Temperature
Warm by day, warm at night.
81°Ftypical April high
Typical range
April climate
April in Ha Long Bay
Vietnam · Asia
Warm days and some sun. Humid air is the main drawback.
Good overall
Early to mid
Daytime high
81°F
Lows around 73°F
Rain
Several rainy days
Sun
8.5 h/day
Air feel
Very humid
Sea temp
76°F
Warm sea
When to visit
Month-by-month fit
Best
Precipitation
Several rainy days. About 12 wet days this month.
40%wet-day frequency
AmountWet-day chance
Sunshine
A mix of sunshine and cloud.
8.7 hApril sunshine
Heat & humidity by month
Very humid air is a major factor this month.
63%April Heat feel
Easy airWarm airHot airHumid airVery humid air
Hourly temperature pattern
In April, afternoons feel about 83° and nights feel near 78°.
CoolComfortableWarmHotSwelteringNight hours
Clear sky
Mostly cloudy skies this month.
29%April Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in April.
7 mphApril Light breeze
Sea temperature
76°FApril sea temp
More detailIncludes daypart comfort
Typical April day
April late afternoons are around 78°F, easing to about 76°F in early evening.
Avg temp Typical range
Morning77°F
Feels 81°F
Rain29%
Cloud79%
Humid airHigh
Sun intensityModerate
Midday80°F
Feels 83°F
Rain35%
Cloud77%
Humid airVery high
Sun intensityStrong
Late afternoon78°F
Feels 82°F
Rain18%
Cloud69%
Humid airVery high
Sun intensityModerate
Early evening76°F
Feels 81°F
Rain6%
Cloud61%
Humid airVery high
Sun intensityMinimal
Best windowData tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 67 | 59 | 1.3 | 6 | 5.4 | 79 | 70 |
| Feb | 69 | 61 | 0.9 | 6 | 5.5 | 82 | 70 |
| Mar | 74 | 66 | 1.6 | 9 | 6.4 | 85 | 72 |
| Apr | 81 | 73 | 2.9 | 12 | 8.7 | 84 | 76 |
| May | 87 | 78 | 8.7 | 20 | 9.3 | 83 | 82 |
| Jun | 90 | 82 | 10.4 | 22 | 8.7 | 83 | 85 |
| Jul | 90 | 81 | 11.8 | 25 | 8.6 | 84 | 85 |
| Aug | 89 | 80 | 15.0 | 26 | 8.3 | 85 | 85 |
| Sep | 88 | 78 | 10.3 | 21 | 9.0 | 83 | 85 |
| Oct | 85 | 74 | 4.5 | 13 | 9.5 | 77 | 82 |
| Nov | 79 | 68 | 2.0 | 9 | 8.5 | 76 | 78 |
| Dec | 71 | 61 | 1.1 | 6 | 6.7 | 73 | 74 |
Similar climates
Similar
Similar travel styleKampotCambodiaSimilar travel styleDavaoPhilippinesSimilar travel styleDominicaDominicaSimilar travel styleSamanaDominican Republic
Want a side-by-side climate view? Compare Ha Long Bay with Kampot.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology