The US Bureau of Labor Statistics has no occupation called underwater welder. The nearest is commercial divers, and in May 2023 there were 2,790 of them in the whole country, earning a median of $61,300 a year. The $300,000 figure that circulates is a day rate for offshore saturation divers, not an annual salary, and it applies to very few people.
Commercial divers against welders, May 2023
| Commercial divers (49-9092) | Welders, cutters, solderers and brazers (51-4121) | |
|---|---|---|
| People employed in the US | 2,790 | 421,730 |
| Median annual wage | $61,300 | $48,940 |
| Mean annual wage | $75,570 | $52,640 |
| 10th percentile | $39,430 | $36,830 |
| 25th percentile | $46,440 | - |
| 75th percentile | $89,750 | - |
| 90th percentile | $136,990 | $72,970 |
Read the bottom row first. Even at the 90th percentile - the top tenth of an occupation of fewer than three thousand people - a commercial diver earns $136,990. That is a good living. It is not $300,000, and the tenth percentile earns $39,430, which is less than a welder at the 25th. For comparison on dry land, see what a TIG welder makes.
Why there is no official underwater welder salary
Underwater welding is a task, not an occupation. The people who do it are commercial divers who happen to hold a welding qualification, and they spend most of their working time doing other things underwater - inspection, cutting, rigging, concrete work, hull cleaning. The welding is a fraction of the job and a fraction of the pay. How the welding itself is done, wet and dry, is a separate subject.
This is why salary aggregators disagree with each other so wildly on this job. They are scraping job adverts for a title that no statistical agency tracks, from an industry small enough that a handful of postings moves the average.
Inland and offshore are two different jobs
The single biggest factor in what a commercial diver earns is which of these two they do, and they are not the same career.
- Inland - bridges, dams, water treatment plants, locks, harbours, the inside of tanks. Shallow, cold, near-zero visibility, often a short drive from home. This is where nearly everyone starts and where most stay. Pay sits around the BLS median
- Offshore - oil and gas platforms, pipelines, subsea structures. Deeper, on a vessel, weeks away at a time, and paid by the day rather than by the year. This is where the large numbers come from
- Saturation diving - the small end of offshore. Divers live in a pressurised chamber for weeks so they do not have to decompress between shifts. Day rates plus depth pay plus a daily rate for every day spent under pressure. Very few people, very high earnings, and the most demanding version of the job that exists
BLS shows the same split in the industry data. The highest-paying industry for commercial divers in May 2023 was Other Support Services at an annual mean of $85,310, followed by support activities for water transportation at $84,090 - both above the occupation's own mean of $75,570.
Where the $300,000 figure comes from, and why it is not a salary
Offshore work is quoted as a day rate. A diver on a saturation job may earn a base day rate, plus a depth allowance that increases with the depth worked, plus a separate daily payment for each day spent living under pressure. Add those together on a good contract and the daily total is genuinely large.
Then multiply by the number of days actually worked in a year, which is the part the headline leaves out. Offshore diving is contract work with gaps between jobs, weather stand-downs and medical limits on how much time a diver can spend under pressure. The annual figure is the day rate times a realistic number of working days, not times 365 - and that is why BLS records 2,790 people with a median of $61,300 rather than an occupation full of people earning a third of a million dollars.
What it costs to get there
Commercial diving school is the entry route, and it is neither short nor cheap: typically five to seven months full time, and a five-figure cost before gear. On top of that a working underwater welder needs a welding qualification tested underwater, not on land - the route is set out in how to become an underwater welder, and the general certification path in how to become a certified welder.
The code that governs the work is AWS D3.6M:2017, the Underwater Welding Code, now in its sixth edition. It covers welding in both dry and wet environments and defines weld classes - Class A, comparable to above-water welding; Class B, for less critical applications; and Class O, which meets the requirements of some other designated code. A qualification is always to a class, and the class is what an employer asks for.
The part the salary pages leave out
The hazards are not mainly the welding. They are differential pressure, entrapment, equipment failure, and decompression. A diver working next to an intake can be pulled into it by a pressure difference small enough to be invisible from the surface. That is the hazard the industry teaches first, and it is not something a welding qualification prepares anyone for.
What the job is actually like
Pay is easier to look up than working conditions, so it is worth hearing the second part from someone doing it.
Frequently asked questions
How much does an underwater welder make a year?
There is no official figure for underwater welders specifically. For commercial divers, the occupation they belong to, BLS recorded a median annual wage of $61,300 in May 2023, with the 10th percentile at $39,430 and the 90th at $136,990. Inland work clusters near the median; offshore and saturation work is where the higher figures are.
Do underwater welders really make $300,000?
A very small number of saturation divers can approach figures like that in an exceptional year, because offshore work pays a day rate plus depth pay plus a daily payment for time under pressure. It is not a salary and it is not typical. BLS counted 2,790 commercial divers in the whole United States, with a 90th percentile of $136,990.
Is underwater welding worth it?
It depends what you are comparing. A commercial diver's median of $61,300 is about $12,000 more than a welder's $48,940, for a job with months of training, contract work, time away and a genuinely serious injury and fatality record - NIOSH counted 39 deaths among commercial divers in seven years. People who stay in it tend to do so for the work itself rather than the differential.
How long does it take to become an underwater welder?
Commercial diving school is typically five to seven months full time, and you need to be a competent welder before or alongside it. After that the underwater welding qualification itself is tested in the water to a class under AWS D3.6M, and employers hire on that class rather than on a land certificate.
What does an underwater welder do most of the time?
Not welding. Commercial divers spend most of their underwater time on inspection, cutting, rigging, concrete and repair work, and on the surface on gear maintenance and dive planning. The welding qualification opens jobs; it is not what fills the day.
Sources
- US Bureau of Labor Statistics - Occupational Employment and Wages, May 2023: Commercial Divers (49-9092)
- US Bureau of Labor Statistics - Occupational Employment and Wages, May 2023: Welders, Cutters, Solderers and Brazers (51-4121)
- BLS Occupational Outlook Handbook - Commercial Divers
- NIOSH - Commercial diving: 39 fatal and 460 non-fatal occupational injuries, 2011-2017
- AWS D3.6M:2017, Underwater Welding Code - weld classes A, B and O (preview PDF)
- Behind The Job - what it is really like to be a commercial diver
In short
An underwater welder is a commercial diver with a welding ticket, and commercial divers had a median wage of $61,300 in May 2023 against a welder's $48,940. The top tenth reached $136,990. The six-figure headlines are offshore day rates multiplied by a year nobody actually works, and the occupation is small - 2,790 people - and genuinely dangerous. If the job appeals, let it appeal for the work.