Best Days to Cut Hair in May 2021
The best and most auspicious days to cut your hair in May 2021 are 1, 2, 10, 12, 18, 19, 20, 21, 22, 23, 28 and 29, with 18, 19, 20 and 21 the most favourable of all (Moon in Leo or Virgo). Avoid cutting on 5, 6, 11, 15, 16, 17 and 26 (New Moon — 11 May · Full Moon — 26 May). These readings follow European lunar folk tradition — the Moon’s phase and zodiac sign.
What to do when
Under a waxing Moon — tradition says hair regrows faster after a cut.
Under a waning Moon — the cut lasts longer and regrowth slows.
The favourable signs (Leo, Virgo, Taurus, Capricorn, Libra) are also the traditional colouring days.
Under a waning Moon — the traditional time for masks, nourishing and root care.
Day by day
| Day | Phase | Sign | Verdict | Suits |
|---|---|---|---|---|
| 1 Sat | 74% · waning | Capricorn | Favourable day | Cut to keep the shape Strengthening care and masks Colouring |
| 2 Sun | 64% · waning | Capricorn | Favourable day | Cut to keep the shape Strengthening care and masks Colouring |
| 3 Mon | 53% · waning | Aquarius | Neutral day | Cut to keep the shape Strengthening care and masks |
| 4 Tue | 43% · waning | Aquarius | Neutral day | Cut to keep the shape Strengthening care and masks |
| 5 Wed | 33% · waning | Pisces | Unfavourable day by tradition | |
| 6 Thu | 24% · waning | Pisces | Unfavourable day by tradition | |
| 7 Fri | 16% · waning | Aries | Neutral day | Cut to keep the shape Strengthening care and masks |
| 8 Sat | 10% · waning | Aries | Neutral day | Cut to keep the shape Strengthening care and masks |
| 9 Sun | 5% · waning | Aries | Neutral day | Cut to keep the shape Strengthening care and masks |
| 10 Mon | 1% · waning | Taurus | Favourable day | Cut to keep the shape Strengthening care and masks Colouring |
| 11 Tue | 0% · waning | Taurus | Rest day — no cutting | |
| 12 Wed | 0% · waxing | Taurus | Favourable day | Cut for faster regrowth Colouring |
| 13 Thu | 3% · waxing | Gemini | Neutral day | Cut for faster regrowth |
| 14 Fri | 7% · waxing | Gemini | Neutral day | Cut for faster regrowth |
| 15 Sat | 12% · waxing | Cancer | Unfavourable day by tradition | |
| 16 Sun | 19% · waxing | Cancer | Unfavourable day by tradition | |
| 17 Mon | 28% · waxing | Cancer | Unfavourable day by tradition | |
| 18 Tue | 37% · waxing | Leo | Excellent day for a haircut | Cut for faster regrowth Colouring |
| 19 Wed | 47% · waxing | Leo | Excellent day for a haircut | Cut for faster regrowth Colouring |
| 20 Thu | 58% · waxing | Virgo | Excellent day for a haircut | Cut for faster regrowth Colouring |
| 21 Fri | 69% · waxing | Virgo | Excellent day for a haircut | Cut for faster regrowth Colouring |
| 22 Sat | 79% · waxing | Libra | Favourable day | Cut for faster regrowth Colouring |
| 23 Sun | 87% · waxing | Libra | Favourable day | Cut for faster regrowth Colouring |
| 24 Mon | 94% · waxing | Scorpio | Neutral day | Cut for faster regrowth |
| 25 Tue | 99% · waxing | Scorpio | Neutral day | Cut for faster regrowth |
| 26 Wed | 100% · waning | Sagittarius | Rest day — no cutting | |
| 27 Thu | 98% · waning | Sagittarius | Neutral day | Cut to keep the shape Strengthening care and masks |
| 28 Fri | 94% · waning | Capricorn | Favourable day | Cut to keep the shape Strengthening care and masks Colouring |
| 29 Sat | 87% · waning | Capricorn | Favourable day | Cut to keep the shape Strengthening care and masks Colouring |
| 30 Sun | 78% · waning | Aquarius | Neutral day | Cut to keep the shape Strengthening care and masks |
| 31 Mon | 68% · waning | Aquarius | Neutral day | Cut to keep the shape Strengthening care and masks |
Phase and sign are computed for 12:00 UTC on each day. The Moon changes sign every ~2.3 days — the exact moments are listed below.
