Month summary
In January 2027 the highest coefficient is 108, on January 24, and the lowest 35, on January 31. There are 7 days of spring tides (coefficient 80 or more).
October 2026November 2026December 2026January 2027February 2027March 2027April 2027May 2027June 2027July 2027August 2027September 2027October 2027
Which days in January have spring tides?
neap tides: coefficient < 40mid-range tides: 40–79spring tides: 80+
Tide coefficient day by day, January 2027
| Day | Coefficient | By Brest high water (Paris time) | Moon |
|---|---|---|---|
| Fri 1 | 49 | 11:42: 49 | Last quarter |
| Sat 2 | 47 | 00:16: 47 · 12:50: 46 | Waning crescent |
| Sun 3 | 47 | 01:24: 46 · 13:56: 47 | Waning crescent |
| Mon 4 | 52 | 02:27: 49 · 14:54: 52 | Waning crescent |
| Tue 5 | 58 | 03:20: 55 · 15:43: 58 | Waning crescent |
| Wed 6 | 65 | 04:05: 62 · 16:25: 65 | New moon |
| Thu 7 | 70 | 04:45: 68 · 17:03: 70 | New moon |
| Fri 8 | 74 | 05:21: 73 · 17:38: 74 | New moon |
| Sat 9 | 77 | 05:54: 76 · 18:10: 77 | New moon |
| Sun 10 | 77 | 06:26: 77 · 18:42: 77 | Waxing crescent |
| Mon 11 | 76 | 06:58: 76 · 19:14: 75 | Waxing crescent |
| Tue 12 | 74 | 07:30: 74 · 19:46: 72 | Waxing crescent |
| Wed 13 | 69 | 08:03: 69 · 20:20: 67 | Waxing crescent |
| Thu 14 | 64 | 08:39: 64 · 20:59: 61 | First quarter |
| Fri 15 | 57 | 09:21: 57 · 21:46: 54 | First quarter |
| Sat 16 | 50 | 10:14: 50 · 22:47: 48 | First quarter |
| Sun 17 | 46 | 11:24: 46 | Waxing gibbous |
| Mon 18 | 47 | 00:06: 45 · 12:49: 47 | Waxing gibbous |
| Tue 19 | 56 | 01:32: 51 · 14:11: 56 | Waxing gibbous |
| Wed 20 | 71 | 02:46: 63 · 15:18: 71 | Waxing gibbous |
| Thu 21 | 86 | 03:48: 78 · 16:15: 86 | Full moon |
| Fri 22 | 98 | 04:41: 93 · 17:06: 98 | Full moon |
| Sat 23 | 106 | 05:30: 103 · 17:53: 106 | Full moon |
| Sun 24 | 108 | 06:15: 108 · 18:37: 108 | Waning gibbous |
| Mon 25 | 106 | 06:58: 106 · 19:19: 103 | Waning gibbous |
| Tue 26 | 99 | 07:40: 99 · 20:01: 93 | Waning gibbous |
| Wed 27 | 87 | 08:21: 87 · 20:42: 80 | Waning gibbous |
| Thu 28 | 73 | 09:02: 73 · 21:24: 65 | Last quarter |
| Fri 29 | 58 | 09:47: 58 · 22:12: 51 | Last quarter |
| Sat 30 | 45 | 10:41: 45 · 23:14: 39 | Last quarter |
| Sun 31 | 35 | 11:52: 35 | Last quarter |
What does the coefficient mean?
A low coefficient (neap tides) means little difference between high and low water; a high one (spring tides), a lot. It runs from 20 to 120 and is the same number all along the Atlantic coast of Europe; the metres change from port to port.
Where does the coefficient come from?
The coefficient uses the Brest reference and the 20–120 scale of the SHOM, the French hydrographic service, computed by the Tides Pro engine.
Frequently asked questions
What is the highest tide coefficient in January 2027?
108, on January 24.
How many spring tide days are there in January 2027?
7 days with a coefficient of 80 or more.