Climate guide for Moroni, Comoros

Best Time to Visit
Moroni

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01 · Comoros

About Moroni

Moroni sits on the west coast of Grande Comore, the largest island of the Comoros, with a harbour and a compact medina. The old Friday mosque stands near the waterfront, and the streets behind hold shops, cafes and a market. Mount Karthala, the active volcano that forms the island, rises inland, while beaches at Chomoni lie up the coast. The dry months from May to October are most comfortable; the wet season falls between November and April.

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Did you know?

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Travel Tips

01Best time & timing
August leads the year at 9.8/10, with September and October close behind — April (7.3/10) is the one to avoid without a specific reason.
02Weather & what to pack
In August plan for about 25°C; the month brings 21 mm of rain. Pack light clothing, swimwear and strong sun protection.
03Crowds & value
Crowds build in August and rates follow; June usually pairs good conditions (9.4/10) with the lowest prices of the strong months.

Things to do in Moroni

Moroni, Comoros. Live activities and tours from GetYourGuide, matched to this destination.

When to visit Moroni: the short answer

Plan Moroni for August, with September, October close behind — the stretch with the most usable temperatures and the fewest lost days to rain: August averages 25°C with 21 mm of rain and about 25 days with 6+ hours of sunshine. The months to avoid unless you have a specific reason are April, January. If budget matters more than perfect weather, March is the strongest of the low-rate months at 7.6/10.

Across the year Moroni swings from 25°C in August to 29°C in April, a 3-degree spread, while rainfall ranges from 18 mm in October to 228 mm in January. In short, Moroni is not equally good year-round — the gap between its best and worst month is 2.5 points on the same 10-point scale.

Warmest month: April (29°C). Coolest: August (25°C). Driest: October (18 mm). Wettest: January (228 mm).

Moroni month by month

January in Moroni: strong conditions, 11th of 12

Good · 7.3/10

Days in January average 28°C (83°F) and humidity near 79% — 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 228 mm, but with about 23 days with 6+ hours of sunshine it is not a total loss; an indoor fallback covers the risk.

That is 7.3/10 on the same scale — 11th of 12 months, versus 9.8/10 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, August is materially better in Moroni — 2.5 points higher on the same scale.

February holds up well in Moroni — 9th best month

Good · 7.5/10

Days in February average 28°C (83°F) and humidity near 81% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.

175 mm of rain makes this a wet month here, though with about 23 days with 6+ hours of sunshine there is still bright weather between the fronts.

That is 7.5/10 on the same scale — 9th 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, August is materially better in Moroni — 2.3 points higher on the same scale.

March in Moroni — reliably good (8th best month)

Good · 7.6/10

March averages 28°C (83°F) and humidity near 79%, so the practical pattern is early mornings, a long midday break, and evenings back outside.

Monthly rainfall reaches 157 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 7.6/10 here, 8th 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? August scores 2.2 points higher here — enough to change the trip.

April in Moroni — reliably good (12th best month)

Good · 7.3/10

Days in April average 29°C (83°F) and humidity near 79% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.

188 mm of rain makes this a wet month here, though with about 21 days with 6+ hours of sunshine there is still bright weather between the fronts.

That is 7.3/10 on the same scale — 12th 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, August is materially better in Moroni — 2.5 points higher on the same scale.

May holds up well in Moroni — 10th best month

Good · 7.5/10

May averages 28°C (82°F) and humidity near 76%, so the practical pattern is early mornings, a long midday break, and evenings back outside.

Monthly rainfall reaches 187 mm — wet for this destination — but about 22 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.

It scores 7.5/10 here, 10th 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? August scores 2.3 points higher here — enough to change the trip.

June is one of the strongest months in Moroni (6th)

Best window · 9.4/10

Days in June average 27°C (80°F) and humidity near 73% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.

With around 41 mm of rain, any showers tend to pass through rather than settle in; about 21 days with 6+ hours of sunshine and 11.3 hours of daylight fill the rest.

On our climate-comfort scale this is one of the strongest months of the year for Moroni at 9.4/10 (6th of 12), just behind August 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.

July is one of the strongest months in Moroni (5th)

Best window · 9.5/10

With 26°C (78°F) on average, July delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.

