F |
| Oct 21 · 1:06 PM PDT | 72.1°F |
| Oct 21 · 1:00 PM PDT | 72.1°F |
| Oct 21 · 12:54 PM PDT | 72.1°F |
| Oct 21 · 12:48 PM PDT | 72.1°F |
| Oct 21 · 12:42 PM PDT | 72.1°F |
| Oct 21 · 12:36 PM PDT | 72.1°F |
| Oct 21 · 12:30 PM PDT | 72.1°F |
| Oct 21 · 12:24 PM PDT | 72.1°F |
| Oct 21 · 12:18 PM PDT | 72.1°F |
| Oct 21 · 12:12 PM PDT | 72.1°F |
| Oct 21 · 12:06 PM PDT | 72.1°F |
| Oct 21 · 12:00 PM PDT | 72.1°F |
| Oct 21 · 11:54 AM PDT | 72.1°F |
| Oct 21 · 11:48 AM PDT | 72.1°F |
| Oct 21 · 11:42 AM PDT | 72.1°F |
| Oct 21 · 11:36 AM PDT | 72.1°F |
| Oct 21 · 11:30 AM PDT | 72.1°F |
| Oct 21 · 11:24 AM PDT | 72.1°F |
| Oct 21 · 11:18 AM PDT | 72.1°F |
| Oct 21 · 11:12 AM PDT | 72.1°F |
| Oct 21 · 11:06 AM PDT | 72.1°F |
| Oct 21 · 11:00 AM PDT | 72.1°F |
| Oct 21 · 10:54 AM PDT | 72.1°F |
| Oct 21 · 10:48 AM PDT | 72.1°F |
| Oct 21 · 10:42 AM PDT | 72.1°F |
| Oct 21 · 10:36 AM PDT | 72.1°F |
| Oct 21 · 10:30 AM PDT | 72.1°F |
| Oct 21 · 10:24 AM PDT | 72.1°F |
| Oct 21 · 10:18 AM PDT | 72.1°F |
| Oct 21 · 10:12 AM PDT | 72.1°F |
| Oct 21 · 10:06 AM PDT | 72.1°F |
| Oct 21 · 10:00 AM PDT | 72.1°F |
| Oct 21 · 9:54 AM PDT | 72.1°F |
| Oct 21 · 9:48 AM PDT | 72.1°F |
| Oct 21 · 9:42 AM PDT | 72.1°F |
| Oct 21 · 9:36 AM PDT | 72.1°F |
| Oct 21 · 9:30 AM PDT | 72.1°F |
| Oct 21 · 9:24 AM PDT | 72.1°F |
| Oct 21 · 9:18 AM PDT | 72.1°F |
| Oct 21 · 9:12 AM PDT | 72.1°F |
| Oct 21 · 9:06 AM PDT | 72.1°F |
| Oct 21 · 9:00 AM PDT | 72.1°F |
| Oct 21 · 8:54 AM PDT | 72.1°F |
| Oct 21 · 8:48 AM PDT | 72.1°F |
| Oct 21 · 8:42 AM PDT | 72.1°F |
| Oct 21 · 8:36 AM PDT | 72.1°F |
| Oct 21 · 8:30 AM PDT | 72.1°F |
| Oct 21 · 8:24 AM PDT | 72.1°F |
| Oct 21 · 8:18 AM PDT | 72.1°F |
| Oct 21 · 8:12 AM PDT | 72.1°F |
| Oct 21 · 8:06 AM PDT | 72.1°F |
Latest 120 observations shown in this table.
