| Month | High / low °C°F | Rain mmin | Air (US AQI) |
|---|---|---|---|
| Jan | 19° / 14°67° / 57° | 281.1 | no data |
| Feb | 20° / 15°67° / 59° | 251.0 | no data |
| Mar | 22° / 18°72° / 64° | 431.7 | 62 |
| Apr | 26° / 22°79° / 71° | 863.4 | 147 |
| May | 30° / 25°86° / 76° | 1837.2 | 70 |
| Jun | 32° / 26°89° / 79° | 29711.7 | 58 |
| Jul | 32° / 26°89° / 79° | 36414.3 | 64 |
| Aug | 31° / 25°88° / 78° | 43116.9 | 58 |
| Sept | 31° / 24°87° / 76° | 27610.9 | 58 |
| Oct | 29° / 22°84° / 72° | 1435.6 | 69 |
| Nov | 26° / 19°78° / 66° | 391.5 | 80 |
| Dec | 22° / 15°71° / 60° | 180.7 | 151 |
US AQI: 0 to 50 good, 51 to 100 moderate, 101 to 150 unhealthy for sensitive groups, 151 to 200 unhealthy, over 200 very unhealthy.
Temperature and rain: Bãi Cháy station, Wikipedia's climate table, citing IBST. Air: IQAir, monthly averages for 2025 in Ha Long. IQAir’s Ha Long data starts in March 2025, so January and February are blank and the 2025 average covers March to December. Checked 30 Oct 2026.
2 checked things to do. We have checked only a few things here so far. More is coming.
Evenings, opened 25 April 2026
About 100 food kiosks, craft stalls, indie bands, DJs and street performers on mobile stages, and a craft beer bar, next to the lighthouse in Bai Chay
Vietnamese news and Sun World social
Search in Vietnamese: chợ đêm VUI-Fest Hạ Long
Since April 2026
Four new joint routes (VHL3 to VHL6) let overnight boats from Tuan Chau and Ha Long International port sail on into Lan Ha Bay off Cat Ba, after Quang Ninh and Hai Phong agreed shared rules in March 2026
Vietnamese news, English listings catching up
Search in Vietnamese: du thuyền tuyến kết nối vịnh Hạ Long vịnh Lan Hạ