Celestial Calendar: Equinox 2026 & Eclipse Windows
The planning baseline for the autumn equinox sunrise at Angkor Wat — exact equinox instant, sunrise schedule, ticket purchasing, transport, and weather expectations.
Sep 20 — Sep 25
Six mornings of visible solar alignment with the central tower.
The Exact Equinox Instant in September 2026
The September 2026 autumn equinox occurs at 21:05 UTC on September 22, 2026. In Cambodia, which operates on Indochina Time (ICT, UTC+7), this translates to 04:05 AM local time on September 23, 2026. The equinox instant is the moment when the sun's apparent position crosses the celestial equator from north to south.
This instant does not coincide with the Angkor Wat sunrise time, but it frames the window. The sunrise on the morning of September 22 is the closest sunrise before the equinox, and the sunrise on September 23 is the closest sunrise after. Both mornings offer a visible Angkor Wat solar alignment with the central tower, and the difference in the sun's position between the two days is less than half a degree.
For practical purposes, the equinox alignment at Angkor Wat is observable from September 20 through September 25, 2026. The sun rises behind the central prasat on each of these mornings, and the alignment quality changes only slightly from day to day across this span.
Sunrise Times for the Equinox Window
Angkor Wat sunrise times change by about one minute per day in late September. The schedule below is based on 2026 astronomical data for the coordinates of Angkor Wat (13.41°N, 103.87°E). These times mark the moment the sun's upper edge appears on the horizon — the alignment with the central tower, when the sun sits directly behind the prasat, occurs approximately two to three minutes after the listed time. Plan to be in position by 5:30 AM on your chosen day.
The times below are for the sunrise instant, not the alignment instant — add two to three minutes for the sun to crest behind the central tower.
The Best Days to Visit
While the exact equinox instant falls on September 22, the best time to see the Angkor Wat equinox depends on your priorities. If you want to be there on the precise date, September 22 is the target — and it will be the most crowded. September 23 is the morning after the equinox instant, and it is equally valid for viewing the alignment.
If you want the best time to see the Angkor Wat sunrise without crowds, September 20 and September 24 are good choices. The alignment is still visible on these days, but visitor numbers are noticeably lower. Weekend dates may draw more local visitors, so check the day of the week for your target date: September 20, 2026 is a Sunday, and September 22 is a Tuesday.
If your schedule allows, plan to visit on two mornings during the window — one on the exact equinox date and one on an adjacent day. This gives you a backup in case of cloud cover on your primary day and increases your chances of a clear view. For more on distributing your visit across quieter mornings, see our guide on Angkor Wat sunrise without crowds.
Ticket Information for September 2026
Entry to the Angkor Archaeological Park requires a pass purchased from the official Angkor Enterprise office. The ticket office is located on Road 60, about 10 kilometers from Angkor Wat, and it opens at 5:00 AM. For the equinox sunrise, buying your pass the day before is strongly recommended — the morning queue can delay your arrival at the temple by 30 minutes or more.
The pass is printed with your photograph, which is taken at the office. Carry the pass with you at all times inside the park — it is checked at the entrance to Angkor Wat and at other major temples. If you plan to visit other temples in the complex during your stay, the three-day or seven-day pass offers better value per day.
Prices are reviewed periodically by Angkor Enterprise, so confirm the current rates before your visit through the official office or your hotel.
Transport from Siem Reap to Angkor Wat
Angkor Wat is 6 kilometers north of Siem Reap. The most common transport is a tuk-tuk, which takes 15 to 30 minutes depending on traffic. For the equinox sunrise, arrange your tuk-tuk the evening before — either through your hotel or directly with a driver. A round-trip for sunrise, including waiting time at the temple, costs between $15 and $25. Confirm the pickup time for the return trip, as drivers often wait in the parking area.
Private cars are also available and cost more, but they offer air conditioning and a quieter return — useful after an early start. Bicycles are an option if you are comfortable riding on mixed-use roads in the dark, and the route is flat. E-bikes and scooters can be rented in Siem Reap, but ensure they have sufficient charge and lights for pre-dawn travel. Plan to leave Siem Reap by 4:30 AM to reach the temple by 5:00 AM.
