How is wave size measured? - Project Sports
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How is wave size measured?

5 min read

Asked by: Tammy Moore

As surf forecasters we measure waves from the trough (the lowest point) to the peak (the highest point). Typically we do this in feet but of course it’s equally valid in meters.

How big is a 3 foot wave?

roughly six feet high

Thus, a “3-foot” wave is roughly six feet high (in actuality an Hm0 of ~1.8 m), i.e., head-high to a 6-foot (~180 cm) person; a “2-foot” wave is roughly four feet high (Hm0 of ~1.2 m), i.e., chest-high to such a person; and a “6- to 8-foot” wave would be 2 to approaching 3 times head-high to such a person (Hm0 of ~3.5 …

How big is a 2 ft wave?

The Traditional scale corresponds to approximately one half the height of the wave face, i.e. a wave estimated to be 4 feet from crest to trough (or chest-shoulder high on the average surfer) would be called 2 feet.

How is an ocean wave measured?

Scientists use two measures to describe ocean waves: height and length. As is shown on the figure, wave height is defined as the height of the wave from the wave top, called the wave crest to the bottom of the wave, called the wave trough.

How big is a 5 foot wave?

That’s very close to about 20-inch units for each half meter,” Goddard told SurferToday. “So, two half meters is one meter, or about 3.28 feet – about waist high. Then, three half meters is about 60 inches or about head high. It looks like a five-foot wave, from the surfboard up to the lip of the wave.”

How tall is a 4 foot wave?

wave heights for surfing

wave height in feet distance from base to lip of wave measured on front of wave
3 – 4 ft. waist to shoulder high
3 – 5 ft. waist to head high
4 – 5 ft. shoulder to head high
4 – 6 ft. shoulder high to 1 foot overhead

What is the largest wave ever recorded?

During the night of July 9, 1958, the largest recorded wave in history occurred in Lituya Bay, Alaska. It reached an astonishing height of 1,720 feet. As a frame of reference, the Empire State Building is 1,250 feet tall.

Can you surf on 1 2ft waves?

While you may prefer bigger waves over smaller, you can absolutely surf 2 foot waves. Although 2 foot waves may sound tiny, they’re perfectly surfable. In fact, what’s called a 2 footer may technically be 3 or 4 feet due to the way surfers measure wave height.

Is a 3ft wave big?

As far as I’m concerned, three feet is the perfect size for a wave. It’s big enough that you can ride a shortboard and still have some decent faces to work with, but it’s small enough to bust out the longboard and work on your nose-riding without worrying about bouncing your head off the reef.

What is considered a big wave?

For it to be considered big wave surfing, a surfer must tackle a wave of at least 20 feet (6.2 metres) high.

Is a 4ft wave big?

As a start, you’d have to say that once we’re getting into the 4-5 foot wave range, then that would be considered ‘big’ by most. But the size of the waves doesn’t tell the whole story, and you may be able to handle swimming in bigger waves if other factors are in your favour.

What size wave is good for beginners?

If the surf forecast says 1-3m (3-9ft), then it’s usually a good time to go surfing. 3m waves are not appropriate for beginners, but experienced surfers take on waves of incredible height. Under 1 meter, waves are usually more suited to beginner surfers.

What size waves are considered small?

Surfing small waves can still be super fun if you have the right board under your chest and know the proper small wave techniques. Small wave shortboards are usually 3-4 inches shorter, have 30-35L of volume, and feature a low rocker.

Can you surf on 1 foot waves?

As a general rule, if it’s only 1ft, it’s pretty difficult to surf on, unless you longboard or are a lightweight grom/ shredding machine!

Can you surf on 1m waves?

A measure that many surfers also use is the classic one: small waves (up to 1 meter), half a meter (up to 1.5 meters), meter (up to 2 meters high), last meter (over 2 meters high), meter and a half (over 2.5 meters), while those starting from 2 meters are considered big waves.

Are smaller waves harder to catch?

In order for you to catch a wave you need to be moving at roughly the same speed as the wave is going. Bigger waves travel faster, so if you can catch smaller waves but are struggling as you go into bigger surf this could explain why.

Why do I keep missing the wave?

The main reasons for missing waves are



You are lying too far toward the tail of your surfboard (you might be worried about nose diving) This weight at the back of your board works against the forward momentum that’s needed to catch a wave.

How do you paddle into a bigger wave?

My weight distribution be on the back foot to start off with edging into an even stance towards the bottom of the wave to outrun it. We can turn around underneath the wave.

How do you paddle into a wave?

How to paddle into waves

  1. Find the right position. Getting the right paddle position can be a little tricky and can take time to master. …
  2. Keep your legs together. Try and reframe from flailing around on the surfboard. …
  3. Keep your head down. …
  4. Build up speed. …
  5. Cup your hands. …
  6. S Shaped Paddles. …
  7. Adjust your paddles.


What to do when a wave breaks on you?

STAYING CALM WHEN A WAVE BREAKS ON YOU

  1. DON’T GAS YOURSELF OUT. If you’re in the impact zone, paddling like a maniac, hyperventilating and gasping for breath already, chances are you’re not going to be very calm when a big wave breaks right on you. …
  2. BREATH OUT BEFORE YOU BREATH IN. …
  3. FLIP THE SCRIPT. …
  4. KNOW YOUR RANGE.


How do you pick the right wave?

The ocean cues to look out for when picking the best waves are:

  1. FLAT SWELLS. Waves that are flat in appearance and too far away from the peak are called flat swells. …
  2. PITCHING WAVES. When a surfer paddles too late and attempts to stand, the wave breaks over the surfer. …
  3. CLOSEOUTS. …
  4. THE SPLIT PEAK. …
  5. HALF- BUILT SWELLS.