The Central Weather Administration (CWA) has forecast relatively stable weather in Taiwan until Thursday (March 28, 2025), with significant temperature differences between day and night. However, a major shift is expected by Friday (March 29, 2025) as a passing weather system, combined with strengthened northeasterly winds and a continental cold air mass, will bring island-wide rain and thunderstorms.
Current Weather Conditions in Taiwan
According to CWA forecaster Liu Pei-teng (劉沛滕), a high-pressure system from the north has caused dry and cold air to move southward, leading to low humidity levels in Taipei and New Taipei since Saturday. The system has created a noticeable temperature gap between daytime warmth and nighttime chills, making mornings and evenings significantly cooler.
Temperature Trends
- Taipei and Northern Taiwan: Warm afternoons, but chilly mornings and nights due to dry air.
- Central and Southern Taiwan: Mild and stable weather with slightly higher humidity levels.
- Eastern Taiwan: Scattered showers expected, especially in Taitung County and the Hengchun Peninsula.
As the high-pressure system moves away, moisture levels will gradually rise from Tuesday (March 26, 2025), leading to more cloud cover and a slight increase in humidity.
Weather Forecast Until Thursday (March 28, 2025)
During the first half of the week, most parts of Taiwan will experience sunny to partly cloudy weather. However, due to southeasterly winds, Taitung County and the Hengchun Peninsula will experience scattered rainfall, while the rest of the island remains relatively dry.
Despite the clear skies, temperature differences between day and night will be significant, so residents are advised to dress in layers to adjust to fluctuating temperatures.
Expected Temperatures (March 25–28, 2025)
| Region | Daytime High (°C) | Nighttime Low (°C) |
|---|---|---|
| Taipei & Northern Taiwan | 25–28°C | 14–17°C |
| Central Taiwan | 26–29°C | 16–19°C |
| Southern Taiwan | 27–30°C | 18–21°C |
| Eastern Taiwan | 24–27°C | 16–18°C |
Major Weather Shift: Heavy Rain & Thunderstorms from Friday (March 29, 2025)
A major weather system will pass over Taiwan starting Friday, bringing strong seasonal northeasterly winds and a continental cold air mass. This will lead to a dramatic shift, with rainfall expected across the entire island.
Expected Weather Changes from March 29–April 2, 2025
- Northern Taiwan (Taipei, Keelung, Taoyuan): Heavy showers, thunderstorms, and temperature drops.
- Central Taiwan (Taichung, Changhua, Nantou): Intermittent rain, lower temperatures at night.
- Southern Taiwan (Tainan, Kaohsiung, Pingtung): Occasional thunderstorms, but overall less rain than in the north.
- Eastern Taiwan (Yilan, Hualien, Taitung): Persistent rainfall with occasional heavy showers.
- Mountainous Areas: High risk of landslides and falling rocks due to continuous rain.
Possible Impacts of the Weather Shift
- Flooding Risk: Low-lying areas in Taipei, Keelung, and Taoyuan may experience urban flooding due to heavy rain accumulation.
- Landslides & Rockfalls: Mountainous regions, especially in central and eastern Taiwan, could be at risk. Travelers should avoid mountain roads if possible.
- Travel Disruptions: Flight delays are possible, particularly at Taipei Songshan Airport and Taoyuan International Airport, due to bad weather conditions.
CWA advises residents to carry umbrellas and raincoats and to stay updated with real-time weather reports before planning outdoor activities.
FAQs
How long will the stable weather last?
Stable weather will last until Thursday, March 28, 2025. After that, a cold front and weather system will bring rain and thunderstorms.
Where will it rain the most?
Northern Taiwan, central mountainous areas, and the east coast are expected to receive the heaviest rain and thunderstorms.
Will temperatures drop significantly?
Yes. Due to strengthened northeasterly winds and a cold air mass, temperatures will drop by 5–8°C, especially in northern and central Taiwan.
Will this affect transportation?
Heavy rain may cause flight delays, train slowdowns, and road disruptions due to potential landslides and flooding.
When will the rain stop?
Rainfall is expected to continue until Tuesday, April 2, 2025, after which conditions should gradually improve.
How should I prepare for this weather change?
Carry rain gear (umbrella, raincoat) at all times.
Dress in layers due to fluctuating temperatures.
Check weather updates before traveling, especially if using public transportation.
