Best: Feb · Great: Jan, Mar
Weather shifts through genuine seasons here, from January's cool stretch to April's warmth, with rain a little heavier around September and lighter around February — real variation, but nothing as sharp as a true monsoon or Mediterranean dry season. In February, expect highs around 29°C with rain on roughly 5 days of the month.
The Chagos Archipelago's coral atolls, among the most pristine and undisturbed reef systems left on Earth, are the territory's defining feature — though access is tightly restricted to military and research personnel.
Very limited access means dining options are minimal; provisions are typically self-supplied.
Daylight, sunrise, and sunset are calculated exactly from this region's latitude. Temperature and rainfall are modeled from its general climate type, not measured station data. Month summaries are generated from those modeled figures.
Expect warm days around 29°/25°C, with occasional rain (~8 rainy days).
Expect warm days around 29°/25°C, with occasional rain (~5 rainy days).
Expect warm days around 30°/26°C, with occasional rain (~7 rainy days).
Expect hot days around 31°/27°C, with frequent rain (~10 rainy days).
Expect warm days around 30°/26°C, with very wet conditions (~18 rainy days).
Expect warm days around 29°/26°C, with very wet conditions (~17 rainy days).
Expect warm days around 29°/25°C, with very wet conditions (~16 rainy days).
Expect warm days around 29°/25°C, with very wet conditions (~16 rainy days).
Expect warm days around 29°/25°C, with very wet conditions (~20 rainy days).
Expect warm days around 29°/25°C, with very wet conditions (~18 rainy days).
Expect warm days around 29°/25°C, with frequent rain (~14 rainy days).
Expect warm days around 29°/25°C, with frequent rain (~10 rainy days).