Ha Long Bay in July: will you see it?
Short answer: In July, 63% of mornings and 79% of afternoons at a cruise deck were free of low cloud and fog over 2016-2025, and 5% of mornings were overcast. That makes July the best month for seeing Ha Long Bay.
79% chance of a clear afternoon
Sunrise 05:20 · sunset 18:37 (mid-July)
Winter and spring often bring mist over the karsts; summer is clearer but has storms.
All months
| Month | Clear mornings (7–9 am) | Clear afternoons (2–4 pm) | Overcast mornings |
|---|---|---|---|
| January | 30% | 40% | 48% |
| February | 25% | 34% | 61% |
| March | 20% | 32% | 64% |
| April | 33% | 46% | 40% |
| May | 48% | 60% | 14% |
| June | 65% | 76% | 7% |
| July | 63% | 79% | 5% |
| August | 64% | 69% | 6% |
| September | 67% | 75% | 8% |
| October | 69% | 70% | 8% |
| November | 56% | 69% | 18% |
| December | 50% | 55% | 31% |
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Questions
Can you see Ha Long Bay in July?
In July, 63% of mornings and 79% of afternoons at a cruise deck were free of low cloud and fog over 2016-2025, and 5% of mornings were overcast. That makes July the best month for seeing Ha Long Bay.
What time is sunrise at Ha Long Bay in July?
Around mid-July, sunrise is at 05:20 and sunset at 18:37 local time. Arrive at first light for the best odds of a clear view.