BANGKOK – On the evening of 7-8 September 2025, Thailand will have a prime view of a total lunar eclipse, widely known as a “Blood Moon”. During this event, the moon will turn a deep shade of red and will catch the attention of anyone looking up.
The eclipse will be easy to watch from much of Thailand and many other parts of the world. With an unusually long duration and broad visibility, both amateur stargazers and seasoned astronomers have much to look forward to. Here is what to expect, why the term “Blood Moon” is used, and the best times to catch this rare sight in Thailand.
In Chiang Rai (UTC+07:00), the eclipse is expected to start around 11:28 PM on September 7, with totality (when the Moon appears red) occurring between 1:30 AM and 2:52 AM on September 8, and the event concluding around 4:55 AM. The totality phase will last approximately 82 minutes.
What Causes a Blood Moon?
A Blood Moon appears during a total lunar eclipse, when Earth comes between the sun and the moon. Earth’s shadow covers the moon completely. Unlike a solar eclipse, which can damage unprotected eyes, watching a lunar eclipse requires no special glasses. The nickname “Blood Moon” comes from the moon’s colour as it sits in the darkest part of Earth’s shadow (the umbra).
The moon’s red tint happens thanks to Rayleigh scattering, which also gives sunrises and sunsets their colours. As sunlight passes through Earth’s atmosphere, blue and violet light scatter in all directions.
Red and orange light bend and reach the moon, lighting it with deep copper and red shades. The exact colour depends on air conditions, including dust, pollution or volcanic activity. No two Blood Moons look the same, making each eclipse unique.
Throughout history and across cultures, lunar eclipses have inspired wonder and superstition. Some African communities once saw the red moon as a sign to settle disputes and restore harmony.
In recent years, the phrase “Blood Moon” has become widespread, sometimes linked to stories of doom, though most astronomers find these ideas sensational. Still, the term sticks because it brings to mind how startling the moon looks during totality.
Best Times and Places to Watch in Thailand
Thailand will enjoy full visibility of the total lunar eclipse, with cities like Bangkok offering clear views if the weather cooperates. Based on TimeandDate.com, the eclipse begins at 8:28 PM ICT on 7 September and ends at 1:55 AM ICT on 8 September.
The moon will stay fully red for over 80 minutes, from 12:30 AM to 1:52 AM on 8 September. This totality period stands out as one of the longest in years, caused by the moon passing close to the centre of Earth’s shadow.
To get the best view, find a spot away from street lights and city glow. Head for quiet countryside, a rooftop or an open field. Popular spots like Chiang Mai, Phuket or the wide spaces of Isaan might offer clearer skies, though weather is always a factor.
No special equipment is needed to enjoy the show, but binoculars or a telescope can pick up craters and fine details. Photographers should plan to shoot during the deepest red phase, around 12:30 to 1:52 AM, for the richest colour.
The eclipse matches up with the full moon of September, often called the “Corn Moon” in some cultures, thanks to northern harvest cycles. In Thailand, lunar events tie into important celebrations like Loy Krathong, making this Blood Moon an extra special night with both scientific and cultural meaning.
Who Else Can See It? Tips for Skywatchers
Asia, Australia, eastern Africa and some parts of Europe will all see the Blood Moon. Estimates say up to 6.2 billion people, or about 77 percent of the world, will be able to watch it. The Americas will miss out, as the moon will set before the eclipse starts there. In Thailand, viewers should get a clear, high view of the moon for much of the night.
For the best experience, try these tips:
- Choose a dark spot well away from city lights. National parks or high ground, such as Doi Suthep near Chiang Mai, are good options.
- Check local weather forecasts since September can bring rain in Thailand. Look for clear skies.
- While you do not need special gear, a camera with a zoom lens or a telescope will help you see more detail or capture photos.
- During totality, the moon’s dim light lets more stars and even the Milky Way become visible, adding to the spectacle.
Why This Blood Moon Matters
This is a rare treat—Thais will not see another total lunar eclipse until 3 March 2026. The coming event stands out for its long totality and widespread visibility, making it one of the most notable lunar eclipses of the decade.
The lunar eclipse offers a chance to see an unusual side of the night sky and reflects the deep interest humans have had in the moon for centuries. Whether you study astronomy or just want to witness something beautiful, set a reminder for the night of 7-8 September 2025 and take a moment to watch as Thailand’s skies light up with this special show.
If you cannot be outside to see it yourself, many observatories and space agencies will stream the eclipse online, so everyone can share in the excitement. As the red moon rises over Thailand, it reminds people of Earth’s connection to the wider universe and the quiet beauty of the solar system’s rhythms.
