Climate averages 1991–2020
Hạ Long weather
in June.
A hot, very wet month: the warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a hot month in Hạ Long: daytime highs average 30.8°C and nights cool to about 26.8°C. By daytime temperature it is the warmest month of the year.
Expect about 266 mm of rain on roughly 22 days, which makes June a very wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 23 min on an average June day.
The nearest other city in this atlas is Cẩm Phả (22 km away). In June its highs average 30.3°C, about as warm as Hạ Long, with 288 mm of rain.
Among the 136 cities listed in Vietnam, Hạ Long ranks joint 79th of 136 for the warmest June highs and 106th of 136 for the driest June (rainfall, lowest first). The mean June high of those 136 cities is 31.1°C; Hạ Long is 0.4°C cooler than that mean.
From June to July, average highs fall by 0.1°C to 30.7°C, and monthly rainfall rises from 266 mm to 305 mm.
The annual picture
June in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Hạ Long climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 19.1°C14.6°C | 14.6°C | 34 | 6.4 | 11.011 h |
| February | 20.5°C15.8°C | 15.8°C | 21 | 5.7 | 11.411 h |
| March | 23.2°C18.5°C | 18.5°C | 43 | 8.8 | 12.012 h |
| April | 26.7°C21.8°C | 21.8°C | 69 | 11.6 | 12.613 h |
| May | 29.3°C24.8°C | 24.8°C | 219 | 19.5 | 13.113 h |
| June, selected | 30.8°C26.8°C | 26.8°C | 266 | 22.4 | 13.413 h |
| July | 30.7°C26.8°C | 26.8°C | 305 | 24.3 | 13.313 h |
| August | 30.4°C26.1°C | 26.1°C | 381 | 26.2 | 12.813 h |
| September | 29.6°C25.0°C | 25.0°C | 243 | 20.0 | 12.312 h |
| October | 27.8°C22.9°C | 22.9°C | 104 | 11.9 | 11.712 h |
| November | 24.8°C19.6°C | 19.6°C | 51 | 8.2 | 11.211 h |
| December | 20.8°C15.8°C | 15.8°C | 31 | 5.9 | 10.911 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
June in nearby cities
- Cẩm Phả in JuneVietnam · 22 kmHigh 30.3°C · Low 26.6°C · 288 mm rain
- Haiphong in JuneVietnam · 42 kmHigh 31.6°C · Low 26.6°C · 214 mm rain
- Kiến An in JuneVietnam · 49 kmHigh 31.6°C · Low 26.9°C · 214 mm rain
- Thị Trấn Mạo Khê in JuneVietnam · 51 kmHigh 32.0°C · Low 26.3°C · 242 mm rain
- Thị Trấn Đông Triều in JuneVietnam · 60 kmHigh 32.1°C · Low 26.2°C · 242 mm rain
- Chũ in JuneVietnam · 71 kmHigh 31.4°C · Low 25.4°C · 287 mm rain
- Hải Dương in JuneVietnam · 77 kmHigh 32.5°C · Low 26.4°C · 246 mm rain
- Chí Linh in JuneVietnam · 80 kmHigh 32.4°C · Low 26.2°C · 246 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Hạ Long) is explained once on the Hạ Long year overview and on the Sources, method and limits page.