January in Great Blue Hole — reliably good (5th best month)
Good · 7.5/10January averages 27°C (80°F) with humidity around 79%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
At 106 mm this is a genuinely wet month: about 18 sunny days in total, and outdoor plans need an indoor fallback.
It scores 7.5/10 here, 5th of 12 months, against 9.5/10 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 proper rain shell rather than an umbrella.
If your dates are flexible, April is materially better in Great Blue Hole — 2 points higher on the same scale.
February in Great Blue Hole — the year's strongest window
Best window · 8.6/10February averages 26°C (79°F) with humidity around 78%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rainfall runs 72 mm, so plan one flexible day in three; you still get about 21 sunny days and 11.4 hours of daylight.
On our climate-comfort scale this is the top-ranked month of the year for Great Blue Hole at 8.6/10 — the reference point every other month on this page is measured against.
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.
March in Great Blue Hole — the year's strongest window
Best window · 8.7/10March averages 27°C (80°F) with humidity around 82%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rainfall runs 72 mm, so plan one flexible day in three; you still get about 29 sunny days and 11.9 hours of daylight.
On our climate-comfort scale this is the top-ranked month of the year for Great Blue Hole at 8.7/10 — the reference point every other month on this page is measured against.
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.
April in Great Blue Hole — the year's strongest window
Best window · 9.5/10April averages 28°C (82°F) with humidity around 82%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Expect 40 mm of rain — occasional showers rather than washed-out days — alongside about 30 sunny days and 12.4 daylight hours.
On our climate-comfort scale this is the top-ranked month of the year for Great Blue Hole at 9.5/10 — 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.
May in Great Blue Hole — reliably good (4th best month)
Good · 8.3/10May averages 28°C (83°F) with humidity around 83%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rainfall runs 92 mm, so plan one flexible day in three; you still get about 30 sunny days and 12.8 hours of daylight.
It scores 8.3/10 here, 4th of 12 months, against 9.5/10 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.
June in Great Blue Hole — workable with trade-offs
Trade-offs · 6.8/10June averages 29°C (84°F) with humidity around 83%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
239 mm of rain puts this in monsoon territory — about 27 sunny days across the whole month, and multi-day washouts are normal.
It scores 6.8/10 here, 8th of 12 months, against 9.5/10 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, April is materially better in Great Blue Hole — 2.7 points higher on the same scale.
July in Great Blue Hole — workable with trade-offs
Trade-offs · 6.8/10July averages 29°C (85°F) with humidity around 81%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
236 mm of rain puts this in monsoon territory — about 28 sunny days across the whole month, and multi-day washouts are normal.
It scores 6.8/10 here, 9th of 12 months, against 9.5/10 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 proper rain shell rather than an umbrella.
If your dates are flexible, April is materially better in Great Blue Hole — 2.7 points higher on the same scale.
August in Great Blue Hole — workable with trade-offs
Trade-offs · 6.9/10August averages 29°C (85°F) with humidity around 81%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
227 mm of rain puts this in monsoon territory — about 28 sunny days across the whole month, and multi-day washouts are normal.
It scores 6.9/10 here, 7th of 12 months, against 9.5/10 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 proper rain shell rather than an umbrella.
If your dates are flexible, April is materially better in Great Blue Hole — 2.6 points higher on the same scale.
September in Great Blue Hole — reliably good (6th best month)
Good · 7.1/10September averages 30°C (85°F) with humidity around 80%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
At 184 mm this is a genuinely wet month: about 25 sunny days in total, and outdoor plans need an indoor fallback.
It scores 7.1/10 here, 6th of 12 months, against 9.5/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination. That combination — decent conditions at the lowest rates of the year — is the best value window on this page.
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, April is materially better in Great Blue Hole — 2.4 points higher on the same scale.
October in Great Blue Hole — workable with trade-offs
Trade-offs · 6.3/10October averages 29°C (84°F) with humidity around 79%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
263 mm of rain puts this in monsoon territory — about 19 sunny days across the whole month, and multi-day washouts are normal.
It scores 6.3/10 here, 10th of 12 months, against 9.5/10 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, April is materially better in Great Blue Hole — 3.2 points higher on the same scale.
November in Great Blue Hole — workable with trade-offs
Trade-offs · 5.6/10November averages 28°C (83°F) with humidity around 80%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
327 mm of rain puts this in monsoon territory — about 14 sunny days across the whole month, and multi-day washouts are normal.
It scores 5.6/10 here, 11th of 12 months, against 9.5/10 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, April is materially better in Great Blue Hole — 3.9 points higher on the same scale.
December in Great Blue Hole — workable with trade-offs
Trade-offs · 5.6/10December averages 27°C (81°F) with humidity around 79%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
At 191 mm this is a genuinely wet month: about 11 sunny days in total, and outdoor plans need an indoor fallback.
It scores 5.6/10 here, 12th of 12 months, against 9.5/10 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 proper rain shell rather than an umbrella.
If your dates are flexible, April is materially better in Great Blue Hole — 3.9 points higher on the same scale.
