Ha Long weather in June

In June, Ha Long sees average daytime highs of 31°C and overnight lows near 27°C, with 266 mm of rain across 22.4 wet days and about 13.2 hours of daylight. It is the 1st-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 7% of the time in June, and the air most often feels miserable.

Daylight stretches from about 13 h 12 min at the start of June to 13 h 18 min by month's end. Set against the rest of the year, June is Ha Long's 12th-clearest and 2nd-windiest month. For the whole year in context, see Ha Long's year-round climate.

Daytime high
31°
1st warmest
Overnight low
27°
12th coldest
Rainfall
266 mm
22.4 wet days
Daylight
13 h 18 min
5:14 AM – 6:30 PM
Cloud cover
87%
12th clearest
Wind
11 km/h
2nd windiest
Solar energy
4.98 kWh/m²
Travel score
2.9
out of 10

Ha Long is provincial city of Vietnam.

Air quality
Elevated
PM10 47 µg/m³ · 2015
Density
993/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical June day in Ha Long reaches about 31°C in the afternoon and slips back to 27°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 34°C. Set against its neighbours, June runs about 2°C warmer than May and on par with July.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13126
23126
33126
43126
53126
63126
73126
83126
93126
103126
113127
123127
133127
143127
153127
163127
173127
183127
193127
203127
213127
223127
233127
243127
253127
263127
273127
283127
293127
303127

How June really feels in Ha Long

Once humidity and wind are folded in, June averages 30 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
30
20 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

The story in June is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Ha Long weather by month

How June compares with the rest of the year at a glance. June is the 1st-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan19° / 15°346.510.96.3
Feb20° / 16°215.611.36.4
Mar22° / 18°448.811.96.5
Apr26° / 22°6911.612.56.0
May30° / 25°21919.5133.9
Jun31° / 27°26622.413.22.9
Jul31° / 27°30524.313.12.8
Aug31° / 26°38126.212.72.7
Sep30° / 25°2432012.13.6
Oct28° / 23°10411.911.55.7
Nov25° / 19°518.2117.1
Dec21° / 16°315.910.87.0

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 7% of the time in June, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 5% of June, with mostly cloudy or overcast conditions the remaining 88%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11684
21585
31486
41387
51387
61288
71288
81288
91288
101189
111189
121090
131090
141090
151090
161090
171090
181189
191189
201288
211288
221288
231288
241288
251288
261387
271387
281387
291486
301486

Chance of precipitation in June

Any precipitation

Ha Long gets around 266 mm of rain over 22.4 wet days in June. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 74% and peaks near 77% on the wettest days.

0%20%40%60%80%151015202530
Rain chance (%)
171
271
372
472
572
673
773
873
973
1074
1174
1274
1374
1474
1575
1675
1775
1875
1975
2075
2176
2276
2376
2476
2576
2676
2776
2877
2977
3077

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

Most of June feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, June lands in the miserable band about 93% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
141482
231384
331384
421286
521187
621088
721088
82989
91990
101891
111891
121792
131792
141693
151693
161594
171594
181495
191495
201396
211396
220298
230298
240298
250298
260199
270199
280199
290298
300298

Wind in June

Winds average 11 km/h in June.

Across June, daily wind ranges from about 10 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm

Sunrise & sunset in June

DaylightNight

Daylight runs from about 13 h 12 min at the start of June to 13 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over June. Sunrise moves from 5:14 AM to 5:17 AM, and sunset from 6:25 PM to 6:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.25:146:25
213.25:146:25
313.25:146:25
413.25:146:26
513.25:146:26
613.25:146:27
713.25:136:27
813.25:136:27
913.25:136:28
1013.25:146:28
1113.25:146:28
1213.35:146:29
1313.35:146:29
1413.35:146:29
1513.35:146:30
1613.35:146:30
1713.35:146:30
1813.35:146:30
1913.35:146:31
2013.35:156:31
2113.35:156:31
2213.35:156:31
2313.35:156:32
2413.35:156:32
2513.35:166:32
2613.35:166:32
2713.35:166:32
2813.35:166:32
2913.35:176:33
3013.35:176:33

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 4.98 kWh/m².

