Tomorrow's Weather: Nationwide Weather Shift with Heavy Rains! Typhoon 'Dolphin' to Have Strongest Impact on These Two Days – Thunderstorms for 5 Days, Full Weekly Forecast

Typhoon 'Dolphin', currently a strong typhoon, is moving westward toward the southern waters of Japan. According to the Central Weather Administration, 'Dolphin' will maintain its strength as a strong typhoon in the short term. However, from next Wednesday (5th) onward, weakening conditions may cause it to downgrade to a moderate typhoon. Despite potential weakening, its storm radius extends up to 300 kilometers, making it a large-scale system. Regardless of whether its path shifts toward the Yangtze River estuary in China, Korea, or closer to northern Taiwan’s waters, it will significantly impact Taiwan’s weather. The most pronounced effects are expected on Friday and Saturday (7th and 8th), when outer circulation will sharply increase rainfall probability in central-northern and northeastern Taiwan.

Will Typhoon 'Dolphin' weaken next week?

According to forecaster Zhang Cheng-chuan of the Central Weather Administration, Typhoon 'Dolphin' is currently located over 3,700 kilometers east of Taipei, moving northwest-west at 22 km/h, approaching the waters south of Japan and the Ryukyu Islands.

Analysis shows that 'Dolphin' will remain a strong typhoon until next Tuesday (4th). From next Wednesday to Thursday (5th–6th), unfavorable environmental conditions may weaken it to a moderate typhoon. However, even if weakened, its 7-level gale radius is expected to remain at 300 km, indicating a vast circulation system. Forecast uncertainty remains high beyond Friday, with possible closer approaches to northern Taiwan’s waters or landfall—requiring close monitoring.

Weekly Weather Outlook: Dry Start, Rainy End

Rainfall most evident on Friday and Saturday due to outer circulation

Due to moisture from the typhoon’s outer circulation and shifting wind patterns, Taiwan’s weather over the next week will follow a 'dry first, wet later' trend:

Sunday to Monday (2nd–3rd): Mostly cloudy to sunny summer weather across regions. Isolated afternoon thunderstorms possible in southern areas and mountainous regions.

Tuesday (4th): Winds shift to northeasterly to northerly. Scattered brief showers along the northern coast of Keelung and mountainous areas of greater Taipei. Afternoon thunderstorms still possible in southern, Hualien-Taitung, and central mountainous areas.

Wednesday to Thursday (5th–6th): Rainfall expands in the north, turning to intermittent localized showers. Early morning to morning showers in central and southern regions on Thursday, with heavier rain possible in mountainous areas in the afternoon.

Friday to Saturday (7th–8th): Direct influence from the typhoon’s outer cloud bands. Localized brief showers in northern, central, and southern regions on Friday. Saturday will see the most intense impact, with rain areas expanding further. Northern-central and northeastern Taiwan will experience localized showers, while scattered rain is possible elsewhere.

Future rainfall trends. (Image: Central Weather Administration)

Future rainfall trends. (Image: Central Weather Administration)

High temperatures to persist

Fire-wind risk in Yilan and Hualien-Taitung

Temperatures will remain high across Taiwan, generally between 32°C and 35°C. The Taipei basin and inland central-southern regions may see localized highs above 36°C.

Additionally, due to the typhoon’s outer wind field and terrain-induced subsidence, the Central Weather Administration warns of potential fire-winds (foehn effect). On Thursday and Friday (6th–7th), northerly winds may trigger fire-winds in Yilan. On Saturday (8th), as winds shift to northwesterly, the phenomenon may move to Hualien-Taitung. Outdoor activities require sun protection and adequate hydration.