Today's high and low tide times for Belfast, Northern Ireland, plus a 7-day tide table. Astronomical predictions from the nearest harmonic station — free and updated daily.
In Belfast, Northern Ireland, the next high tide is at 1:39 AM (4.12 m) and the next low tide is at 7:48 AM (0.53 m), based on harmonic predictions for Portpatrick.
All high and low tides for Belfast 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 Belfast.
| Date | Tides (local time · height) |
|---|---|
| Wed, Jun 17 | H 1:39 AM 4.12 mL 7:48 AM 0.53 mH 1:57 PM 4.21 mL 8:15 PM 0.38 m |
| Thu, Jun 18 | H 2:27 AM 4.05 mL 8:33 AM 0.61 mH 2:45 PM 4.16 mL 9:03 PM 0.45 m |
| Fri, Jun 19 | H 3:15 AM 3.93 mL 9:21 AM 0.73 mH 3:33 PM 4.06 mL 9:54 PM 0.57 m |
| Sat, Jun 20 | H 4:06 AM 3.77 mL 10:09 AM 0.89 mH 4:24 PM 3.92 mL 10:45 PM 0.72 m |
| Sun, Jun 21 | H 5:00 AM 3.61 mL 11:03 AM 1.05 mH 5:18 PM 3.76 mL 11:42 PM 0.88 m |
| Mon, Jun 22 | H 6:00 AM 3.45 mL 12:00 PM 1.20 mH 6:18 PM 3.61 m |
| Tue, Jun 23 | L 12:42 AM 1.03 mH 7:00 AM 3.34 mL 1:03 PM 1.30 mH 7:21 PM 3.50 m |
Predicted from Portpatrick, 58.7 km away (reliability: medium — a moderate distance — local times may differ by 10–30 minutes from the open coast).
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 Belfast.
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