Hạ Long Climate by Month
Hạ Long, Quảng Ninh, Vietnam
Hot days and mild nights all year, with a rainy season from June to September.
Hạ Long has hot days and mild nights all year, with a rainy season from June to September. June is the warmest month, with highs around 89°F (32°C); January is the coolest at 66°F (19°C), and nights dip to 57°F (14°C). Of the 79 in (2014 mm) of rain in a typical year, 78% falls from June to September. The air is humid, averaging 84% relative humidity.
- Warmest month
- 89°F(32°C)
- Average high, June
- Coldest nights
- 57°F(14°C)
- Average low, January
- Rain per year
- 79 in(2014 mm)
- Wettest: July
- Humidity
- 84%
- Sunniest: June
Best and worst months in Hạ Long
Best for weatherNovember is the best time for weather in Hạ Long: highs near 77°F (25°C) and about 1.2 in (31 mm) of rain a month.
Least pleasantJuly is the least pleasant month: it's the wettest, with 21 in (530 mm) of rain.
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in November.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Hạ Long weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 66°F(19°C) | 57°F(14°C) | 0.6 in(16 mm) | 81% | 2.9 |
| FebFebruary | 67°F(20°C) | 59°F(15°C) | 1.1 in(29 mm) | 86% | 3.4 |
| MarMarch | 71°F(22°C) | 63°F(17°C) | 1.7 in(44 mm) | 93% | 3.7 |
| AprApril | 79°F(26°C) | 70°F(21°C) | 2.2 in(56 mm) | 90% | 4.5 |
| MayMay | 86°F(30°C) | 75°F(24°C) | 7.6 in(193 mm) | 84% | 5.2 |
| JunJune | 89°F(32°C) | 79°F(26°C) | 10 in(262 mm) | 86% | 5.3 |
| JulJuly | 89°F(32°C) | 79°F(26°C) | 21 in(530 mm) | 86% | 5.3 |
| AugAugust | 88°F(31°C) | 78°F(25°C) | 18 in(467 mm) | 86% | 5.1 |
| SepSeptember | 87°F(31°C) | 76°F(25°C) | 12 in(306 mm) | 83% | 5.0 |
| OctOctober | 84°F(29°C) | 73°F(23°C) | 2.2 in(55 mm) | 79% | 4.7 |
| NovNovemberBest | 77°F(25°C) | 66°F(19°C) | 1.2 in(31 mm) | 75% | 3.7 |
| DecDecember | 69°F(21°C) | 59°F(15°C) | 1.0 in(25 mm) | 78% | 2.9 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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