Comoros - When to Visit

When to Visit Comoros

Climate guide & best times to travel

Monthly Climate Data for Comoros Average temperature and rainfall by month Climate Overview 13°C 18°C 24°C 29°C 35°C Rainfall (mm) 0 181 363 Jan Jan: 30.0°C high, 23.0°C low, 363mm rain Feb Feb: 30.0°C high, 23.0°C low, 292mm rain Mar Mar: 30.0°C high, 23.0°C low, 279mm rain Apr Apr: 30.0°C high, 22.0°C low, 315mm rain May May: 29.0°C high, 21.0°C low, 257mm rain Jun Jun: 28.0°C high, 19.0°C low, 267mm rain Jul Jul: 27.0°C high, 18.0°C low, 244mm rain Aug Aug: 27.0°C high, 18.0°C low, 150mm rain Sep Sep: 28.0°C high, 19.0°C low, 109mm rain Oct Oct: 29.0°C high, 20.0°C low, 97mm rain Nov Nov: 30.0°C high, 21.0°C low, 109mm rain Dec Dec: 30.0°C high, 22.0°C low, 218mm rain Temperature Rainfall
Comoros straddles the equator, gifting it the textbook tropical climate you'd expect, yet the islands feel cooler than the brochures admit, thanks to ceaseless sea breezes. The year divides neatly: the dry window from May to October, when trade winds rake in from the southeast, and the wet span from November to April, when warm, moist air from the northwest delivers afternoon thunderstorms. Even in the wet season, mornings stay brilliantly clear, the storms arrive like clockwork around 2-3 pm, giving you a dependable rhythm for beach time versus indoor plans. What surprises most travelers is how the volcanic terrain hijacks local weather. Mount Karthala on Grande Comore manufactures its own microclimate, you might be dripping sweat on the coast while clouds swirl dramatically around the crater rim above. The islands also sit in a cyclone corridor, though direct hits have become rare. Humidity hovers at 70% year-round, creating that thick, perfumed air that carries ylang-ylang blossoms from the plantations straight to your lungs.

Best Time to Visit

Recommended timing for different travel styles.

Beach & Relaxation
May through October delivers the best beach days, the southeast trade winds keep things breezy and the water stays bathtub-warm without the wet season's oppressive humidity.
Cultural Exploration
September to November nails the sweet spot between crowds and weather, harvest festivals fill the calendar, and village markets overflow with fresh vanilla and cloves.
Adventure & Hiking
June to August hands you the clearest skies for climbing Mount Karthala, plus the trails firm up after the wet season ends.
Budget Travel
January through March sees the fewest tourists, which means guesthouses slash their rates and you'll likely claim entire beaches for yourself.

What to Pack

Essentials and seasonal recommendations for Comoros.

Year-Round Essentials
Reef-safe sunscreen SPF 50+
The equatorial sun is brutal, and the coral reefs around Comoros need protection, regular sunscreen damages them permanently.
Lightweight long-sleeve shirts
You'll want coverage from both sun and mosquitoes, plus they're surprisingly cooling in humid conditions.
Quick-dry microfiber towel
Everything stays damp in 70% humidity, this dries between beach sessions and guesthouse showers.
Waterproof phone pouch
Sudden downpours hit year-round, and you'll definitely want your phone for those unexpected whale sightings.
Strong insect repellent with DEET
Mosquitoes are active 24/7 in Comoros, around sunset when the air gets thick and still.
Light rain jacket
Afternoon storms during wet season can dump serious rain for 30-45 minutes, enough to soak you completely.
Spring (Mar-May)
Clothing
Light cotton pants, Breathable tank tops, Long-sleeve linen shirts
Footwear
Sturdy hiking sandals for muddy trails to waterfalls
Accessories
Wide-brim hat, Light scarf for dust
Layering Tip
Stick to light layers you can peel off as humidity builds through the day
Summer (Jun-Aug)
Clothing
Swim shorts, Loose cotton dresses, UV-protective rash guards
Footwear
Barefoot on beaches, flip-flops for village walks
Accessories
Sunglasses with strap, Light sarong
Layering Tip
One light layer for sun protection is enough, the trade winds keep things surprisingly comfortable
Autumn (Sep-Nov)
Clothing
Quick-dry shorts, Moisture-wicking t-shirts, Light sweater for boat rides
Footwear
Water shoes for rocky beaches and coral
Accessories
Buff or bandana, Waterproof dry bag
Layering Tip
Pack a light fleece for early morning boat transfers between islands
Winter (Dec-Feb)
Clothing
Rain pants, Synthetic hiking pants, Merino wool base layers
Footwear
Trail runners with good grip for slippery volcanic rock
Accessories
Packable rain poncho, Quick-dry gloves for hiking poles
Layering Tip
You'll sweat through everything anyway, prioritize quick-dry fabrics over warmth
Plug Type
Type C and Type E (European plugs)
Voltage
220V
Adapter Note
Most travelers from outside Europe will need an adapter, and voltage converters for 110V devices
Skip These Items
Heavy hiking boots, the volcanic terrain destroys them quickly and trail runners work better Warm clothes beyond a light sweater - even nights stay warm in Comoros Beach towels, guesthouses provide them and they take forever to dry in the humidity Expensive jewelry, attracts unwanted attention in villages and isn't culturally appropriate anyway Guidebooks in French, English is widely understood in tourist areas, and local guides prefer cash to book recommendations
Full Packing Checklist

