Swansea tide calendar, December 2026
High and low tides in local time (Europe/London), heights in m above Lowest Astronomical Tide, calculated by Marinalo over 19 years.
| Day | Tide 1 | Tide 2 | Tide 3 | Tide 4 |
|---|---|---|---|---|
| Tue 1 | Low 05:11 2.6 m | High 11:30 7.9 m | Low 17:54 2.5 m | |
| Wed 2 | High 00:05 7.4 m | Low 06:21 2.8 m | High 12:37 7.7 m | Low 19:03 2.6 m |
| Thu 3 | High 01:13 7.4 m | Low 07:30 2.8 m | High 13:45 7.7 m | Low 20:06 2.5 m |
| Fri 4 | High 02:17 7.5 m | Low 08:33 2.6 m | High 14:48 7.9 m | Low 21:02 2.3 m |
| Sat 5 | High 03:16 7.8 m | Low 09:29 2.3 m | High 15:44 8.1 m | Low 21:52 2.1 m |
| Sun 6 | High 04:08 8.1 m | Low 10:18 2.1 m | High 16:32 8.3 m | Low 22:36 2.0 m |
| Mon 7 | High 04:54 8.3 m | Low 11:02 2.0 m | High 17:16 8.4 m | Low 23:16 1.9 m |
| Tue 8 | High 05:35 8.4 m | Low 11:42 1.9 m | High 17:55 8.4 m | Low 23:54 1.9 m |
| Wed 9 | High 06:14 8.4 m | Low 12:19 1.9 m | High 18:32 8.4 m | |
| Thu 10 | Low 00:29 1.9 m | High 06:49 8.4 m | Low 12:52 2.0 m | High 19:07 8.3 m |
| Fri 11 | Low 01:01 2.0 m | High 07:22 8.4 m | Low 13:23 2.0 m | High 19:40 8.2 m |
| Sat 12 | Low 01:33 2.1 m | High 07:54 8.3 m | Low 13:54 2.1 m | High 20:12 8.0 m |
| Sun 13 | Low 02:05 2.2 m | High 08:25 8.2 m | Low 14:24 2.2 m | High 20:44 7.9 m |
| Mon 14 | Low 02:37 2.3 m | High 08:57 8.1 m | Low 14:57 2.4 m | High 21:19 7.7 m |
| Tue 15 | Low 03:13 2.5 m | High 09:33 7.9 m | Low 15:34 2.6 m | High 21:58 7.4 m |
| Wed 16 | Low 03:54 2.7 m | High 10:14 7.6 m | Low 16:19 2.8 m | High 22:45 7.2 m |
| Thu 17 | Low 04:44 2.9 m | High 11:05 7.4 m | Low 17:20 3.0 m | High 23:46 7.1 m |
| Fri 18 | Low 05:49 3.1 m | High 12:11 7.3 m | Low 18:36 3.1 m | |
| Sat 19 | High 00:56 7.1 m | Low 07:04 3.0 m | High 13:25 7.4 m | Low 19:49 2.8 m |
| Sun 20 | High 02:06 7.4 m | Low 08:15 2.8 m | High 14:36 7.7 m | Low 20:53 2.5 m |
| Mon 21 | High 03:11 7.8 m | Low 09:19 2.3 m | High 15:39 8.1 m | Low 21:52 2.1 m |
| Tue 22 | High 04:11 8.3 m | Low 10:19 1.9 m | High 16:38 8.5 m | Low 22:48 1.8 m |
| Wed 23 | High 05:09 8.7 m | Low 11:17 1.5 m | High 17:34 8.9 m | Low 23:43 1.5 m |
| Thu 24 | High 06:04 9.1 m | Low 12:13 1.2 m | High 18:29 9.1 m | |
| Fri 25 | Low 00:38 1.3 m | High 06:58 9.3 m | Low 13:07 1.0 m | High 19:21 9.2 m |
| Sat 26 | Low 01:30 1.3 m | High 07:48 9.5 m | Low 13:58 1.0 m | High 20:12 9.1 m |
| Sun 27 | Low 02:20 1.3 m | High 08:36 9.4 m | Low 14:46 1.1 m | High 20:59 8.9 m |
| Mon 28 | Low 03:06 1.5 m | High 09:22 9.2 m | Low 15:32 1.4 m | High 21:46 8.7 m |
| Tue 29 | Low 03:51 1.7 m | High 10:08 8.9 m | Low 16:18 1.8 m | High 22:32 8.3 m |
| Wed 30 | Low 04:37 2.1 m | High 10:56 8.4 m | Low 17:08 2.2 m | High 23:22 7.9 m |
| Thu 31 | Low 05:29 2.5 m | High 11:49 8.0 m | Low 18:05 2.6 m |
Calculated by Marinalo from the Mumbles tide station: TICON-4: Hart-Davis et al., DGFI-TUM, CC BY 4.0, doi:10.17882/109129. Not for navigation. How we calculate tides.