Fall in Moroni feels like a shift from August’s dry, sunny peak to a season with slightly warmer days and the return of some rainfall. Expect average daytime temperatures around 26–27°C (79–81°F), with nights staying mild near 24–25°C (75–77°F).
This mix of warmth and comfort makes fall one of the best times to spend time outside.
Rainfall picks up after the dry spell, though it stays moderate compared to the heavy wet season that comes later. Sunshine hours remain generous, especially in September, so you’ll have plenty of chances to enjoy both the coast and the city.
The ocean stays inviting, with sea temperatures hovering near 26–27°C (79–81°F). Swimming and water activities are easy to enjoy.
With calmer winds and steady daylight, fall in Moroni brings a mix of reliable weather and comfortable conditions. It’s perfect for both relaxing and exploring.
Overview of Fall Weather in Moroni
During the fall months in Moroni, you get steady warmth, high humidity, and a noticeable drop in rainfall compared to earlier in the year.
Days stay long enough for outdoor activities. Skies start out cloudy but gradually clear as fall moves on.
Seasonal Climate Characteristics
In fall, Moroni’s daily high temperatures hang around 86°F (30°C). They rarely go below 83°F or above 90°F.
Nighttime lows range from 76°F (24°C) at the start of the season to about 73°F (23°C) by the end.
Humidity stays high, with muggy conditions almost every day. Still, you’ll probably notice it feels a little less uncomfortable as the weeks go by.
The Indian Ocean surrounding Comoros keeps temperatures stable. You don’t get sharp swings between day and night.
Rainfall changes the most. At the start of fall, you might see around 5 inches of rain in a month, but by the end, it often drops below 1 inch.
This brings clearer skies, especially in May, when cloud cover hits its lowest point of the season.
Comparison to Other Seasons
When you look at fall next to other times of the year, the differences stand out. Summer in Moroni overlaps with the wettest months and brings heavy rainfall and frequent storms.
Fall, on the other hand, marks a transition toward drier weather.
Winter months feel cooler, with average highs around 82°F (28°C). Evenings are a bit milder than in fall.
Spring sees rising temperatures and heavier rains, making it less predictable for travel.
Fall strikes a balance: warm air, fewer storms, and better visibility. If you’re planning outdoor activities or sightseeing, this season gives you more reliable weather than the wetter months, and you still get that tropical warmth Comoros is known for.
Typical Fall Weather Patterns
Cloud cover drops quickly through fall. Early in the season, skies stay mostly cloudy nearly 80% of the time, but by the end, you’ll get clear or partly cloudy days more often.
Late fall turns into one of the sunniest times of the year.
Rainfall follows the same path. At the start of fall, almost half the days might bring rain, but by the end, you’re looking at about a 1 in 10 chance.
Late fall feels especially nice for travelers who want dry weather.
Winds pick up as fall goes on. Average speeds rise from about 9 mph to over 12 mph, shifting direction from north to east and then south.
With slightly cooler sea surface temperatures, around 82°F (28°C) by late fall, you get more comfortable conditions for beach days.
Average Temperatures During Fall
Moroni’s fall temperatures stay warm day and night, with only small changes as the season goes on. You’ll find steady highs in the mid-80s °F and slightly cooler nights.
The move from wetter to drier conditions brings gradual changes.
Daytime Highs and Nighttime Lows
Daytime highs in fall usually sit around 86°F (30°C). They rarely dip below 83°F (28°C) or rise above 90°F (32°C).
Afternoons stay warm, but they don’t get as hot as peak summer.
At night, lows drop from about 76°F (24°C) at the start to 73°F (23°C) by the end. Nights feel humid but remain comfortable for being outside.
You won’t run into cold evenings, as temperatures almost never fall below 71°F (22°C).
This balance of warm days and mild nights gives Moroni a stable tropical climate in fall.
Lightweight clothing works all day, and you’ll still feel fine after sunset.
Monthly Temperature Trends
Fall in Moroni runs from March through May. During this stretch, the average daily high temperature drops a bit, from 87°F (31°C) in early March to about 85°F (29°C) in late May.
Nighttime lows follow a similar pattern, dropping about 3–4°F over the season.
March is usually the warmest fall month, while May feels the coolest.
| Month | Avg. High | Avg. Low |
|---|---|---|
| March | 87°F (31°C) | 76°F (24°C) |
| April | 86°F (30°C) | 74°F (23°C) |
| May | 85°F (29°C) | 73°F (23°C) |
This gentle cooling matches the shift from the wetter months to the drier season.
