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.
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.
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Union: questions and answers
What kind of destination is Union?
Union is a beach resort in St. Vincent & Grenadines with a tropical — wet & dry seasons climate — the sea reaches 31°C at its warmest and is swimmable (21°C+) year-round.
How many hours of sunshine does Union get a year?
Union gets about 3,004 hours of sunshine a year, at its best around February.
When is the best time to visit Union?
The sunniest time to visit Union is February, when the Sunshine Score peaks at 93/100 (with March and April close behind). Expect daytime highs around 27°C / 81°F.
What is the least sunny month in Union?
October is the least sunny month in Union, scoring 71/100 with about 142 mm of rain.
What is the sea temperature in Union?
The sea in Union ranges from about 28°C (January) to 31°C (September). Month-by-month sea temperatures are on this page.
How strong is the sun in Union?
The typical midday UV index in Union peaks around 12 (extreme) in March, easing to about 9 (very high) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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