Temperature
Hot by day, warm at night.
85°Ftypical October high
Typical range
October climate
October in Ha Long Bay
Vietnam · Asia
Hot days and plenty of sun. Humid air is the main drawback.
Good overall
Mid to late
Daytime high
85°F
Lows around 74°F
Rain
Several rainy days
Sun
9.5 h/day
Air feel
Very humid
Sea temp
82°F
Great for swimming
When to visit
Month-by-month fit
Best
Precipitation
Several rainy days. About 13 wet days this month.
42%wet-day frequency
AmountWet-day chance
Sunshine
Plenty of sun this month.
9.5 hOctober sunshine
Heat & humidity by month
Very humid air is a major factor this month.
60%October Heat feel
Easy airWarm airHot airHumid airVery humid air
Hourly temperature pattern
In October, afternoons feel about 87° and nights feel near 79°.
CoolComfortableWarmHotSwelteringNight hours
Clear sky
Partly cloudy skies this month.
47%October Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in October.
7 mphOctober Light breeze
Sea temperature
82°FOctober sea temp
More detailIncludes daypart comfort
Typical October day
October late afternoons are around 82°F, easing to about 79°F in early evening.
Avg temp Typical range
Morning80°F
Feels 84°F
Rain28%
Cloud54%
Humid airHigh
Sun intensityModerate
Midday84°F
Feels 87°F
Rain32%
Cloud60%
Humid airHigh
Sun intensityStrong
Late afternoon82°F
Feels 86°F
Rain22%
Cloud54%
Humid airVery high
Sun intensityLow
Early evening79°F
Feels 84°F
Rain10%
Cloud47%
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