Week of September 21 – 27, 2026:

This week, the Sun enters Libra on the September Equinox, while a Full Moon in Aries arrives later in the week.
As September moves toward its final days, the transition from summer to autumn gradually becomes more noticeable across the Northern Hemisphere.

Mercury trine Jupiter supports broader thinking, communication, learning, and the exchange of ideas.
It can be a good time to look beyond immediate details, consider different perspectives, and make plans with a wider view of what may be possible.

On September 23, the Sun leaves Virgo and enters Libra, beginning a period that places more emphasis on balance, cooperation, relationships, and the way we relate to others. Libra is an Air sign ruled by Venus, bringing greater attention to diplomacy, aesthetics, and finding common ground.
Happy birthday, Libras!

The Sun’s entry into Libra also marks the September Equinox, when day and night are close to equal in length.
It marks the beginning of astronomical autumn in the Northern Hemisphere and spring in the Southern Hemisphere.
In the north, the days continue to grow shorter as the seasonal shift away from summer becomes increasingly noticeable. Happy Equinox to everyone!

Toward the end of the week, a Grand Air Trine forms between the Sun in early Libra, Uranus in Gemini, and Pluto in Aquarius.
With all three in Air signs, the pattern emphasizes ideas, communication, new perspectives, and changes in the way we think or approach existing situations. The involvement of Uranus and Pluto connects the Sun with two slower-moving planets associated with broader and longer-term changes.

September 26 brings two aspects involving the Sun.
Its opposition to retrograde Neptune can make situations less straightforward, with assumptions or expectations more easily clouding what is actually happening.
On the same day, the Sun trines retrograde Pluto, adding depth and bringing greater attention to what lies beneath the surface.
Together, these aspects can make it important to distinguish between what is uncertain and what becomes more apparent through closer examination.

Also on September 26, a Full Moon takes place at 3°37′ Aries.
With the Moon in Aries opposite the Sun in Libra, the Full Moon highlights the contrast between individual needs and considerations involving other people.
Aries emphasizes independence, initiative, and personal direction, while Libra considers cooperation, balance, and relationships.
Matters developing since the previous New Moon may reach a point of culmination, realization, or decision under the Full Moon.

On September 27, Mars at 29° Cancer squares retrograde Chiron at 29° Aries.
Reactions may be stronger when sensitive issues are touched, particularly where personal needs, protection, or old frustrations are involved.
With both planets at the final degree of their signs, unresolved matters may feel more pressing and harder to ignore.

The Moon travels through Capricorn, Aquarius, Pisces, and Aries this week.
It begins in Capricorn, favoring a practical and reserved approach, before moving into Aquarius and shifting attention toward ideas, groups, and a wider perspective.
In Pisces, sensitivity and imagination become more prominent.
The Moon then enters Aries, building toward the Full Moon on September 26 and bringing a more direct and independent emotional tone.
The week begins and ends with the Moon in Cardinal signs, while the Sun also enters Cardinal Libra, adding further emphasis to initiative and new directions.

Overall, the week moves through both a seasonal and astrological transition as the Sun enters Libra and the Northern Hemisphere begins autumn.
The Full Moon in Aries later in the week brings the Aries-Libra axis into focus, while the surrounding aspects add further layers to the closing days of September.