Florida · Island
Key West
Florida Straits
82.0°F-0.5° vs 24h ago
Next low tide1:15 AMThu · 0.96 ft MLLW
Observed
Biscayne Bay · Island
Virginia Key
Water temperature & tides
WATER TEMPERATURE Station observation
81.1°F
10th–90th percentile: 79.3°F – 86.7°F · 2021–2025.
Seasonal context, not a failed sensor quality check. Compared with hourly observations in the same UTC calendar month.
Last available observation
81.1°F ·
Historical reading, over 24 hours old. It is excluded from current temperatures and comparisons.
-0.5° 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 Virginia Key. Gaps are left visible.
View observation table
| Local date & time | Water temperature |
|---|---|
| Oct 21 · 11:00 PM EDT | 81.1°F |
| Oct 21 · 10:54 PM EDT | 81.1°F |
| Oct 21 · 10:48 PM EDT | 81.1°F |
| Oct 21 · 10:42 PM EDT | 81.1°F |
| Oct 21 · 10:36 PM EDT | 81.1°F |
| Oct 21 · 10:30 PM EDT | 81.1°F |
| Oct 21 · 10:24 PM EDT | 81.3°F |
| Oct 21 · 10:18 PM EDT | 81.3°F |
| Oct 21 · 10:12 PM EDT | 81.3°F |
| Oct 21 · 10:06 PM EDT | 81.5°F |
| Oct 21 · 10:00 PM EDT | 81.5°F |
| Oct 21 · 9:54 PM EDT | 81.5°F |
| Oct 21 · 9:48 PM EDT | 81.5°F |
| Oct 21 · 9:42 PM EDT | 81.5°F |
| Oct 21 · 9:36 PM EDT | 81.5°F |
| Oct 21 · 9:30 PM EDT | 81.5°F |
| Oct 21 · 9:24 PM EDT | 81.5°F |
| Oct 21 · 9:18 PM EDT | 81.7°F |
| Oct 21 · 9:12 PM EDT | 81.7°F |
| Oct 21 · 9:06 PM EDT | 81.7°F |
| Oct 21 · 9:00 PM EDT | 81.7°F |
| Oct 21 · 8:54 PM EDT | 81.9°F |
| Oct 21 · 8:48 PM EDT | 81.9°F |
| Oct 21 · 8:42 PM EDT | 81.9°F |
| Oct 21 · 8:36 PM EDT | 82.0°F |
| Oct 21 · 8:30 PM EDT | 82.0°F |
| Oct 21 · 8:24 PM EDT | 82.2°F |
| Oct 21 · 8:18 PM EDT | 82.2°F |
| Oct 21 · 8:12 PM EDT | 82.2°F |
| Oct 21 · 8:06 PM EDT | 82.4°F |
| Oct 21 · 8:00 PM EDT | 82.4°F |
| Oct 21 · 7:54 PM EDT | 82.4°F |
| Oct 21 · 7:48 PM EDT | 82.4°F |
| Oct 21 · 7:42 PM EDT | 82.4°F |
| Oct 21 · 7:36 PM EDT | 82.4°F |
| Oct 21 · 7:30 PM EDT | 82.4°F |
| Oct 21 · 7:24 PM EDT | 82.4°F |
| Oct 21 · 7:18 PM EDT | 82.6°F |
| Oct 21 · 7:12 PM EDT | 82.6°F |
| Oct 21 · 7:06 PM EDT | 82.8°F |
| Oct 21 · 7:00 PM EDT | 82.8°F |
| Oct 21 · 6:54 PM EDT | 82.8°F |
| Oct 21 · 6:48 PM EDT | 82.8°F |
| Oct 21 · 6:42 PM EDT | 82.8°F |
| Oct 21 · 6:36 PM EDT | 82.8°F |
| Oct 21 · 6:30 PM EDT | 82.8°F |
| Oct 21 · 6:24 PM EDT | 82.6°F |
| Oct 21 · 6:18 PM EDT | 82.6°F |
| Oct 21 · 6:12 PM EDT | 82.6°F |
| Oct 21 · 6:06 PM EDT | 82.6°F |
| Oct 21 · 6:00 PM EDT | 82.4°F |
