Neptune enters Aries on March 30, 2025, then settles into Aries long term from January 26, 2026, until 2039, with brief dips into neighboring signs along the way.

Quick Scoop

Key dates for ā€œwhen does Neptune enter Ariesā€

  • March 30, 2025: Neptune first enters Aries, starting a preview phase of the transit.
  • October 22, 2025: Neptune retrogrades back into Pisces, briefly ending that first Aries phase.
  • January 26, 2026: Neptune re-enters Aries and stays there for the main run of the transit.
  • May 21ā€“22, 2038: Neptune steps into Taurus for the first time, ending the continuous Aries stretch.
  • October 21, 2038ā€“March 23, 2039: Neptune makes a final return to Aries before moving into Taurus for good.

In forum and astrology-blog conversations, people often talk about this as a generational shift in ideals, spirituality, and collective imagination, running roughly from early 2025 previews through 2039.

Mini FAQ style notes

  • If you just want the next time Neptune enters Aries: that would be March 30, 2025 (first ingress), and then again more permanently on January 26, 2026.
  • If you care about the full transit : most astrologers frame ā€œNeptune in Ariesā€ as 2025ā€“2039, with a short Pisces return in late 2025 and brief Taurus dips at the very end.

ā€œNeptune in Ariesā€ is currently a trending topic in astrology spaces because itā€™s the first time this has happened since the 1800s, so many forecasts and forum threads are exploring how it might reshape spirituality, art, identity, and activism over the next decade-plus.

TL;DR: Neptune enters Aries on March 30, 2025 (preview), then re-enters and really settles in on January 26, 2026, staying thereā€”aside from short sign changesā€”until 2039.

Information gathered from public forums or data available on the internet and portrayed here.