Station information
Station ID · C1I500
- Location
- 南投縣仁愛鄉
- Longitude
- 120.99489
- Latitude
- 23.85857
- Altitude
- 2017 m
- Maintainer
- 中央氣象署
大尖山 Station
Latest rainfall observations and station information for 大尖山.
Live rainfall highlights
A quick summary of this station’s latest 1-, 3-, and 24-hour rainfall observations.
No rain recorded in the past hour
大尖山 recorded 0.0 mm over the past hour, 0.0 mm over the past 3 hours, and 0.5 mm over the past 24 hours.
No rain was recorded in the latest 3 hours. The 24-hour total comes from earlier periods. Compare nearby stations to see whether they show a similar pattern.
Past 24-Hour Rainfall History
Unit: millimeters (mm)Hourly rainfall observations over the past 24 hours.
Latest rainfall observations
Unit: millimeters (mm)Observed at: 09/18/2026 13:10
1 hourBelow classification threshold(Heavy rain ≥ 40)
0.0
3 hoursBelow classification threshold(Extremely heavy rain ≥ 100)
0.0
➖ vs prev 3h: 0.0 mm
24 hoursBelow classification threshold(Heavy rain ≥ 80)
0.5
➖ vs yesterday: +0.5 mm
Rainfall FAQ and interpretation
Understand rainfall units, regional navigation, and how to use station observations correctly.
FAQ
The 24-hour hyetograph displays hourly precipitation volumes recorded over the past 24 hours in a chronological bar sequence.
Key takeaways for reading this chart: 1. [Persistent Inflow]: Steady, uniform bars across multiple consecutive hours indicate continuous frontal rainfall, monsoon troughs, or typhoon outer rainbands. 2. [Flash Downpours]: A solitary spike towering over 1 to 2 hours reflects sudden convective thunderstorms, signaling immediate localized drainage strain. 3. [Rainfall Momentum]: Comparing the recent bars on the far right shows whether rainfall is easing off (shortening bars) or escalating (growing bars).