This guest post was written by Justin Premick from Aweber. You can read more about Aweber and their kick butt newsletter platform here: Aweber.
Think you know the best day and time to send your email newsletter?
Ever wonder if your fellow email marketers are all sending at the same time you do?
Convinced your open rate is too low (or amazingly high)?
Some recent statistics pulled from all AWeber users may help you answer these questions:
What Kind of Open Rates Are People Getting?
If you’re sending HTML emails, you probably use your open rate to help gauge your success.
Even though it’s not a perfect measure of whether people are actually opening and reading your emails, it’s useful as a relative measure:
Plus, all other things being equal, it can give you some motivation (if your open rates are lower than other senders’) or satisfaction (if your rates are higher).
So, here goes…
When Is/Was The Best Day To Send?
You’ll often hear (at least, I often hear) that Tuesday is the optimal day to send, because on Monday people are catching up from the weekend, and that on Tuesday morning you’ll have their undivided attention before they jump into their work for the upcoming week.
Do the numbers back up that theory? Let’s see.
The breakdown of open rates by day of the week:
In a recent month, Tuesday was actually the second-worst day to send, at least if you’re measuring by open rates.
(While we’re breaking assumptions, I should point out this, too: the hour of the day that got the best open rate was not 8-9AM, or 9-10AM, but in fact 2-3PM Eastern Time — email newsletters sent during that hour last month enjoyed a 19.1% open rate.)
Does This Mean I Should Switch My Campaigns To Thursdays?
In a word: No.
In both March and February, Thursday newsletters got the 3rd-worst opens vs. the rest of the week.
I hesitated a little to publish these stats, because I’m concerned that people might flock to sending their newsletters at the day or time that happened to get the best results lately.
Please, don’t drastically change your sending times/days just because you see that the average last month, or any month, happened to be higher on a different day or time.
Yes, you might eventually be able to shift your sending schedule, or split test some broadcasts, but if you up and move everything, you may throw off subscribers who are used to hearing from you at the usual time.
“It’s So Busy, Nobody Goes There Anymore”
To get at the other reason for not shifting your sending based on these stats, let’s paraphrase Yogi Berra (see above).
If everyone switches their sending schedule to send on say, Thursday, then recipients will start getting a ton of email that day, and start paying less attention to each individual email.
One possible reason for Thursday’s success in a recent month may be that it wasn’t as popular as say, Tuesday or Wednesday for sending email:
Those higher-volume days mean more emails in readers’ inboxes, which might contribute to reduced open rates. Following that reasoning, some people may look at the low weekend volume (more email newsletters were sent on Tuesdays than on Saturdays and Sundays combined) and see an opportunity to get their audiences’ undivided attention.
My main point in showing these is to point out that our assumptions about what works are often quite wrong, and that you ultimately have to test for yourself to see what best suits your audience.
Some Inspiration… And Some Help
Are you getting better open rates than this?
If so, GREAT! Give yourself a pat on the back…
…but don’t get complacent. Open rates aren’t the be-all, end-all of email metrics. They don’t guarantee that people are reading your emails, only that they have images turned on and that they probably saw your email for at least a moment.
Plus, there’s always room for improvement, right?
Some ideas that can help you raise your open rates:
Read more about Aweber here: Aweber.




August 30th, 2009 at 3:51 pm
VERY interesting article – some surprising figures too.
September 1st, 2009 at 4:06 pm
This is awesome info. I'm sure people will continue to make claims about when you outta send it, but clearly the data doesn't support it. I think a killer headline is more crucial to getting emails opened than time of delivery.
Phil
September 2nd, 2009 at 12:15 am
Interesting stats, I was thinking of sending my newsletter by email, but after reading those numbers I think I'll stick to paper.
September 2nd, 2009 at 1:24 pm
That is really good to know about sending on Tuesdays. I've heard over and over people claim that Tuesdays and Thursdays are the best days to send to their e-mail list.
It's nice to see that someone has some sort of empirical evidence.
September 3rd, 2009 at 6:02 pm
Thank you for this post. It will be extremely valuable when I get off my ass and start a newsletter or two. If I had to figure out all this stuff on my own, I would waste a lot of time.
September 5th, 2009 at 12:09 pm
Timing is (a good portion of) everything. While timing is only one factor influencing your open rate, it definitely makes a difference. Think about it. Publishing in the middle of the night means your message will appear in a very full inbox in the morning along with many more messages, mostly spam. Publish too late in the day, and the reader might be anxious to clear his desk and his inbox in order to leave. Most consumers like to get email offers on weekends, and some professionals like to read their email at home in the evenings when its quiet. Bottom line: Experiment, use common sense, and ask your readers what time is best for them.
September 7th, 2009 at 12:39 am
Glad to hear that 13% is considered good. We have 6200 on our maillist and the best we have ever had was 780 open. which is pretty close to the ratios you were getting. Typically we get about 10% confirmed open. The real question isn't people opening them, but how many of them are ending up in user's spam folder
November 24th, 2009 at 10:08 pm
Very cool tips for many email marketing, very easy to apply it into my business.
Thank for share.