Siem Reap Hub

Weather: Rain and Storms from August 29 to September 3

The Ministry of Water Resources announces the arrival of storms Etau and Bang-lang, which will affect the monsoon and weather in Cambodia.

daily-life

Updated 2026-08-29 5 min

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In short

  • The Ministry of Water Resources and Meteorology has issued an official advisory on storms 22 (Etau) and 23 (Bang-lang).
  • These systems will affect the southwest monsoon, bringing rain, strong winds, and thunderstorms across Cambodia.
  • The affected period runs from August 29 to September 3, 2026, with potential disruptions to travel and outdoor activities.
  • Expats in Siem Reap are advised to follow weather bulletins and adjust their plans.
August 29 – September 3, 2026
Period
Etau (22) and Bang-lang (23)
Storms
Cambodia (nationwide)
Area
Ministry of Water Resources
Source

Key Facts at a Glance

  • 6 days of disruptions. Rain, strong winds, and thunderstorms expected from August 29 to September 3, 2026.
  • Two named storms. Etau (No. 22) and Bang-lang (No. 23) are influencing the southwest monsoon.
  • National impact. All provinces of Cambodia are affected, including Siem Reap.
  • Official advisory. The Ministry of Water Resources and Meteorology has issued a bulletin.
  • Preparation recommended. Expats should anticipate disruptions to travel and outdoor activities.

How It Unfolded

The Ministry issued a weather advisory regarding the arrival of two storms that will alter the weather in Cambodia.

  1. August 29: Official advisory published by the Ministry of Water Resources and Meteorology.
  2. August 29 – September 3: Period of weather disruptions, with rain, strong winds, and thunderstorms.
  3. Impact on the monsoon: Storms Etau and Bang-lang strengthen the southwest monsoon, increasing humidity and precipitation.
  4. Monitoring: The Ministry continues to monitor the storms' evolution and will issue updates if necessary.
  5. After September 3: Gradual return to more stable weather conditions, according to forecasts.

Breakdown by Region

The effects of the storms will be felt across the entire territory, but with varying intensities depending on the region.

RegionExpected IntensityDetails
Coastal areas (Sihanoukville, Kep)HighViolent winds, heavy rain, risk of high waves
Central plains (Phnom Penh, Kampong Cham)Moderate to highFrequent thunderstorms, possible water accumulation
Siem Reap and northwestModerateSustained rain, occasionally strong winds
Mountainous areas (Ratanakiri, Mondulkiri)ModerateRisk of landslides in sensitive areas
Mekong and Tonlé Sap basinsHighRising water levels, possible localized flooding

What It Means for Siem Reap

  • Expect delays in your travels due to slippery roads and reduced visibility.
  • Outdoor activities (temple visits, excursions) may be canceled or postponed.
  • Check road conditions before heading to rural or flood-prone areas.
  • Power outages are possible during severe thunderstorms; keep backup lights.
  • Stay informed via local weather bulletins and ministry alerts.

How to Stay Out of Trouble

  1. Follow alerts: Check the Ministry of Water Resources and Meteorology forecasts daily.
  2. Avoid non-essential travel: Limit outings during heavy rain and thunderstorms.
  3. Prepare an emergency kit: Water, non-perishable food, flashlight, power bank, medications.
  4. Secure your home: Bring in items that could be blown away by wind, check gutters.
  5. Protect your devices: Use protection against moisture and power surges.
  6. In case of flooding: Do not walk or drive through flooded areas; seek higher ground.
  7. Inform those around you: Share your route if you must go out, and stay reachable.

Frequently asked questions

What are the exact dates of the weather disruptions?
The disruptions are expected from August 29 to September 3, 2026, with rain, strong winds, and thunderstorms across Cambodia.
What are the names of the storms involved?
They are storms 22 (Etau) and 23 (Bang-lang), which are affecting the southwest monsoon.
Is there any risk to the Angkor temples?
Rain can make paths slippery, but the temples remain accessible. It is advisable to check conditions on site and bring waterproof clothing.
What should I do in case of a power outage?
Keep flashlights, candles, and backup batteries. Avoid using electrical appliances during thunderstorms.
Where can I find official weather bulletins?
The Ministry of Water Resources and Meteorology publishes updates on its website and via local media. Also follow Telegram channels like Khmer Times Breaking News.

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