January: the best month of the year in Diani Beach
Best window · 9.8/10January averages 28°C (82°F) and humidity near 77%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Expect 29 mm of rain — occasional showers rather than washed-out days — alongside about 28 days with 6+ hours of sunshine and 12.2 daylight hours.
On our climate-comfort scale this is the top-ranked month of the year for Diani Beach at 9.8/10 — the reference point every other month on this page is measured against.
Figure on 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.
February in Diani Beach — one of the year's strongest windows (2nd)
Best window · 9.6/10February averages 28°C (83°F) and humidity near 73%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Expect 39 mm of rain — occasional showers rather than washed-out days — alongside about 28 days with 6+ hours of sunshine and 12.1 daylight hours.
A 9.6/10 puts this among the year's best months in Diani Beach (2nd of 12); only January scores higher, at 9.8/10.
Figure on 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 is one of the strongest months in Diani Beach (5th)
Best window · 9.2/10Days in March average 28°C (83°F) and humidity near 74% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
Budget for roughly 57 mm of rain this month — a flexible day or two helps — with about 30 days with 6+ hours of sunshine and 12 hours of daylight to work around it.
On our climate-comfort scale this is one of the strongest months of the year for Diani Beach at 9.2/10 (5th of 12), just behind January at 9.8/10.
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 Diani Beach — middling scores, decent value
Trade-offs · 6.7/10April averages 28°C (82°F) and humidity near 80%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
267 mm makes this the wettest stretch of the year, though about 20 days with 6+ hours of sunshine still appear — keep an indoor fallback ready.
It scores 6.7/10 here, 12th of 12 months, against 9.8/10 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? January scores 3.1 points higher here — enough to change the trip.
May in Diani Beach — reliably good (11th best month)
Good · 7/10Days in May average 27°C (80°F) and humidity near 81% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
This is the year's wettest stretch at 220 mm, but with about 21 days with 6+ hours of sunshine it is not a total loss; an indoor fallback covers the risk.
That is 7/10 on the same scale — 11th of 12 months, versus 9.8/10 for the best month here.
Budget for 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, January is materially better in Diani Beach — 2.8 points higher on the same scale.
June holds up well in Diani Beach — 8th best month
Good · 7.9/10June averages 26°C (78°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Rainfall runs 93 mm, so plan one flexible day in three; you still get about 18 days with 6+ hours of sunshine and 11.8 hours of daylight.
It scores 7.9/10 here, 8th of 12 months, against 9.8/10 in the destination's best month.
Plan for low-season pricing, with crowds are light for this destination.
Pack light clothing, swimwear and real sun protection, a packable rain layer.
Flexible dates? January scores 1.9 points higher here — enough to change the trip.
July in Diani Beach: strong conditions, 7th of 12
Good · 8.3/10July 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 70 mm, so plan one flexible day in three; you still get about 18 days with 6+ hours of sunshine and 11.8 hours of daylight.
It scores 8.3/10 here, 7th of 12 months, against 9.8/10 in the destination's best month.
Figure on mid-season pricing, with crowds are moderate.
Pack light clothing, swimwear and real sun protection, a packable rain layer.
Flexible dates? January scores 1.5 points higher here — enough to change the trip.
August ranks 3rd of 12 for Diani Beach — one of the best windows
Best window · 9.3/10With 25°C (77°F) on average, August delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.
Budget for roughly 48 mm of rain this month — a flexible day or two helps — with about 24 days with 6+ hours of sunshine and 11.9 hours of daylight to work around it.
On our climate-comfort scale this is one of the strongest months of the year for Diani Beach at 9.3/10 (3rd of 12), just behind January at 9.8/10.
Budget for 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, a packable rain layer.
September in Diani Beach: strong conditions, 9th of 12
Good · 7.7/10With 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.
142 mm of rain makes this a wet month here, though with about 27 days with 6+ hours of sunshine there is still bright weather between the fronts.
That is 7.7/10 on the same scale — 9th of 12 months, versus 9.8/10 for the best month here.
Expect low-season pricing, and crowds are light for this destination.
Pack light clothing, swimwear and real sun protection, a proper rain shell rather than an umbrella.
If your dates are flexible, January is materially better in Diani Beach — 2.1 points higher on the same scale.
October is one of the strongest months in Diani Beach (4th)
Best window · 9.3/10October averages 26°C (79°F) and humidity near 77%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rainfall runs 48 mm, so plan one flexible day in three; you still get about 30 days with 6+ hours of sunshine and 12.1 hours of daylight.
A 9.3/10 puts this among the year's best months in Diani Beach (4th of 12); only January scores higher, at 9.8/10.
Plan for 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 Diani Beach — reliably good (10th best month)
Good · 7.2/10November averages 27°C (81°F) and humidity near 80%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
206 mm makes this the wettest stretch of the year, though about 26 days with 6+ hours of sunshine still appear — keep an indoor fallback ready.
It scores 7.2/10 here, 10th of 12 months, against 9.8/10 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? January scores 2.6 points higher here — enough to change the trip.
December is one of the strongest months in Diani Beach (6th)
Best window · 8.6/10Days 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.
Budget for roughly 82 mm of rain this month — a flexible day or two helps — with about 29 days with 6+ hours of sunshine and 12.2 hours of daylight to work around it.
On our climate-comfort scale this is one of the strongest months of the year for Diani Beach at 8.6/10 (6th of 12), just behind January at 9.8/10.
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.