With around 38 mm of rain, any showers tend to pass through rather than settle in; about 21 days with 6+ hours of sunshine and 11.4 hours of daylight fill the rest.

On our climate-comfort scale this is one of the strongest months of the year for Moroni at 9.5/10 (5th of 12), just behind August at 9.8/10.

Budget for peak pricing, and this is one of the busiest months here.

Pack light clothing, swimwear and real sun protection.

August: the best month of the year in Moroni

Best window · 9.8/10

August averages 25°C (78°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.

Expect 21 mm of rain — occasional showers rather than washed-out days — alongside about 25 days with 6+ hours of sunshine and 11.6 daylight hours.

On our climate-comfort scale this is the top-ranked month of the year for Moroni 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 light clothing, swimwear and real sun protection.

September in Moroni — one of the year's strongest windows (2nd)

Best window · 9.8/10

September averages 26°C (78°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.

Expect 25 mm of rain — occasional showers rather than washed-out days — alongside about 27 days with 6+ hours of sunshine and 11.9 daylight hours.

A 9.8/10 puts this among the year's best months in Moroni (2nd of 12); only August scores higher, at 9.8/10.

Figure on peak pricing, with 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 Moroni — one of the year's strongest windows (3rd)

Best window · 9.8/10

Days in October average 26°C (80°F) and humidity near 77% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.

With around 18 mm of rain, any showers tend to pass through rather than settle in; about 31 days with 6+ hours of sunshine and 12.3 hours of daylight fill the rest.

On our climate-comfort scale this is one of the strongest months of the year for Moroni at 9.8/10 (3rd of 12), just behind August at 9.8/10.

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 the lightest breathable clothing you own, a hat, and more water than feels necessary.

November in Moroni — one of the year's strongest windows (4th)

Best window · 9.7/10

Days in November average 28°C (82°F) and humidity near 77% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.

With around 33 mm of rain, any showers tend to pass through rather than settle in; about 30 days with 6+ hours of sunshine and 12.6 hours of daylight fill the rest.

On our climate-comfort scale this is one of the strongest months of the year for Moroni at 9.7/10 (4th of 12), just behind August at 9.8/10.

Budget for 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.

December is one of the strongest months in Moroni (7th)

Best window · 9.4/10

December averages 28°C (83°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 31 days with 6+ hours of sunshine and 12.7 hours of daylight.

A 9.4/10 puts this among the year's best months in Moroni (7th of 12); only August scores higher, at 9.8/10.

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.

FAQ

Frequently asked

When is the best time to visit Moroni, Comoros?
In Ideal Weather mode, the best months to visit Moroni are August, September, October, November, July, June. August is the single peak month with an Ideal Weather score of 9.8/10 based on temperature, rainfall, humidity, daylight and days with 6+ hours of sunshine.
What is the weather like in Moroni year-round?
Moroni has a climate profile suited to beach and coastal travel. Average monthly temperatures range from 25°C in August to 29°C in April, with Ideal Weather scores between 7.3 and 9.8 out of 10.
Which months should I avoid in Moroni?
The lowest Ideal Weather-scoring months in Moroni are January (7.3/10), April (7.3/10), February (7.5/10). These months typically combine less comfortable temperatures, higher rainfall or fewer days with 6+ hours of sunshine.
When is the rainy season in Moroni?
January is the wettest month in Moroni, averaging about 228 mm of rainfall. October is the driest, at roughly 18 mm.
Which is the sunniest month in Moroni?
October sees the most sun in Moroni, with about 31 days with 6+ hours of sunshine on average - ideal for outdoor plans.
Is Moroni a good destination for beach and coastal travel?
Moroni is well suited to beach and coastal travel. Its highest Ideal Weather window (August, September, October, November, July, June) aligns with the conditions travelers usually look for in this style of trip.
How is the bestime.to score for Moroni calculated?
Each month receives an Ideal Weather score from 0-10 using ERA5 climate normals for Moroni: temperature comfort, precipitation, humidity, daylight hours, and days with 6+ hours of sunshine - weighted for beach and coastal travel.

Climate data: Open-Meteo ERA5 historical archive, the five most recent complete years (2021–2025). Scores are monthly averages for that window, not forecasts, and short-window precipitation can differ from longer-term normals. “Sunny days” count days with at least 6 hours of measured sunshine — they are not dry days.

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Curated in Moroni

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