May weather forecast
British Indian Ocean Territory

May marks the onset of the dry season in the British Indian Ocean Territory. The shift from the wet monsoon season is signaled by a further decrease in precipitation levels. Rainfall in May averages around 130mm (5.12"), continuing the downward trend from April and significantly lower than the peak monsoon months.

Average temperatures during May remain fairly consistent with the preceding months, ranging from 26°C (78.8°F) to 28°C (82.4°F). Despite the start of the dry season, humidity levels remain high, often exceeding 80%, which contributes to the perception of higher temperatures.

Compared to April, May witnesses a further decrease in rainfall, while temperatures and humidity remain relatively constant. Looking forward to June, the dry season becomes more pronounced with even lower rainfall, and the temperature and humidity levels remaining steady.

As with the other months, the U.S. naval support facility on Diego Garcia, the largest settlement in the territory, experiences similar weather conditions to the rest of the islands. The British Indian Ocean Territory lacks any notable cities due to its predominantly uninhabited nature.

May is considered one of the best months to visit the territory. The reduced rainfall and relatively stable temperatures make conditions more pleasant for outdoor activities, including exploring the islands or snorkeling in the clear ocean waters. Additionally, many species of seabirds breed during this time, making it an excellent month for birdwatching.

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• Diego Garcia - May »
  On the last day of the month, sunrise is at 07:16 and sunset at 18:59 +06. In Diego Garcia, British Indian Ocean Territory, in May, during 15 rainfall days, 278mm (10.94") of precipitation is typically accumulated.