Phu Quoc vs Rayong: which is sunnier?
🇻🇳 Vietnam vs 🇹🇭 Thailand · 429 km apart · long-term climate normals (NASA POWER, 2001–2020)
Rayong is the sunnier overall: about 2,377 hours of sunshine a year to Phu Quoc's 2,237. Rayong has the higher Sunshine Score in 3 of 12 months; the other 9 are within 2 points.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.
At a glance
| Phu Quoc | Rayong | |
|---|---|---|
| Sunshine hours / year | 2,237 | 2,377 |
| Sunniest month | February (89/100) | February (88/100) |
| Nov–Feb average score | 81/100 | 85/100 |
| Jun–Aug average score | 64/100 | 65/100 |
| Rain / year | 2,172 mm | 2,065 mm |
| Warmest sea | 32°C / 90°F | 32°C / 90°F |
| Peak midday UV | 11 (extreme) | 10 (very high) |
Phu Quoc vs Rayong month by month
| Month | Sunshine Score | Day high °C | Rain mm | Sea °C | ||||
|---|---|---|---|---|---|---|---|---|
| Phu Quoc | Rayong | Phu Quoc | Rayong | Phu Quoc | Rayong | Phu Quoc | Rayong | |
| January | 87 | 86 | 28° | 28° | 25 | 35 | 29° | 28° |
| February | 89 | 88 | 28° | 29° | 16 | 25 | 29° | 29° |
| March | 83 | 81 | 29° | 29° | 51 | 64 | 30° | 30° |
| April | 72 | 76 | 30° | 30° | 109 | 91 | 31° | 31° |
| May | 64 | 65 | 30° | 30° | 221 | 224 | 32° | 32° |
| June | 64 | 65 | 29° | 29° | 310 | 290 | 30° | 31° |
| July | 64 | 65 | 29° | 29° | 346 | 324 | 30° | 30° |
| August | 64 | 65 | 29° | 29° | 293 | 293 | 30° | 30° |
| September | 64 | 65 | 28° | 29° | 346 | 360 | 29° | 30° |
| October | 64 | 65 | 28° | 29° | 247 | 252 | 30° | 31° |
| November | 65 | 78 | 29° | 29° | 146 | 80 | 30° | 30° |
| December | 81 | 88 | 28° | 29° | 62 | 27 | 30° | 29° |
The sunnier month by month: Jan even · Feb even · Mar even · Apr Rayong · May even · Jun even · Jul even · Aug even · Sep even · Oct even · Nov Rayong · Dec Rayong.
When to pick which
- November–February: Rayong (average score 85/100 vs 81). Daytime highs are similar (28°C vs 29°C). See the winter sun ranking.
- March–May: too close to call — Phu Quoc averages 73/100, Rayong 74/100. Daytime highs are similar (30°C vs 30°C).
- June–August: too close to call — Phu Quoc averages 64/100, Rayong 65/100. Daytime highs are similar (29°C vs 29°C).
- September–October: too close to call — Phu Quoc averages 64/100, Rayong 65/100. Daytime highs are similar (28°C vs 29°C).
Sea temperature
Both seas peak at 32°C / 90°F. Swimmable water (21°C+): Phu Quoc all year, Rayong all year. Month-by-month sea temperatures are in the table above.
Full month-by-month guides: Phu Quoc weather by month · Rayong weather by month · Best time to visit Vietnam · Best time to visit Thailand.
More comparisons: Phu Quoc vs Phnom Penh (Boeng Khyang) · Phu Quoc vs Phnom Penh (Pou Senchey) · Phu Quoc vs Can Tho · Rayong vs Bangkok · Rayong vs Ko Samui · all head-to-heads