Tides4fishing cookies are used to personalise content and ads, save your recent fishing sites and remember your display settings. We also share information about your use of our site with our social media, advertising and analytics partners.
See details OK
tide table

TIDES Tidal coefficient

How do tides form? types of tides and influence sport fishing
HELP TIDES
tides
TIDES

TIDES WHAT IS THE TIDAL COEFFICIENT?

TIDES HELP  3/7
bahía de Fundy y Mont Saint-Michel Tidal range: Bay of Fundy ▲ / Mont Saint-Michel ▼

On the Tide Tables there are tidal coefficients which tell us the amplitude of the tide forecast (difference in height between the consecutive high tides and low tides in any given area).

The highest possible tidal coefficient is 120, corresponding to the greatest high or low tide there can be, excluding meteorological effects. Tidal coefficients are calculated from the following parameters or from the sun and the moon: straight ascension, declination, parallax and the distance between the Earth and the celestial body.

Despite tidal coefficients being the same for the whole planet, they affect the amplitude of the tides in a very different manner, depending on where we are. This variation in amplitude is almost null and void in closed seas, apart from where there is local resonance (e.g. it can be up to 3ft in Venice); it is weak in mid-ocean, but tends to be considerably amplified when extending to the continental coasts.

The greatest tides in the world are produced in the Bay of Fundy, Canada (53 ft) and in the Bay of Mont Saint-Michel, France (50 ft).

The amplitude of the tides varies in space and time.

Saint-Malo Saint-Malo (France)

in space

There are tides of weak intensity (in the areas close to the terrestrial equator, the tides barely reach tens of centimetres). In other places there are tides of high intensity (for example: the French coasts of the Saint-Malo Bay), where they regularly exceed 30 ft.

in time

The coefficient and therefore the amplitude of the tides follow the phases of the moon with slight disparity during waxing and waning moons; and extensive disparity at times of new moon and full moon. The differences in amplitude between low tides and high tides present great contrasts. In Saint-Malo the difference in level between high tide and low tide is reduced to 10 ft in periods of low tides; and goes as high as 40 ft in periods of high tides.



Coeficiente de marea

ANNUAL TABLE TIDAL COEFFICIENT

YEAR 2017

Fishers tend to have ideal values for tidal coefficients depending on each location. We know that large coefficients can produce optimal seabed movements for fishing in some places, but perhaps elsewhere they may drag too much algae and dirt, making fishing impractical.

In the following table find the coefficients of your favorite tides for fishing in the year 2017.

DAY JAN FEB MAR APR MAY JUN
1787680759793766963575252
2737071668882625553505253
3686462587669514850515558
4625956556357485053576063
5585755575350545860646568
6586060654952636968727072
7626670765560737874777475
8707581866572828579817677
9798490947782878982837776
10899396988690909183837775
11969898989395908981807472
12999996939696878479767068
13989690869593817873706662
14949082769087736967626158
15868171658479655959545654
16767060547468555052485353
17655949436457464146445456
18554940365247383744455862
19464335354238373947516671
20414036403434434856627681
21394244503538546168758691
22444856624147687681879498
235156677453618289929799101
2461658085677495101101104101100
257075909581891051081051069895
26788297100941001091101051029187
27858710210210410710810599948277
2889911021001081091019689837267
299292108105908378726258
30908810296766966615451
31868391835754
DAY JUL AUG SEP OCT NOV DEC
1494942434854596585919297
2484946505965727896101101103
35153535871768490104106105105
45558616681859599107107104102
56164697389921021041051029894
667697779959710510497918983
771738284979710310085787771
8757686879694969072656661
9777988879187847759545754
10787886848276706352515252
11787682797164575251545355
12757376725954494957615759
13726968645150505465696265
14676460575155596473766770
15626055555965707579827274
16595856597178808484857577
17586063688388889186857878
18626573799296929484847878
19697484909899949382797875
20798493979998928977747572
218892991009693878371677066
229598100998985797464596462
23999997938075706455505955
24999790857063595347445351
25949180745852494442405049
26878268624641403641445051
27777156503733343546515458
28666046413334374156626268
29565138363640455268757379
30474436374653576581878489
314241404471799498
[ Coefficient 12 am / Coefficient 12 pm ]
coeficiente bajo
low
coeficiente medio
average
coeficiente alto
high
coeficiente muy alto
very high

Next article: Tide currents
tide table
© TIDES4FISHING | TIDAL COEFFICIENT
Find your fishing location
Find your fishing location
Share a day of fishing with friends
Tides4fishing cookies are used to personalise content and ads, save your recent fishing sites and remember your display settings. We also share information about your use of our site with our social media, advertising and analytics partners.