Climate & Weather Guide in Cocos (Keeling) Islands

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

Cocos (Keeling) Islands has a warm, humid tropical maritime climate year-round, strongly moderated by the Indian Ocean. The islands are small and geographically homogeneous, so one climate zone is sufficient. Based on recent and reference climate sources, daytime temperatures are usually in the low 30s C at the warmest and low-to-mid 20s C at the coolest, with high humidity and rainfall concentrated in the wet season. The climate is generally comfortable for people who like heat, sea breezes, and minimal seasonal cold, but the persistent humidity can feel sticky for some residents and expats.

Summer Average

28-31°C

Winter Average

24-27°C

Climate Types

Tropical rainforest and Tropical savanna

Annual Rainfall

1800-2200 mm

Sunshine Hours

2,500-2,900 hrs/yr

Average Humidity

75-85%

Regional Climate Variations

Main Island Group

The main inhabited islands experience a consistently warm tropical maritime climate with little temperature variation through the year. Conditions are humid, with sea breezes helping to moderate the heat, especially near the coast. Rainfall is high overall and falls mainly in the wet season, while the drier months still remain warm and sticky. For residents and expats, the climate feels very beach-oriented and outdoors-friendly, but mold, corrosion, and humidity management are practical everyday concerns.

Summer:28-31°C

Winter:24-27°C

Very high rainfall

Hot, humid, and ocean-moderated year-round, with tropical showers and a distinctly island feel.

Cocos (Keeling) Islands is a single, small tropical climate zone with little internal variation, making it straightforward for settlement planning. It is appealing for residents who prefer warm temperatures, ocean breezes, and a relaxed island environment, but the high humidity and heavy rainfall mean less comfort for those who dislike tropical conditions.

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