How long will the rainy weather last in Taiwan?

Heavy rain and thunderstorms are expected for about 10 days starting August 11, especially in southern and western regions.

Will Typhoons Kanho and Bavi make landfall in Taiwan?

No direct landfall is expected; both are projected to move toward Japan.

Which areas are under high-temperature alerts?

Eight counties and cities, including Taipei and Taitung, may see temperatures above 36°C.

What is a foehn wind?

A warm, dry wind caused by air descending after crossing mountains, common in Taitung.

When will the weather improve in Taiwan?

Unstable conditions will continue until around August 20, then gradually clear.

Weather Forecast: Dual Typhoons May Affect Taiwan? Nationwide Rainy Turn with Heavy Downpours for 10 Days; Meteorological Agency Reveals When Sunshine Returns

Published Aug 11, 2026 10:30 AM ・ Updated Aug 11, 2026 11:21 AM ・ 8 min read ・ Source: PR Times

The Central Weather Administration issued a high-temperature advisory today (11th), warning of extreme heat exceeding 36°C in eight counties and cities, including Greater Taipei and Taitung, where foehn winds may occur. Influenced by monsoon circulation and southwest monsoon, Taiwan's atmosphere will remain highly unstable until August 20, bringing prolonged rainfall.

The Central Weather Administration issued a high-temperature advisory today (11th), stating that due to the subsidence effect of the southwest wind, weather across Taiwan will be hot and sweltering. Eight counties and cities—including Greater Taipei and Taitung—may experience extreme temperatures above 36°C, with special caution advised for foehn winds in Taitung.

Meteorological expert Wu De-rong noted that from today through the 20th, Taiwan will be affected by both the monsoon circulation and the southwest monsoon, resulting in an extremely unstable atmosphere. Localized showers or thunderstorms are likely in southwestern regions, while central and northern areas must remain vigilant against severe afternoon thunderstorms.

### High-Temperature Yellow Alert Issued for 8 Counties and Cities! Taitung Warned of Foehn Winds

The Central Weather Administration has issued a high-temperature alert, indicating that subsiding southwest winds are causing hot and oppressive conditions nationwide. Taitung County is at risk of experiencing foehn winds. During daytime hours, Taipei City, New Taipei City, Taoyuan City, Hsinchu County, Miaoli County, Changhua County, Hualien County, and Taitung County are under a yellow alert, with temperatures expected to exceed 36°C.

### Monsoon Gyre Lingers Over Northwest Pacific! Latest Tracks of Typhoons 'Kanho' and 'Bavi' and Tropical Depression Revealed

Latest paths of Typhoon Bavi and Kanho. (Image: Central Weather Administration official website)

Wu De-rong, adjunct associate professor in the Department of Atmospheric Sciences at Chung Yuan Christian University, analyzed in his column "Leak the Secrets of Heaven" that a massive "monsoon gyre" currently dominates the northwest Pacific, influencing surrounding tropical systems as follows:

#### Typhoon No. 15 'Kanho'

Guided by the northern edge of the monsoon gyre, it is moving westward to southwest-westward. Over the next two days (11th–12th), it will directly impact Japan’s Honshu and Shikoku regions. Travelers bound for Japan should closely monitor flight updates.

#### Typhoon No. 16 'Bavi'

Located on the southeastern side of the monsoon gyre, it is accelerating northeastward away from Taiwan under the influence of southwest winds.

#### Tropical Depression:

Positioned east of the monsoon gyre, it is currently moving northward.

Wu stated that all three tropical systems are rotating counterclockwise around the monsoon gyre and pose no direct threat to Taiwan. However, over the next week, this gyre will play a crucial role in sustaining the southwest monsoon and moisture transport from the South China Sea, continuously affecting Taiwan’s weather.

### Two-Phase Weather Trend Over the Next Week! Rainfall Timeline Driven by Southwest Monsoon Moisture

Under the influence of the monsoon gyre and southwest monsoon, the next 10 days can be divided into two phases:

#### Phase One: From Today to August 15 (Highly Unstable Atmosphere)

- **Windward Side (Southwestern Regions)**: Direct impact from moist southwest winds increases likelihood of localized showers or thunderstorms. - **Central and Northern Areas**: Afternoon thunderstorms may develop locally, with potential for heavier rainfall in some areas. - **Non-Rain Periods and Eastern Half**: Daytime weather remains sunny and scorching, with high humidity and discomfort. Sunburn and heatstroke prevention is essential.

#### Phase Two: August 16 to 20 (Transition to Low-Pressure Trough Influence)

- **Shifting Wind Patterns**: The area near Taiwan transitions under the influence of a low-pressure trough, with winds gradually shifting from southwest to northeast. - **Weather Pattern**: The atmosphere remains unstable with abundant moisture, leading to scattered localized rains. Strong convective development is common in the afternoons. - **Warning**: Daytime periods before rain still feel hot, and daily convective intensity varies significantly. Stay updated with the latest short-term weather advisories.

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Source: PR Times
Category: News

Weather Forecast: Dual Typhoons May Affect Taiwan? Nationwide Rainy Turn with Heavy Downpours for 10 Days; Meteorological Agency Reveals When Sunshine Returns

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