OFFICIAL ASTRONOMICAL PREDICTIONS
Tides for October 21
NOAA prediction DaylightTimes in America/Los_Angeles
| Date | Event | Local time | Height |
|---|---|---|---|
| Wed, Oct 21 | ↘ Low | 12:50 AM PDT | 0.61 ft |
| ↗ High | 7:27 AM PDT | 4.54 ft | |
| ↘ Low | 1:08 PM PDT | 2.06 ft | |
| ↗ High | 6:51 PM PDT | 4.64 ft | |
| Thu, Oct 22 | ↘ Low | 1:18 AM PDT | 0.62 ft |
| ↗ High | 7:44 AM PDT | 4.95 ft | |
| ↘ Low | 1:43 PM PDT | 1.41 ft | |
| ↗ High | 7:36 PM PDT | 4.74 ft | |
| Fri, Oct 23 | ↘ Low | 1:44 AM PDT | 0.71 ft |
| ↗ High | 8:03 AM PDT | 5.40 ft | |
| ↘ Low | 2:19 PM PDT | 0.75 ft | |
| ↗ High | 8:19 PM PDT | 4.76 ft | |
| Sat, Oct 24 | ↘ Low | 2:10 AM PDT | 0.88 ft |
| ↗ High | 8:26 AM PDT | 5.86 ft | |
| ↘ Low | 2:56 PM PDT | 0.14 ft | |
| ↗ High | 9:02 PM PDT | 4.68 ft | |
| Sun, Oct 25 | ↘ Low | 2:37 AM PDT | 1.13 ft |
| ↗ High | 8:52 AM PDT | 6.27 ft | |
| ↘ Low | 3:36 PM PDT | -0.37 ft | |
| ↗ High | 9:47 PM PDT | 4.50 ft | |
| Mon, Oct 26 | ↘ Low | 3:06 AM PDT | 1.43 ft |
| ↗ High | 9:22 AM PDT | 6.57 ft | |
| ↘ Low | 4:20 PM PDT | -0.71 ft | |
| ↗ High | 10:36 PM PDT | 4.22 ft | |
| Tue, Oct 27 | ↘ Low | 3:37 AM PDT | 1.77 ft |
| ↗ High | 9:56 AM PDT | 6.71 ft | |
| ↘ Low | 5:08 PM PDT | -0.85 ft | |
| ↗ High | 11:32 PM PDT | 3.89 ft |
A LITTLE LONGER VIEW
Seasonal water temperatures
NOAA station observations · 2021–2025 baseline. Each published month has at least three qualifying years.
| Month | Mean | 10th–90th percentile | Years used |
|---|---|---|---|
| Jan | 58.0°F | 56.7°F – 59.4°F | 2021, 2022, 2023, 2024, 2025 |
| Feb | 58.2°F | 55.9°F – 60.3°F | 2021, 2022, 2023, 2024, 2025 |
| Mar | 58.0°F | 55.4°F – 60.8°F | 2021, 2022, 2023, 2024, 2025 |
| Apr | 59.3°F | 56.1°F – 62.2°F | 2021, 2022, 2023, 2024, 2025 |
| May | 62.3°F | 59.2°F – 65.1°F | 2021, 2022, 2023, 2024, 2025 |
| Jun | 65.8°F | 62.1°F – 69.3°F | 2021, 2022, 2023, 2024, 2025 |
| Jul | 67.6°F | 64.0°F – 71.1°F | 2021, 2022, 2023, 2024, 2025 |
| Aug | 68.8°F | 64.6°F – 72.5°F | 2021, 2022, 2023, 2024, 2025 |
| Sep | 68.7°F | 64.8°F – 72.7°F | 2021, 2022, 2023, 2024, 2025 |
| Oct | 65.2°F | 61.3°F – 68.0°F | 2021, 2022, 2023, 2024, 2025 |
| Nov | 61.8°F | 58.5°F – 64.6°F | 2021, 2022, 2023, 2024, 2025 |
| Dec | 60.2°F | 57.4°F – 63.0°F | 2021, 2022, 2023, 2024, 2025 |
All 12 months are shown. “Insufficient data” means fewer than three years meet 70% hourly coverage for that calendar month. Winter months use the same coverage rules; they are not deliberately excluded.
Hourly UTC observations, at least 70% coverage per station-month-year and at least three qualifying years per calendar month; 10th–90th percentiles of qualifying hourly observations.
BEHIND THE NUMBER
Know where your reading comes from.
A pier-based coastal reading for Santa Monica. Local depth, wind and time of day can change shoreline temperatures.
- Monitoring station
- Santa Monica · NOAA 9410840
- Coordinates
- 34.00830, -118.50000
- Water body
- Santa Monica Bay
- Source relationship
- Official NOAA station location; observation applies to the named sensor.
- Last successful collection
- Oct 21, 2026 · 8:10 PM PDT
- Tide reference
- MLLW · Mean Lower Low Water
To report an issue, include the station ID, observation time and source link when contacting the site operator. Read our methodology.
A LITTLE FARTHER ALONG
Nearby stations to compare
California · Pier
La Jolla
Pacific Ocean
72.9°F+0.0° vs 24h ago
Above usual October range
Next low tide1:09 AMThu · 0.60 ft MLLW
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California · Bay
San Diego Bay
San Diego Bay
74.7°F+0.0° vs 24h ago
Above usual October range
Next low tide1:11 AMThu · 0.67 ft MLLW
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California · Harbor
Port San Luis
San Luis Obispo Bay
66.9°F+0.4° vs 24h ago
Above usual October range
Next low tide1:50 AMThu · 0.78 ft MLLW
Observed