When Should You Upload to YouTube? (3,500-Video Study)

I pulled data on 3,531 long-form videos across 34 YouTube channels and 7 niches (business, creator economy, education, health, productivity, self-development, and tech). No Shorts, no compilations.

The question was simple: does the day you upload actually matter?

Everyone has an opinion on this. Most of those opinions come from a sample size of one channel and a vague feeling. So I ran the numbers instead.

1. Performance By Day of the Week

Each video's views were normalised against its own channel's median (so a score of 2.0x means the video got twice as many views as is typical for that channel). This lets us compare across channels of wildly different sizes.

Average normalised views by upload day

Thursday takes the top spot at 2.18x. That's a meaningful edge over the worst day (Friday at 1.40x). The gap between the best and worst upload day is about 56%.

The thing about Sunday is how few creators actually use it. Only 258 videos in the dataset were uploaded on a Sunday (7.3% of the total), yet it's the second-best performing day. Less competition, same audience appetite.

Friday, meanwhile, is where videos go to underperform. It's not catastrophic, but it's consistently the weakest day in the data.

2. The Upload Gap

Here's where it gets interesting. The days creators choose to upload don't line up with the days that actually perform best.

Upload volume vs performance by day

Wednesday is the most popular upload day (18% of all videos), which makes sense. Mid-week, production is done, hit publish. And yet it only ranks third for performance.

Sunday is the least popular upload day by far (7.3%) but the second-best performer. That's a gap worth paying attention to. Fewer creators uploading means less competition in the feed, and apparently audiences are watching.

On paper it looks like most creators are optimising for their own convenience, not their audience's behaviour. The data suggests there's an opportunity on Thursdays and Sundays that most people are leaving on the table.

3. Best Days By Niche

The best day to upload isn't universal. It shifts depending on what kind of content you make.

Top-performing upload day per niche

Thursday dominates across business, self-development, and creator niches. Health content does best on Sundays (people researching health on their day off, perhaps). Productivity peaks on Tuesdays, which tracks with the "new week, new system" mentality. Education is the outlier: Friday is its best day, when most other niches are at their worst.

The thing about niche-level data is that it invites you to be more intentional. If you're in self-development and you've been defaulting to Monday uploads because "start of the week," the data says Thursday would serve you better.

4. Weekend vs Weekday

This one might surprise people who've been told to avoid weekends at all costs.

Weekday average: 1.86x normalised views (2,893 videos, 81.9% of dataset)
Weekend average: 1.83x normalised views (638 videos, 18.1% of dataset)

That's a 1.6% difference. Functionally nothing.

The conventional wisdom says "never upload on weekends." The data says the performance gap is negligible. What is notable is that only 18% of videos in the dataset were uploaded on weekends. So most creators are avoiding it, but the ones who do show up are performing just as well.

Less competition, same results. That's not a reason to panic-switch your schedule, but it's worth knowing the "weekend penalty" is mostly a myth in this dataset.

5. So What Do You Do With This?

Five things I'd take from the data:

• If you can only pick one day, make it Thursday. It's the top performer overall (2.18x) and the best day for three out of seven niches. It's already popular (16.7% of uploads), which means the sample is solid.
• Sunday is underrated. Second-best performance, least crowded day. If your production schedule allows a Sunday publish, you're competing against fewer creators for the same audience attention.
• Avoid Friday unless you're in education. It's the weakest day overall (1.40x). Education is the one niche where Friday actually outperforms, but for everyone else, it's the bottom of the chart.
• Check your niche before copying general advice. Productivity creators do best on Tuesdays. Health does best on Sundays. The "best day" depends on who's watching and when they're watching.
• Don't overthink weekends. The weekday-weekend performance gap is 1.6%. Your video's topic, title, and thumbnail matter far more than whether you uploaded on a Saturday.

Curious how your own channel's timing stacks up? The Channel Audit tool pulls your stats and breaks down what's working. Worth a look, even if just to see where your uploads land on the week.

Methodology

I'm Becky Isjwara, content strategist and the gal behind youtubeproducer.app. If you're looking for help with your online branding and content strategy, let's have a chat.