Interactive checklist with shopping links for every item you need.

View Comoros Packing List →

Month-by-Month Guide

Climate conditions and crowd levels for each month of the year.

January

Peak wet season brings regular afternoon thunderstorms, though mornings are typically spectacular. The islands turn lush and green, with waterfalls racing down volcanic slopes.

High 32°C (90°F)
Low 20°C (68°F)
Rainfall 25mm (1in)
Crowds Low
View Details →
February

Still deep in wet season territory. But the storms become more predictable, brief, intense downpours that clear quickly. You'll watch locals time their daily activities around these bursts.

High 32°C (90°F)
Low 20°C (68°F)
Rainfall 25mm (1in)
Crowds Low
View Details →
March

The transition month where wet season starts losing its grip. Days swing between sultry and surprisingly fresh, on the islands' higher slopes.

High 32°C (90°F)
Low 20°C (68°F)
Rainfall 25mm (1in)
Crowds Low
View Details →
April

The last gasp of wet season, humidity peaks but storms grow less frequent. Good for photographers chasing dramatic skies over the Indian Ocean.

High 32°C (90°F)
Low 20°C (68°F)
Rainfall 25mm (1in)
Crowds Medium
View Details →
May

Dry season arrives with a sharp shift, trade winds pick up, humidity drops, and the islands feel refreshingly crisp. Beach days start getting reliably good.

High 32°C (90°F)
Low 20°C (68°F)
Rainfall 25mm (1in)
Crowds Medium
View Details →
June

Peak dry season conditions, consistent southeast winds, crystal-clear water visibility for snorkeling, and temperatures that hover in the sweet spot between warm and hot.

High 32°C (90°F)
Low 20°C (68°F)
Rainfall 25mm (1in)
Crowds High
View Details →
July

Arguably the best month weather-wise, the trade winds are at their most reliable, keeping things comfortable even at midday. Good for boat hops between islands.

High 32°C (90°F)
Low 20°C (68°F)
Rainfall 25mm (1in)
Crowds High
View Details →
August

Still firmly in dry season, though you might notice the winds starting to ease. The water stays glassy calm in the mornings, good for kayaking.

High 32°C (90°F)
Low 20°C (68°F)
Rainfall 25mm (1in)
Crowds High
View Details →
September

Shoulder season begins, fewer tourists but still excellent weather. You might catch the tail end of whale season around Moheli if you're lucky.

High 32°C (90°F)
Low 20°C (68°F)
Rainfall 25mm (1in)
Crowds Medium
View Details →
October

The transition back toward wet season starts subtly, humidity creeps up but storms haven't returned yet. Great for hiking without the mud.

High 32°C (90°F)
Low 20°C (68°F)
Rainfall 25mm (1in)
Crowds Medium
View Details →
November

Wet season announces itself properly, afternoon storms return with impressive lightning displays over the ocean. The islands green up rapidly.

High 32°C (90°F)
Low 20°C (68°F)
Rainfall 25mm (1in)
Crowds Low
View Details →
December

Classic wet season weather, mornings are your window for activities before the daily thunderstorm ritual begins. The scent of frangipani hangs heavy in the humid air.

High 32°C (90°F)
Low 20°C (68°F)
Rainfall 25mm (1in)
Crowds Low
View Details →