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Sidmouth (Lyme Bay) Seasonal Surf Averages

Based on the last ten years data for this location this page gives seasonal trends and an idea of what kind of conditions you can expect and when. Of course these are just averages - it's worth reading carefully to understand exactly what they mean and to recognise the kind of variation you could expect on a trip because an average can never tell the whole story. Click on a month below to see more detail.
If you want a past forecast for a specific date range then click here.

Local Photo


Swell Consistency and Wind Overview

Wind Swell Ground Swell
70%
57%

13%

Jan
60%
46%

14%

Feb
55%
44%

11%

Mar
45%
25%

20%

Apr
37%
11%

26%

May
35%
8%

27%

Jun
25%
3%

22%

Jul
23%
2%

21%

Aug
39%
18%

21%

Sep
51%
25%

26%

Oct
52%
34%

18%

Nov
62%
42%

20%

Dec
This graph shows the percentage of days that had a ridable wind swell (7 seconds period or more) or groundswell (10 seconds period or more) of over 3ft. It also shows the dominant wind direction. Not all of these days will neccessarily give great surf, and very short lived wind swells or longer period secondary swells may produce surf not recorded, but it gives a clear idea of the seasonal trend and a rough guide to the chances of scoring something ridable.

Monthly Overview

Jan
Swell
Consistency
70%
Average Swell
Height
8ft
Average Swell
Period
12s
Dominant Wind
Dominant Swell
Feb
Swell
Consistency
60%
Average Swell
Height
7ft
Average Swell
Period
12s
Dominant Wind
Dominant Swell
Mar
Swell
Consistency
55%
Average Swell
Height
6ft
Average Swell
Period
11s
Dominant Wind
Dominant Swell
Apr
Swell
Consistency
45%
Average Swell
Height
5ft
Average Swell
Period
10s
Dominant Wind
Dominant Swell
May
Swell
Consistency
37%
Average Swell
Height
4ft
Average Swell
Period
9s
Dominant Wind
Dominant Swell
Jun
Swell
Consistency
35%
Average Swell
Height
4ft
Average Swell
Period
9s
Dominant Wind
Dominant Swell
Jul
Swell
Consistency
25%
Average Swell
Height
3ft
Average Swell
Period
9s
Dominant Wind
Dominant Swell
Aug
Swell
Consistency
23%
Average Swell
Height
3ft
Average Swell
Period
9s
Dominant Wind
Dominant Swell
Sep
Swell
Consistency
39%
Average Swell
Height
4ft
Average Swell
Period
10s
Dominant Wind
Dominant Swell
Oct
Swell
Consistency
51%
Average Swell
Height
7ft
Average Swell
Period
10s
Dominant Wind
Dominant Swell
Nov
Swell
Consistency
52%
Average Swell
Height
7ft
Average Swell
Period
11s
Dominant Wind
Dominant Swell
Dec
Swell
Consistency
62%
Average Swell
Height
8ft
Average Swell
Period
11s
Dominant Wind
Dominant Swell

Understanding this Data

These swell averages are calculated ONLY on swells of more than 7 seconds period. This means this is the average height of a swell that's likely to produce ridable surf NOT an average of every wave heading toward the beach in a month. Likewise the period is the average period OVER 7 seconds. There will be days that have short period wind swells that won't produce and ridable swell and these are excluded from the averages. The consistency figure gives the percentage of days that meet this condition.

For example if the consistency is 50% you could expect the 'average' swell for about 15 days in the month. Of course an average tells only part of the story. A combination of very large and very small swells may produce the same average as a consistent medium sized swell.

Monthly Data

January
February
March
April
May
June
July
August
September
October
November
December

Nearby Spots

Teignmouth
Lyme Regis
Torbay
Paignton
Bantham
Challaborough
Wembury
Porthcawl - Coney Beach
Porthcawl - Rest Bay
Whitsand Bay
Westward Ho!
Aberavon
Saunton Sands
Putsborough
Woolacombe
Croyde Beach
Kimmeridge
Langland Bay
Hunts Bay
Bude - Summerleaze
Bude - Crooklets
Widemouth Bay
Sandymouth
Perelle Bay - Dom Hue - Guernsey
Portinfer - Guernsey
Vazon Bay - Beach - Guernsey
Bournemouth
L'Ancresse Bay - Guernsey
Fort Le Marchant - Guernsey
Boscombe
Crackington Haven
Llangennith
Southbourne
Highcliffe
Polzeath
Isle of Wight - Freshwater
Plemont Bay - Jersey
Stinky Bay - Jersey
Secrets - Jersey
Isle of Wight - Compton
Harlyn
Greve de Lecq - Jersey
Tenby South Beach
Dielette
Siouville
La Rocco - Jersey
Jersey
Les Brayes - Jersey
Constantine
Petite Port - Jersey
Treyarnon
Mawgan Porth
St Brelades - Jersey
Watergate Bay
Le Rozel
Whipsiderry
Manorbier
Newquay - Porth
Lusty Glaze
Newquay - Tolcarne Wedge
Newquay - Towan / Great Western
Trestaou
Newquay- Little Fistral
Newquay - Fistral North
Newquay - Cribbar
Newquay - Fistral South
Hatainville
Crantock
Falmouth
Holywell Bay