# Vietnamese lunar calendar and astrological forecasts

> Live situation record from CLSTR: https://clstr.news/situations/vietnamese-lunar-calendar-and-astrological-forecasts
> Updated: 2026-09-25T03:06:54.000Z. Sources: 9. Developments: 3.

Lunar calendar and astrological observations in Vietnam for late August and September 2026 indicate varying levels of auspiciousness for different activities.

On September 1, 2026, the day is classified as ‘Hung’ (unlucky) due to conflicts between the Earthly Branch and Heavenly Stem. Traditional guidance suggests avoiding major undertakings such as weddings or construction, though minor tasks and business openings remain permissible.

By late September, forecasts shift toward more favorable conditions. September 23, 2026, marks the beginning of the Thu Phan solar term and falls on the 13th day of the 8th lunar month. It is noted as a suitable time for opening businesses, seeking peace, or performing charity.

September 24, 2026, is described as a ‘Tieu Cat’ (moderately good) day, where success is expected through unity, particularly for those with the Rat, Monkey, or Dragon zodiac signs. Guidance for this day suggests favorable travel directions toward the Southwest and identifies specific auspicious hours, while advising against construction or weddings during certain unlucky periods.

On September 26, 2026, the lunar calendar marks the 16th day of the 8th lunar month during the Autumn Equinox solar term. This date also coincides with global observances, including World Environmental Health Day and World Contraception Day.

## Claims

- September 23, 2026, is a Canh Ty day with the Bích thượng Thổ element. (single source)
- The day is suitable for grand openings, seeking peace, moving in, and charity work. (single source)
- Favorable travel directions for the day are Northwest and Southwest. (single source)
- The moon is currently in its waning crescent phase, approaching the full moon of the 8th lunar month. (single source)
- September 23 is recognized as the International Day of Sign Languages. (single source)
- The UN General Assembly declared September 23 as the International Day of Sign Languages to promote deaf rights. (single source)
- September 23 marks the beginning of the Autumn Equinox solar term. (single source)

## Timeline

### 2026-09-25: Lunar calendar and global observances for September 26, 2026

September 26, 2026, marks the 16th day of the 8th lunar month. Globally, the date observes World Environmental Health Day and World Contraception Day.

4 sources. https://clstr.news/cluster/lunar-calendar-and-global-observances-for-september-26-2026

### 2026-09-22: Lunar calendar and astrological forecasts for September 23-24, 2026

Lunar calendar and astrological forecasts for September 23-24, 2026, detail auspicious timings, zodiac luck, and cultural observations like the Thu Phan solar term in Vietnam.

7 sources. https://clstr.news/cluster/september-23-2026-autumn-equinox-and-international-day-of-sign-languages

### 2026-08-31: Lunar calendar for September 1, 2026, in Vietnam

September 1, 2026, corresponds to the 20th day of the 7th lunar month (Mậu Dần). It is considered an unlucky day for major tasks, with specific traditional guidance on compatible zodiac signs and activities.

6 sources. https://clstr.news/cluster/lunar-calendar-for-september-1-2026-in-vietnam

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Cite as: Vietnamese lunar calendar and astrological forecasts. CLSTR, https://clstr.news/situations/vietnamese-lunar-calendar-and-astrological-forecasts