January in Mustique — reliably good (3rd best month)
Good · 7.3/10January averages 27°C (80°F) with humidity around 76%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Expect 32 mm of rain — occasional showers rather than washed-out days — alongside about 23 sunny days and 11.3 daylight hours.
It scores 7.3/10 here, 3rd of 12 months, against 7.4/10 in the destination's best month.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
February in Mustique — the year's strongest window
Best window · 7.4/10February averages 27°C (80°F) with humidity around 75%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rain is a non-issue at 14 mm for the month, with about 25 sunny days and 11.6 hours of daylight to work with.
On our climate-comfort scale this is the top-ranked month of the year for Mustique at 7.4/10 — the reference point every other month on this page is measured against.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
March in Mustique — reliably good (2nd best month)
Good · 7.4/10March averages 27°C (80°F) with humidity around 75%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rain is a non-issue at 12 mm for the month, with about 31 sunny days and 11.9 hours of daylight to work with.
It scores 7.4/10 here, 2nd of 12 months, against 7.4/10 in the destination's best month.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
April in Mustique — reliably good (4th best month)
Good · 7.2/10April averages 27°C (81°F) with humidity around 76%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Expect 23 mm of rain — occasional showers rather than washed-out days — alongside about 30 sunny days and 12.3 daylight hours.
It scores 7.2/10 here, 4th of 12 months, against 7.4/10 in the destination's best month.
Expect peak pricing, and this is one of the busiest months here.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
May in Mustique — workable with trade-offs
Trade-offs · 6.8/10May averages 28°C (83°F) with humidity around 78%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Expect 32 mm of rain — occasional showers rather than washed-out days — alongside about 30 sunny days and 12.6 daylight hours.
It scores 6.8/10 here, 5th of 12 months, against 7.4/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
June in Mustique — workable with trade-offs
Trade-offs · 5.8/10June averages 29°C (83°F) with humidity around 80%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rainfall runs 67 mm, so plan one flexible day in three; you still get about 26 sunny days and 12.8 hours of daylight.
It scores 5.8/10 here, 7th of 12 months, against 7.4/10 in the destination's best month.
Expect mid-season pricing, and crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.
If your dates are flexible, February is materially better in Mustique — 1.6 points higher on the same scale.
July in Mustique — workable with trade-offs
Trade-offs · 5.6/10July averages 29°C (83°F) with humidity around 81%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rainfall runs 73 mm, so plan one flexible day in three; you still get about 27 sunny days and 12.7 hours of daylight.
It scores 5.6/10 here, 8th of 12 months, against 7.4/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.
If your dates are flexible, February is materially better in Mustique — 1.8 points higher on the same scale.
August in Mustique — workable with trade-offs
Trade-offs · 5.2/10August averages 29°C (84°F) with humidity around 80%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rainfall runs 81 mm, so plan one flexible day in three; you still get about 27 sunny days and 12.4 hours of daylight.
It scores 5.2/10 here, 10th of 12 months, against 7.4/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.
If your dates are flexible, February is materially better in Mustique — 2.2 points higher on the same scale.
September in Mustique — workable with trade-offs
Trade-offs · 5.4/10September averages 29°C (85°F) with humidity around 78%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rainfall runs 68 mm, so plan one flexible day in three; you still get about 29 sunny days and 12.1 hours of daylight.
It scores 5.4/10 here, 9th of 12 months, against 7.4/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.
If your dates are flexible, February is materially better in Mustique — 2 points higher on the same scale.
October in Mustique — the hardest end of the year
Hardest · 4.9/10October averages 29°C (85°F) with humidity around 78%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rainfall runs 86 mm, so plan one flexible day in three; you still get about 25 sunny days and 11.7 hours of daylight.
It scores 4.9/10 here, 11th of 12 months, against 7.4/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.
If your dates are flexible, February is materially better in Mustique — 2.5 points higher on the same scale.
November in Mustique — the hardest end of the year
Hardest · 4.6/10November averages 29°C (83°F) with humidity around 80%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
At 107 mm this is a genuinely wet month: about 19 sunny days in total, and outdoor plans need an indoor fallback.
It scores 4.6/10 here, 12th of 12 months, against 7.4/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
If your dates are flexible, February is materially better in Mustique — 2.8 points higher on the same scale.
December in Mustique — workable with trade-offs
Trade-offs · 6.5/10December averages 28°C (82°F) with humidity around 77%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Expect 44 mm of rain — occasional showers rather than washed-out days — alongside about 20 sunny days and 11.2 daylight hours.
It scores 6.5/10 here, 6th of 12 months, against 7.4/10 in the destination's best month.
Expect peak pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
