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Climate & Weather Guide in Comoros

Climate zones, seasonal temperatures, rainfall patterns, and best travel times

Comoros is an enchanting archipelago in the Indian Ocean with a predominantly tropical rainforest climate (Köppen Af). The islands experience warm temperatures year-round, averaging around 26°C, with high humidity levels between 77-81%. The climate is characterized by abundant rainfall, particularly during the austral summer months (January-April), while a drier season occurs from June to September. This tropical atmosphere creates lush vegetation and ideal conditions for diverse flora and fauna, making it an attractive destination for nature enthusiasts.

Summer Average

30-33°C

Winter Average

21-26°C

Climate Types

Tropical rainforest

Annual Rainfall

1500-2500 mm

Sunshine Hours

2,400-2,800 hrs/yr

Average Humidity

77-81%

Regional Climate Variations

Grande Comore

The largest island boasts a vibrant tropical climate with consistent warmth throughout the year, averaging 26°C. This island paradise experiences the most pronounced wet season from January to April, with January receiving peak rainfall of 211 mm. The dry season from June to September offers sun-seekers minimal rainfall around 27 mm in August. High humidity levels create a lush, verdant landscape ideal for tropical vegetation and outdoor activities.

Summer:30-33°C
Winter:21-26°C
Very high rainfall

Warm, humid tropical atmosphere with distinct wet and dry seasons; ideal for those seeking consistent tropical warmth and lush natural beauty

Anjouan and Mohéli Islands

These smaller islands share the same tropical rainforest classification as Grande Comore, experiencing similar temperature patterns and precipitation regimes. With no dry season and high temperatures year-round, both islands maintain the characteristic Af climate with abundant moisture supporting dense vegetation. The islands benefit from the same seasonal rainfall patterns, with peak precipitation during the austral summer and reduced rainfall during the cooler months.

Summer:30-33°C
Winter:21-26°C
Very high rainfall

Consistently warm tropical environment with no true dry season; perfect for residents seeking stable, humid tropical conditions year-round

Comoros maintains a uniform tropical rainforest climate (Köppen Af) across all three main islands, with warm temperatures averaging 26°C and high humidity throughout the year. The archipelago experiences significant rainfall, particularly from January to April, with a drier period from June to September, though precipitation remains substantial year-round. This climate creates an ideal environment for nature lovers and those seeking a consistently warm, lush tropical setting.