“2021-2025 Top 10 Mind-boggling Weather and Climate Events Selection” Poll Results
20 March 2026
The “2021-2025 Top 10 Mind-boggling Weather and Climate Events Selection” organised by the Hong Kong Observatory in collaboration with the Hong Kong Meteorological Society in early 2026 has successfully concluded, attracting near 2,000 votes. Participants were invited to choose the five weather and climate events that they considered to be the most significant or impactful, or the most representative of a climate crisis, from each of the “Hong Kong” and “Worldwide” categories. Among the participants, five correctly predicted all ten events that received the highest number of votes in both categories.The results of the poll are as follows:
“2021-2025 Top 10 Mind-boggling Weather and Climate Events Selection” (Hong Kong Category) (in Cantonese)
| “Hong Kong” Category | Event |
|---|---|
| 1 | 【2023】 “Black Rainstorm of the Century” |
| 2 | 【2025】 Five black rainstorms in July and August |
| 3 | 【2025】 Two No. 10 signals in a single year: The strikes of Wipha and Ragasa |
| 4 | 【2025】 Record-breaking tropical cyclone warning signals |
| 5 | 【2021】 Tropical cyclone on Winter Solstice? The latest issuance of tropical cyclone warning signals in a year |
Top 5 events with the highest number of votes in the “Hong Kong” category
“2021-2025 Top 10 Mind-boggling Weather and Climate Events Selection” (Worldwide Category) (in Cantonese)
| “Worldwide” Category | Event |
|---|---|
| 1 | 【2022】 European heatwaves |
| 2 | 【2024】 The first year to exceed 1.5°C above pre-industrial levels |
| 3 | 【2021】 Extreme cold waves in US |
| 4 | 【2024】 Super typhoon Yagi |
| 5 | 【2023】 Super typhoon Doksuri |
Top 5 events with the highest number of votes in the “Worldwide” category