Charlotte Amalie vs Sint Maarten: which is sunnier?
🇻🇮 U.S. Virgin Islands vs 🇸🇽 Sint Maarten · 200 km apart · long-term climate normals (NASA POWER, 2001–2020)
Charlotte Amalie and Sint Maarten are virtually tied for annual sunshine — about 3,108 vs 3,131 hours a year. Sint Maarten has the higher Sunshine Score in 12 of 12 months — a clean sweep.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.


At a glance
| Charlotte Amalie | Sint Maarten | |
|---|---|---|
| Sunshine hours / year | 3,108 | 3,131 |
| Sunniest month | February (92/100) | February (95/100) |
| Nov–Feb average score | 86/100 | 91/100 |
| Jun–Aug average score | 81/100 | 88/100 |
| Rain / year | 1,003 mm | 615 mm |
| Warmest sea | 31°C / 88°F | 31°C / 88°F |
| Peak midday UV | 12 (extreme) | 11 (extreme) |
Charlotte Amalie vs Sint Maarten month by month
| Month | Sunshine Score | Day high °C | Rain mm | Sea °C | ||||
|---|---|---|---|---|---|---|---|---|
| Charlotte Amalie | Sint Maarten | Charlotte Amalie | Sint Maarten | Charlotte Amalie | Sint Maarten | Charlotte Amalie | Sint Maarten | |
| January | 90 | 94 | 26° | 26° | 40 | 20 | 27° | 28° |
| February | 92 | 95 | 26° | 26° | 29 | 12 | 27° | 27° |
| March | 91 | 95 | 26° | 26° | 38 | 16 | 27° | 27° |
| April | 88 | 93 | 27° | 27° | 54 | 26 | 28° | 28° |
| May | 79 | 86 | 28° | 27° | 99 | 63 | 29° | 29° |
| June | 84 | 90 | 28° | 28° | 73 | 42 | 30° | 30° |
| July | 81 | 88 | 29° | 29° | 88 | 54 | 30° | 30° |
| August | 77 | 86 | 29° | 29° | 113 | 66 | 30° | 30° |
| September | 71 | 81 | 29° | 29° | 146 | 90 | 30° | 30° |
| October | 71 | 78 | 29° | 29° | 142 | 108 | 31° | 31° |
| November | 75 | 83 | 28° | 28° | 122 | 78 | 29° | 29° |
| December | 87 | 90 | 27° | 27° | 59 | 40 | 28° | 29° |
The sunnier month by month: Jan Sint Maarten · Feb Sint Maarten · Mar Sint Maarten · Apr Sint Maarten · May Sint Maarten · Jun Sint Maarten · Jul Sint Maarten · Aug Sint Maarten · Sep Sint Maarten · Oct Sint Maarten · Nov Sint Maarten · Dec Sint Maarten.
When to pick which
- November–February: Sint Maarten (average score 91/100 vs 86). Daytime highs are similar (27°C vs 27°C). See the winter sun ranking.
- March–May: Sint Maarten (average score 91/100 vs 86). Daytime highs are similar (27°C vs 27°C).
- June–August: Sint Maarten (average score 88/100 vs 81). Daytime highs are similar (29°C vs 29°C).
- September–October: Sint Maarten (average score 80/100 vs 71). Daytime highs are similar (29°C vs 29°C).
Sea temperature
Both seas peak at 31°C / 88°F. Swimmable water (21°C+): Charlotte Amalie all year, Sint Maarten all year. Month-by-month sea temperatures are in the table above.
Full month-by-month guides: Charlotte Amalie weather by month · Sint Maarten weather by month.
More comparisons: Charlotte Amalie vs San Juan · Charlotte Amalie vs Christiansted · Sint Maarten vs Antigua · Sint Maarten vs Basseterre · Sint Maarten vs Christiansted · all head-to-heads