January ranks 6th of 12 for Zanzibar — one of the best windows
Best window · 8.6/10January averages 28°C (83°F) and humidity near 76%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rainfall runs 77 mm, so plan one flexible day in three; you still get about 30 days with 6+ hours of sunshine and 12.4 hours of daylight.
A 8.6/10 puts this among the year's best months in Zanzibar (6th of 12); only February scores higher, at 9.6/10.
Plan for peak pricing, with crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.
February in Zanzibar tops the year's climate scores
Best window · 9.6/10February averages 29°C (84°F) and humidity near 73%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Expect 41 mm of rain — occasional showers rather than washed-out days — alongside about 27 days with 6+ hours of sunshine and 12.3 daylight hours.
On our climate-comfort scale this is the top-ranked month of the year for Zanzibar at 9.6/10 — the reference point every other month on this page is measured against.
Plan for peak pricing, with 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 Zanzibar — reliably good (8th best month)
Good · 8.3/10Days in March average 28°C (83°F) and humidity near 75% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
Budget for roughly 93 mm of rain this month — a flexible day or two helps — with about 30 days with 6+ hours of sunshine and 12.1 hours of daylight to work around it.
That is 8.3/10 on the same scale — 8th of 12 months, versus 9.6/10 for the best month here.
Budget for 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 Zanzibar: mixed conditions, plan around the weather
Trade-offs · 6.5/10April averages 26°C (79°F) and humidity near 86%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
357 mm makes this the wettest stretch of the year, though about 22 days with 6+ hours of sunshine still appear — keep an indoor fallback ready.
It scores 6.5/10 here, 12th of 12 months, against 9.6/10 in the destination's best month.
Figure on low-season pricing, with 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.
Flexible dates? February scores 3.1 points higher here — enough to change the trip.
May in Zanzibar: strong conditions, 10th of 12
Good · 7.4/10Days in May average 26°C (79°F) and humidity near 81% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
139 mm of rain makes this a wet month here, though with about 29 days with 6+ hours of sunshine there is still bright weather between the fronts.
That is 7.4/10 on the same scale — 10th of 12 months, versus 9.6/10 for the best month here.
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 Zanzibar — 2.2 points higher on the same scale.
June is one of the strongest months in Zanzibar (7th)
Best window · 8.5/10June averages 25°C (77°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Rainfall runs 79 mm, so plan one flexible day in three; you still get about 29 days with 6+ hours of sunshine and 11.8 hours of daylight.
A 8.5/10 puts this among the year's best months in Zanzibar (7th of 12); only February scores higher, at 9.6/10.
Figure on mid-season pricing, with crowds are moderate.
Pack light clothing, swimwear and real sun protection, a packable rain layer.
July ranks 4th of 12 for Zanzibar — one of the best windows
Best window · 9.3/10July averages 25°C (76°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Rainfall runs 47 mm, so plan one flexible day in three; you still get about 30 days with 6+ hours of sunshine and 11.8 hours of daylight.
A 9.3/10 puts this among the year's best months in Zanzibar (4th of 12); only February scores higher, at 9.6/10.
Plan for peak pricing, with this is one of the busiest months here.
Pack light clothing, swimwear and real sun protection, a packable rain layer.
August ranks 2nd of 12 for Zanzibar — one of the best windows
Best window · 9.5/10With 25°C (76°F) on average, August delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.
With around 41 mm of rain, any showers tend to pass through rather than settle in; about 31 days with 6+ hours of sunshine and 11.9 hours of daylight fill the rest.
On our climate-comfort scale this is one of the strongest months of the year for Zanzibar at 9.5/10 (2nd of 12), just behind February at 9.6/10.
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 light clothing, swimwear and real sun protection.
September is one of the strongest months in Zanzibar (3rd)
Best window · 9.5/10With 25°C (78°F) on average, September delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.
With around 40 mm of rain, any showers tend to pass through rather than settle in; about 30 days with 6+ hours of sunshine and 12.1 hours of daylight fill the rest.
On our climate-comfort scale this is one of the strongest months of the year for Zanzibar at 9.5/10 (3rd of 12), just behind February at 9.6/10.
Budget for peak pricing, and crowds are moderate. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack light clothing, swimwear and real sun protection.
October in Zanzibar — one of the year's strongest windows (5th)
Best window · 8.7/10October averages 26°C (79°F) and humidity near 75%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rainfall runs 75 mm, so plan one flexible day in three; you still get about 30 days with 6+ hours of sunshine and 12.2 hours of daylight.
A 8.7/10 puts this among the year's best months in Zanzibar (5th of 12); only February scores higher, at 9.6/10.
Figure on mid-season pricing, with crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.
November in Zanzibar — reliably good (11th best month)
Good · 7.4/10November averages 27°C (81°F) and humidity near 78%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Monthly rainfall reaches 143 mm — wet for this destination — but about 28 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.
It scores 7.4/10 here, 11th of 12 months, against 9.6/10 in the destination's best month.
Plan for low-season pricing, with 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.
Flexible dates? February scores 2.2 points higher here — enough to change the trip.
December in Zanzibar: strong conditions, 9th of 12
Good · 7.8/10Days in December average 28°C (82°F) and humidity near 79% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
118 mm of rain makes this a wet month here, though with about 31 days with 6+ hours of sunshine there is still bright weather between the fronts.
That is 7.8/10 on the same scale — 9th of 12 months, versus 9.6/10 for the best month here.
Budget for 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, February is materially better in Zanzibar — 1.8 points higher on the same scale.
