Thai Meteorological Department Explains Rain Radar Color Codes
The Thai Meteorological Department has released a guide on interpreting rain radar color codes via the 'TMD Weather' application to assist with daily planning.
On September 28, 2026, the Thai Meteorological Department (TMD) published a guide to help the public interpret rain radar imagery displayed on its 'TMD Weather' application. This initiative aims to assist residents and travelers in planning their daily activities, such as commuting or outdoor commerce, by providing clearer insights into weather patterns.
According to the TMD, rain radar functions by using radio wave reflections to map the location, intensity, and movement of precipitation. The department clarified the meaning of the color-coded intensity levels:
- Purple/Light Pink: Extremely heavy rain (over 100 mm/hr)
- Red: Very heavy rain (50–100 mm/hr)
- Orange: Relatively heavy rain (12.5–50 mm/hr)
- Yellow: Moderate rain (3–12 mm/hr)
For those living in or visiting Thailand, understanding these visual indicators can be a useful tool for navigating the country's often unpredictable tropical weather. By checking the application, users can better anticipate rainfall intensity before heading out. While the TMD has provided these definitions to improve public awareness, users should continue to monitor official updates for specific weather warnings or emergency alerts, as radar data represents current conditions and may change rapidly. The department encourages the public to utilize these digital tools to enhance their personal safety and logistical planning.