The Moon changes sign
- Aquarius(Air · mixed folk readings — no clear call)2 May, 19:32
- Pisces(Water · folk belief: dandruff and unruly hair)5 May, 02:10
- Aries(Fire · mixed folk readings — no clear call)7 May, 11:54
- Taurus(Earth · thickness and resilience)9 May, 23:47
- Gemini(Air · mixed folk readings — no clear call)12 May, 12:45
- Cancer(Water · folk belief: thinning hair)15 May, 01:34
- Leo(Fire · strength and shine)17 May, 12:49
- Virgo(Earth · fast, even regrowth)19 May, 21:03
- Libra(Air · flattering shape and volume)22 May, 01:36
- Scorpio(Water · the most contested sign in the almanacs)24 May, 02:59
- Sagittarius(Fire · mixed folk readings — no clear call)26 May, 02:40
- Capricorn(Earth · strong roots, a lasting cut)28 May, 02:25
- Aquarius(Air · mixed folk readings — no clear call)30 May, 04:06
Times are UTC.
Frequently asked questions
Which are the best and most auspicious days to cut hair in May 2021?
The favourable haircut days in May 2021 are 1, 2, 10, 12, 18, 19, 20, 21, 22, 23, 28 and 29. Tradition's best are 18, 19, 20 and 21 — the days with the Moon in Leo or Virgo.
Is this a Feng Shui or panchang auspicious-date calendar?
No. These dates come from European lunar folk tradition: the Moon's phase (waxing or waning) combined with the zodiac sign it stands in. It does not use the Chinese almanac, Ghost Month, or the Vedic panchang, so its "auspicious" days will not always match a Feng Shui or Hindu calendar. The astronomy behind it — phase and sign for any given day — is computed and verifiable; the meaning attached to it is tradition, not science.
When should I cut my hair for faster growth in May?
Tradition says hair regrows faster when cut under a waxing Moon — in May 2021 that falls on 12, 13, 14, 18, 19, 20, 21, 22, 23, 24 and 25.
Which days are unsuitable for a haircut in May 2021?
Tradition does not cut on 5, 6, 11, 15, 16, 17 and 26 — the new and full moon days (New Moon — 11 May · Full Moon — 26 May) and the days with the Moon in Cancer or Pisces (folk belief: thinning and dandruff).
When should I colour my hair in May 2021?
Tradition assigns colouring to the days with the Moon in a favourable sign (Leo, Virgo, Taurus, Capricorn, Libra) — in May 2021 those are 1, 2, 10, 12, 18, 19, 20, 21, 22, 23, 28 and 29.
How does a lunar haircut calendar work?
Two rules combine. Under a waxing Moon (new → full) tradition cuts for faster regrowth; under a waning Moon, to keep the shape and strengthen the roots. The zodiac sign sets the verdict: Leo and Virgo are best, Taurus, Capricorn and Libra favourable, Cancer and Pisces unfavourable, the rest neutral. The new and full moon are rest days.
Is there scientific evidence?
No. The moon phase and its zodiac sign are astronomically computed and verifiable, but their link to hair growth is folk belief. This page reproduces the rules of the popular lunar almanacs as entertainment — it is not advice.
The moon phase and its zodiac sign are computed astronomically (tropical zodiac). The haircut rules are folk tradition from the popular lunar almanacs — reproduced for entertainment and curiosity; they are not advice and have no scientific confirmation.