Mercury Retrograde 2027: The Exact Dates

Computed on November 13, 2026. If you want to check it, the station times should agree with any published ephemeris to within a minute or two.

What it actually does

Mercury does not reverse. The planet keeps going the way it always goes. What happens is that Earth, on a faster inner track, overtakes it, and for about three weeks Mercury appears to slide backwards against the fixed stars in the same way a slower car appears to roll backwards when you pass it. The image at the top of this page is that apparent path, plotted from real positions.

The astrological tradition attached to it is about information rather than disaster. Decisions that depend on facts get harder, because the facts arrive incomplete and then get revised. Conversations you thought were closed reopen. Things you signed come back with a correction attached.

The shadow periods

Mercury covers the same stretch of zodiac three times: forwards, backwards, then forwards again. The two forward passes are the shadow periods, and they are why the whole thing usually feels longer than the three weeks on the calendar. The pre-shadow begins when Mercury first reaches the degree it will later retrograde back to; the post-shadow ends when it finally passes the degree it turned at.

What each of the three windows is about

Each retrograde begins in one sign and ends in the one before it, and the two signs are rarely about the same thing. That is why these so often start as one problem and finish as another.

First: Feb 9 to Mar 3, Pisces back into Aquarius

Begins at 5°59' Pisces and reverses to 20°55' Aquarius over 22 days. It opens on the territory of Pisces, which tends to be what you have been avoiding looking at directly, and finishes in Aquarius, which is the groups you belong to and what you actually want. This is the one that starts as a feeling and ends as a decision about who you spend your time with.

Second: Jun 10 to Jul 4, Cancer back into Gemini

Begins at 6°22' Cancer and reverses to 27°28' Gemini over 24 days. It opens on the territory of Cancer, which tends to be home, family and who looks after whom, and finishes in Gemini, which is the sheer volume of messages, and which ones you never answered. Watch for the thing you thought was a family matter turning out to be a communication one, or the reverse.

Third: Oct 7 to Oct 28, Scorpio back into Libra

Begins at 4°56' Scorpio and reverses to 19°19' Libra over 21 days. It opens on the territory of Scorpio, which tends to be money that is not only yours, and the things nobody says out loud, and finishes in Libra, which is the agreement itself, and whether it was ever fair. A late-year window like this tends to reopen an agreement rather than a mood. Have the paperwork to hand.

What to actually do about it

Most advice on this is either superstition or a shrug. The useful version is short.

1. Do not avoid deciding. Three weeks is a long time to be paralysed, and the cost of delay is real while the cost of a Mercury retrograde is mostly admin.
2. Do read the final version. The specific failure these periods reliably produce is acting on information that gets revised two days later.
3. Confirm arrangements rather than assuming them. The missed meeting and the double booking are the genuinely common ones.
4. Use it for the backlog. Anything with "re" in front of it, review, revise, repair, reconnect, goes unusually well.
5. If you can choose the date of something irreversible, choose a different one. Not out of fear. Just because the alternative is free.

How it lands for you

The sign tells you the subject; your own chart tells you the department. A retrograde in the sign on your third house is about words and short journeys. The same retrograde for someone whose seventh house it falls in is about the person across the table. The year-ahead pages work this out for each rising sign.