| Oct 21 · 5:54 PM EDT | 82.4°F |
| Oct 21 · 5:48 PM EDT | 82.4°F |
| Oct 21 · 5:42 PM EDT | 82.2°F |
| Oct 21 · 5:36 PM EDT | 82.2°F |
| Oct 21 · 5:30 PM EDT | 82.2°F |
| Oct 21 · 5:24 PM EDT | 82.2°F |
| Oct 21 · 5:18 PM EDT | 82.0°F |
| Oct 21 · 5:12 PM EDT | 82.0°F |
| Oct 21 · 5:06 PM EDT | 82.0°F |
| Oct 21 · 5:00 PM EDT | 82.0°F |
| Oct 21 · 4:54 PM EDT | 82.0°F |
| Oct 21 · 4:48 PM EDT | 82.0°F |
| Oct 21 · 4:42 PM EDT | 82.0°F |
| Oct 21 · 4:36 PM EDT | 82.0°F |
| Oct 21 · 4:30 PM EDT | 82.0°F |
| Oct 21 · 4:24 PM EDT | 81.9°F |
| Oct 21 · 4:18 PM EDT | 81.9°F |
| Oct 21 · 4:12 PM EDT | 81.9°F |
| Oct 21 · 4:06 PM EDT | 81.9°F |
| Oct 21 · 4:00 PM EDT | 81.9°F |
| Oct 21 · 3:54 PM EDT | 81.7°F |
| Oct 21 · 3:48 PM EDT | 81.7°F |
| Oct 21 · 3:42 PM EDT | 81.7°F |
| Oct 21 · 3:36 PM EDT | 81.5°F |
| Oct 21 · 3:30 PM EDT | 81.5°F |
| Oct 21 · 3:24 PM EDT | 81.5°F |
| Oct 21 · 3:18 PM EDT | 81.5°F |
| Oct 21 · 3:12 PM EDT | 81.5°F |
| Oct 21 · 3:06 PM EDT | 81.5°F |
| Oct 21 · 3:00 PM EDT | 81.5°F |
| Oct 21 · 2:54 PM EDT | 81.7°F |
| Oct 21 · 2:48 PM EDT | 81.5°F |
| Oct 21 · 2:42 PM EDT | 81.5°F |
| Oct 21 · 2:36 PM EDT | 81.3°F |
| Oct 21 · 2:30 PM EDT | 81.3°F |
| Oct 21 · 2:24 PM EDT | 81.1°F |
| Oct 21 · 2:18 PM EDT | 81.0°F |
| Oct 21 · 2:12 PM EDT | 81.0°F |
| Oct 21 · 2:06 PM EDT | 80.8°F |
| Oct 21 · 2:00 PM EDT | 80.8°F |
| Oct 21 · 1:54 PM EDT | 80.8°F |
| Oct 21 · 1:48 PM EDT | 80.8°F |
| Oct 21 · 1:42 PM EDT | 80.8°F |
| Oct 21 · 1:36 PM EDT | 80.8°F |
| Oct 21 · 1:30 PM EDT | 80.8°F |
| Oct 21 · 1:24 PM EDT | 80.8°F |
| Oct 21 · 1:18 PM EDT | 80.8°F |
| Oct 21 · 1:12 PM EDT | 80.6°F |
| Oct 21 · 1:06 PM EDT | 80.4°F |
| Oct 21 · 1:00 PM EDT | 80.4°F |
| Oct 21 · 12:54 PM EDT | 80.4°F |
| Oct 21 · 12:48 PM EDT | 80.4°F |
| Oct 21 · 12:42 PM EDT | 80.4°F |
| Oct 21 · 12:36 PM EDT | 80.4°F |
| Oct 21 · 12:30 PM EDT | 80.4°F |
| Oct 21 · 12:24 PM EDT | 80.4°F |
| Oct 21 · 12:18 PM EDT | 80.4°F |
| Oct 21 · 12:12 PM EDT | 80.4°F |
| Oct 21 · 12:06 PM EDT | 80.4°F |
| Oct 21 · 12:00 PM EDT | 80.2°F |
| Oct 21 · 11:54 AM EDT | 80.2°F |
| Oct 21 · 11:48 AM EDT | 80.2°F |
| Oct 21 · 11:42 AM EDT | 80.2°F |
| Oct 21 · 11:36 AM EDT | 80.2°F |
| Oct 21 · 11:30 AM EDT | 80.2°F |
| Oct 21 · 11:24 AM EDT | 80.2°F |
| Oct 21 · 11:18 AM EDT | 80.1°F |
| Oct 21 · 11:12 AM EDT | 80.1°F |
| Oct 21 · 11:06 AM EDT | 80.1°F |
Latest 120 observations shown in this table.
