Today's high and low tide times for Cardiff, Wales, plus a 7-day tide table. Astronomical predictions from the nearest harmonic station — free and updated daily.
In Cardiff, Wales, the next high tide is at 9:00 AM (12.54 m) and the next low tide is at 2:54 AM (1.04 m), based on harmonic predictions for Penarth.
All high and low tides for Cardiff today, in local time (Europe/London). Heights are metres above chart datum.
High (H) and low (L) tide times and heights for the next seven days at Cardiff.
| Date | Tides (local time · height) |
|---|---|
| Thu, Jul 16 | L 2:54 AM 1.04 mH 9:00 AM 12.54 mL 3:15 PM 0.81 mH 9:24 PM 12.39 m |
| Fri, Jul 17 | L 3:36 AM 0.99 mH 9:45 AM 12.55 mL 3:57 PM 0.88 mH 10:06 PM 12.26 m |
| Sat, Jul 18 | L 4:15 AM 1.16 mH 10:27 AM 12.31 mL 4:39 PM 1.19 mH 10:48 PM 11.91 m |
| Sun, Jul 19 | L 4:54 AM 1.54 mH 11:09 AM 11.86 mL 5:18 PM 1.68 mH 11:30 PM 11.38 m |
| Mon, Jul 20 | L 5:36 AM 2.09 mH 11:51 AM 11.24 mL 5:57 PM 2.33 m |
| Tue, Jul 21 | H 12:15 AM 10.73 mL 6:18 AM 2.75 mH 12:36 PM 10.52 mL 6:42 PM 3.05 m |
| Wed, Jul 22 | H 1:03 AM 10.02 mL 7:03 AM 3.44 mH 1:27 PM 9.78 mL 7:30 PM 3.77 m |
Predicted from Penarth, 5.3 km away (reliability: high — a close match — expect predictions within a few minutes of the published station table).
These are astronomical tide predictions — the rise and fall driven by the moon and sun, computed by harmonic analysis. They do not include weather effects: a strong onshore wind, low barometric pressure or a storm surge can push the real water level above the predicted high, and offshore winds or high pressure can hold it below the predicted low. For navigation or any safety-critical decision, always check the official tide tables and a live water-level gauge for Cardiff.
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