Temperature Variability
Daily temperature swings in Moroni stay small compared to many places. The gap between daytime highs and nighttime lows usually sits at 10–13°F (5–7°C).
You get steady warmth without sudden drops after dark.
Extreme heat is rare in fall. Highs above 90°F (32°C) show up only occasionally, and lows below 71°F (22°C) don’t happen often.
Moroni’s fall climate is one of the most stable periods of the year.
Temperatures stay steady, so you can plan activities without worrying about sudden changes.
This reliability makes fall a comfortable season for both locals and visitors.
Rainfall and Humidity in Fall
During fall in Moroni, rainfall drops sharply as the wet season fades. Humidity remains high but starts to ease, making things a bit more comfortable as weeks pass.
Monthly Rainfall Amounts
Rainfall in Moroni falls quickly from March through May. At the start of fall, you’ll get around 5 inches (130 mm) of rain in a typical 31-day stretch.
By late May, this average drops to less than 1 inch (25 mm).
This marks the move from the wettest part of the year into the drier season.
March feels damp with frequent showers, April brings a noticeable decline, and May is often much drier.
Here’s a quick look:
| Month | Average Rainfall |
|---|---|
| March | ~130 mm (5.1 in) |
| April | ~70 mm (2.7 in) |
| May | ~25 mm (0.9 in) |
Late spring becomes a more reliable time for outdoor plans.
Frequency of Rainy Days
Rainy days drop off quickly too. In early March, you’ll face nearly a 50% chance of rain each day.
By late May, that falls to about 10%.
March often brings several wet days a week, while by May, rain is rare and usually light.
Compared to annual averages, fall brings one of the sharpest weather transitions in Comoros.
The wettest months are behind you by April, and the dry season settles in by June.
Humidity Levels
Moroni stays humid all year, but fall brings a slight dip. At the start, it feels muggy nearly 100% of the time.
By late May, that drops closer to 95%—still humid, but not quite as heavy.
Since Moroni has a tropical climate, dew points remain high, often above 70°F (21°C).
You’ll still feel sticky during the day, but nights get a bit more comfortable as humidity drops.
Even with this change, you should expect a humid environment in fall.
Compared to the peak of the rainy season, though, the air feels a little lighter and easier for outdoor fun.
Sunshine Hours and Daylight
Fall in Moroni brings a balance of steady daylight and moderate sunshine hours. The season doesn’t have big swings, but small changes in sunlight can affect your plans.
Average Daily Sunshine Hours
Sunshine levels in Moroni stay steady through fall. October stands out, with some of the year’s highest averages—about 8 hours per day.
It’s a bright time to be outside.
By November, daily sunshine often reaches 9 to 10 hours.
This is the sunniest stretch of the season, giving you plenty of daylight for sightseeing, hitting the beach, or wandering the city.
December still brings long sunny spells, averaging close to 9 hours daily.
Clouds start to show up more often toward the end of the month, but you’ll still get reliable sunlight for most of the day.
Fall is one of the best times to count on long, dry, and sunny days in Moroni.
Changes in Daylight Duration
Daylight in Moroni changes only a little during fall, since the city sits near the equator.
You can expect about 12 hours of daylight in October, with sunrise around 5:30–6:00 a.m. and sunset near 6:00 p.m.
By November, daylight shortens a bit, but only by 10 or 15 minutes. You still get nearly equal day and night.
In December, daylight hours hold steady at about 12 hours, with just minor changes.
Unlike places farther from the equator, you won’t deal with sudden early sunsets or long nights.
This consistency lets you plan your days with confidence, knowing daylight will stay predictable through fall.
Sea Temperatures and Coastal Conditions
The waters around Moroni stay warm all fall, with only slight changes from month to month.
Swimming, snorkeling, and boating remain comfortable, though wind and rainfall shifts can affect water clarity and comfort near the coast.
Average Fall Sea Temperatures
During fall, sea surface temperatures near Moroni average 82–85°F (28–29°C).
Early in the season, the water feels warmer, around 85°F, before cooling to about 82°F by late May.
This gradual change matches the broader Comoros weather pattern, as the move from wetter months to the drier season brings cooler nights and stronger winds.
Even with this cooling, the sea stays consistently warm compared to other tropical spots.
Here’s a quick breakdown:
| Month | Avg. Temperature °F | Avg. Temperature °C |
|---|---|---|
| March | 85°F | 29°C |
| April | 84°F | 29°C |
| May | 82°F | 28°C |
Even at its coolest, the sea stays above 80°F, which most swimmers find comfortable.
You won’t need a wetsuit for a casual swim, though divers might want a thin layer for longer sessions.
