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Treasure Island 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
6%
 
6%

Jan
5%
 
5%

Feb
5%
 
5%

Mar
2%
 
2%

Apr
0%
 
0%

May
1%
 
1%

Jun
1%
 
1%

Jul
2%
1%

1%

Aug
8%
1%

7%

Sep
1%
1%

0%

Oct
3%
 
3%

Nov
7%
 
7%

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
6%
Average Swell
Height
5ft
Average Swell
Period
8s
Dominant Wind
Dominant Swell
Feb
Swell
Consistency
5%
Average Swell
Height
6ft
Average Swell
Period
8s
Dominant Wind
Dominant Swell
Mar
Swell
Consistency
5%
Average Swell
Height
6ft
Average Swell
Period
8s
Dominant Wind
Dominant Swell
Apr
Swell
Consistency
2%
Average Swell
Height
5ft
Average Swell
Period
8s
Dominant Wind
Dominant Swell
May
Swell
Consistency
0%
Average Swell
Height
1ft
Average Swell
Period
0s
Dominant Wind
Dominant Swell
Jun
Swell
Consistency
1%
Average Swell
Height
3ft
Average Swell
Period
7s
Dominant Wind
Dominant Swell
Jul
Swell
Consistency
1%
Average Swell
Height
4ft
Average Swell
Period
8s
Dominant Wind
Dominant Swell
Aug
Swell
Consistency
2%
Average Swell
Height
3ft
Average Swell
Period
9s
Dominant Wind
Dominant Swell
Sep
Swell
Consistency
8%
Average Swell
Height
6ft
Average Swell
Period
8s
Dominant Wind
Dominant Swell
Oct
Swell
Consistency
1%
Average Swell
Height
2ft
Average Swell
Period
10s
Dominant Wind
Dominant Swell
Nov
Swell
Consistency
3%
Average Swell
Height
4ft
Average Swell
Period
8s
Dominant Wind
Dominant Swell
Dec
Swell
Consistency
7%
Average Swell
Height
6ft
Average Swell
Period
8s
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

Maderia Beach
Redington Rocks
St Pete Beach
Pass-A-Grille Jetty
Indian Rocks
Clearwater
Venice Beach
Naples
Satellite Beach
Melbourne Beach
Cocoa Beach
Jetty Park
Ponce Inlet (New Smyrna)
Daytona Beach
Central Florida Hurricane
Playa Linda
Sebastian Inlet
Flagler Pier
Vero Beach
Fort Pierce
Walton Rocks
St. Augustine
Stuart Beach
Jupiter Inlet
Juno Beach
Jacksonville Beach
Reef Road
Lake Worth Pier
Palm Beach
Boynton Inlet
Deerfield Beach
Fort Lauderdale
Main Beach
Haulover
South Beach
Comfort Inn/Jekyll Island
Panama City Beach
Destin
La Habana
Okaloosa Pier
17th Street Boardwalk
El Bajo (Malecon)
2nd Street (Tybee Island)
La Setenta (Playa 70)
North Jetty
El Cayo
Viejo y el Mar
Navarre Beach
The Cross (Pensacola Beach)
Fripp Island
Hunting Island
Alabama Point
Folly Beach Pier
The Washout
Willawahs (Guana Cay)
Isle of Palms Pier
Dauphin Island
Indicas
Rose Island
Egg Island
Cabo de San Antonio
The Pier (Pawleys Island)
Garden City Pier
Springmaid Beach
Dunes Cove