For context, solar energy here swings from a low near 2.58 kWh/m² to a high of 5.07 kWh/m² in May across the year — June's 4.98 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
94.9Bright
104.9Bright
114.9Bright
124.9Bright
134.9Bright
144.9Bright
154.9Bright
164.9Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.1Bright
Planning a trip in June

Hazard calendar for Ha Long

In seasonPeak

In June, Ha Long sits inside its pacific typhoon and monsoon season. The full year is below, with each hazard's peak months called out.

Ha Long sits in the Pacific typhoon belt; the season peaks July–October.

Ha Long's monsoon runs May–September, when most of the year's rain falls.

Pacific typhoon
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is June a good time to visit Ha Long?

Our two travel scores rate June for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

2.9
Sightseeing
10th-best month of the year
4.4
Beach & pool
8th-best month of the year

June is a weaker month for outdoor sightseeing in Ha Long.

What to pack for Ha Long in June

From June's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In June, Ha Long sees daytime highs around 31°C and nights near 27°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.

light clothesrain gearsun protection

Sea temperature near Ha Long in June

The nearest coast averages about 29°C in June — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 32 km away) is warmest in August at about 30°C and coldest in February near 19°C.

It's comfortable for a long swim from Mar 13 to Jan 10 — about 10 months when the water holds above 20°C.

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan20Cool
Feb19Cool
Mar20Refreshing
Apr23Refreshing
May27Warm
Jun29Tropical
Jul29Tropical
Aug30Tropical
Sep29Tropical
Oct28Warm
Nov25Warm
Dec22Refreshing

UV index in Ha Long in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ha Long peaks around July 12 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 6 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highHighJul 12UV 12Dec 19UV 6
UV index (midday)Level
Jan7High
Feb8Very high
Mar9Very high
Apr8Very high
May10Extreme
Jun12Extreme
Jul12Extreme
Aug9Very high
Sep9Very high
Oct9Very high
Nov7High
Dec6High

Air quality in Ha Long in June

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where June falls, not just the annual average.

Air quality in Ha Long is worst in January — around 42 µg/m³ PM2.5 (poor), about 2.6× the cleanest month (July, 16 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorJan 2342 µg/m³Jul 1716 µg/m³
PM2.5 (µg/m³)Level
Jan42Poor
Feb42Poor
Mar41Poor
Apr40Poor
May26Moderate
Jun19Moderate
Jul16Moderate
Aug18Moderate
Sep21Moderate
Oct27Moderate
Nov29Moderate
Dec39Poor
Location & terrain

Where is Ha Long?

Ha Long sits at 21.0°N, 107.1°E, 8 m above sea level, in Vietnam. The nearest listed city is Cẩm Phả, 22 km away.

Topography around Ha Long

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ha Long.

Within 3 km, the terrain around Ha Long has only modest variations in elevation — a maximum elevation change of 150 m around an average of 9 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 679 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,530 m.

The land around Ha Long is covered by water (57%) and artificial surfaces (21%) within 3 km, water (46%) and trees (37%) within 16 km, and trees (42%) and water (42%) within 80 km.

3 km
150 m
16 km
679 m
80 km
1,530 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
June weather nearby: Cẩm Phả 22 km · Cẩm Phả Mines 25 km · Cát Bà 25 km · Thành Phố Uông Bí 33 km · Đố Sơn 40 km · Haiphong 42 km · Thị Trấn Ba Chẽ 42 km · Kiến An 49 km

Vietnam travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B / C / F
220 V · 50 Hz
Prices
≈ 29% of US
price level, 2025
GDP per capita
$5,066
2025
Happiness
6.4 / 10
World Happiness, 2025
Safe drinking water
59%
of population, 2024
Homicide rate
1.5
per 100k, 2011
Road deaths
30.6
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 500
Religion
none 86%Catholic 6%Buddhist 6%Protestant 1%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Ha Long (20.9505°, 107.0734°, elevation 8 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).