Weather and Light Conditions in September
September is in the green season in Cambodia — warm temperatures, high humidity, and frequent afternoon rain. Morning temperatures range from 23 to 26 degrees Celsius. The pre-dawn sky is often clear, but cloud cover can build after sunrise, which may affect visibility of the alignment. Rain is less common in the early morning, but it is possible, so bring a lightweight rain jacket or umbrella.
The green season means the moat and reflecting pools are full — an advantage for photography, as the towers mirror in still water during the Angkor Wat golden hour. The vegetation around the temple is lush, and the air is clear of dust, which can be a problem in the dry season. Mist can rise from the moat in the cool pre-dawn hours, adding atmosphere to the sunrise.
Be prepared for wet conditions underfoot. The stone surfaces of the causeway and temple terraces can be slippery after overnight rain. Wear shoes with grip and watch your footing on the raised stone walkways.
What to Do After the Sunrise
After the equinox sunrise, the crowd disperses over 30 to 45 minutes. Most visitors move into the temple complex for a self-guided tour, while others return to Siem Reap for breakfast. If you stay in the temple, the best time to explore the inner galleries and the central tower is immediately after sunrise, before the day-trip crowds arrive.
The bas-reliefs in the outer galleries are best viewed in the soft morning light, and the central tower is less congested before 8:00 AM. If you return to Siem Reap, the area around Pub Street and the Old Market has numerous cafes and restaurants that open early.
Consider visiting other temples in the complex in the late afternoon, when the light is softer and the crowds are thinner. Bayon, Ta Prohm, and Banteay Srei are all within the park and accessible by tuk-tuk from Angkor Wat.
For the Angkor Wat golden hour, the reflecting pools on the western causeway offer the classic mirror-lake composition. Arriving here shortly after sunrise means you avoid the densest crowd at the causeway entrance while still catching the warm light on the towers.
Planning for Multiple Mornings
If your travel schedule allows, plan to be at Angkor Wat for at least two mornings during the equinox window. This gives you a backup in case of cloud cover on your primary day and allows you to experience the alignment from different viewing positions.
On the first morning, position yourself on the causeway for the direct alignment view — the sun rises directly behind the central tower, and the silhouette is framed by the flanking towers. On the second morning, try the reflecting pools or the inner courtyard for a different perspective. The pools give you the mirrored composition; the inner courtyard places you closer to the structure and catches the first light striking the tower face.
Two mornings also let you adjust your photography settings and composition based on the conditions of the first day. If the sky was cloudy on September 22, the second morning on September 23 or 24 may give you the clear horizon you need. Hotel rates in Siem Reap in September are generally lower than in the peak dry season, so extending your stay by a day or two is a modest additional cost.
Confirm your transport and tickets for both days in advance. The ticket office allows you to purchase your pass the day before your first visit, and the same pass covers all mornings within its validity window.
Direct alignment view. The sun crests behind the central prasat. This is the classic composition and the most crowded position.
Mirrored tower composition. The pools are full in the green season, giving you the double-silhouette shot. Fewer visitors than the causeway.
Closer to the structure. First light strikes the tower face. Use this on a third morning or as a second-day alternative.
Where to Go From Here
If you are visiting during the equinox window, the Angkor Equinox Run is a separate event held in the park around the same period. It is organized independently from the sunrise viewing and has its own registration process — check the official event channels for current dates and entry details.
For the full Angkor Wat sunrise guide — covering camera settings, viewing positions, and how to read the light on the morning of your visit — see the dedicated viewing guide. For photography-specific advice during the golden hour, the photography tips page walks through exposure, lens choice, and composition.
Have planning questions about the September equinox?
The Sanctua Steps is based in Siem Reap and provides free informational guidance for visitors planning to see the Angkor Wat equinox sunrise. Reach out with questions about dates, transport, tickets, or weather.
The Sanctua Steps
Phum Trapeang Ses, Sangkat Kok Chak, Siem Reap 17251, Cambodia
+855 63 965 432