臺灣 · 春季展望 2026 🎙️ asian weatherman explains
AMIHAN EXITS ↝ transitional monsoon 🌬️➡️🌦️
Northeast monsoon gradually retreats, winds become variable. The West Pacific Subtropical High builds westward, sending bands of clouds and humidity toward Taiwan. Expect unstable conditions, occasional cold fronts mixing with warm, moist air.
🌡️ North–Central–South gradient
📊 Gradient prevails in early spring, relaxes by May. North still feels the last amihan pulses. Cool north-Medium central-Warmest south.
🌀 Neutral ENSO · Guam spawning
ENSO neutral south of Taiwan
Typical typhoon formation near Guam: near-average activity (12–16 storms). No strong El Niño/La Niña steering bias.
| Likely tracks during neutral spring | |
|---|---|
| Westward (Philippines / Taiwan) | 40% chance |
| Recurve (east of Taiwan) | 35% chance |
| Remain at sea / elsewhere | 25% chance |
🌀 Taiwan impact possible if steering level ridges align. Stay aware from May onward.
🌦️ Weather effects · spring params
| Parameter | Typical spring (MAM) 2026 |
|---|---|
| 💧 Precipitation | Gradual increase, showery; 150–300 mm/month |
| 🌬️ Surface winds | Light / variable, 5–15 km/h; NE weaker |
| ⚖️ Air pressure | Falling slowly 1015 → 1008 hPa |
| 💦 Humidity | Rising 70% → 85% (muggy by May) |
| 🌡️ Surface temps | North 17–25, Central 20–28, South 23–31 °C |
🌫️ Fog and coastal stratus possible during transitional flow.
☁️ Spring West Pacific High Bands
As the subtropical high strengthens, its western edge pushes bands of stratocumulus and occasional heavier showers toward Taiwan’s east coast. These bands interact with the remaining amihan moisture, producing prolonged overcast and drizzle — especially in Yilan and Hualien.
📅 Monthly trend
- 🌱 March: 18°C avg north, dry spells
- 🌸 April: humidity climbs, 23°C central
- ☔ May: pre‑plum showers, 27°C south
🌧️ What happens when plum rains arrive?
A stagnant front stalls near Taiwan, drawing deep tropical moisture. Prolonged heavy rain, thunderstorms, and sudden visibility drops. Lasts 2–4 weeks, often triggers flooding. The 2026 neutral ENSO suggests a near-normal onset, though the West Pacific High bands may pre‑moisten the atmosphere, leading to an abrupt start.
Asian weatherman note: the spring of 2026 will feel the breath of two seasons — cool remnants and warm, humid surges. Keep an eye on the West Pacific High bands: they set the stage for an active plum rain transition.