Union weather by month & the best time to visit
🇻🇨 St. Vincent & Grenadines · beach resort · tropical — wet & dry seasons climate
The best time to visit Union is February — its sunniest month (Sunshine Score 93/100), with March and April close behind. Union averages about 3,004 hours of sunshine a year. Daytime highs around 27°C / 81°F and roughly 22 mm of rain in February.
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- Sun hours / year
- 3,004
- Sunniest month
- February
- Peak score
- 93/100
- Rain / year
- 977 mm
- Midday UV at peak
- 12 (extreme)
- Sea at warmest
- 31°C / 88°F
- Population
- 25k
- Elevation
- 7 m
When is the best time to visit Union?
For sunshine, the best time to visit Union is February, then March and April. The dullest month is October (71/100, 142 mm of rain). The full month-by-month picture is in the table below.
How sunny is Union?
Union is one of the sunniest places on Earth: about 3,004 hours of sunshine a year. February (93/100) is noticeably better than October (71). It ranks #5 of 5 destinations in St. Vincent & Grenadines for annual sunshine, right at the national median of 3,004 hours. The year's 977 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 89 | 27° / 81°F | 26° / 79°F | 44 mm | 9 | 28° / 82°F |
| February | 93 | 27° / 81°F | 26° / 79°F | 22 mm | 11 | 28° / 82°F |
| March | 92 | 27° / 81°F | 26° / 79°F | 28 mm | 12 | 28° / 82°F |
| April | 91 | 27° / 81°F | 27° / 81°F | 29 mm | 12 | 29° / 84°F |
| May | 86 | 28° / 82°F | 27° / 81°F | 59 mm | 11 | 29° / 84°F |
| June | 79 | 28° / 82°F | 27° / 81°F | 99 mm | 10 | 29° / 84°F |
| July | 76 | 28° / 82°F | 27° / 81°F | 114 mm | 10 | 29° / 84°F |
| August | 74 | 29° / 84°F | 28° / 82°F | 123 mm | 11 | 30° / 86°F |
| September | 76 | 29° / 84°F | 28° / 82°F | 114 mm | 11 | 31° / 88°F |
| October | 71 | 29° / 84°F | 28° / 82°F | 142 mm | 10 | 31° / 88°F |
| November | 73 | 28° / 82°F | 28° / 82°F | 131 mm | 9 | 30° / 86°F |
| December | 84 | 28° / 82°F | 27° / 81°F | 72 mm | 9 | 29° / 84°F |
Sea temperature in Union by month
The sea off Union is warmest in September at around 31°C / 88°F, and coolest in January at 28°C / 82°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 Union on the interactive sunshine globe →
Nearby places for sunshine
- Kingstown St. Vincent & Grenadines · 68 km · best in Feb · 3,040 h sun/yr
- Saint George's Grenada · 78 km · best in Feb · 3,005 h sun/yr
- Vieux Fort St. Lucia · 135 km · best in Feb · 3,039 h sun/yr
- Bridgetown Barbados · 215 km · best in Feb · 3,047 h sun/yr
- Port of Spain Trinidad & Tobago · 223 km · best in Mar · 2,546 h sun/yr
- Fort-de-France Martinique · 226 km · best in Feb · 3,048 h sun/yr
Nearest destinations
- Canouan St. Vincent & Grenadines · 13 km · 3,004 h sun/yr · best in Feb
- Carriacou Island Grenada · 15 km · 3,004 h sun/yr · best in Feb
- Mustique St. Vincent & Grenadines · 41 km · 3,004 h sun/yr · best in Feb
- Bequia St. Vincent & Grenadines · 46 km · 3,004 h sun/yr · best in Feb
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