Dong Hoi weather by month & the best time to visit
🇻🇳 Vietnam · beach resort · tropical monsoon climate
The best time to visit Dong Hoi is February — its sunniest month (Sunshine Score 82/100), with March and January close behind. Dong Hoi averages about 1,435 hours of sunshine a year. Daytime highs around 23°C / 73°F and roughly 24 mm of rain in February.
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- Sun hours / year
- 1,435
- Sunniest month
- February
- Peak score
- 82/100
- Rain / year
- 1,930 mm
- Midday UV at peak
- 9 (very high)
- Sea at warmest
- 31°C / 88°F
- Population
- 189k
- Elevation
- 17 m

When is the best time to visit Dong Hoi?
For sunshine, the best time to visit Dong Hoi is February, then March and January. The dullest month is July (59/100, 156 mm of rain). The full month-by-month picture is in the table below.
How sunny is Dong Hoi?
Dong Hoi isn't a sunny place by world standards: about 1,435 hours of sunshine a year. February (82/100) is noticeably better than July (59). It ranks #18 of 22 destinations in Vietnam for annual sunshine, below the national median of 2,124 hours. Rain has a clear season: the wettest stretch, around September, carries about 57% of the annual 1,930 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 78 | 22° / 72°F | 20° / 68°F | 46 mm | 5 | 21° / 70°F |
| February | 82 | 23° / 73°F | 20° / 68°F | 24 mm | 6 | 22° / 72°F |
| March | 79 | 25° / 77°F | 22° / 72°F | 41 mm | 6 | 23° / 73°F |
| April | 76 | 27° / 81°F | 24° / 75°F | 57 mm | 8 | 27° / 81°F |
| May | 66 | 30° / 86°F | 26° / 79°F | 114 mm | 9 | 29° / 84°F |
| June | 69 | 31° / 88°F | 27° / 81°F | 95 mm | 9 | 31° / 88°F |
| July | 59 | 31° / 88°F | 27° / 81°F | 156 mm | 9 | 30° / 86°F |
| August | 59 | 30° / 86°F | 27° / 81°F | 229 mm | 9 | 31° / 88°F |
| September | 59 | 30° / 86°F | 27° / 81°F | 404 mm | 8 | 31° / 88°F |
| October | 59 | 28° / 82°F | 26° / 79°F | 466 mm | 6 | 29° / 84°F |
| November | 59 | 26° / 79°F | 24° / 75°F | 188 mm | 5 | 26° / 79°F |
| December | 67 | 23° / 73°F | 21° / 70°F | 110 mm | 4 | 24° / 75°F |
Sea temperature in Dong Hoi by month
The sea off Dong Hoi is warmest in June at around 31°C / 88°F, and coolest in January at 21°C / 70°F. The water sits at a comfortable 21°C or warmer roughly all year round. Month-by-month sea-surface temperatures are in the Sea column of the table above.
See Dong Hoi on the interactive sunshine globe →
Nearby places for sunshine
- Vinh Vietnam · 167 km · best in Feb · 1,406 h sun/yr
- Huế Vietnam · 171 km · best in Feb · 1,621 h sun/yr
- Da Nang Vietnam · 237 km · best in Feb · 2,154 h sun/yr
- Thanh Hóa Vietnam · 291 km · best in Feb · 1,456 h sun/yr
- Sanya (Tianya) China · 311 km · best in Feb · 2,058 h sun/yr
- Ubon Ratchathani Thailand · 312 km · best in Jan · 2,570 h sun/yr
Nearest destinations
- Nakhon Phanom Thailand · 207 km · 2,316 h sun/yr · best in Jan
- Pakse Laos · 279 km · 2,410 h sun/yr · best in Dec
Head-to-head
How Dong Hoi compares month by month: Dong Hoi vs Huế · Dong Hoi vs Da Nang · Dong Hoi vs Vinh · Dong Hoi vs Ubon Ratchathani · all comparisons
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