Hanoi (Soc Son) vs Haiphong (Hai An): which is sunnier?
🇻🇳 Vietnam vs 🇻🇳 Vietnam · 105 km apart · long-term climate normals (NASA POWER, 2001–2020)
Haiphong (Hai An) is the sunnier overall: about 1,414 hours of sunshine a year to Hanoi (Soc Son)'s 1,300. Their Sunshine Scores are within 2 points of each other in every month of the year.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.
At a glance
| Hanoi (Soc Son) | Haiphong (Hai An) | |
|---|---|---|
| Sunshine hours / year | 1,300 | 1,414 |
| Sunniest month | February (82/100) | February (82/100) |
| Nov–Feb average score | 80/100 | 80/100 |
| Jun–Aug average score | 58/100 | 59/100 |
| Rain / year | 1,607 mm | 1,645 mm |
| Peak midday UV | 9 (very high) | 9 (very high) |
Hanoi (Soc Son) vs Haiphong (Hai An) month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Hanoi (Soc Son) | Haiphong (Hai An) | Hanoi (Soc Son) | Haiphong (Hai An) | Hanoi (Soc Son) | Haiphong (Hai An) | |
| January | 80 | 79 | 21° | 20° | 32 | 39 |
| February | 82 | 82 | 24° | 22° | 22 | 25 |
| March | 77 | 77 | 27° | 25° | 49 | 50 |
| April | 72 | 74 | 31° | 28° | 78 | 69 |
| May | 58 | 59 | 32° | 30° | 179 | 168 |
| June | 58 | 59 | 32° | 31° | 201 | 213 |
| July | 58 | 59 | 32° | 31° | 300 | 302 |
| August | 58 | 59 | 32° | 31° | 322 | 338 |
| September | 58 | 59 | 31° | 30° | 223 | 240 |
| October | 63 | 64 | 28° | 28° | 124 | 122 |
| November | 76 | 77 | 25° | 25° | 52 | 51 |
| December | 81 | 81 | 21° | 21° | 25 | 28 |
The sunnier month by month: Jan even · Feb even · Mar even · Apr even · May even · Jun even · Jul even · Aug even · Sep even · Oct even · Nov even · Dec even.
When to pick which
- November–February: too close to call — Hanoi (Soc Son) averages 80/100, Haiphong (Hai An) 80/100. Daytime highs are similar (23°C vs 22°C). See the winter sun ranking.
- March–May: too close to call — Hanoi (Soc Son) averages 69/100, Haiphong (Hai An) 70/100. Hanoi (Soc Son) is the warmer, around 30°C daytime highs vs 28°C.
- June–August: too close to call — Hanoi (Soc Son) averages 58/100, Haiphong (Hai An) 59/100. Daytime highs are similar (32°C vs 31°C).
- September–October: too close to call — Hanoi (Soc Son) averages 61/100, Haiphong (Hai An) 62/100. Daytime highs are similar (30°C vs 29°C).
Full month-by-month guides: Hanoi (Soc Son) weather by month · Haiphong (Hai An) weather by month · Best time to visit Vietnam.
More comparisons: Hanoi (Soc Son) vs Thanh Hóa · Hanoi (Soc Son) vs Vinh · Haiphong (Hai An) vs Nanning (Jiangnan) · Haiphong (Hai An) vs Thanh Hóa · Haiphong (Hai An) vs Vinh · all head-to-heads