Swimming and Water Activities
Swimming and snorkeling are comfortable all season, with the sea rarely dipping below 82°F.
Warm water means you can take long swims without feeling chilly, even in the mornings or evenings.
As rainfall drops from March to May, visibility in the water gets better.
With fewer storms stirring up the sea, snorkeling and diving conditions improve later in fall.
Coral reefs near Grande Comore become easier to explore during this time.
Winds increase as fall goes on, averaging 9–12 mph.
Late spring turns out better for sailing and wind-based sports, but casual swimmers might find the water a bit choppier.
If you like calmer water, stick to sheltered bays.
Keep an eye on currents along exposed coastlines.
Most beaches near Moroni are safe, but stronger winds can create rougher surf, especially in May.
Always check local advice before heading out for long swims or boating trips.
Wind and Atmospheric Pressure Trends
In Moroni during the fall, winds pick up and shift direction as the season moves along. Atmospheric pressure stays mostly steady, but it still shapes the daily weather in subtle ways.
These patterns affect comfort, visibility, and the way the air feels, especially near the coast. It’s something you’ll notice if you spend much time outside.
Prevailing Winds in Fall
As fall moves forward, you’ll notice wind speeds rising. Early March usually brings winds around 8–9 mph, but by late May, they reach about 12 mph.
The shoreline gets especially breezy later in the season, which can be a relief on warm afternoons.
Wind direction doesn’t stay the same either. In early March, winds blow mostly from the north. By mid-April, they turn to the east. When May wraps up, winds settle in from the south.
This slow rotation connects to bigger wind systems in the Indian Ocean. It’s pretty interesting if you keep an eye on the weather.
These winds sweep away much of the sticky humidity that hangs around after the wet season. They boost air circulation, so outdoor conditions feel less stifling.
If you’re hanging out near the coast, you’ll probably enjoy that steady breeze. It can make even hot days feel a bit more comfortable.
Pressure Patterns and Effects
Atmospheric pressure in Moroni doesn’t jump around much in fall. It usually sits between 1012–1015 millibars.
Even though the variation is minor, it still affects rainfall and cloud cover as the season dries out.
At the beginning of fall, pressure sits a bit lower, which brings more showers.
By late May, pressure rises, and rain becomes rare. The average monthly rainfall drops from about 5 inches in March to under 1 inch in May.
You’ll see clearer skies and brighter days as fall goes on. Higher pressure mixes with those stronger winds, giving the coastline a fresher, less muggy feel than earlier in the year.
Travel Tips for Visiting Moroni in Fall
Temperatures in Moroni stay warm through fall. Highs usually land in the mid-80s °F, and humidity stays up there too.
Rainfall drops off as the season moves forward, so outdoor plans get easier and less unpredictable.
Best Activities for Fall Weather
You’ll get plenty of warm days and far less rain than earlier in the year. That makes fall a solid time to check out Moroni’s coastline and nearby villages without worrying about storms cutting your plans short.
Beach trips are a favorite, since the Indian Ocean water holds steady at about 82–84°F. Swimming, snorkeling, and diving feel great all season.
Coral reefs near Grande Comore offer clearer underwater views as clouds and rain back off.
If hiking’s your thing, drier weather makes Mount Karthala, the island’s volcano, more accessible. Trails can still feel humid, but they aren’t as muddy as during the wettest months.
Local markets in Moroni also get easier to wander through when heavy rain isn’t a constant threat.
You’ll find cultural activities are another big draw. With fewer wet days, you can spend more time exploring mosques, historic sites, and coastal villages without dodging downpours.
Packing Recommendations
Daytime highs often hit the mid-80s °F, so you’ll want to toss in light, breathable clothing—think cotton shirts, shorts, and maybe a skirt or two. Heavy fabrics just feel sticky in that humidity.
Evenings can cool off a bit. I always bring a light long-sleeved shirt or thin pants for those times. Plus, they help keep mosquitoes away, and those little guys never seem to take a break in the tropics.
Rain usually tapers off as fall moves along, but honestly, I still carry a compact umbrella or a light rain jacket, especially if it’s March or April.
Planning to hike? Pack sturdy shoes that can handle rough patches. If swimming or snorkeling is on your list, you’ll probably want water shoes and reef-safe sunscreen too.
Here’s a quick packing list I’d suggest:
- 3–4 breathable shirts
- 2–3 pairs of shorts
- 1–2 light long-sleeved shirts
- Comfortable walking shoes
- Swimwear and water shoes
- Lightweight rain protection
With this combo, you’ll feel ready for sunny days or those surprise showers.