OFFICIAL ASTRONOMICAL PREDICTIONS
Tides for October 21
NOAA prediction DaylightTimes in America/New_York
| Date | Event | Local time | Height |
|---|---|---|---|
| Wed, Oct 21 | ↗ High | 5:43 AM EDT | 2.36 ft |
| ↘ Low | 11:51 AM EDT | 0.84 ft | |
| ↗ High | 6:10 PM EDT | 2.45 ft | |
| Thu, Oct 22 | ↘ Low | 12:15 AM EDT | 0.79 ft |
| ↗ High | 6:36 AM EDT | 2.50 ft | |
| ↘ Low | 12:39 PM EDT | 0.77 ft | |
| ↗ High | 6:55 PM EDT | 2.55 ft | |
| Fri, Oct 23 | ↘ Low | 1:00 AM EDT | 0.63 ft |
| ↗ High | 7:24 AM EDT | 2.65 ft | |
| ↘ Low | 1:25 PM EDT | 0.71 ft | |
| ↗ High | 7:37 PM EDT | 2.64 ft | |
| Sat, Oct 24 | ↘ Low | 1:44 AM EDT | 0.48 ft |
| ↗ High | 8:11 AM EDT | 2.78 ft | |
| ↘ Low | 2:10 PM EDT | 0.65 ft | |
| ↗ High | 8:20 PM EDT | 2.72 ft | |
| Sun, Oct 25 | ↘ Low | 2:28 AM EDT | 0.35 ft |
| ↗ High | 8:58 AM EDT | 2.89 ft | |
| ↘ Low | 2:56 PM EDT | 0.61 ft | |
| ↗ High | 9:04 PM EDT | 2.78 ft | |
| Mon, Oct 26 | ↘ Low | 3:13 AM EDT | 0.25 ft |
| ↗ High | 9:44 AM EDT | 2.96 ft | |
| ↘ Low | 3:42 PM EDT | 0.59 ft | |
| ↗ High | 9:48 PM EDT | 2.81 ft | |
| Tue, Oct 27 | ↘ Low | 3:58 AM EDT | 0.19 ft |
| ↗ High | 10:31 AM EDT | 2.98 ft | |
| ↘ Low | 4:27 PM EDT | 0.60 ft | |
| ↗ High | 10:34 PM EDT | 2.81 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 | 73.4°F | 70.3°F – 76.6°F | 2021, 2022, 2023, 2024, 2025 |
| Feb | 74.7°F | 70.7°F – 78.6°F | 2021, 2022, 2023, 2024, 2025 |
| Mar | 76.9°F | 74.1°F – 80.1°F | 2021, 2022, 2023, 2024, 2025 |
| Apr | 79.1°F | 76.3°F – 82.2°F | 2021, 2022, 2023, 2024, 2025 |
| May | 83.7°F | 80.2°F – 87.3°F | 2021, 2022, 2023, 2024, 2025 |
| Jun | 85.8°F | 83.3°F – 88.0°F | 2021, 2022, 2023, 2024, 2025 |
| Jul | 88.3°F | 86.2°F – 90.3°F | 2021, 2022, 2023, 2024, 2025 |
| Aug | 88.6°F | 86.2°F – 91.0°F | 2021, 2022, 2023, 2024, 2025 |
| Sep | 87.4°F | 85.3°F – 89.8°F | 2021, 2022, 2023, 2024, 2025 |
| Oct | 82.9°F | 79.3°F – 86.7°F | 2021, 2022, 2023, 2024, 2025 |
| Nov | 78.7°F | 75.9°F – 81.1°F | 2021, 2022, 2023, 2024, 2025 |
| Dec | 75.7°F | 72.1°F – 79.7°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.
This page uses the Virginia Key monitoring station. It offers local context without assigning one reading to all Miami beaches.
- Monitoring station
- Virginia Key · NOAA 8723214
- Coordinates
- 25.73140, -80.16180
- Water body
- Biscayne Bay
- Source relationship
- Official NOAA station location; observation applies to the named sensor.
- Last successful collection
- Oct 21, 2026 · 11:10 PM EDT
- 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
Florida · Coast
Clearwater Beach
Gulf of Mexico
74.7°F-0.2° vs 24h ago
Next low tide3:38 AMThu · 1.24 ft MLLW
Observed
Florida · Harbor
Mayport
St. Johns River entrance
72.0°F-0.2° vs 24h ago
Below usual October range
Next low tide11:43 PMWed · 1.15 ft MLLW
Observed
Florida · Coast
Panama City Beach
Gulf of Mexico
76.5°F-0.4° vs 24h ago
Next low tide11:13 PMWed · 0.97 ft MLLW
Observed